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two extremes of federalism can be distinguished: at one extreme, the strong federal state is almost completely unitary, with few powers reserved for local governments; while at the other extreme, the national government may be a federal state in name only, being a confederation in actuality. Federalism may encompass as few as two or three internal divisions, as is the case in Belgium or Bosnia and Herzegovina. The governments of Argentina, Australia, Brazil, India, and Mexico, among others, are also organized along federalist principles. In Canada, federalism typically implies opposition to sovereigntist movements (most commonly Quebec separatism). In 1999, the Government of Canada established the Forum of Federations as an international network for exchange of best practices among federal and federalizing countries. Headquartered in Ottawa, the Forum of Federations partner governments include Australia, Brazil, Ethiopia, Germany, India, Mexico, Nigeria, Pakistan and Switzerland. Europe vs. the United States Sixty percent of the American continent is organized as federal states, while in Europe federations are the exception: Germany, Austria and Switzerland are the only federal states in Europe. In Europe, "federalist" is sometimes used to describe those who favor a common federal government, with distributed power at regional, national and supranational levels. Most European federalists want this development to continue within the European Union. Although there are medieval and early modern examples of European states which used confederal and federal systems, contemporary European federalism originated in post-war Europe; one of the more important initiatives was Winston Churchill's speech in Zürich in 1946. In the United States, federalism originally referred to belief in a stronger central government. When the U.S. Constitution was being drafted, the Federalist Party supported a stronger central government, while "Anti-Federalists" wanted a weaker central government. This is very different from the modern usage of "federalism" in Europe and the United States. The distinction stems from the fact that "federalism" is situated in the middle of the political spectrum between a confederacy and a unitary state. The U.S. Constitution was written as a reaction to the Articles of Confederation, under which the United States was a loose confederation with a weak central government. In contrast, Europe has a greater history of unitary states than North America, thus European "federalism" argues for a weaker central government, relative to a unitary state. The modern American usage of the word is much closer to the European sense. As the power of the U.S. federal government has increased, some people have perceived a much more unitary state than they believe the Founding Fathers intended. Most people politically advocating "federalism" in the United States argue in favor of limiting the powers of the federal government, especially the judiciary (see Federalist Society, New Federalism). The contemporary concept of federalism came about with the creation of an entirely new system of government that provided for democratic representation at two governing levels simultaneously, which was implemented in the US Constitution. In the United States implementation of federalism, a bicameral general government, consisting of a chamber of popular representation proportional to population (the House of Representatives), and a chamber of equal State-based representation consisting of two delegates per State (the Senate), was overlaid upon the pre-existing regional governments of the thirteen independent States. With each level of government allocated a defined sphere of powers, under a written constitution and the rule of law (that is, subject to the independent third-party arbitration of a supreme court in competence disputes), the two levels were thus brought into a coordinate relationship for the first time. In 1946, Kenneth Wheare observed that the two levels of government in the US were "co-equally supreme". In this, he echoed the perspective of American founding father James Madison who saw the several States as forming "distinct and independent portions of the supremacy" in relation to the general government. Anarchism Anarchists are against the state, but they are not against political organization or "governance", so long as it is self-governance utilizing direct democracy. The mode of political organization preferred by anarchists, in general, is federalism or confederalism. However, the anarchist definition of federalism tends to differ from the definition of federalism assumed by pro-state political scientists. The following is a brief description of federalism from section I.5 of An Anarchist FAQ: "The social and political structure of anarchy is similar to that of the economic structure, i.e., it is based on a voluntary federation of decentralized, directly democratic policy-making bodies. These are the neighborhood and community assemblies and their confederations. In these grassroots political units, the concept of "self-management" becomes that of "self-government", a form of municipal organisation in which people take back control of their living places from the bureaucratic state and the capitalist class whose interests it serves. [...] The key to that change, from the anarchist standpoint, is the creation of a network of participatory communities based on self-government through direct, face-to-face democracy in grassroots neighborhood and community assemblies [meetings for discussion, debate, and decision making]. [...] Since not all issues are local, the neighborhood and community assemblies will also elect mandated and re-callable delegates to the larger-scale units of self-government in order to address issues affecting larger areas, such as urban districts, the city or town as a whole, the county, the bio-region, and ultimately the entire planet. Thus the assemblies will confederate at several levels in order to develop and co-ordinate common policies to deal with common problems. [...] This need for co-operation does not imply a centralized body. To exercise your autonomy by joining self-managing organisations and, therefore, agreeing to abide by the decisions you help make is not a denial of that autonomy (unlike joining a hierarchical structure, where you forsake autonomy within the organisation). In a centralized system, we must stress, power rests at the top and the role of those below is simply to obey (it matters not if those with the power are elected or not, the principle is the same). In a federal system, power is not delegated into the hands of a few (obviously a "federal" government or state is a centralized system). Decisions in a federal system are made at the base of the organisation and flow upwards so ensuring that power remains decentralized in the hands of all. Working together to solve common problems and organize common efforts to reach common goals is not centralization and those who confuse the two make a serious error – they fail to understand the different relations of authority each generates and confuse obedience with co-operation." Christian Church Federalism also finds expression in ecclesiology (the doctrine of the church). For example, presbyterian church governance resembles parliamentary republicanism (a form of political federalism) to a large
speech in Zürich in 1946. In the United States, federalism originally referred to belief in a stronger central government. When the U.S. Constitution was being drafted, the Federalist Party supported a stronger central government, while "Anti-Federalists" wanted a weaker central government. This is very different from the modern usage of "federalism" in Europe and the United States. The distinction stems from the fact that "federalism" is situated in the middle of the political spectrum between a confederacy and a unitary state. The U.S. Constitution was written as a reaction to the Articles of Confederation, under which the United States was a loose confederation with a weak central government. In contrast, Europe has a greater history of unitary states than North America, thus European "federalism" argues for a weaker central government, relative to a unitary state. The modern American usage of the word is much closer to the European sense. As the power of the U.S. federal government has increased, some people have perceived a much more unitary state than they believe the Founding Fathers intended. Most people politically advocating "federalism" in the United States argue in favor of limiting the powers of the federal government, especially the judiciary (see Federalist Society, New Federalism). The contemporary concept of federalism came about with the creation of an entirely new system of government that provided for democratic representation at two governing levels simultaneously, which was implemented in the US Constitution. In the United States implementation of federalism, a bicameral general government, consisting of a chamber of popular representation proportional to population (the House of Representatives), and a chamber of equal State-based representation consisting of two delegates per State (the Senate), was overlaid upon the pre-existing regional governments of the thirteen independent States. With each level of government allocated a defined sphere of powers, under a written constitution and the rule of law (that is, subject to the independent third-party arbitration of a supreme court in competence disputes), the two levels were thus brought into a coordinate relationship for the first time. In 1946, Kenneth Wheare observed that the two levels of government in the US were "co-equally supreme". In this, he echoed the perspective of American founding father James Madison who saw the several States as forming "distinct and independent portions of the supremacy" in relation to the general government. Anarchism Anarchists are against the state, but they are not against political organization or "governance", so long as it is self-governance utilizing direct democracy. The mode of political organization preferred by anarchists, in general, is federalism or confederalism. However, the anarchist definition of federalism tends to differ from the definition of federalism assumed by pro-state political scientists. The following is a brief description of federalism from section I.5 of An Anarchist FAQ: "The social and political structure of anarchy is similar to that of the economic structure, i.e., it is based on a voluntary federation of decentralized, directly democratic policy-making bodies. These are the neighborhood and community assemblies and their confederations. In these grassroots political units, the concept of "self-management" becomes that of "self-government", a form of municipal organisation in which people take back control of their living places from the bureaucratic state and the capitalist class whose interests it serves. [...] The key to that change, from the anarchist standpoint, is the creation of a network of participatory communities based on self-government through direct, face-to-face democracy in grassroots neighborhood and community assemblies [meetings for discussion, debate, and decision making]. [...] Since not all issues are local, the neighborhood and community assemblies will also elect mandated and re-callable delegates to the larger-scale units of self-government in order to address issues affecting larger areas, such as urban districts, the city or town as a whole, the county, the bio-region, and ultimately the entire planet. Thus the assemblies will confederate at several levels in order to develop and co-ordinate common policies to deal with common problems. [...] This need for co-operation does not imply a centralized body. To exercise your autonomy by joining self-managing organisations and, therefore, agreeing to abide by the decisions you help make is not a denial of that autonomy (unlike joining a hierarchical structure, where you forsake autonomy within the organisation). In a centralized system, we must stress, power rests at the top and the role of those below is simply to obey (it matters not if those with the power are elected or not, the principle is the same). In a federal system, power is not delegated into the hands of a few (obviously a "federal" government or state is a centralized system). Decisions in a federal system are made at the base of the organisation and flow upwards so ensuring that power remains decentralized in the hands of all. Working together to solve common problems and organize common efforts to reach common goals is not centralization and those who confuse the two make a serious error – they fail to understand the different relations of authority each generates and confuse obedience with co-operation." Christian Church Federalism also finds expression in ecclesiology (the doctrine of the church). For example, presbyterian church governance resembles parliamentary republicanism (a form of political federalism) to a large extent. In Presbyterian denominations, the local church is ruled by elected elders, some of which are ministerial. Each church then sends representatives or commissioners to presbyteries and further to a general assembly. Each greater level of assembly has ruling authority over its constituent members. In this governmental structure, each component has some level of sovereignty over itself. As in political federalism, in presbyterian ecclesiology, there is shared sovereignty. Other ecclesiologies also have significant representational and federalists components, including the more anarchic congregational ecclesiology, and even in more hierarchical episcopal ecclesiology. Some Christians argue that the earliest source of political realism (or federalism in human institutions; in contrast to theological federalism) is the ecclesiastical federalism found in the Bible. They point to the structure of the early Christian Church as described (and prescribed, as believed by many) in the New Testament. In their arguments, this is particularly demonstrated in the Council of Jerusalem, described in Acts chapter 15, where the Apostles and elders gathered together to govern the Church; the Apostles being representatives of the universal Church, and elders being such for the local church. To this day, elements of federalism can be found in almost every Christian denomination, some more than others.
is also notable for proofreading or correcting the writings of Isaac Newton and other scholars. Biography Firmin Abauzit was born of Huguenot parents on 11 November 1679 at Uzès, in Languedoc. His paternal family traces its origin to an Arab physician who settled in Toulouse during the 9th century. Accordingly, the name “Abauzit” is liked derived from the Arabic “Abu Zaid” (father of Zaid). His father died when he was but two years of age; and when, on the revocation of the Edict of Nantes in 1685, the authorities took steps to have him educated in the Roman Catholic faith, his mother contrived his escape. For two years his brother and he lived as fugitives in the mountains of the Cévennes, but they at last reached Geneva, where their mother afterwards joined them on escaping from the imprisonment in which she was held from the time of their flight. Abauzit at an early age acquired great proficiency in languages, physics, and theology. In 1698, he traveled to Germany, then to Holland, where he became acquainted with Pierre Bayle, Pierre Jurieu and Jacques Basnage. Proceeding to England, he was introduced to Sir Isaac Newton, who found in him one of the earliest defenders, against Castel of his discoveries. Newton corrected in the second edition of his Principia an error pointed out by Abauzit, and, when sending him the Commercium Epistolicum, said, "You are well worthy to judge between Gottfried Leibniz and me." The reputation of Abauzit induced William III to request him to settle in England, but he did not accept the king's offer, preferring to return to Geneva. There, from 1715 he rendered valuable assistance to a society that had been formed for translating the New Testament into French. He declined the offer of the chair of philosophy at the University of Geneva in 1723. He assisted in the French language
reputation of Abauzit induced William III to request him to settle in England, but he did not accept the king's offer, preferring to return to Geneva. There, from 1715 he rendered valuable assistance to a society that had been formed for translating the New Testament into French. He declined the offer of the chair of philosophy at the University of Geneva in 1723. He assisted in the French language New Testament in 1726. In 1727, he was granted citizenship in Geneva, and he accepted the office of honorary librarian to Geneva, the city of his adoption. It was while he was in Geneva in his later years that he authored many of his works. Here also was the city of his death past the age of 87, on 20 March 1767. Legacy Abauzit was a man of great learning and of wonderful versatility. Whatever chanced to be discussed, it used to be said of Abauzit that he seemed to have made it a subject of particular study. Rousseau, who was jealously sparing of his praises, addressed to him, in his Julie, ou la nouvelle Héloïse, a fine panegyric; and when a stranger flatteringly told Voltaire he had come to see a great man, the philosopher asked him if he had seen Abauzit. Among his acquaintances, Abauzit claimed Rousseau, Voltaire, Newton, and Bayle. Little remains of the labours of this intellectual giant, his heirs having, it is said, destroyed the papers that came into their possession, because their own religious opinions were different. A few theological, archaeological, and astronomical articles from his pen appeared in the Journal helvétique and elsewhere, and he contributed several papers to Rousseau's Dictionnaire de musique (1767). He wrote a work throwing doubt on the canonical authority of the Apocalypse, which called forth a reply from Dr Leonard Twells, and was published in Denis Diderot's Encyclopédie. He also edited and made valuable additions to Jacob
chevron denotes five years of service in the Legion. Seniority chevrons are not worn by commissioned officers. Honorary ranks Honorary ranks have been awarded by the French Army to individuals credited with exceptional acts of courage since 1796. In the Foreign Legion, General Paul-Frédéric Rollet introduced the practice of awarding honorary Legion ranks to distinguished individuals, both civilian and military, in the early 20th century. Recipients of these honorary appointments had participated with units of the Legion on active service in an exemplary manner, or had rendered exceptional service to the Legion in non-combat situations. More than 1,200 individuals have been granted honorary ranks in the Legion pour services éminent. The majority of these awards have been made to military personnel in wartime, earning titles such as Legionnaire d'Honneur or Sergent-Chef de Légion d'honneur, while other recipients have included nurses, journalists, painters, and ministers who have rendered meritorious service to the Foreign Legion. Pioneers The Pionniers (pioneers) are the combat engineers and a traditional unit of the Foreign Legion. The sapper traditionally sport large beards, wear leather aprons and gloves and hold axes. The sappers were very common in European armies during the Napoleonic Era but progressively disappeared during the 19th century. The French Army, including the Legion disbanded its regimental sapper platoons in 1870. However, in 1931 one of a number of traditions restored to mark the hundredth anniversary of the Legion's founding was the reestablishment of its bearded Pionniers. In the French Army, since the 18th century, every infantry regiment included a small detachment of pioneers. In addition to undertaking road building and entrenchment work, such units were tasked with using their axes and shovels to clear obstacles under enemy fire opening the way for the rest of the infantry. The danger of such missions was recognised by allowing certain privileges, such as being authorised to wear beards. The current pioneer platoon of the Foreign Legion is provided by the Legion depot and headquarters regiment for public ceremonies. The unit has reintroduced the symbols of the Napoleonic sappers: the beard, the axe, the leather apron, the crossed-axes insignia and the leather gloves. When parades of the Foreign Legion are opened by this unit, it is to commemorate the traditional role of the sappers "opening the way" for the troops. Cadences and marching steps Also notable is the marching pace of the Foreign Legion. In comparison to the 116-step-per-minute pace of other French units, the Foreign Legion has an 88-step-per-minute marching speed. It is also referred to by Legionnaires as the "crawl". This can be seen at ceremonial parades and public displays attended by the Foreign Legion, particularly while parading in Paris on 14 July (Bastille Day Military Parade). Because of the impressively slow pace, the Foreign Legion is always the last unit marching in any parade. The Foreign Legion is normally accompanied by its own band, which traditionally plays the march of any one of the Foreign Legion's regiments, except that of the unit actually on parade. The regimental song of each unit and "Le Boudin" is sung by legionnaires standing at attention. Also, because the Foreign Legion must always stay together, it does not break formation into two when approaching the presidential grandstand, as other French military units do, in order to preserve the unity of the legion. Contrary to popular belief, the adoption of the Foreign Legion's slow marching speed was not due to a need to preserve energy and fluids during long marches under the hot Algerian sun. Its exact origins are unclear, but the official explanation is that although the pace regulation does not seem to have been instituted before 1945, it hails back to the slow marching pace of the Ancien Régime, and its reintroduction was a "return to traditional roots". This was in fact, the march step of the Foreign Legion's ancestor units – the Régiments Étrangers or Foreign Regiments of the Ancien Régime French Army, the Grande Armées foreign units, and the pre-1831 foreign regiments. Uniform From its foundation until World War I the Foreign Legion normally wore the uniform of the French line infantry for parade with a few special distinctions. Essentially this consisted of a dark blue coat (later tunic) worn with red trousers. The field uniform was often modified under the influence of the extremes of climate and terrain in which the Foreign Legion served. Shakos were soon replaced by the light cloth kepi, which was far more suitable for North African conditions. The practice of wearing heavy capotes (greatcoats) on the march and vestes (short hip-length jackets) as working dress in barracks was followed by the Foreign Legion from its establishment. One short lived aberration was the wearing of green uniforms in 1856 by Foreign Legion units recruited in Switzerland for service in the Crimean War. In the Crimea itself (1854–59) a hooded coat and red or blue waist sashes were adopted for winter dress, while during the Mexican Intervention (1863–65) straw hats or sombreros were sometimes substituted for the kepi. When the latter was worn it was usually covered with a white "havelock" (linen cover) – the predecessor of the white kepi that was to become a symbol of the Foreign Legion. Foreign Legion units serving in France during the Franco-Prussian War of 1870–71 were distinguishable only by minor details of insignia from the bulk of the French infantry. However subsequent colonial campaigns saw an increasing use of special garments for hot weather wear such as collarless keo blouses in Tonkin 1884–85, khaki drill jackets in Dahomey (1892) and drab covered topees worn with all-white fatigue dress in Madagascar (1895). In the early 20th century the legionnaire wore a red kepi with blue band and piping, dark blue tunic with red collar, red cuff patches, and red trousers. Distinctive features were the green epaulettes (replacing the red of the line) worn with red woollen fringes; plus the embroidered Legion badge of a red flaming grenade, worn on the kepi front instead of a regimental number. In the field a light khaki cover was worn over the kepi, sometimes with a protective neck curtain attached. The standard medium-blue double breasted greatcoat (capote) of the French infantry was worn, usually buttoned back to free the legs for marching. From the 1830s the legionnaires had worn a broad blue woollen sash around the waist, like other European units of the French Army of Africa (such as the Zouaves or the Chasseurs d'Afrique), while indigenous units of the Army of Africa (spahis and tirailleurs) wore red sashes. White linen trousers tucked into short leather leggings were substituted for red serge in hot weather. This was the origin of the "Beau Geste" image. In barracks a white bleached kepi cover was often worn together with a short dark blue jacket ("veste") or white blouse plus white trousers. The original kepi cover was khaki and due to constant washing turned white quickly. The white or khaki kepi cover was not unique to the Foreign Legion at this stage but was commonly seen amongst other French units in North Africa. It later became particularly identified with the Foreign Legion as the unit most likely to serve at remote frontier posts (other than locally recruited tirailleurs who wore fezzes or turbans). The variances of climate in North Africa led the French Army to the sensible expedient of letting local commanders decide on the appropriate "tenue de jour" (uniform of the day) according to circumstances. Thus a legionnaire might parade or walk out in blue tunic and white trousers in hot weather, blue tunic and red trousers in normal temperatures or wear the blue greatcoat with red trousers under colder conditions. The sash could be worn with greatcoat, blouse or veste but not with the tunic. Epaulettes were a detachable dress item worn only with tunic or greatcoat for parade or off duty wear. Officers wore the same dark blue (almost black) tunics as those of their colleagues in the French line regiments, except that black replaced red as a facing colour on collar and cuffs. Gold fringed epaulettes were worn for full dress and rank was shown by the number of gold rings on both kepi and cuffs. Trousers were red with black stripes or white according to occasion or conditions. All-white or light khaki uniforms (from as early as the 1890s) were often worn in the field or for ordinary duties in barracks. Non-commissioned officers were distinguished by red or gold diagonal stripes on the lower sleeves of tunics, vestes and greatcoats. Small detachable stripes were buttoned on to the front of the white shirt-like blouse. Prior to 1914 units in Indo-China wore white or khaki Colonial Infantry uniforms with Foreign Legion insignia, to overcome supply difficulties. This dress included a white sun helmet of a model that was also worn by Foreign Legion units serving in the outposts of Southern Algeria, though never popular with its wearers. During the initial months of World War I, Foreign Legion units serving in France wore the standard blue greatcoat and red trousers of the French line infantry, distinguished only by collar patches of the same blue as the capote, instead of red. After a short period in sky-blue the Foreign Legion adopted khaki, in common with other units of the Armée d'Afrique, with steel helmets, from early 1916. A mustard shade of khaki drill had been worn on active service in Morocco from 1909, replacing the classic blue and white. The latter continued to be worn in the relatively peaceful conditions of Algeria throughout World War I, although increasingly replaced by khaki drill. The pre-1914 blue and red uniforms could still be occasionally seen as garrison dress in Algeria until stocks were used up about 1919. During the early 1920s plain khaki drill uniforms of a standard pattern became universal issue for the Foreign Legion with only the red and blue kepi (with or without a cover) and green collar braiding to distinguish the Legionnaire from other French soldiers serving in North African and Indo-China. The neck curtain ceased to be worn from about 1915, although it survived in the newly raised Foreign Legion Cavalry Regiment into the 1920s. The white blouse (bourgeron) and trousers dating from 1882 were retained for fatigue wear until the 1930s. At the time of the Foreign Legion's centennial in 1931, a number of traditional features were reintroduced at the initiative of the then commander Colonel Rollet. These included the blue sash and green/red epaulettes. In 1939 the white covered kepi won recognition as the official headdress of the Foreign Legion to be worn on most occasions, rather than simply as a means of reflecting heat and protecting the blue and red material underneath. The Third Foreign Infantry Regiment adopted white tunics and trousers for walking-out dress during the 1930s and all Foreign Legion officers were required to obtain full dress uniforms in the pre-war colours of black and red from 1932 to 1939. During World War II the Foreign Legion wore a wide range of uniform styles depending on supply sources. These ranged from the heavy capotes and Adrian helmets of 1940 through to British battledress and American field uniforms from 1943 to 1945. The white kepi was stubbornly retained whenever possible. From 1940 until 1963 the Foreign Legion maintained four Saharan Companies (Compagnies Sahariennes) as part of the French forces used to patrol and police the desert regions to the south of Morocco and Algeria. Special uniforms were developed for these units, modeled on those of the French officered Camel Corps (Méharistes) having prime responsibility for the Sahara. In full dress these included black or white zouave style trousers, worn with white tunics and long flowing cloaks. The Legion companies maintained their separate identity by retaining their distinctive kepis, sashes and fringed epaulettes. The white kepis, together with the sash and epaulettes survive in the Foreign Legion's modern parade dress. Since the 1990s the modern kepi has been made wholly of white material rather than simply worn with a white cover. Officers and senior noncommissioned officers still wear their kepis in the pre-1939 colours of dark blue and red. A green tie and (for officers) a green waistcoat recall the traditional branch colour of the Foreign Legion. From 1959 a green beret (previously worn only by the legion's paratroopers) became the universal ordinary duty headdress, with the kepi reserved for parade and off duty wear. Other items of currently worn dress are the standard issue of the French Army. Equipment The Legion is basically equipped with the same equipment as similar units elsewhere in the French Army. These include: The FAMAS assault rifle, a French-made automatic bullpup-style rifle, chambered in the 5.56×45mm NATO round. The FAMAS is being replaced by the Heckler & Koch HK416. The 13e DBLE, was the first French Army regiment to use the new rifle. The SPECTRA is a ballistic helmet, designed by the French military, fitted with real-time positioning and information system, and with light amplifiers for night vision. The FÉLIN suit, an infantry combat system that combines ample pouches, reinforced body protections and a portable electronic platform. Commandement de la Légion Étrangère (1931–present) Commandement de la Légion Étrangère (1931–1984) Gallery Legacy Beyond its reputation as an elite unit often engaged in serious fighting, the recruitment practices of the Foreign Legion have also led to a somewhat romanticised view of it being a place for disgraced or "wronged" men looking to leave behind their old lives and start new ones. This view of the legion is common in literature, and has been used for dramatic effect in many films, not the least of which are the several versions of Beau Geste. Three songs by Edith Piaf, most notably "Non, je ne regrette rien" (No, I regret nothing), became associated with the legion, during the 1960s when members of the Legion were accused of being implicated in a failed coup d'état during the Algerian War. Today it is still a popular Legion "chant" sung when on parade, adapting it to their unique marching cadence of 88 steps to the minute. Various fictional portrayals and references to the legion have been made over the years, such as in film, television, music, video games and art. Emulation by other countries Chinese Ever Victorious Army The Ever Victorious Army was the name given to a Chinese imperial army in the late 19th century. Commanded by Frederick Townsend Ward, the new force originally comprised about 200 mostly European mercenaries, recruited in the Shanghai area from sailors, deserters and adventurers. Many were dismissed in the summer of 1861, but the remainder became the officers of the Chinese soldiers recruited mainly in and around Sungkiang (Songjiang). The Chinese troops were increased to 3,000 by May 1862, all equipped with Western firearms and equipment by the British authorities in Shanghai. Throughout its four-year existence the Ever Victorious Army was mainly to operate within a thirty-mile radius of Shanghai. It was disbanded in May 1864 with 104 foreign officers and 2,288 Chinese soldiers being paid off. The bulk of the artillery and some infantry transferred to the Chinese Imperial forces. It was the first Chinese army trained in European techniques, tactics, and strategy. Israeli Mahal In Israel, Mahal (, an acronym for Mitnadvei Ḥutz LaAretz, which means Volunteers from outside the Land [of Israel]) is a term designating non-Israelis serving in the Israeli military. The term originates with the approximately 4,000 both Jewish and non-Jewish volunteers who went to Israel to fight in the 1948 Arab–Israeli War including Aliyah Bet. The original Mahalniks were mostly World War II veterans who had previously served in the American and British armed forces. Today, there is a program, Garin Tzabar, within the Israeli Ministry of Defense that administers the enlistment of non-Israeli citizens in the country's armed forces. Programs enable foreigners to join the Israel Defense Forces if they are of Jewish descent (which is defined as at least one grandparent). Netherlands KNIL Army Though not named "Foreign Legion", the Dutch Koninklijk Nederlandsch-Indische Leger (KNIL), or Royal Netherlands-Indian Army (in reference to the Dutch East Indies, now Indonesia), was created in 1830, a year before the French Foreign Legion, and is therefore not an emulation but an entirely original idea and had a similar recruitment policy. It stopped being an army of foreigners around 1900 when recruitment was restricted to Dutch citizens and to the indigenous peoples of the Dutch East Indies. The KNIL was finally disbanded on 26 July 1950, seven months after the Netherlands formally recognised Indonesia as a sovereign state, and almost five years after Indonesia declared its independence. Rhodesian Light Infantry and 7 Independent Company During the Rhodesian Bush War of the 1960s and 1970s, the Rhodesian Security Forces enlisted volunteers from overseas on the same pay and conditions of service as locally based regulars. The vast majority of the Rhodesian Army's foreigners joined the Rhodesian Light Infantry (RLI), a heliborne commando regiment with a glamorous international reputation; this unit became colloquially known as the "Rhodesian foreign legion" as a result, even though foreigners never made up more than about a third of its men. According to Chris Cocks, an RLI veteran, "the RLI was a mirror of the French Foreign Legion, in that recruiters paid little heed as to a man's past and asked no questions. ... And like the Foreign Legion, once in the ranks, a man's past was irrelevant." Just as French Foreign Legionnaires must speak French, the Rhodesian Army required its foreigners to be English-speakers. Many of them were professional soldiers, attracted by the regiment's reputation—mostly former British soldiers, or Vietnam veterans from the United States, Australian and New Zealand forces—and these became a key part of the unit. Others, with no military experience, were often motivated to join the Rhodesian Army by their opposition to communism, or a desire for adventure or to escape the past. After the Rhodesians' overseas recruiting campaign for English-speakers, started in 1974, proved successful, they began recruiting French-speakers as well, in 1977. These francophone recruits were placed in their own unit, 7 Independent Company, Rhodesia Regiment, which was commanded by French-speaking officers and operated entirely in French. The experiment was not generally considered a success by the Rhodesian commanders, however, and the company was disbanded in early 1978. Russian "Foreign Legion" In 2010 the service conditions of the Russian military changed to allow foreigners. The actual term Russian "Foreign Legion" is a colloquial expression without any official recognition. Under the plan, foreigners without dual citizenship are able to sign up for five-year contracts and will be eligible for Russian citizenship after serving three years. Experts say the change opens the way for Commonwealth of Independent States citizens to get fast-track Russian citizenship, and counter the effects of Russia's demographic crisis on its army recruitment. Spanish "Foreign Legion" The Spanish Foreign Legion was created in 1920, in emulation of the French one, and had a significant role in Spain's colonial wars in Morocco and in the Spanish Civil War on the Nationalist side. The Spanish Foreign Legion recruited foreigners until 1986 but unlike its French model, the number of non-Spanish recruits never exceeded 25%, most of these from Latin America. It is now called the Spanish Legion and only recruits Spanish nationals. Notable members The following is a list of notable people who are or were members of the Foreign Legion: Jean Danjou – Commander at the Battle of Camarón. Susan Travers Roger Faulques Alan Seeger Mamady Doumbouya – Guinean military officer who led the 2021 Guinean coup d'état and is currently Guinea's head of state acting as the Chairman of the National Committee of Reconciliation and Development. See also Airborne units of France Brigade of Gurkhas List of battles involving the Foreign Legion List of Foreign Legionnaires Foreign Legion Museum Wild Geese – Irish soldiers who fought for France List of militaries that recruit foreigners Spanish Legion International Legion International Brigades Memorial to the American Volunteers, Paris Lafayette Escadrille, a World War I volunteer air squadron Beau Geste, a novel (with many film adaptations) James Waddell, a New Zealander, highly decorated officer Count Aage of Rosenborg, a Danish Prince who served in the Foreign Legion and died with the rank of lieutenant-colonel References Further reading Roger Rousseau, The French Foreign Legion in Kolwezi, 2006. Chris Dickon, A Rendezvous with Death: Alan Seeger in Poetry, at War, 2019 Edward Morlae, A Soldier of the Legion,
The couple of hectares that were the battlefield today are corn fields surrounding a stele which commemorates the sacrifices of those who died there. While the garrison of Dien Bien Phu included French regular, North African, and locally recruited (Indochinese) units, the battle has become associated particularly with the paratroops of the Foreign Legion. During the Indochina War, the Legion operated several armoured trains which were an enduring Rolling Symbol during the chartered course duration of French Indochina. The Legion also operated various Passage Companies relative to the continental conflicts at hand. Algerian War 1954–1962 Foreign Legion paratroops The legion was heavily engaged in fighting against the National Liberation Front and the Armée de Libération Nationale (ALN). The main activity during the period 1954–1962 was as part of the operations of the 10th Parachute Division and 25th Parachute Division. The 1st Foreign Parachute Regiment, 1er REP, was under the command of the 10th Parachute Division (France), 10ème DP, and the 2nd Foreign Parachute Regiment, 2ème REP, was under the command of the 25th Parachute Division (France), 25ème DP. While both the 1st Foreign Parachute Regiment (1er REP), and the 2nd Foreign Parachute Regiment (2ème REP), were part of the operations of French parachute divisions (10ème DP and 25ème DP established in 1956), the Legion's 1st Foreign Parachute Regiment (1er REP), and the Legion's 2nd Foreign Parachute Regiment (2ème REP), are older than the French divisions. The 1er REP was the former thrice-reconstituted 1st Foreign Parachute Battalion (1er BEP) and the 2ème REP was the former 2nd Foreign Parachute Battalion (2ème BEP). Both battalions were renamed and their Legionnaires transferred from Indochina on 1 August 1954 to Algeria by 1 November 1954. Both traced their origins to the Parachute Company of the 3rd Foreign Infantry Regiment commanded by Legion Lieutenant Jacques Morin attached to the III/1er R.C.P. With the start of the War in Algeria on 1 November 1954, the two foreign participating parachute battalions back from Indochina, the 1st Foreign Parachute Battalion (1er BEP, III Formation) and the 2nd Foreign Parachute Battalion (2ème BEP), were not part of any French parachute divisions yet and were not designated as regiments until September and 1 December 1955 respectively. Main operations during the Algerian War included the Battle of Algiers and the Bataille of the Frontiers, fought by 60,000 soldiers including French and Legion paratroopers. For paratroopers of the Legion, the 1st Foreign Parachute Regiment (1er REP) and 2nd Foreign Parachute Regiment (2ème REP), were the only known foreign active parachute regiments, exclusively commanded by Pierre Paul Jeanpierre for the 1er REP and the paratrooper commanders of the 2ème REP. The remainder of French paratrooper units of the French Armed Forces were commanded by Jacques Massu, Buchond, Marcel Bigeard, Paul Aussaresses. Other Legion offensives in the mountains in 1959 included operations Jumelles, Cigales, and Ariège in the Aures and the last in Kabylie. The image of the Legion as a professional and non-political force was tarnished when the elite 1st Foreign Parachute Regiment 1er REP, which was also part of the 10th Parachute Division played a leading role in the generals' putsch of 1961 and was subsequently disbanded. Generals' putsch and reduction of Foreign Legion Coming out of a difficult Indochinese conflict, the Foreign Legion, reinforced cohesion by extending the duration of basic training. Efforts exerted were successful during this transit; however, entering into December 1960 and the generals' putsch, a crisis hit the legion putting its faith at the corps of the Army. For having rallied to the generals' putsch of April 1961, the 1st Foreign Parachute Regiment of the 10th Parachute Division was dissolved on 30 April 1961 at Zeralda. In 1961, at the issue of the putsch, the 1st Mounted Saharan Squadron of the Foreign Legion () received the missions to assure surveillance and policing. The independence of Algeria from the French in 1962 was traumatising since it ended with the enforced abandonment of the barracks command center at Sidi Bel Abbès established in 1842. Upon being notified that the elite regiment was to be disbanded and that they were to be reassigned, legionnaires of the 1er REP burned the Chinese pavilion acquired following the Siege of Tuyên Quang in 1884. The relics from the Legion's history museum, including the wooden hand of Captain Jean Danjou, subsequently accompanied the Legion to France. Also removed from Sidi Bel Abbès were the symbolic Legion remains of General Paul-Frédéric Rollet ( The Father of the Legion ), Legion officer Prince Count Aage of Rosenborg, and Legionnaire Heinz Zimmermann (last fatal casualty in Algeria). The Legion acquired its parade song "Non, je ne regrette rien" ("No, I regret nothing"), a 1960 Édith Piaf song sung by Sous-Officiers and legionnaires as they left their barracks for re-deployment following the Algiers putsch of 1961. The song has remained a part of Legion heritage since. The 1st Foreign Parachute Regiment 1er REP was disbanded on 30 April 1961. However, the 2nd Foreign Parachute Regiment 2ème REP prevailed in existence, while most of the personnel of the Saharan Companies were integrated into the 1st Foreign Infantry Regiment, 2nd Foreign Infantry Regiment and 4th Foreign Infantry Regiment respectively. Post-colonial Africa By the mid-1960s the Legion had lost its traditional and spiritual home in French Algeria and elite units had been dissolved. President de Gaulle considered disbanding it altogether but, being reminded of the Marching Regiments, and that the 13th Demi-Brigade was one of the first units to declare for him in 1940 and taking also into consideration the effective service of various Saharan units and performances of other Legions units, he chose instead to downsize the Legion from 40,000 to 8,000 men and relocate it to metropolitan France. Legion units continued to be assigned to overseas service, although not in North Africa (see below). 1962–present In the early 1960s, and besides ongoing global rapid deployments, the Legion also stationed forces on various continents while operating different function units. From 1965 to 1967, the Legion operated several companies, including the 5th Heavy Weight Transport Company (CTGP), mainly in charge of evacuating the Sahara. The area of responsibility of some of these units extended from the confines of the in-between of the Sahara to the Mediterranean. Ongoing interventions and rapid deployments two years later and the following years included in part: 1969–1971 : interventions in Chad 1978–present : Peacekeeping operations around the Mediterranean, including the United Nations Interim Force in Lebanon during the Global War on Terror 1978–1978 : Battle of Kolwezi (Zaïre) 1981–1984 : Peacekeeping operations in Lebanon at the corps of the United Nations Multinational Force during the Lebanese Civil War along with the 31ème Brigade which included the 1st Foreign Regiment 1er RE. Operation Épaulard I was spearheaded by Lieutenant-colonel Bernard Janvier. The Multinational Force also included the British Armed Forces 1st The Queen's Dragoon Guards, U.S. American contingents of United States Marine Corps and the United States Navy, the French Navy and 28 exclusive French Armed Forces regiments including French paratroopers regiments, companies, units of the 11th Parachute Brigade along with the 2nd Foreign Parachute Regiment 2e REP. The multinational force also included the Irish Armed Forces and units of the French National Gendarmerie, Italian paratroopers from the Folgore Brigade, and infantry units from the Bersaglieri regiments and Marines of the San Marco Battalion. Gulf War 1990–1991 In September 1990, the 1st Foreign Regiment 1er RE, the 1st Foreign Cavalry Regiment 1er REC, the 2nd Foreign Parachute Regiment 2ème REP, the 2nd Foreign Infantry Regiment 2ème REI, and the 6th Foreign Engineer Regiment 6ème REG were sent to the Persian Gulf as a part of Opération Daguet along with the 1st Spahi Regiment, the 11th Marine Artillery Regiment, the 3rd Marine Infantry Regiment, the 21st Marine Infantry Regiment, the French Army Light Aviation, the Marine Infantry Tank Regiment, French paratroopers regiments including components of the 35th Parachute Artillery Regiment 35ème RAP, the 1st Parachute Hussard Regiment 1er RHP, the 17th Parachute Engineer Regiment 17ème RGP and other airborne contingents. Division Daguet was commanded by Général de brigade Bernard Janvier. The Legion force, mainly comprising 27 different nationalities, was attached to the French 6th Light Armoured Division 6ème D.L.B, whose mission was to protect the Coalition's left flank while cover fired by the marine's artillery. During the Gulf War, DINOPS operated in support of the U.S. Army's 82nd Airborne Division, and provided the EOD services to the division. After the cease fire took hold they conducted a joint mine clearing operation alongside a Royal Australian Navy Clearance Diver Team Unit. After the four-week air campaign, coalition forces launched the ground offensive. They quickly penetrated deep into Iraq, with the Legion taking the As-Salman Airport, meeting little resistance. The war ended after a hundred hours of fighting on the ground, which resulted in very light casualties for the Legion. Post 1991 1991: Evacuation of French citizens and foreigners in Rwanda, Gabon and Zaire. 1992: Cambodia and Somalia 1993: Sarajevo, Bosnia and Herzegovina 1995: Rwanda 1996: Central African Republic 1997: Congo-Brazzaville Since 1999: KFOR in Kosovo and North Macedonia 2001–present 2001–2014: Operation Enduring Freedom in Afghanistan 2002–2003: Operation Licorne in Ivory Coast 2008: EUFOR Tchad/RCA in Chad 2013–2014: Operation Serval in the Northern Mali conflict 2015–present: Opération Sentinelle in Metropolitan France. Organization Regarding the operational aspect, the units of the Legion belong to different brigades or territorial commands of the French Army. On the other hand, with regard to the administrative management (including recruitment, traditions and training), these units depend on the Foreign Legion Command (COMLE), which itself is subordinate to the Army. The regiments are now mainly stationed in Metropolitan France, with some units in the overseas departments and territories (mainly in French Guiana). Mainland France 1er Régiment Étranger (1er RE), based in Aubagne, France (HQ, selection and administration, other specific missions) Pionniers Sections of Tradition 1er Régiment Étranger de Cavalerie (1er REC), based in Camp de Carpiagne, France 1er Régiment Étranger de Génie (1er REG), based in Laudun, France Pionniers Groups 2e Régiment Étranger d’Infanterie (2ème REI), based in Nîmes, France 2e Régiment Étranger de Génie (2ème REG), based in St Christol, France Pionniers Groups 2e Régiment Étranger de Parachutistes (2ème REP), based in Calvi, Corsica 4e Régiment Étranger (4èmeRE), based in Castelnaudary, France Pionniers Groups Groupement de Recrutement de la Légion Etrangère (G.R.L.E), based at Fort de Nogent, France 13e Demi-Brigade de Légion Étrangère (13ème DBLE), based in La Cavalerie, France French Overseas Territories and Overseas Collectives, France 3e Régiment Étranger d’Infanterie (3ème REI), based in French Guiana Pionniers Groups Détachement de Légion Étrangère de Mayotte (DLEM) Current deployments These are the following deployments: Note: English names for countries or territories are in parentheses. Opérations extérieures (other than at home bases or on standard duties) Guyane (French Guiana) Mission de presence sur l'Oyapok – Protection – 3ème REI Protection CSG; 2ème REP / CEA; 2ème REI / 4ème compagnie Afghanistan Intervention 1er REC / 3° escadron (1 peloton); 2ème REI / 4° compagnie OMLT; 2ème REG / 1ère compagnie Mayotte (Departmental Collectivity of Mayotte) Prevention DLEM Mission de souveraineté Gabon Prevention 2ème REP / 3ème compagnie – 4ème compagnie DINOPS, PCG and Commandos 2ème REP Commando Parachute Group (GCP); Pathfinders qualified in Direct Actions, Special Reconnaissance and IMEX. 1er Régiment Étranger de Génie 1er REG; Parachute Underwater Demolition P.C.G Teams (Combat Engineer Divers, ), DINOPS Teams of Nautical Subaquatic Intervention Operational Detachment (). 2e Régiment Étranger de Génie 2ème REG; Parachute Underwater Demolition P.C.G Teams (Combat Engineer Divers, ), DINOPS Teams of Nautical Subaquatic Intervention Operational Detachment () and Mountain Commando Group (GCM) in some cases as double specialties. Composition The legionnaires are an integral part of the French Army. Today, they constitute some 7–8% of its strength (or 11% of the Ground Operational Forces, FOT, French Army operational units). The Foreign Legion is the only unit of the French Army open to people of any nationality. Most legionnaires still come from European countries but a growing percentage comes from Latin America and Asia. most of the Foreign Legion's commissioned officers are French with approximately 10 percent being Legionnaires who have risen through the ranks. Legionnaires are highly trained soldiers and the Legion is unique in that it is open to foreign recruits willing to serve in the French Armed Forces. The Legion is today known as a unit whose training focuses on traditional military skills and on its strong esprit de corps, as its men come from different countries with different cultures. Consequently, training is often described as not only physically challenging, but also very stressful psychologically. French citizenship may be applied for after three years' service. The Legion is the only part of the French Military that does not swear allegiance to France, but to the Foreign Legion itself. Any soldier who gets wounded during a battle for France can immediately apply to be a French citizen under a provision known as "" ("French by spilled blood"). As of 2021, members come from 140 different countries. Legionnaires were, in the past, forced to enlist under a pseudonym ("declared identity"). This policy existed in order to allow recruits who wanted to restart their lives to enlist. The Legion held the belief that it was fairer to make all new recruits use declared identities. French citizens can enlist under a declared, fictitious, foreign citizenship (generally, a francophone one, often that of Belgium, Canada, or Switzerland). As of 20 September 2010, new recruits may enlist under their real identities or under declared identities. Recruits who do enlist with declared identities may, after one year's service, regularise their situations under their true identities. After serving in the Foreign Legion for three years, a legionnaire may apply for French citizenship. He must be serving under his real name, must have no problems with the authorities, and must have served with "honour and fidelity". While the Foreign Legion historically did not accept women in its ranks, there was one official female member, Susan Travers, an Englishwoman who joined Free French Forces during World War II and became a member of the Foreign Legion after the war, serving in Vietnam during the First Indochina War. Women were barred from service until 2000, when then-French Defence Minister Alain Richard had stated that he wanted to take the level of female recruitment in the Legion to 20 percent by 2020. Membership by country As of 2008, legionnaires came from 140 countries. The majority of enlisted men originate from outside France, while the majority of the officer corps consists of Frenchmen. Many recruits originate from Eastern Europe and Latin America. Neil Tweedie of The Daily Telegraph said that Germany traditionally provided many recruits, "somewhat ironically given the Legion's bloody role in two world wars." He added that "Brits, too, have played their part, but there was embarrassment recently when it emerged that many British applicants were failing selection due to endemic unfitness." Alsace-Lorraine Original nationalities of the Foreign Legion reflect the events in history at the time they join. Many former Wehrmacht personnel joined in the wake of World War II as many soldiers returning to civilian life found it hard to find reliable employment. Jean-Denis Lepage reports that "The Foreign Legion discreetly recruited from German P.O.W. camps", but adds that the number of these recruits has been subsequently exaggerated. Bernard B. Fall, who was a supporter of the French government, writing in the context of the First Indochina War, questioned the notion that the Foreign Legion was mainly German at that time, calling it: [a] canard…with the sub-variant that all those Germans were at least SS generals and other much wanted war criminals. As a rule, and in order to prevent any particular nation from making the Foreign Legion into a Praetorian Guard, any particular national component is kept at about 25 percent of the total. Even supposing (and this was the case, of course) that the French recruiters, in the eagerness for candidates would sign up Germans enlisting as Swiss, Austrian, Scandinavian and other nationalities of related ethnic background, it is unlikely that the number of Germans in the Foreign Legion ever exceeded 35 percent. Thus, without making an allowance for losses, rotation, discharges, etc., the maximum number of Germans fighting in Indochina at any one time reached perhaps 7,000 out of 278,000. As to the ex-Nazis, the early arrivals contained a number of them, none of whom were known to be war criminals. French intelligence saw to that. Since, in view of the rugged Indochinese climate, older men without previous tropical experience constituted more a liability than an asset, the average age of the Foreign Legion enlistees was about 23. At the time of the battle of Dien Bien Phu, any legionnaire of that age group was at the worst, in his "Hitler Youth" shorts when the [Third] Reich collapsed. The Foreign Legion accepts people enlisting under a nationality that is not their own. A proportion of the Swiss and Belgians are actually likely to be Frenchmen who wish to avoid detection. In addition many Alsatians are said to have joined the Foreign Legion when Alsace was part of the German Empire, and may have been recorded as German while considering themselves French. Regarding recruitment conditions within the Foreign Legion, see the official page (in English) dedicated to the subject: With regard to age limits, recruits can be accepted from ages ranging from 17 ½ (with parental consent) to 39.5 years old. Countries that allow post-Foreign Legion contract In the Commonwealth Realms, its collective provisions provide for nationals to commute between armies in training or other purposes. Moreover, this 'blanket provision' between member-states cannot exclude others for it would seem inappropriate to single out individual countries, that is, France in relation to the Legion. For example, Australia and New Zealand may allow post-Legion enlistment providing the national has commonwealth citizenship. Britain allows post-Legion enlistment. Canada allows post-Legion enlistment in its ranks with a completed five-year contract. In the European Union framework, post Legion enlistment is less clear. Denmark, Norway, Germany and Portugal allow post-Legion enlistment while The Netherlands has constitutional articles that forbid it. [Rijkswet op het Nederlanderschap, Artikel 15, lid 1e, (In Dutch:)] (that is: one can lose his Dutch nationality by accepting a foreign nationality or can lose his Dutch nationality by serving in the army of a foreign state that is engaged in a conflict against the Dutch Kingdom or one of its allies). The European Union twin threads seem to be recognized dual nationality status or restricting constitutional article. The United States allows post-legion enlistment in its National Guard of career soldiers (up to the rank of captain) who are Green Card holders. Israel allows post-Legion enlistment. One of the biggest national groups in the Legion are Poles. Polish law allows service in a foreign army, but only after written permission from the Ministry of National Defence. Recruitment process Basic training While all rank and file members of the Legion are required to serve under "Foreign Status" (à titre étranger), even if they are French nationals, non-commissioned and commissioned officers can serve under either French or Foreign Status. Foreign Status NCOs and officers are exclusively promoted from the ranks and represent 10% of the officers corps of the Legion. French Status officers are either members of other units of the French Army attached to the Legion or promoted Legionnaires who have chosen to become French nationals. Basic training for the Foreign Legion is conducted in the 4th Foreign Regiment. This is an operational combat regiment which provides a training course of 15–17 weeks, before recruits are assigned to their operational units: Initial training of 4–6 weeks at The Farm (La Ferme) – introduction to military lifestyle; outdoor and field activities. March (Marche Képi Blanc) – a 50-kilometer (31 mi) two-day march (25 km per day) in full kit, followed by the Kepi Blanc ceremony on the 3rd day. Technical and practical training (alternating with barracks and field training) – three weeks. Mountain training (Chalet at Formiguière in the French Pyrenees) – one week. Technical and practical training (alternating barracks and field training) – three weeks. Examinations and obtaining of the elementary technical certificate (CTE) – one week. March (Raid Marche) – a 120-kilometer (75 mi) final march, which must be completed in three days. Light vehicle drivers education (drivers license) – one week. Return to Aubagne before reporting to the assigned operational regiment – one week. Education in the French language (reading, writing and pronunciation) is taught on a daily basis throughout all of basic training. Traditions As the Foreign Legion is composed of soldiers of different nationalities and backgrounds, it is necessary to develop an intense esprit de corps, which is achieved through the development of camaraderie, specific traditions, the loyalty of its legionnaires, the quality of their training, and the pride of being a soldier in an elite unit. Code of honour The "Legionnaire's Code of Honour" is the Legion's creed, recited in French only. The Code of Honour was adopted in the 1980s. Mottos Honneur et Fidélité In contrast to all other French Army units, the motto embroidered on the Foreign Legion's regimental flags is not Honneur et Patrie (Honour and Fatherland) but Honneur et Fidélité (Honour and Fidelity). Legio Patria Nostra Legio Patria Nostra (in French La Légion est notre Patrie, in English The Legion is our Fatherland) is the Latin motto of the Foreign Legion. The adoption of the Foreign Legion as a new "Fatherland" does not imply the repudiation by the legionnaire of his original nationality. The Foreign Legion is required to obtain the agreement of any legionnaire before he is placed in any situation where he might have to serve against his country of birth. Regimental mottos 1er R.E: Honneur et Fidélité G.R.L.E: Honneur et Fidélité 1er REC: Honneur et Fidélité and Nec Pluribus Impar (No other equal) 2e REP: Honneur et Fidélité and More Majorum (in the manner, ways and traditions of our veterans foreign regiments) 2e REI: Honneur et Fidélité and Être prêt (Be ready) 2e REG: Honneur et Fidélité and Rien n'empêche (Nothing prevents) 3e REI: Honneur et Fidélité and Legio Patria Nostra 4e R.E: Honneur et Fidélité and Creuset de la Légion et Régiment des fortes têtes (The crucible of the Legion and the strong right minded regiment) 1e REG: Honneur et Fidélité and Ad Unum (All to one end – for the regiment until the last one) 13e DBLE: Honneur et Fidélité and More Majorum ("in the manner, ways and traditions of our veterans foreign regiments") DLEM: Honneur et Fidélité and
Positive and negative feedback Positive feedback: If the signal feedback from output is in phase with the input signal, the feedback is called positive feedback. Negative feedback: If the signal feedback is of opposite polarity or out of phase by 180° with respect to input signal, the feedback is called negative feedback. As an example of negative feedback, the diagram might represent a cruise control system in a car, for example, that matches a target speed such as the speed limit. The controlled system is the car; its input includes the combined torque from the engine and from the changing slope of the road (the disturbance). The car's speed (status) is measured by a speedometer. The error signal is the departure of the speed as measured by the speedometer from the target speed (set point). This measured error is interpreted by the controller to adjust the accelerator, commanding the fuel flow to the engine (the effector). The resulting change in engine torque, the feedback, combines with the torque exerted by the changing road grade to reduce the error in speed, minimizing the road disturbance. The terms "positive" and "negative" were first applied to feedback prior to WWII. The idea of positive feedback was already current in the 1920s with the introduction of the regenerative circuit. Friis and Jensen (1924) described regeneration in a set of electronic amplifiers as a case where the "feed-back" action is positive in contrast to negative feed-back action, which they mention only in passing. Harold Stephen Black's classic 1934 paper first details the use of negative feedback in electronic amplifiers. According to Black: According to Mindell (2002) confusion in the terms arose shortly after this: Even prior to the terms being applied, James Clerk Maxwell had described several kinds of "component motions" associated with the centrifugal governors used in steam engines, distinguishing between those that lead to a continual increase in a disturbance or the amplitude of an oscillation, and those that lead to a decrease of the same. Terminology The terms positive and negative feedback are defined in different ways within different disciplines. the altering of the gap between reference and actual values of a parameter, based on whether the gap is widening (positive) or narrowing (negative). the valence of the action or effect that alters the gap, based on whether it has a happy (positive) or unhappy (negative) emotional connotation to the recipient or observer. The two definitions may cause confusion, such as when an incentive (reward) is used to boost poor performance (narrow a gap). Referring to definition 1, some authors use alternative terms, replacing positive/negative with self-reinforcing/self-correcting, reinforcing/balancing, discrepancy-enhancing/discrepancy-reducing or regenerative/degenerative respectively. And for definition 2, some authors advocate describing the action or effect as positive/negative reinforcement or punishment rather than feedback. Yet even within a single discipline an example of feedback can be called either positive or negative, depending on how values are measured or referenced. This confusion may arise because feedback can be used for either informational or motivational purposes, and often has both a qualitative and a quantitative component. As Connellan and Zemke (1993) put it: Limitations of negative and positive feedback While simple systems can sometimes be described as one or the other type, many systems with feedback loops cannot be so easily designated as simply positive or negative, and this is especially true when multiple loops are present. Other types of feedback In general, feedback systems can have many signals fed back and the feedback loop frequently contain mixtures of positive and negative feedback where positive and negative feedback can dominate at different frequencies or different points in the state space of a system. The term bipolar feedback has been coined to refer to biological systems where positive and negative feedback systems can interact, the output of one affecting the input of another, and vice versa. Some systems with feedback can have very complex behaviors such as chaotic behaviors in non-linear systems, while others have much more predictable behaviors, such as those that are used to make and design digital systems. Feedback is used extensively in digital systems. For example, binary counters and similar devices employ feedback where the current state and inputs are used to calculate a new state which is then fed back and clocked back into the device to update it. Applications Mathematics and dynamical systems By using feedback properties, the behavior of a system can be altered to meet the needs of an application; systems can be made stable, responsive or held constant. It is shown that dynamical systems with a feedback experience an adaptation to the edge of chaos. Biology In biological systems such as organisms, ecosystems, or the biosphere, most parameters must stay under control within a narrow range around a certain optimal level under certain environmental conditions. The deviation of the optimal value of the controlled parameter can result from the changes in internal and external environments. A change of some of the environmental conditions may also require change of that range to change for the system to function. The value of the parameter to maintain is recorded by a reception system and conveyed to a regulation module via an information channel. An example of this is insulin oscillations. Biological systems contain many types of regulatory circuits, both positive and negative. As in other contexts, positive and negative do not imply that the feedback causes good or bad effects. A negative feedback loop is one that tends to slow down a process, whereas the positive feedback loop tends to accelerate it. The mirror neurons are part of a social feedback system, when an observed action is "mirrored" by the brain—like a self-performed action. Normal tissue integrity is preserved by feedback interactions between diverse cell types mediated by adhesion molecules and secreted molecules that act as mediators; failure of key feedback mechanisms in cancer disrupts tissue function. In an injured or infected tissue, inflammatory mediators elicit feedback responses in cells, which alter gene expression, and change the groups of molecules expressed and secreted, including molecules that induce diverse cells to cooperate and restore tissue structure and function. This type of feedback is important because it enables coordination of immune responses and recovery from infections and injuries. During cancer, key elements of this feedback fail. This disrupts tissue function and immunity. Mechanisms of feedback were first elucidated in bacteria, where a nutrient elicits changes in some of their metabolic functions. Feedback is also central to the operations of genes and gene regulatory networks. Repressor (see Lac repressor) and activator proteins are used to create genetic operons, which were identified by François Jacob and Jacques Monod in 1961 as feedback loops. These feedback loops may be positive (as in the case of the coupling between a sugar molecule and the proteins that import sugar into a bacterial cell), or negative (as is often the case in metabolic consumption). On a larger scale, feedback can have a stabilizing effect on animal populations even when profoundly affected by external changes, although time lags in feedback response can give rise to predator-prey cycles. In zymology, feedback serves as regulation of activity of an enzyme by its direct or downstream in the metabolic pathway (see Allosteric regulation). The hypothalamic–pituitary–adrenal axis is largely controlled by positive and negative feedback, much of which is still unknown. In psychology, the body receives a stimulus from the environment or internally that causes the release of hormones. Release of hormones then may cause more of those hormones to be released, causing a positive feedback loop. This cycle is also found in certain behaviour. For example, "shame loops" occur in people who blush easily. When they realize that they are blushing, they become even more embarrassed, which leads to further blushing, and so on. Climate science The climate system is characterized by strong positive and negative feedback loops between processes that affect the state of the atmosphere, ocean, and land. A simple example is the ice–albedo positive feedback loop whereby melting snow exposes more dark ground (of lower albedo), which in turn absorbs heat and causes more snow to melt. Control theory Feedback is extensively used in control theory, using a variety of methods including state space (controls), full state feedback, and so forth. In the context of control theory, "feedback" is traditionally assumed to specify "negative feedback". The most common general-purpose controller using a control-loop feedback mechanism is a proportional-integral-derivative (PID) controller. Heuristically, the terms of a PID controller can be interpreted as corresponding to time: the proportional term depends on the present error, the integral term on the accumulation of past errors, and the derivative term is a prediction of future error, based on current rate of change. Education For feedback in the educational context, see corrective feedback. Mechanical engineering In ancient times, the float valve was used to regulate the flow of water in Greek and Roman water clocks; similar float valves are used to regulate fuel in a carburettor and also used to regulate tank water level in the flush toilet. The Dutch inventor Cornelius Drebbel (1572-1633) built thermostats (c1620) to control the temperature of chicken incubators and chemical furnaces. In 1745, the windmill was improved by blacksmith Edmund Lee, who added a fantail to keep the face of the windmill pointing into the wind. In 1787, Tom Mead regulated the rotation speed of a windmill by using a centrifugal pendulum to adjust the distance between the bedstone and the runner stone (i.e., to adjust the load). The use of the centrifugal governor by James Watt in 1788 to regulate the speed of his steam engine was one factor leading to the Industrial Revolution. Steam engines also use float valves and pressure release valves as mechanical regulation devices. A mathematical analysis of Watt's governor was done by James Clerk Maxwell in 1868. The Great Eastern was one of the largest steamships of its time and employed a steam powered rudder with feedback mechanism designed in 1866 by John McFarlane Gray. Joseph Farcot coined the word servo in 1873 to describe steam-powered steering systems. Hydraulic servos were later used to position guns. Elmer Ambrose Sperry of the Sperry Corporation designed the first autopilot in 1912. Nicolas Minorsky published a theoretical analysis of automatic ship steering in 1922 and described the PID controller. Internal combustion engines of the late 20th century employed mechanical feedback mechanisms such as the vacuum timing advance but mechanical feedback was replaced by electronic engine management systems once small, robust and powerful single-chip microcontrollers became
also central to the operations of genes and gene regulatory networks. Repressor (see Lac repressor) and activator proteins are used to create genetic operons, which were identified by François Jacob and Jacques Monod in 1961 as feedback loops. These feedback loops may be positive (as in the case of the coupling between a sugar molecule and the proteins that import sugar into a bacterial cell), or negative (as is often the case in metabolic consumption). On a larger scale, feedback can have a stabilizing effect on animal populations even when profoundly affected by external changes, although time lags in feedback response can give rise to predator-prey cycles. In zymology, feedback serves as regulation of activity of an enzyme by its direct or downstream in the metabolic pathway (see Allosteric regulation). The hypothalamic–pituitary–adrenal axis is largely controlled by positive and negative feedback, much of which is still unknown. In psychology, the body receives a stimulus from the environment or internally that causes the release of hormones. Release of hormones then may cause more of those hormones to be released, causing a positive feedback loop. This cycle is also found in certain behaviour. For example, "shame loops" occur in people who blush easily. When they realize that they are blushing, they become even more embarrassed, which leads to further blushing, and so on. Climate science The climate system is characterized by strong positive and negative feedback loops between processes that affect the state of the atmosphere, ocean, and land. A simple example is the ice–albedo positive feedback loop whereby melting snow exposes more dark ground (of lower albedo), which in turn absorbs heat and causes more snow to melt. Control theory Feedback is extensively used in control theory, using a variety of methods including state space (controls), full state feedback, and so forth. In the context of control theory, "feedback" is traditionally assumed to specify "negative feedback". The most common general-purpose controller using a control-loop feedback mechanism is a proportional-integral-derivative (PID) controller. Heuristically, the terms of a PID controller can be interpreted as corresponding to time: the proportional term depends on the present error, the integral term on the accumulation of past errors, and the derivative term is a prediction of future error, based on current rate of change. Education For feedback in the educational context, see corrective feedback. Mechanical engineering In ancient times, the float valve was used to regulate the flow of water in Greek and Roman water clocks; similar float valves are used to regulate fuel in a carburettor and also used to regulate tank water level in the flush toilet. The Dutch inventor Cornelius Drebbel (1572-1633) built thermostats (c1620) to control the temperature of chicken incubators and chemical furnaces. In 1745, the windmill was improved by blacksmith Edmund Lee, who added a fantail to keep the face of the windmill pointing into the wind. In 1787, Tom Mead regulated the rotation speed of a windmill by using a centrifugal pendulum to adjust the distance between the bedstone and the runner stone (i.e., to adjust the load). The use of the centrifugal governor by James Watt in 1788 to regulate the speed of his steam engine was one factor leading to the Industrial Revolution. Steam engines also use float valves and pressure release valves as mechanical regulation devices. A mathematical analysis of Watt's governor was done by James Clerk Maxwell in 1868. The Great Eastern was one of the largest steamships of its time and employed a steam powered rudder with feedback mechanism designed in 1866 by John McFarlane Gray. Joseph Farcot coined the word servo in 1873 to describe steam-powered steering systems. Hydraulic servos were later used to position guns. Elmer Ambrose Sperry of the Sperry Corporation designed the first autopilot in 1912. Nicolas Minorsky published a theoretical analysis of automatic ship steering in 1922 and described the PID controller. Internal combustion engines of the late 20th century employed mechanical feedback mechanisms such as the vacuum timing advance but mechanical feedback was replaced by electronic engine management systems once small, robust and powerful single-chip microcontrollers became affordable. Electronic engineering The use of feedback is widespread in the design of electronic components such as amplifiers, oscillators, and stateful logic circuit elements such as flip-flops and counters. Electronic feedback systems are also very commonly used to control mechanical, thermal and other physical processes. If the signal is inverted on its way round the control loop, the system is said to have negative feedback; otherwise, the feedback is said to be positive. Negative feedback is often deliberately introduced to increase the stability and accuracy of a system by correcting or reducing the influence of unwanted changes. This scheme can fail if the input changes faster than the system can respond to it. When this happens, the lag in arrival of the correcting signal can result in over-correction, causing the output to oscillate or "hunt". While often an unwanted consequence of system behaviour, this effect is used deliberately in electronic oscillators. Harry Nyquist at Bell Labs derived the Nyquist stability criterion for determining the stability of feedback systems. An easier method, but less general, is to use Bode plots developed by Hendrik Bode to determine the gain margin and phase margin. Design to ensure stability often involves frequency compensation to control the location of the poles of the amplifier. Electronic feedback loops are used to control the output of electronic devices, such as amplifiers. A feedback loop is created when all or some portion of the output is fed back to the input. A device is said to be operating open loop if no output feedback is being employed and closed loop if feedback is being used. When two or more amplifiers are cross-coupled using positive feedback, complex behaviors can be created. These multivibrators are widely used and include: astable circuits, which act as oscillators monostable circuits, which can be pushed into a state, and will return to the stable state after some time bistable circuits, which have two stable states that the circuit can be switched between Negative feedback A Negative feedback occurs when the fed-back output signal has a relative phase of 180° with respect to the input signal (upside down). This situation is sometimes referred to as being out of phase, but that term also is used to indicate other phase separations, as in "90° out of phase". Negative feedback can be used to correct output errors or to desensitize a system to unwanted fluctuations. In feedback amplifiers, this correction is generally for waveform distortion reduction or to establish a specified gain level. A general expression for the gain of a negative feedback amplifier is the asymptotic gain model. Positive feedback Positive feedback occurs when the fed-back signal is in phase with the input signal. Under certain gain conditions, positive feedback reinforces the input signal to the point where the output of the device oscillates between its maximum and minimum possible states. Positive feedback may also introduce hysteresis into a circuit. This can cause the circuit to ignore small signals and respond only to large ones. It is sometimes used to eliminate noise from a digital signal. Under some circumstances, positive feedback may cause a device to latch, i.e., to reach a condition in which the output is locked to its maximum or minimum state. This fact is very widely used in digital electronics to make bistable circuits for volatile storage of information. The loud squeals that sometimes occurs in audio systems, PA systems, and rock music are known as audio feedback. If a microphone is in front of a loudspeaker that it is connected to, sound that the microphone picks up comes out of the speaker, and is picked up by the microphone and re-amplified. If the loop gain is sufficient, howling or squealing at the maximum power of the amplifier is possible. Oscillator An electronic oscillator is an electronic circuit that produces a periodic, oscillating electronic signal, often a sine wave or a square wave. Oscillators convert direct current (DC) from a power supply to an alternating current signal. They are widely used in many electronic devices. Common examples of signals generated by oscillators include signals broadcast by radio and television transmitters, clock signals that regulate computers and quartz clocks, and the sounds produced by electronic beepers and video games. Oscillators are often characterized by the frequency of their output signal: A low-frequency oscillator (LFO) is an electronic oscillator that generates a frequency below ≈20 Hz. This term is typically used in the field of audio synthesizers, to distinguish it from an audio frequency oscillator. An audio oscillator produces frequencies in the audio range, about 16 Hz to 20 kHz. An RF oscillator produces signals in the radio frequency (RF) range of about 100 kHz to 100 GHz. Oscillators designed to produce a high-power AC output from a DC supply are usually called inverters. There are two main types of electronic oscillator: the linear or harmonic oscillator and the nonlinear or relaxation oscillator. Latches and flip-flops A latch or a flip-flop is a circuit that has two stable states and can be used to store state information. They typically constructed using feedback that crosses over between two arms of the circuit, to provide the circuit with a state. The circuit can be made to change state by signals applied to one or more control inputs and will have one or two outputs. It is the basic storage element in sequential logic. Latches and flip-flops are fundamental building blocks of digital electronics systems used in computers, communications, and many other types of systems. Latches and flip-flops are used as data storage elements. Such data storage can be used for storage of state, and such a circuit is described as sequential logic. When used in a finite-state machine, the output and next state depend not only on its current input, but also on its current state (and hence, previous inputs). It can also be used for counting of pulses, and for synchronizing variably-timed input signals to some reference timing signal. Flip-flops can be either simple (transparent or opaque) or clocked (synchronous or edge-triggered). Although the term flip-flop has historically referred generically to both simple and clocked circuits, in modern usage it is common to reserve the term flip-flop exclusively for discussing clocked circuits; the simple ones are commonly called latches. Using this terminology, a latch is level-sensitive, whereas a flip-flop is edge-sensitive. That is, when a latch is enabled it becomes transparent, while a flip flop's output
certain kanji or symbols which have a gairaigo reading; the word "centimeter" is generally written as "cm" (with two half-width characters, so occupying one space) and has the seven-kana reading (senchimētoru) (it can also be written as the kanji , though this is very rare); another common example is "%" (the percent sign), which has the five kana reading (pāsento). These cause severe spacing problems due to length and these words being used as units (hence closely associated with the preceding figure). When it is necessary to distinguish between native Japanese kun'yomi pronunciations and Chinese-derived on'yomi pronunciations, for example in kanji dictionaries, the Japanese pronunciations are written in hiragana, and the Chinese pronunciations are written in katakana. However, this distinction is really only important in dictionaries and other reference works. In ordinary prose, the script chosen will usually be hiragana. The one general exception to this is modern Chinese place names, personal names, and (occasionally) food names—these will often be written with kanji, and katakana used for the furigana; in more casual writing these are simply written in katakana, as borrowed words. Occasionally this style is also used for loanwords from other languages (especially English). For example, the kanji (literally "one horn beast") might be glossed with katakana , yunikōn, to show the pronunciation of the loanword "unicorn", which is unrelated to the normal reading of the kanji. Generally, though, such loanwords are just written in straight katakana. The distinction between regular kana and the smaller character forms (yōon and sokuon), which are used in regular orthography to mark such things as gemination and palatalization, is often not made in furigana: for example, the usual hiragana spelling of the word (kyakka) is , but in furigana it might be written . This was especially common in old-fashioned movable type printing when smaller fonts were not available. Nowadays, with computer-based printing systems, this occurs less frequently. Alignment rules in word processing or typesetting Various word processing or typesetting software programs, such as Microsoft Word, Adobe InDesign, Adobe InCopy, etc. have features for adding ruby text, especially Japanese furigana. Among formatting features are different rules for aligning the kana over or to the right of the base text, usually either when the base text string is longer than the furigana string or vice versa. Extra spaces may be needed depending on the size of the shorter string (either the ruby string or the base string) relatively to the longer one. Centered, left/top or right/bottom: No spaces are added in between the characters. The shorter string is aligned to the center (中付きルビ nakatsuki rubi), the left/top (肩付きルビ katatsuki rubi) or the right/bottom of the longer string. 1-2-1 (JIS): Spaces are added at the start of and the end of the shorter string, and in between its component characters, so that the spaces in between are twice as wide or tall as the spaces at the start and at the end. Space width or height is calculated based on the width or height of the square bounding box of a glyph (Japanese typefaces are generally monospaced). The strings are still, in essence, aligned to the center of each other, rather than to the left/top or right/bottom. 0-1-0: Equal spaces are added, similarly to the 1-2-1 rule, in between the component characters of the shorter string, but not its start or end. Usage Furigana are most commonly used in works for children, who may not have sufficiently advanced reading skills to recognize the kanji, but can understand the word when written phonetically in hiragana. Because children learn hiragana before katakana, in books for very young children, there are hiragana furigana next to the katakana characters. It is common to use furigana on all kanji characters in works for young children. This is called in Japanese. Numeric characters used for counting (e.g. ni-hon "two long things"; futatsume "second"; dai-ni kan "book 2"; ni-pēji "page 2"; etc.) are usually not tagged with furigana. Exceptions include a few cases such as 一人/1人 hitori "one person" and 二人/2人 futari "two people", which may be tagged with separate kana for each character (/), or non-separated kana for the whole word (/), depending on the style of the publisher in question; or characters for numerals greater than 1,000 (千), such as 万 (10,000), 億 (100,000,000), etc. Numeric words in established compounds (e.g. ippo "step"; hitome "sight; attention"), however, are generally tagged with furigana. Many children's, shōnen and shōjo manga use furigana (again however, rarely on numerals). Shōnen and shōjo manga tend to have furigana for all non-numeric characters, while some manga (such as early volumes of Doraemon and other manga published by Shogakukan), may also ignore furigana on elementary-grade kanji or easy words. Seinen and josei manga ignores furigana most of the time, even on the names of the characters if they're common names, although some publishers may still routinely use furigana for the first mentions of important characters' names in a volume or chapter. There are also books with a phonetic guide (mainly in hiragana but sometimes in rōmaji) for Japanese learners, which may be bilingual or Japanese only. These are popular with foreigners wishing to master Japanese faster and enjoy reading Japanese short stories, novels or articles. Due to the small type used for furigana, for maximum readability, some manga publishers may use regular kana instead of small kana. For example, はっしん hasshin may be spelled はつしん *hatsushin instead. Some websites and tools exist which provide a phonetic guide for Japanese web pages (in hiragana, rōmaji or kiriji); these are popular with both Japanese children and foreign Japanese learners. In works aimed at adult Japanese speakers, furigana may be used on a word written in uncommon kanji; in the mass media, they are generally used on words containing non-Jōyō kanji. Furigana commonly appear alongside kanji names and their romanizations on signs for railway stations, even if the pronunciation of the kanji is commonly known. Furigana also appear often on maps to show the pronunciation of unusual place names. Before the war, youths might arguably have been almost illiterate if not for furigana. Names Japanese names are usually written in kanji. Because there are many possible readings for kanji names, including special name-only readings called nanori, furigana are often used to give the readings of names. On Japanese official forms, where the name is to be written, there is always an adjacent column for the name to be written in furigana. Furigana may also be used for foreign names written in kanji. Chinese and Korean names are the most common examples: Chinese names are usually pronounced with Japanese readings and the pronunciation written in hiragana, while Korean names are usually pronounced with Korean readings and the pronunciation written in katakana. Language learning Kanji and kanji compounds are often presented with furigana in Japanese-language textbooks for non-native speakers. Furigana are also often used in foreign-language textbooks for Japanese learners to indicate pronunciation. The words are written in the original foreign script, such as hangul for Korean, and furigana is used to indicate the pronunciation. According to Ministry of Education guidelines, and the opinions of educators, the use of Japanese furigana should be avoided in English teaching due to the differences in pronunciation between English and Japanese. For instance, the word "birthdate" might be glossed in furigana as (bāsudeito), which corresponds to an imperfect pronunciation. Punning and double meaning Some writers use furigana to represent slang pronunciations, particularly those that would be difficult to understand
or tall as the spaces at the start and at the end. Space width or height is calculated based on the width or height of the square bounding box of a glyph (Japanese typefaces are generally monospaced). The strings are still, in essence, aligned to the center of each other, rather than to the left/top or right/bottom. 0-1-0: Equal spaces are added, similarly to the 1-2-1 rule, in between the component characters of the shorter string, but not its start or end. Usage Furigana are most commonly used in works for children, who may not have sufficiently advanced reading skills to recognize the kanji, but can understand the word when written phonetically in hiragana. Because children learn hiragana before katakana, in books for very young children, there are hiragana furigana next to the katakana characters. It is common to use furigana on all kanji characters in works for young children. This is called in Japanese. Numeric characters used for counting (e.g. ni-hon "two long things"; futatsume "second"; dai-ni kan "book 2"; ni-pēji "page 2"; etc.) are usually not tagged with furigana. Exceptions include a few cases such as 一人/1人 hitori "one person" and 二人/2人 futari "two people", which may be tagged with separate kana for each character (/), or non-separated kana for the whole word (/), depending on the style of the publisher in question; or characters for numerals greater than 1,000 (千), such as 万 (10,000), 億 (100,000,000), etc. Numeric words in established compounds (e.g. ippo "step"; hitome "sight; attention"), however, are generally tagged with furigana. Many children's, shōnen and shōjo manga use furigana (again however, rarely on numerals). Shōnen and shōjo manga tend to have furigana for all non-numeric characters, while some manga (such as early volumes of Doraemon and other manga published by Shogakukan), may also ignore furigana on elementary-grade kanji or easy words. Seinen and josei manga ignores furigana most of the time, even on the names of the characters if they're common names, although some publishers may still routinely use furigana for the first mentions of important characters' names in a volume or chapter. There are also books with a phonetic guide (mainly in hiragana but sometimes in rōmaji) for Japanese learners, which may be bilingual or Japanese only. These are popular with foreigners wishing to master Japanese faster and enjoy reading Japanese short stories, novels or articles. Due to the small type used for furigana, for maximum readability, some manga publishers may use regular kana instead of small kana. For example, はっしん hasshin may be spelled はつしん *hatsushin instead. Some websites and tools exist which provide a phonetic guide for Japanese web pages (in hiragana, rōmaji or kiriji); these are popular with both Japanese children and foreign Japanese learners. In works aimed at adult Japanese speakers, furigana may be used on a word written in uncommon kanji; in the mass media, they are generally used on words containing non-Jōyō kanji. Furigana commonly appear alongside kanji names and their romanizations on signs for railway stations, even if the pronunciation of the kanji is commonly known. Furigana also appear often on maps to show the pronunciation of unusual place names. Before the war, youths might arguably have been almost illiterate if not for furigana. Names Japanese names are usually written in kanji. Because there are many possible readings for kanji names, including special name-only readings called nanori, furigana are often used to give the readings of names. On Japanese official forms, where the name is to be written, there is always an adjacent column for the name to be written in furigana. Furigana may also be used for foreign names written in kanji. Chinese and Korean names are the most common examples: Chinese names are usually pronounced with Japanese readings and the pronunciation written in hiragana, while Korean names are usually pronounced with Korean readings and the pronunciation written in katakana. Language learning Kanji and kanji compounds are often presented with furigana in Japanese-language textbooks for non-native speakers. Furigana are also often used in foreign-language textbooks for Japanese learners to indicate pronunciation. The words are written in the original foreign script, such as hangul for Korean, and furigana is used to indicate the pronunciation. According to Ministry of Education guidelines, and the opinions of educators, the use of Japanese furigana should be avoided in English teaching due to the differences in pronunciation between English and Japanese. For instance, the word "birthdate" might be glossed in furigana as (bāsudeito), which corresponds to an imperfect pronunciation. Punning and double meaning Some writers use furigana to represent slang pronunciations, particularly those that would be difficult to understand without the kanji to provide their meaning. Another use is to write the kanji for something which had been previously referenced, but write furigana for () or (), meaning "that". This means that the actual word used was "that", but the kanji clarify for the reader what "that" refers to. Another way to use it is to tag () onto words or names for places, to convey something along the line of, for example, "here (at this hospital)" () or "here (in LA)" (). Furigana unrelated to the kanji they are assigned to are quite often used to convey certain effects, rather than to denote a phonetic guide, especially in manga, anime, and games both video and tabletop. This usage is known as gikun (see also Kanji#Special readings). The specific types of effects vary: furigana could be used to visually reinforce complex ideas without having to use long expressions; to annotate strange, foreign, rarely seen text; to use more artistic or more explanatory spellings for regular words (see Kanji#Gikun); or simply for shorthand for base text abbreviation, thanks to the small type of furigana. For example, the word "nightmare" may be assigned with shinjitsu "truth" rather than its true reading, akumu, to convey the meaning of "nightmarish truth". Some authors may even use furigana that means the opposite of what the base text does to reinforce an effect, such as the complicated relationship between characters. For example, shin'yū "close friend" may be tagged with raibaru "rival", to mean "you're my rival, but also my friend"; or conversely, kōtekishu "eternal rival" may be tagged with tomo "friend". Some manga make use of the furigana renditions of foreign words (especially obscure ones) as the intended reading of a term, and the more familiar kanji for the meaning of such a term. For example, may be assigned with burakku majikku, the rendition of the English "black magic", to convey a foreign, exotic feel; with sutēshon "station"; with hanīmūn "honeymoon". This is sometimes done conversely, for example, by using kissu "kiss", the more familiar term, as furigana to convey meaning, and bēze "", the exotic term, as base text. For shorthand purposes, abbreviations such as may be used to make the regular kana spelling that is too long smaller type. In karaoke it is extremely common for furigana to be placed on the song lyrics. The song lyrics are often written in kanji pronounced quite differently from the furigana. The furigana version is used for pronunciation. Also, because the kanji represent meaning while the furigana represent sound, one
He was present at the siege of Belgrade which occurred during the Austro-Turkish War. After the death of Joseph II in 1790, Francis' father became Emperor. He had an early taste of power while acting as Leopold's deputy in Vienna while the incoming Emperor traversed the Empire attempting to win back those alienated by his brother's policies. The strain told on Leopold and by the winter of 1791, he became ill. He gradually worsened throughout early 1792; on the afternoon of 1 March Leopold died, at the relatively young age of 44. Francis, just past his 24th birthday, was now Emperor, much sooner than he had expected. Emperor As the head of the Holy Roman Empire and the ruler of the vast multi-ethnic Habsburg hereditary lands, Francis felt threatened by the French revolutionaries and later Napoleon's expansionism as well as their social and political reforms which were being exported throughout Europe in the wake of the conquering French armies. Francis had a fraught relationship with France. His aunt Marie Antoinette, the wife of Louis XVI and Queen consort of France, was guillotined by the revolutionaries in 1793, at the beginning of his reign, although, on the whole, he was indifferent to her fate. Later, he led the Holy Roman Empire into the French Revolutionary Wars. He briefly commanded the Allied forces during the Flanders Campaign of 1794 before handing over command to his brother Archduke Charles. He was later defeated by Napoleon. By the Treaty of Campo Formio, he ceded the left bank of the Rhine to France in exchange for Venice and Dalmatia. He again fought against France during the War of the Second Coalition. On 11 August 1804, in response to Napoleon crowning himself as emperor of the French earlier that year, he announced that he would henceforth assume the title of hereditary emperor of Austria as Francis I, a move that technically was illegal in terms of imperial law. Yet Napoleon had agreed beforehand and therefore it happened. During the War of the Third Coalition, the Austrian forces met a crushing defeat at Austerlitz, and Francis had to agree to the Treaty of Pressburg, which greatly weakened Austria and brought about the final collapse of the Holy Roman Empire. In July 1806, under massive pressure from France, Bavaria and fifteen other German states ratified the statutes founding the Confederation of the Rhine, with Napoleon designated Protector, and they announced to the Imperial Diet their intention to leave the Empire with immediate effect. Then, on 22 July, Napoleon issued an ultimatum to Francis demanding that he abdicate as Holy Roman Emperor by 10 August. Five days later, Francis bowed to the inevitable and, without mentioning the ultimatum, affirmed that since the Peace of Pressburg he had tried his best to fulfil his duties as emperor but that circumstances had convinced him that he could no longer rule according to his oath of office, the formation of the Confederation of the Rhine making that impossible. He added that "we hereby decree that we regard the bond which until now tied us to the states of the Empire as dissolved" in effect dissolving the empire. At the same time he declared the complete and formal withdrawal of his hereditary lands from imperial jurisdiction. After that date, he reigned as Francis I, Emperor of Austria. In 1809, Francis attacked France again, hoping to take advantage of the Peninsular War embroiling Napoleon in Spain. He was again defeated, and this time forced to ally himself with Napoleon, ceding territory to the Empire, joining the Continental System, and wedding his daughter Marie-Louise to the Emperor. The Napoleonic wars drastically weakened Austria, making it entirely landlocked and threatened its preeminence among the states of Germany, a position that it would eventually cede to the Kingdom of Prussia. In 1813, for the fifth and final time, Austria turned against France and joined Great Britain, Russia, Prussia and Sweden in their war against Napoleon. Austria played a major role in the final defeat of France—in recognition of this, Francis, represented by Clemens von Metternich, presided over the Congress of Vienna, helping to form the Concert of Europe and the Holy Alliance, ushering in an era of conservatism in Europe. The German Confederation, a loose association of Central European states was created by the Congress of Vienna in 1815 to organize the surviving states of the Holy Roman Empire. The Congress was a personal triumph for Francis, who hosted the assorted dignitaries in comfort, though Francis undermined his allies Tsar Alexander and Frederick William III of Prussia by negotiating a secret treaty with the restored French king Louis XVIII. Domestic policy The violent events of the French Revolution impressed themselves deeply into the mind of Francis (as well as all other European monarchs), and he came to distrust radicalism in any form. In 1794, a "Jacobin" conspiracy was discovered in the Austrian and Hungarian armies. The leaders were put on trial, but the verdicts only skirted the perimeter of the conspiracy. Francis' brother Alexander Leopold (at that time Palatine of Hungary) wrote to the Emperor admitting "Although we have caught a lot of the culprits, we have not really got to the bottom of this business yet." Nonetheless, two officers heavily implicated in the conspiracy were hanged and gibbeted, while numerous others were sentenced to imprisonment (many of whom died from the conditions). Francis was from his experiences suspicious and set up an extensive network of police spies and censors to monitor dissent (in this he was following his father's lead, as
Austria, Maximilian I of Mexico, Maria II of Portugal and Pedro II of Brazil. Early life Francis was a son of Emperor Leopold II (1747–1792) and his wife Maria Luisa of Spain (1745–1792), daughter of Charles III of Spain. Francis was born in Florence, the capital of Tuscany, where his father reigned as Grand Duke from 1765 to 1790. Though he had a happy childhood surrounded by his many siblings, his family knew Francis was likely to be a future Emperor (his uncle Joseph had no surviving issue from either of his two marriages), and so in 1784 the young Archduke was sent to the Imperial Court in Vienna to educate and prepare him for his future role. Emperor Joseph II himself took charge of Francis' development. His disciplinarian regime was a stark contrast to the indulgent Florentine Court of Leopold. The Emperor wrote that Francis was "stunted in growth", "backward in bodily dexterity and deportment", and "neither more nor less than a spoiled mother's child." Joseph concluded that "the manner in which he was treated for upwards of sixteen years could not but have confirmed him in the delusion that the preservation of his own person was the only thing of importance." Joseph's martinet method of improving the young Francis was "fear and unpleasantness." The young Archduke was isolated, the reasoning being that this would make him more self-sufficient as it was felt by Joseph that Francis "failed to lead himself, to do his own thinking." Nonetheless, Francis greatly admired his uncle, if rather feared him. To complete his training, Francis was sent to join an army regiment in Hungary and he settled easily into the routine of military life. He was present at the siege of Belgrade which occurred during the Austro-Turkish War. After the death of Joseph II in 1790, Francis' father became Emperor. He had an early taste of power while acting as Leopold's deputy in Vienna while the incoming Emperor traversed the Empire attempting to win back those alienated by his brother's policies. The strain told on Leopold and by the winter of 1791, he became ill. He gradually worsened throughout early 1792; on the afternoon of 1 March Leopold died, at the relatively young age of 44. Francis, just past his 24th birthday, was now Emperor, much sooner than he had expected. Emperor As the head of the Holy Roman Empire and the ruler of the vast multi-ethnic Habsburg hereditary lands, Francis felt threatened by the French revolutionaries and later Napoleon's expansionism as well as their social and political reforms which were being exported throughout Europe in the wake of the conquering French armies. Francis had a fraught relationship with France. His aunt Marie Antoinette, the wife of Louis XVI and Queen consort of France, was guillotined by the revolutionaries in 1793, at the beginning of his reign, although, on the whole, he was indifferent to her fate. Later, he led the Holy Roman Empire into the French Revolutionary Wars. He briefly commanded the Allied forces during the Flanders Campaign of 1794 before handing over command to his brother Archduke Charles. He was later defeated by Napoleon. By the Treaty of Campo Formio, he ceded the left bank of the Rhine to France in exchange for Venice and Dalmatia. He again fought against France during the War of the Second Coalition. On 11 August 1804, in response to Napoleon crowning himself as emperor of the French earlier that year, he announced that he would henceforth assume the title of hereditary emperor of Austria as Francis I, a move that technically was illegal in terms of imperial law. Yet Napoleon had agreed beforehand and therefore it happened. During the War of the Third Coalition, the Austrian forces met a crushing defeat at Austerlitz, and Francis had to agree to the Treaty of Pressburg, which greatly weakened Austria and brought about the final collapse of the Holy Roman Empire. In July 1806, under massive pressure from France, Bavaria and fifteen other German states ratified the statutes founding the Confederation of the Rhine, with Napoleon designated Protector, and they announced to the Imperial Diet their intention to leave the Empire with immediate effect. Then, on 22 July, Napoleon issued an ultimatum to Francis demanding that he abdicate as Holy Roman Emperor by 10 August. Five days later, Francis bowed to the inevitable and, without mentioning the ultimatum, affirmed that since the Peace of Pressburg he had tried his best to fulfil his duties as emperor but that circumstances had convinced him that he could no longer rule according to his oath of office, the formation of the Confederation of the Rhine making that impossible. He added that "we hereby decree that we regard
of the Institute of Chemistry (1881–82) and of the Society of Chemical Industry (1883). He was also president of the Iron and Steel Institute in 1891 and was awarded the Bessemer Gold Medal in 1897 for his work on problems of steel manufacture. He was awarded the Telford Medal by the Institution of Civil Engineers in 1879. He was made a Commander of the Order of the Bath (CB) in 1877. and knighted on 20 April 1883 He took an important part in the work of the Inventions Exhibition (London) in 1885, and in 1887 became organizing secretary and first director of the Imperial Institute, a position he held till his death in 1902. He was Rede Lecturer and received an honorary doctorate from Cambridge University in 1888. He was upgraded Knight Commander of the Order of the Bath (KCB) on 3 February 1891, created a baronet, of Cadogan Place in the Parish of Chelsea in the County of London, on 25 May 1893 and made a Knight Grand Cross of the Royal Victorian Order (GCVO) on 8 March 1901. Abel died at his residence in Whitehall Court, London, on 6 September 1902, aged 75, and was buried in Nunhead Cemetery, London. The baronetcy became extinct on his death. Family Abel married twice; first to Sarah Blanch, daughter of James Blanch, of Bristol; secondly after his first wife's death to Giulietta de La Feuillade. He left no children. Books Handbook of Chemistry (with C. L. Bloxam) The Modern History of Gunpowder (1866) Gun-cotton (1866) On Explosive Agents (1872) Researches in Explosives (1875) Electricity applied to Explosive Purposes (1898) He also wrote several articles in the ninth edition of the Encyclopædia Britannica. Arms See also Internal ballistics References Attribution Further reading External links 1827 births 1902 deaths 19th-century British chemists Cordite Ballistics experts Fellows of the Royal Society Knights Commander of the
Gunpowder Mills, patented in 1865, then, the propellant cordite, patented in 1889. In electricity, Abel studied the construction of electrical fuses and other applications of electricity to warlike purposes. Leadership and honours He was elected a Fellow of the Royal Society in 1860 and received their Royal Medal in 1887. He was president of the Chemical Society (1875–77), of the Institution of Electrical Engineers (then the Society of Telegraph Engineers) (1877), of the Institute of Chemistry (1881–82) and of the Society of Chemical Industry (1883). He was also president of the Iron and Steel Institute in 1891 and was awarded the Bessemer Gold Medal in 1897 for his work on problems of steel manufacture. He was awarded the Telford Medal by the Institution of Civil Engineers in 1879. He was made a Commander of the Order of the Bath (CB) in 1877. and knighted on 20 April 1883 He took an important part in the work of the Inventions Exhibition (London) in 1885, and in 1887 became organizing secretary and first director of the Imperial Institute, a position he held till his death in 1902. He was Rede Lecturer and received an honorary doctorate from Cambridge University in 1888. He was upgraded Knight Commander of the Order of the Bath (KCB) on 3 February 1891, created a baronet, of Cadogan Place in the Parish of Chelsea in the County of London, on 25 May 1893 and made a Knight Grand Cross of the Royal Victorian Order (GCVO) on 8 March 1901. Abel died at his residence in Whitehall Court, London, on 6 September 1902, aged 75, and was buried in Nunhead Cemetery, London. The baronetcy became extinct on his death. Family Abel married twice; first to Sarah Blanch, daughter of James Blanch, of Bristol; secondly after his first wife's death to Giulietta de La Feuillade. He left no children. Books Handbook of Chemistry (with C. L. Bloxam) The Modern History of Gunpowder (1866) Gun-cotton (1866) On Explosive Agents (1872) Researches in Explosives (1875) Electricity applied to Explosive Purposes (1898) He also wrote several articles in the ninth edition of the Encyclopædia Britannica. Arms See also Internal ballistics References Attribution Further reading External links 1827 births 1902 deaths 19th-century British chemists Cordite Ballistics experts Fellows of the Royal
named "Fugazi" Club Fugazi, a theater in the North Beach District of San Francisco, California, the perennial venue of Beach
or damaged beyond repair. It may refer to: Fugazi, a post-hardcore punk band from Washington, D.C. Fugazi (EP), the debut EP by the band of the same name Fugazi
the fluorescent color appear brighter (more saturated) than it could possibly be by reflection alone. Rules There are several general rules that deal with fluorescence. Each of the following rules has exceptions but they are useful guidelines for understanding fluorescence (these rules do not necessarily apply to two-photon absorption). Kasha's rule Kasha's rule dictates that the quantum yield of luminescence is independent of the wavelength of exciting radiation. This occurs because excited molecules usually decay to the lowest vibrational level of the excited state before fluorescence emission takes place. The Kasha–Vavilov rule does not always apply and is violated severely in many simple molecules. A somewhat more reliable statement, although still with exceptions, would be that the fluorescence spectrum shows very little dependence on the wavelength of exciting radiation. Mirror image rule For many fluorophores the absorption spectrum is a mirror image of the emission spectrum. This is known as the mirror image rule and is related to the Franck–Condon principle which states that electronic transitions are vertical, that is energy changes without distance changing as can be represented with a vertical line in Jablonski diagram. This means the nucleus does not move and the vibration levels of the excited state resemble the vibration levels of the ground state. Stokes shift In general, emitted fluorescence light has a longer wavelength and lower energy than the absorbed light. This phenomenon, known as Stokes shift, is due to energy loss between the time a photon is absorbed and when a new one is emitted. The causes and magnitude of Stokes shift can be complex and are dependent on the fluorophore and its environment. However, there are some common causes. It is frequently due to non-radiative decay to the lowest vibrational energy level of the excited state. Another factor is that the emission of fluorescence frequently leaves a fluorophore in a higher vibrational level of the ground state. In nature There are many natural compounds that exhibit fluorescence, and they have a number of applications. Some deep-sea animals, such as the greeneye, have fluorescent structures. Compared to bioluminescence and biophosphorescence Fluorescence Fluorescence is the temporary absorption of electromagnetic wavelengths from the visible light spectrum by fluorescent molecules, and the subsequent emission of light at a lower energy level. When it occurs in a living organism, it is sometimes called biofluorescence. This causes the light that is emitted to be a different color than the light that is absorbed. Stimulating light excites an electron, raising energy to an unstable level. This instability is unfavorable, so the energized electron is returned to a stable state almost as immediately as it becomes unstable. This return to stability corresponds with the release of excess energy in the form of fluorescence light. This emission of light is only observable when the stimulant light is still providing light to the organism/object and is typically yellow, pink, orange, red, green, or purple. Fluorescence is often confused with the following forms of biotic light, bioluminescence and biophosphorescence. Pumpkin toadlets that live in the Brazilian Atlantic forest are fluorescent. Bioluminescence Bioluminescence differs from fluorescence in that it is the natural production of light by chemical reactions within an organism, whereas fluorescence is the absorption and reemission of light from the environment. Fireflies and anglerfish are two examples of bioluminescent organisms. To add to the potential confusion, some organisms are both bioluminescent and fluorescent, like the sea pansy Renilla reniformis, where bioluminescence serves as the light source for fluorescence. Phosphorescence Phosphorescence is similar to fluorescence in its requirement of light wavelengths as a provider of excitation energy. The difference here lies in the relative stability of the energized electron. Unlike with fluorescence, in phosphorescence the electron retains stability, emitting light that continues to "glow-in-the-dark" even after the stimulating light source has been removed. For example, glow-in-the-dark stickers are phosphorescent, but there are no truly biophosphorescent animals known. Mechanisms Epidermal chromatophores Pigment cells that exhibit fluorescence are called fluorescent chromatophores, and function somatically similar to regular chromatophores. These cells are dendritic, and contain pigments called fluorosomes. These pigments contain fluorescent proteins which are activated by K+ (potassium) ions, and it is their movement, aggregation, and dispersion within the fluorescent chromatophore that cause directed fluorescence patterning. Fluorescent cells are innervated the same as other chromatophores, like melanophores, pigment cells that contain melanin. Short term fluorescent patterning and signaling is controlled by the nervous system. Fluorescent chromatophores can be found in the skin (e.g. in fish) just below the epidermis, amongst other chromatophores. Epidermal fluorescent cells in fish also respond to hormonal stimuli by the α–MSH and MCH hormones much the same as melanophores. This suggests that fluorescent cells may have color changes throughout the day that coincide with their circadian rhythm. Fish may also be sensitive to cortisol induced stress responses to environmental stimuli, such as interaction with a predator or engaging in a mating ritual. Phylogenetics Evolutionary origins The incidence of fluorescence across the tree of life is widespread, and has been studied most extensively in cnidarians and fish. The phenomenon appears to have evolved multiple times in multiple taxa such as in the anguilliformes (eels), gobioidei (gobies and cardinalfishes), and tetradontiformes (triggerfishes), along with the other taxa discussed later in the article. Fluorescence is highly genotypically and phenotypically variable even within ecosystems, in regards to the wavelengths emitted, the patterns displayed, and the intensity of the fluorescence. Generally, the species relying upon camouflage exhibit the greatest diversity in fluorescence, likely because camouflage may be one of the uses of fluorescence. It is suspected by some scientists that GFPs and GFP-like proteins began as electron donors activated by light. These electrons were then used for reactions requiring light energy. Functions of fluorescent proteins, such as protection from the sun, conversion of light into different wavelengths, or for signaling are thought to have evolved secondarily. Adaptive functions Currently, relatively little is known about the functional significance of fluorescence and fluorescent proteins. However, it is suspected that fluorescence may serve important functions in signaling and communication, mating, lures, camouflage, UV protection and antioxidation, photoacclimation, dinoflagellate regulation, and in coral health. Aquatic Water absorbs light of long wavelengths, so less light from these wavelengths reflects back to reach the eye. Therefore, warm colors from the visual light spectrum appear less vibrant at increasing depths. Water scatters light of shorter wavelengths above violet, meaning cooler colors dominate the visual field in the photic zone. Light intensity decreases 10 fold with every 75 m of depth, so at depths of 75 m, light is 10% as intense as it is on the surface, and is only 1% as intense at 150 m as it is on the surface. Because the water filters out the wavelengths and intensity of water reaching certain depths, different proteins, because of the wavelengths and intensities of light they are capable of absorbing, are better suited to different depths. Theoretically, some fish eyes can detect light as deep as 1000 m. At these depths of the aphotic zone, the only sources of light are organisms themselves, giving off light through chemical reactions in a process called bioluminescence. Fluorescence is simply defined as the absorption of electromagnetic radiation at one wavelength and its reemission at another, lower energy wavelength. Thus any type of fluorescence depends on the presence of external sources of light. Biologically functional fluorescence is found in the photic zone, where there is not only enough light to cause fluorescence, but enough light for other organisms to detect it. The visual field in the photic zone is naturally blue, so colors of fluorescence can be detected as bright reds, oranges, yellows, and greens. Green is the most commonly found color in the marine spectrum, yellow the second most, orange the third, and red is the rarest. Fluorescence can occur in organisms in the aphotic zone as a byproduct of that same organism's bioluminescence. Some fluorescence in the aphotic zone is merely a byproduct of the organism's tissue biochemistry and does not have a functional purpose. However, some cases of functional and adaptive significance of fluorescence in the aphotic zone of the deep ocean is an active area of research. Photic zone Fish Bony fishes living in shallow water generally have good color vision due to their living in a colorful environment. Thus, in shallow-water fishes, red, orange, and green fluorescence most likely serves as a means of communication with conspecifics, especially given the great phenotypic variance of the phenomenon. Many fish that exhibit fluorescence, such as sharks, lizardfish, scorpionfish, wrasses, and flatfishes, also possess yellow intraocular filters. Yellow intraocular filters in the lenses and cornea of certain fishes function as long-pass filters. These filters enable the species that to visualize and potentially exploit fluorescence, in order to enhance visual contrast and patterns that are unseen to other fishes and predators that lack this visual specialization. Fish that possess the necessary yellow intraocular filters for visualizing fluorescence potentially exploit a light signal from members of it. Fluorescent patterning was especially prominent in cryptically patterned fishes possessing complex camouflage. Many of these lineages also possess yellow long-pass intraocular filters that could enable visualization of such patterns. Another adaptive use of fluorescence is to generate orange and red light from the ambient blue light of the photic zone to aid vision. Red light can only be seen across short distances due to attenuation of red light wavelengths by water. Many fish species that fluoresce are small, group-living, or benthic/aphotic, and have conspicuous patterning. This patterning is caused by fluorescent tissue and is visible to other members of the species, however the patterning is invisible at other visual spectra. These intraspecific fluorescent patterns also coincide with intra-species signaling. The patterns present in ocular rings to indicate directionality of an individual's gaze, and along fins to indicate directionality of an individual's movement. Current research suspects that this red fluorescence is used for private communication between members of the same species. Due to the prominence of blue light at ocean depths, red light and light of longer wavelengths are muddled, and many predatory reef fish have little to no sensitivity for light at these wavelengths. Fish such as the fairy wrasse that have
impurities such as iron or copper, to prevent quenching of possible fluorescence. Divalent manganese, in concentrations of up to several percent, is responsible for the red or orange fluorescence of calcite, the green fluorescence of willemite, the yellow fluorescence of esperite, and the orange fluorescence of wollastonite and clinohedrite. Hexavalent uranium, in the form of the uranyl cation (), fluoresces at all concentrations in a yellow green, and is the cause of fluorescence of minerals such as autunite or andersonite, and, at low concentration, is the cause of the fluorescence of such materials as some samples of hyalite opal. Trivalent chromium at low concentration is the source of the red fluorescence of ruby. Divalent europium is the source of the blue fluorescence, when seen in the mineral fluorite. Trivalent lanthanides such as terbium and dysprosium are the principal activators of the creamy yellow fluorescence exhibited by the yttrofluorite variety of the mineral fluorite, and contribute to the orange fluorescence of zircon. Powellite (calcium molybdate) and scheelite (calcium tungstate) fluoresce intrinsically in yellow and blue, respectively. When present together in solid solution, energy is transferred from the higher-energy tungsten to the lower-energy molybdenum, such that fairly low levels of molybdenum are sufficient to cause a yellow emission for scheelite, instead of blue. Low-iron sphalerite (zinc sulfide), fluoresces and phosphoresces in a range of colors, influenced by the presence of various trace impurities. Crude oil (petroleum) fluoresces in a range of colors, from dull-brown for heavy oils and tars through to bright-yellowish and bluish-white for very light oils and condensates. This phenomenon is used in oil exploration drilling to identify very small amounts of oil in drill cuttings and core samples. Humic acids and fulvic acids produced by the degradation of organic matter in soils (humus) may also fluoresce because of the presence of aromatic cycles in their complex molecular structures. Humic substances dissolved in groundwater can be detected and characterized by spectrofluorimetry. Organic liquids Organic solutions such anthracene or stilbene, dissolved in benzene or toluene, fluoresce with ultraviolet or gamma ray irradiation. The decay times of this fluorescence are on the order of nanoseconds, since the duration of the light depends on the lifetime of the excited states of the fluorescent material, in this case anthracene or stilbene. Scintillation is defined a flash of light produced in a transparent material by the passage of a particle (an electron, an alpha particle, an ion, or a high-energy photon). Stilbene and derivatives are used in scintillation counters to detect such particles. Stilbene is also one of the gain mediums used in dye lasers. Atmosphere Fluorescence is observed in the atmosphere when the air is under energetic electron bombardment. In cases such as the natural aurora, high-altitude nuclear explosions, and rocket-borne electron gun experiments, the molecules and ions formed have a fluorescent response to light. Common materials that fluoresce Vitamin B2 fluoresces yellow. Tonic water fluoresces blue due to the presence of quinine. Highlighter ink is often fluorescent due to the presence of pyranine. Banknotes, postage stamps and credit cards often have fluorescent security features. In novel technology In August 2020 researchers reported the creation of the brightest fluorescent solid optical materials so far by enabling the transfer of properties of highly fluorescent dyes via spatial and electronic isolation of the dyes by mixing cationic dyes with anion-binding cyanostar macrocycles. According to a co-author these materials may have applications in areas such as solar energy harvesting, bioimaging, and lasers. Applications Lighting The common fluorescent lamp relies on fluorescence. Inside the glass tube is a partial vacuum and a small amount of mercury. An electric discharge in the tube causes the mercury atoms to emit mostly ultraviolet light. The tube is lined with a coating of a fluorescent material, called the phosphor, which absorbs ultraviolet light and re-emits visible light. Fluorescent lighting is more energy-efficient than incandescent lighting elements. However, the uneven spectrum of traditional fluorescent lamps may cause certain colors to appear different from when illuminated by incandescent light or daylight. The mercury vapor emission spectrum is dominated by a short-wave UV line at 254 nm (which provides most of the energy to the phosphors), accompanied by visible light emission at 436 nm (blue), 546 nm (green) and 579 nm (yellow-orange). These three lines can be observed superimposed on the white continuum using a hand spectroscope, for light emitted by the usual white fluorescent tubes. These same visible lines, accompanied by the emission lines of trivalent europium and trivalent terbium, and further accompanied by the emission continuum of divalent europium in the blue region, comprise the more discontinuous light emission of the modern trichromatic phosphor systems used in many compact fluorescent lamp and traditional lamps where better color rendition is a goal. Fluorescent lights were first available to the public at the 1939 New York World's Fair. Improvements since then have largely been better phosphors, longer life, and more consistent internal discharge, and easier-to-use shapes (such as compact fluorescent lamps). Some high-intensity discharge (HID) lamps couple their even-greater electrical efficiency with phosphor enhancement for better color rendition. White light-emitting diodes (LEDs) became available in the mid-1990s as LED lamps, in which blue light emitted from the semiconductor strikes phosphors deposited on the tiny chip. The combination of the blue light that continues through the phosphor and the green to red fluorescence from the phosphors produces a net emission of white light. Glow sticks sometimes utilize fluorescent materials to absorb light from the chemiluminescent reaction and emit light of a different color. Analytical chemistry Many analytical procedures involve the use of a fluorometer, usually with a single exciting wavelength and single detection wavelength. Because of the sensitivity that the method affords, fluorescent molecule concentrations as low as 1 part per trillion can be measured. Fluorescence in several wavelengths can be detected by an array detector, to detect compounds from HPLC flow. Also, TLC plates can be visualized if the compounds or a coloring reagent is fluorescent. Fluorescence is most effective when there is a larger ratio of atoms at lower energy levels in a Boltzmann distribution. There is, then, a higher probability of excitement and release of photons by lower-energy atoms, making analysis more efficient. Spectroscopy Usually the setup of a fluorescence assay involves a light source, which may emit many different wavelengths of light. In general, a single wavelength is required for proper analysis, so, in order to selectively filter the light, it is passed through an excitation monochromator, and then that chosen wavelength is passed through the sample cell. After absorption and re-emission of the energy, many wavelengths may emerge due to Stokes shift and various electron transitions. To separate and analyze them, the fluorescent radiation is passed through an emission monochromator, and observed selectively by a detector. Biochemistry and medicine Fluorescence in the life sciences is used generally as a non-destructive way of tracking or analysis of biological molecules by means of the fluorescent emission at a specific frequency where there is no background from the excitation light, as relatively few cellular components are naturally fluorescent (called intrinsic or autofluorescence). In fact, a protein or other component can be "labelled" with an extrinsic fluorophore, a fluorescent dye that can be a small molecule, protein, or quantum dot, finding a large use in many biological applications. The quantification of a dye is done with a spectrofluorometer and finds additional applications in: Microscopy When scanning the fluorescence intensity across a plane one has fluorescence microscopy of tissues, cells, or subcellular structures, which is accomplished by labeling an antibody with a fluorophore and allowing the antibody to find its target antigen within the sample. Labelling multiple antibodies with different fluorophores allows visualization of multiple targets within a single image (multiple channels). DNA microarrays are a variant of this. Immunology: An antibody is first prepared by having a fluorescent chemical group attached, and the sites (e.g., on a microscopic specimen) where the antibody has bound can be seen, and even quantified, by the fluorescence. FLIM (Fluorescence Lifetime Imaging Microscopy) can be used to detect certain bio-molecular interactions that manifest themselves by influencing fluorescence lifetimes. Cell and molecular biology: detection of colocalization using fluorescence-labelled antibodies for selective detection of the antigens of interest using specialized software such as ImageJ. Other techniques FRET (Förster resonance energy transfer, also known as fluorescence resonance energy transfer) is used to study protein interactions, detect specific nucleic acid sequences and used as biosensors, while fluorescence lifetime (FLIM) can give an additional layer of information. Biotechnology: biosensors using fluorescence are being studied as possible Fluorescent glucose biosensors. Automated sequencing of DNA by the chain termination method; each of four different chain terminating bases has its own specific fluorescent tag. As the labelled DNA molecules are separated, the fluorescent label is excited by a UV source, and the identity of the base terminating the molecule is identified by the wavelength of the emitted light. FACS (fluorescence-activated cell sorting). One of several important cell sorting techniques used in the separation of different cell lines (especially those isolated from animal tissues). DNA detection: the compound ethidium bromide, in aqueous solution, has very little fluorescence, as it is quenched by water. Ethidium bromide's fluorescence is greatly enhanced after it binds to DNA, so this compound is very useful in visualising the location of DNA fragments in agarose gel electrophoresis. Intercalated ethidium is in a hydrophobic environment when it is between the base pairs of the DNA, protected from quenching by water which is excluded from the local environment of the intercalated ethidium. Ethidium bromide may be carcinogenic – an arguably safer alternative is the dye SYBR Green. FIGS (Fluorescence image-guided surgery) is a medical imaging technique that uses fluorescence to detect properly labeled structures during surgery. Intravascular fluorescence is a catheter-based medical imaging technique that uses fluorescence to detect high-risk features of atherosclerosis and unhealed vascular stent devices. Plaque autofluorescence has been used in a first-in-man study in coronary arteries in combination with optical coherence tomography. Molecular agents has been also used to detect specific features, such as stent fibrin accumulation and enzymatic activity related to artery inflammation. SAFI (species altered fluorescence imaging) an imaging technique in electrokinetics and microfluidics. It uses non-electromigrating dyes whose fluorescence is easily quenched by migrating chemical species of interest. The dye(s) are usually seeded everywhere in the flow and differential quenching of their fluorescence by analytes is directly observed. Fluorescence-based assays for screening toxic chemicals. The optical assays consist of a mixture of environmental-sensitive fluorescent dyes and human skin cells that generate fluorescence spectra patterns. This approach can reduce the need
additive and multiplicative functions are determined by their values on the powers of prime numbers. Proof The proof uses Euclid's lemma (Elements VII, 30): If a prime divides the product of two integers, then it must divide at least one of these integers. Existence It must be shown that every integer greater than is either prime or a product of primes. First, is prime. Then, by strong induction, assume this is true for all numbers greater than and less than . If is prime, there is nothing more to prove. Otherwise, there are integers and , where , and . By the induction hypothesis, and are products of primes. But then is a product of primes. Uniqueness Suppose, to the contrary, there is an integer that has two distinct prime factorizations. Let be the least such integer and write , where each and is prime. We see that divides , so divides some by Euclid's lemma. Without loss of generality, say divides . Since and are both prime, it follows that . Returning to our factorizations of , we may cancel these two factors to conclude that . We now have two distinct prime factorizations of some integer strictly smaller than , which contradicts the minimality of . Uniqueness without Euclid's lemma The fundamental theorem of arithmetic can also be proved without using Euclid's lemma. The proof that follows is inspired by Euclid's original version of the Euclidean algorithm. Assume that is the smallest positive integer which is the product of prime numbers in two different ways. Incidentally, this implies that , if it exists, must be a composite number greater than . Now, say Every must be distinct from every Otherwise, if say then there would exist some positive integer that is smaller than and has two distinct prime factorizations. One may also suppose that by exchanging the two factorizations, if needed. Setting and one has It follows that As the positive integers less than have been supposed to have a unique prime factorization, must occur in the factorization of either or . The latter case is impossible, as , being smaller than , must have a unique prime factorization, and differs from every The former case is also impossible, as, if is a divisor of it must be also a divisor of which is impossible as and are distinct primes. Therefore, there cannot exist a smallest integer with more than a single distinct prime factorization. Every positive integer must
of primes. But then is a product of primes. Uniqueness Suppose, to the contrary, there is an integer that has two distinct prime factorizations. Let be the least such integer and write , where each and is prime. We see that divides , so divides some by Euclid's lemma. Without loss of generality, say divides . Since and are both prime, it follows that . Returning to our factorizations of , we may cancel these two factors to conclude that . We now have two distinct prime factorizations of some integer strictly smaller than , which contradicts the minimality of . Uniqueness without Euclid's lemma The fundamental theorem of arithmetic can also be proved without using Euclid's lemma. The proof that follows is inspired by Euclid's original version of the Euclidean algorithm. Assume that is the smallest positive integer which is the product of prime numbers in two different ways. Incidentally, this implies that , if it exists, must be a composite number greater than . Now, say Every must be distinct from every Otherwise, if say then there would exist some positive integer that is smaller than and has two distinct prime factorizations. One may also suppose that by exchanging the two factorizations, if needed. Setting and one has It follows that As the positive integers less than have been supposed to have a unique prime factorization, must occur in the factorization of either or . The latter case is impossible, as , being smaller than , must have a unique prime factorization, and differs from every The former case is also impossible, as, if is a divisor of it must be also a divisor of which is impossible as and are distinct primes. Therefore, there cannot exist a smallest integer with more than a single distinct prime factorization. Every positive integer must either be a prime number itself, which would factor uniquely, or a composite that also factors uniquely into primes, or in the case of the integer , not factor into any prime. Generalizations The first generalization of the theorem is found in Gauss's second monograph (1832) on biquadratic reciprocity. This paper introduced what is now called the ring of Gaussian integers, the set of all complex numbers a + bi where a and b are integers. It is now denoted by He showed that this ring has the four units ±1 and ±i, that the non-zero, non-unit numbers fall into two classes, primes and composites, and that (except for order), the composites have unique factorization as a product of primes. Similarly, in 1844 while working on cubic reciprocity, Eisenstein introduced the ring , where is a cube root of unity.
the strum and the tremolo, among others. One of the first touches that is considered flamenco, such as the "rondeña", was the first composition recorded for solo guitar, by Julián Arcas (María, Almería, 1832 – Antequera, Málaga, 1882) in Barcelona in 1860. The strum can be performed with 5, 4 or 3 fingers, the latter invented by Sabicas. The use of the thumb is also characteristic of flamenco playing. Guitarists rest their thumb on the guitar's soundboard and their index and middle fingers on the string above the one they are playing, thus achieving greater power and sound than the classical guitarist. The middle finger is also placed on the pickguard of the guitar for more precision and strength when plucking the string. Likewise, the use of the pickguard as an element of percussion gives great strength to flamenco guitar playing. The melodic or flourishing phrase that is inserted between the chord sequences intended to accompany the couplet is called "falseta". The accompaniment and solo playing of flamenco guitarists is based on both the modal harmonic system and the tonal system, although the most frequent is a combination of both. Some flamenco songs are performed "a palo seco" (a cappella), without guitar accompaniment. Cante (song) According to the Royal Spanish Academy, "cante" is called the "action or effect of singing any Andalusian singing", defining "flamenco singing" as "agitated Andalusian singing" and cante jondo as "the most genuine song. Andalusian, of deep feeling ". The interpreter of flamenco singing is called cantaor instead of singer, with the loss of the intervocalic characteristic of the Andalusian dialect. The most important award in flamenco singing is probably the Golden Key of Cante, which has been awarded five times to: El Nitri, Manuel Vallejo, Antonio Mairena, Island Shrimp and Fosforito. The origins, history and importance of the cante is covered in the main Wikipedia entry for the cante flamenco. Baile (dance) El baile flamenco is known for its emotional intensity, proud carriage, expressive use of the arms and rhythmic stamping of the feet, unlike tap dance or Irish dance which use different techniques. As with any dance form, many different styles of flamenco have developed. In the 20th century, flamenco danced informally at gitano (Roma) celebrations in Spain was considered the most "authentic" form of flamenco. There was less virtuoso technique in gitano flamenco, but the music and steps are fundamentally the same. The arms are noticeably different from classical flamenco, curving around the head and body rather than extending, often with a bent elbow. "Flamenco puro" otherwise known as "flamenco por derecho" is considered the form of performance flamenco closest to its gitano influences. In this style, the dance is often performed solo, and is based on signals and calls of structural improvisation rather than choreographed. In the improvisational style, castanets are not often used. "Classical flamenco" is the style most frequently performed by Spanish flamenco dance companies. It is danced largely in a proud and upright style. For women, the back is often held in a marked back bend. Unlike the more gitano influenced styles, there is little movement of the hips, the body is tightly held and the arms are long, like a ballet dancer. In fact many of the dancers in these companies are trained in Ballet Clásico Español more than in the improvisational language of flamenco. Flamenco has both influenced and been influenced by Ballet Clásico Español, as evidenced by the fusion of the two ballets created by 'La Argentinita' in the early part of the 20th century and later, by Joaquín Cortés, eventually by the entire Ballet Nacional de España et al. In the 1950s Jose Greco was one of the most famous male flamenco dancers, performing on stage worldwide and on television including the Ed Sullivan Show, and reviving the art almost singlehandedly. Greco's company left a handful of prominent pioneers, most notably: Maria Benitez and Vicente Romero of New Mexico. Today, there are many centers of flamenco art. Albuquerque, New Mexico is considered the "Center of the Nation" for flamenco art. Much of this is due to Maria Benitez's 37 years of sold-out summer seasons. Albuquerque boasts three distinct prominent centers: National Institute of Flamenco, Casa Flamenca and Flamenco Works. Each center dedicates time to daily training, cultural diffusion and world-class performance equaled only to world-class performances one would find in the heart of Southern Spain, Andalucía. Modern flamenco is a highly technical dance style requiring years of study. The emphasis for both male and female performers is on lightning-fast footwork performed with absolute precision. In addition, the dancer may have to dance while using props such as castanets, canes, shawls and fans. "Flamenco nuevo" is a recent marketing phenomenon in flamenco. Marketed as a "newer version" of flamenco, its roots came from world-music promoters trying to sell albums of artists who created music that "sounded like" or had Spanish-style influences. Though some of this music was played in similar pitches, scales and was well-received, it has little to nothing to do with the art of flamenco guitar, dance, cante Jondo or the improvisational language. "Nuevo flamenco" consists largely of compositions and repertoire, while traditional flamenco music and dance is a language composed of stanzas, actuated by oral formulaic calls and signals. The flamenco most foreigners are familiar with is a style that was developed as a spectacle for tourists. To add variety, group dances are included and even solos are more likely to be choreographed. The frilly, voluminous spotted dresses are derived from a style of dress worn for the Sevillanas at the annual Feria in Seville. In traditional flamenco, only the very young or older dancers are considered to have the emotional innocence or maturity to adequately convey the duende (soul) of the genre . Therefore, unlike other dance forms, where dancers turn professional through techniques early on to take advantage of youth and strength, many flamenco dancers do not hit their peak until their thirties and will continue to perform into their fifties and beyond. One artist that is considered a young master is Juan Manuel Fernandez Montoya, otherwise known as "Farruquito". At age 12, Farruquito was considered a pioneer and for "Flamenco Puro", or "Flamenco por Derecho", because of his emotional depth. Scenes of flamenco performance in Seville. Regulated teaching of flamenco in educational centers In Spain, regulated flamenco studies are officially taught in various music conservatories, dance conservatories and music schools in various autonomous communities. Conservatories of music Flamenco guitar studies in official educational centers began in Spain in 1988 at the hands of the great concert performer and teacher from Granada Manuel Cano Tamayo, who obtained a position as emeritus professor at the Superior Conservatory de Música Rafael Orozco from Córdoba. There are specialized flamenco conservatories throughout the country, although mainly in the Andalusia region, such as the aforementioned Córdoba Conservatory, the Murcia Superior Music Conservatory or the Superior Music School of Catalonia, among others. Outside of Spain, a unique case is the Rotterdam Conservatory, in the Netherlands, which offers regulated flamenco guitar studies under the direction of maestro Paco Peña since 1985, a few years before they existed in Spain. University In 2018 the first university master's degree in flamenco research and analysis begins, after the previous attempts of the "Doctorate Program of Approach to Flamenco", taught by several universities such as Huelva, Seville, Cádiz and Córdoba, among others. History The fandango, which in the 17th century was the most widespread song and dance throughout Spain, eventually ended up generating local and regional variants, especially in the province of Huelva. In Alta Andalucía and bordering areas the fandangos were accompanied with the bandola, an instrument with which they accompanied themselves following a regular beat that allowed dancing and from whose name the style derives " abandoned ". Thus arose the fandangos of Lucena, the drones of Puente Genil, the primitive malagueñas, the rondeñas, the jaberas, the jabegotes, the verdiales, the chacarrá, the granaína, the taranto and the taranta. Due to the expansion of the Sevillanas in Baja Andalusia, the fandango gradually lost its role as a support for the dance, which allowed the singer to shine and freedom, generating a multitude of fandangos of personal creation in the 20th century. Likewise, thousands of Andalusian peasants, especially from the Eastern Andalusian provinces, emigrated to the mining sites Murcian, where the tarantos and taranta s evolved. The Tarante de Linares, evolved into the mining of the Union, the Cartagena and the Levantica. At the time of the cafés cantantes, some of these cantes were separated from the dance and acquired a free beat, which allowed the performers to show off. The great promoter of this process was Antonio Chacón, who developed precious versions of malagueñas, granainas and cantes mineros. The stylization of romance and cord sheets gave rise to corrido. The extraction of the romances from quatrains or three significant verses gave rise to the primitive tonás, the caña and the polo, which share meter and melody, but differing in their execution. The guitar accompaniment gave them a beat that made them danceable. It is believed that their origin was in Ronda, a city in Alta Andalucía close to Baja Andalucía and closely related to it, and that from there they reached the Sevillian suburb of Triana, with a great tradition of corridos, where they became the soleá. From the festive performance of corridos and soleares, the jaleos arose in Triana, who traveled to Extremadura and in Jerez and Utrera led to the bulería, from where they spread throughout Baja Andalucía, generating local variations. Lexicon Ole Adolfo Salazar states that the expressive voice ole, with which Andalusian cantaores and bailaores are encouraged, can come from the Hebrew verb oleh which means "to throw upwards", showing that the dervish s gyrovagos of Tunisia also dance around to the sound of repeated" ole "or" joleh ". The use of the word "arza", which is the Andalusian dialect form, of pronouncing the voice imperative "rise", with the characteristic Andalusian equalization of / l / and / r / implosives. The indiscriminate use of the voices "arza" and "ole" is frequent when it comes to jalear, but the most evidence of the origin of this word can be from the caló: Olá, which means "come". Likewise, in Andalusia it is known as jaleo al ojeo de hunt, that is, the act of glancing, which is "driving away the game with voices, shots, blows or noise, so that they 'get up. Duende According to the RAE dictionary (1956!) The "duende" in Andalusia is a "mysterious and ineffable charm", a charisma that the Gitanos call duende. Federico García Lorca, in his lecture Teoría y juego del duende confirms this ineffability of the duende by defining it with the following words from Goethe: "Mysterious power that everyone feels and that no philosopher explains". In the flamenco imaginary, the duende goes beyond technique and inspiration, in Lorca's words "To search for the duende there is no map or exercise". When a flamenco artist experiences the arrival of this mysterious charm, the expressions "have duende" or sing, play or dance "with duende" are used. Along with those previously mentioned, there are many other words and expressions characteristic of the flamenco genre, such as "tablao flamenco", "tablao flamenco", "flamenco spree", "third", "aflamencar", "flamenco", "flamenco". See also References Sources Álvarez Caballero, Ángel: El cante flamenco, Alianza Editorial, Madrid, Second edition, 1998. (First edition: 1994) Álvarez Caballero, Ángel: La Discografía ideal del cante flamenco, Planeta, Barcelona, 1995. Arredondo Pérez, Herminia, and Francisco J. García Gallardo: "Música flamenca. Nuevos artistas, antiguas tradiciones" In Andalucía en la música. Expresión de comunidad, construcción de identidad, edited by Francisco J. García y Herminia Arredondo. Sevilla: Centro de Estudios Andaluces, 2014, pp. 225–242. Banzi, Julia Lynn (PhD): "Flamenco Guitar Innovation and the Circumscription of Tradition" 2007, 382 pages; AAT 328581, DAI-A 68/10, University of California, Santa Barbara. Caba Landa, Pedro, and Carlos Caba Landa. Andalucía, su comunismo y su cante jondo. First edition, Editorial Atlántico 1933. Third edition, Editorial Renacimiento 2008. Coelho, Víctor Anand (Editor): "Flamenco Guitar: History, Style, and Context", in The Cambridge Companion to the Guitar, Cambridge University Press, 2003, pp. 13–32. In {{wikicite|ref=|reference=Hoces Bonavilla, Sabas de. n.d. Revista de Folklore, no. 23:147–157 (archive from 24 September 2015).}} Mairena, Antonio, and Ricardo Molina. Mundo y formas del cante flamenco, Librería Al-Ándalus, third edition, 1979 (First Edition: Revista de Occidente, 1963) . Martín Salazar, Jorge: Los cantes flamencos, Diputación Provincial de Granada, Granada, 1991 Ortiz Nuevo, José Luis: Alegato contra la pureza, Libros PM, Barcelona, 1996. Rito y geografía del cante. Serie documental de los años 70 del siglo XX sobre los orígenes, estilos y pervivencia del cante flamenco, con José María Velázquez-Gaztelu. Nuestro flamenco: programa de Radio Clásica, con José María Velázquez-Gaztelu. Agencia Andaluza para el Desarrollo del Flamenco Flamenco Viejo Flamenco Olímpico Reportaje Documental Flamenco de la A a la Z: breve enciclopedia del flamenco que incluye diccionario en el sitio de Radiolé. GRANDE, Félix: Memoria del flamenco, con prólogo de José Manuel Caballero Bonald. Galaxia Gutenberg/Círculo de Lectores, Barcelona, 1991. Texto en PDF. Flamenco en Sevilla LAFUENTE ALCÁNTARA, Emilio (1825–1868): Cancionero popular. Colección escogida de seguidillas y coplas'', 1865. Vol. II: Coplas; texto en Google Books. Sobre Emilio Lafuente Alcántara, hermano de Miguel Lafuente Alcántara, en el sitio Biblioteca Virtual de Arabistas y Africanistas Españoles. Universo Lorca | El Concurso del Cante Jondo de 1922. Web dedicada a la vida y obra de Federico García Lorca y su vinculación con Granada. (Diputación de Granada) Los Palos del Flamenco | Los Palos del Flamenco. Artículos sobre el origen y evolución del arte flamenco. (Flamencos Online) Notes External links Flamenco show in Seville Spanish music Andalusian music
from the classic flamenco. This has generated very different feelings, both for and against. Other contemporary artists of that moment were O'Funkillo and Ojos de Brujo, Arcángel, Miguel Poveda, Mayte Martín, Marina Heredia, Estrella Morente or Manuel Lombo, etc. But the discussion between the difference of flamenco and new flamenco in Spain has just gained strength during since 2019 due to the success of new flamenco attracting the taste of the youngest Spanish fans but also in the international musical scene emphasizing the problem of how should we call this new musical genre mixed with flamenco. One of these artist who has reinvented flamenco is Rosalía, an indisputable name on the international music scene. "Pienso en tu mirá", "Di mi nombre" or the song that catapulted her to fame, "Malamente", are a combination of styles that includes a flamenco/south Spain traditional musical base. Rosalía has broken the limits of this musical genre by embracing other urban rhythms, but has also created a lot of controversy about which genre is she using. The Catalan artist has been awarded several Latin GrammyAwards and MTV Video Music Awards, which also, at just 26 years old, garners more than 12 million monthly listeners on Spotify. But it is not the only successful case, the Granada-born Dellafuente, C. Tangana, MAKA, RVFV, Demarco Flamenco, Maria Àrnal and Marcel Bagés, El Niño de Elche, Sílvia Pérez Cruz; Califato 3/4, Juanito Makandé, Soledad Morente, María José Llergo o Fuel Fandango are only a few of the new spanish musical scene that includes flamenco in their music. It seems that the Spanish music scene is experiencing a change in its music and new rhythms are re-emerging together with new artists who are experimenting to cover a wider audience that wants to maintain the closeness that flamenco has transmitted for decades. Flamenco Culture Overseas The state of New Mexico, located in the southwest of the United States maintains a strong identity with Flamenco culture. The University of New Mexico located in Albuquerque offers a graduate degree program in Flamenco. Flamenco performances are widespread in the Albuquerque and Santa Fe communities, with the National institute of Flamenco sponsoring an annual festival, as well as a variety of professional flamenco performacess offere at various locales. Emmy Grimm, known by her stage name La Emi is a professional Flamenco dancer and native to New Mexico who performs as well as teaches Flamenco in Santa Fe. She continues studying her art by traveling to Spain to work intensively with Carmela Greco and La Popi, as well as José Galván, Juana Amaya, Yolanda Heredia, Ivan Vargas Heredia, Torombo and Rocio Alcaide Ruiz. Main Palos Palos (formerly known as cantes) are flamenco styles, classified by criteria such as rhythmic pattern, mode, chord progression, stanzaic form and geographic origin. There are over 50 different palos, some are sung unaccompanied while others have guitar or other accompaniment. Some forms are danced while others are not. Some are reserved for men and others for women while some may be performed by either, though these traditional distinctions are breaking down: the Farruca, for example, once a male dance, is now commonly performed by women too. There are many ways to categorize Palos but they traditionally fall into three classes: the most serious is known as cante jondo (or cante grande), while lighter, frivolous forms are called Cante Chico. Forms that do not fit either category are classed as Cante Intermedio . These are the best known palos (; ): Alegrías The alegrías are thought to derive from the Aragonese jota, which took root in Cadiz during the Peninsular war and the establishment of the Cortes de Cadiz. That is why its classic lyrics contain so many references to the Virgen del Pilar, the Ebro River and Navarra. Enrique Butrón is considered to have formalized the current flamenco style of alegrías and Ignacio Espeleta who introduced the characteristic "tiriti, tran, tran...". Some of the best known interpreters of alegrías are Enrique el Mellizo, Chato de la Isla, Pinini, Pericón de Cádiz, Aurelio Sellés, La Perla de Cádiz, Chano Lobato and El Folli. One of the structurally strictest forms of flamenco, a traditional dance in alegrías must contain each of the following sections: a salida (entrance), paseo (walkaround), silencio (similar to an adagio in ballet), castellana (upbeat section) zapateado (Literally "a tap of the foot") and bulerías. This structure though, is not followed when alegrías are sung as a standalone song (with no dancing). In that case, the stanzas are combined freely, sometimes together with other types of cantiñas. Alegrías has a rhythm consisting of 12 beats. It is similar to Soleares. Its beat emphasis is as follows: 1 2 [3] 4 5 [6] 7 [8] 9 [10] 11 [12]. Alegrías originated in Cádiz. Alegrías belongs to the group of palos called Cantiñas and it is usually played in a lively rhythm (120-170 beats per minute). The livelier speeds are chosen for dancing, while quieter rhythms are preferred for the song alone. Bulerías Bulerías a fast flamenco rhythm made up of a 12 beat cycle with emphasis in two general forms as follows: [12] 1 2 [3] 4 5 [6] 7 [8] 9 [10] 11 or [12] 1 2 [3] 4 5 6 [7] [8] 9 [10] 11. It originated among the Calé Romani people of Jerez during the 19th century, originally as a fast, upbeat ending to soleares or alegrias. It is among the most popular and dramatic of the flamenco forms and often ends any flamenco gathering, often accompanied by vigorous dancing and tapping. Fandango Granaínas Guajiras Malagueñas Peteneras Saeta Seguiriyas Soleá Tangos Tanguillos Tarantos Tientos Music Structure A typical flamenco recital with voice and guitar accompaniment comprises a series of pieces (not exactly "songs") in different palos. Each song is a set of verses (called copla, tercio, or letras), punctuated by guitar interludes (falsetas). The guitarist also provides a short introduction setting the tonality, compás (see below) and tempo of the cante . In some palos, these falsetas are played with a specific structure too; for example, the typical sevillanas is played in an AAB pattern, where A and B are the same falseta with only a slight difference in the ending . Harmony Flamenco uses the flamenco mode (which can also be described as the modern Phrygian mode (modo frigio), or a harmonic version of that scale with a major 3rd degree), in addition to the major and minor scales commonly used in modern Western music. The Phrygian mode occurs in palos such as soleá, most bulerías, siguiriyas, tangos and tientos. A typical chord sequence, usually called the "Andalusian cadence" may be viewed as in a modified Phrygian: in E the sequence is Am–G–F–E . According to Manolo Sanlúcar E is here the tonic, F has the harmonic function of dominant while Am and G assume the functions of subdominant and mediant respectively . Guitarists tend to use only two basic inversions or "chord shapes" for the tonic chord (music), the open 1st inversion E and the open 3rd inversion A, though they often transpose these by using a capo. Modern guitarists such as Ramón Montoya, have introduced other positions: Montoya himself started to use other chords for the tonic in the modern Dorian sections of several palos; F for tarantas, B for granaínas and A for the minera. Montoya also created a new palo as a solo for guitar, the rondeña in C with scordatura. Later guitarists have further extended the repertoire of tonalities, chord positions and scordatura. There are also palos in major mode; most cantiñas and alegrías, guajiras, some bulerías and tonás, and the cabales (a major type of siguiriyas). The minor mode is restricted to the Farruca, the milongas (among cantes de ida y vuelta), and some styles of tangos, bulerías, etc. In general traditional palos in major and minor mode are limited harmonically to two-chord (tonic–dominant) or three-chord (tonic–subdominant–dominant) progressions . However modern guitarists have introduced chord substitution, transition chords, and even modulation. Fandangos and derivative palos such as malagueñas, tarantas and cartageneras are bimodal: guitar introductions are in Phrygian mode while the singing develops in major mode, modulating to Phrygian at the end of the stanza . Melody Dionisio Preciado, quoted by Sabas de , established the following characteristics for the melodies of flamenco singing: Microtonality: presence of intervals smaller than the semitone. Portamento: frequently, the change from one note to another is done in a smooth transition, rather than using discrete intervals. Short tessitura or range: Most traditional flamenco songs are limited to a range of a sixth (four tones and a half). The impression of vocal effort is the result of using different timbres, and variety is accomplished by the use of microtones. Use of enharmonic scale. While in equal temperament scales, enharmonics are notes with identical pitch but different spellings (e.g. A♭ and G♯); in flamenco, as in unequal temperament scales, there is a microtonal intervalic difference between enharmonic notes. Insistence on a note and its contiguous chromatic notes (also frequent in the guitar), producing a sense of urgency. Baroque ornamentation, with an expressive, rather than merely aesthetic function. Apparent lack of regular rhythm, especially in the siguiriyas: the melodic rhythm of the sung line is different from the metric rhythm of the accompaniment. Most styles express sad and bitter feelings. Melodic improvisation: flamenco singing is not, strictly speaking, improvised, but based on a relatively small number of traditional songs, singers add variations on the spur of the moment. Musicologist Hipólito Rossy adds the following characteristics : Flamenco melodies are characterized by a descending tendency, as opposed to, for example, a typical opera aria, they usually go from the higher pitches to the lower ones, and from forte to piano, as was usual in ancient Greek scales. In many styles, such as soleá or siguiriya, the melody tends to proceed in contiguous degrees of the scale. Skips of a third or a fourth are rarer. However, in fandangos and fandango-derived styles, fourths and sixths can often be found, especially at the beginning of each line of verse. According to Rossy, this is proof of the more recent creation of this type of songs, influenced by Castilian jota. Compás or time signature Compás is the Spanish word for metre or time signature (in classical music theory). It also refers to the rhythmic cycle, or layout, of a palo. The compás is fundamental to flamenco. Compás is most often translated as rhythm but it demands far more precise interpretation than any other Western style of music. If there is no guitarist available, the compás is rendered through hand clapping (palmas) or by hitting a table with the knuckles. The guitarist uses techniques like strumming (rasgueado) or tapping the soundboard (golpe). Changes of chords emphasize the most important downbeats. Flamenco uses three basic counts or measures: Binary, Ternary and a form of a twelve-beat cycle that is unique to flamenco. There are also free-form styles including, among others, the tonás, saetas, malagueñas, tarantos, and some types of fandangos. Rhythms in or . These metres are used in forms like tangos, tientos, gypsy rumba, zambra and tanguillos. Rhythms in . These are typical of fandangos and sevillanas, suggesting their origin as non-Roma styles, since the and measures are not common in ethnic Roma music. 12-beat rhythms usually rendered in amalgams of + and sometimes . The 12-beat cycle is the most common in flamenco, differentiated by the accentuation of the beats in different palos. The accents do not correspond to the classic concept of the downbeat. The alternating of groups of 2 and 3 beats is also common in Spanish folk dances of the 16th century such as the zarabanda, jácara and canarios. There are three types of 12-beat rhythms, which vary in their layouts, or use of accentuations: soleá, seguiriya and bulería. peteneras and guajiras: 1 2 3 4 5 6 7 8 9 10 11 12. Both palos start with the strong accent on 12. Hence the meter is 12 1 2 3 4 5 6 7 8 9 10 11. The seguiriya, liviana, serrana, toná liviana, cabales: 121 2 3 4 5 6 7 8 9 10 11 12. soleá, within the cantiñas group of palos which includes the alegrías, cantiñas, mirabras, romera, caracoles and soleá por bulería (also "bulería por soleá"): 1 2 3 4 5 6 7 8 9 10 11 12. For practical reasons, when transferring flamenco guitar music to sheet music, this rhythm is written as a regular . The Bulerías is the emblematic palo of flamenco: today its 12-beat cycle is most often played with accents on the 3rd, 6th, 8th, 10th and 12th beats. The accompanying palmas are played in groups of 6 beats, giving rise to a multitude of counter-rhythms and percussive voices within the 12 beat compás. In certain regions like, Xerez, Spain, the rhythm stays in a simpler six-count rhythm, only including the twelve count in a musical resolve. Forms of flamenco expression Toque (guitar) The posture and technique of flamenco guitarists, called "tocaores", differs from that used by the players of classical guitar. While the classical guitarist supports the guitar on his left leg in an inclined way, the flamenco guitarist usually crosses his legs and supports it on the one that is higher, placing the neck in an almost horizontal position with respect to the ground. Modern guitarists usually use classical guitars, although there is a specific instrument for this genre called flamenco guitar. This is less heavy, and its body is narrower than that of the classical guitar, so its sound is lower and does not overshadow the cantaor. It is usually made of cypress wood, with the handle
golden age of the English past, allegedly since lost, that was characterised by universal hospitality and charity. The notion had a profound influence on the way that popular customs were seen, and most of the 19th century writers who bemoaned the state of contemporary Christmases were, at least to some extent, yearning for the mythical Merry England version. Thomas Hervey's The Book of Christmas (1836), illustrated by Robert Seymour, exemplifies this view. In Hervey's personification of the lost charitable festival, "Old Father Christmas, at the head of his numerous and uproarious family, might ride his goat through the streets of the city and the lanes of the village, but he dismounted to sit for some few moments by each man's hearth; while some one or another of his merry sons would break away, to visit the remote farm-houses or show their laughing faces at many a poor man's door." Seymour's illustration shows Old Christmas dressed in a fur gown, crowned with a holly wreath, and riding a yule goat. In an extended allegory, Hervey imagines his contemporary Old Father Christmas as a white-bearded magician dressed in a long robe and crowned with holly. His children are identified as Roast Beef (Sir Loin) and his faithful squire or bottle-holder Plum Pudding; the slender figure of Wassail with her fount of perpetual youth; a 'tricksy spirit' who bears the bowl and is on the best of terms with the Turkey; Mumming; Misrule, with a feather in his cap; the Lord of Twelfth Night under a state-canopy of cake and wearing his ancient crown; Saint Distaff looking like an old maid ("she used to be a sad romp; but her merriest days we fear are over"); Carol singing; the Waits; and the twin-faced Janus. Hervey ends by lamenting the lost "uproarious merriment" of Christmas, and calls on his readers "who know anything of the 'old, old, very old, gray-bearded gentleman' or his family to aid us in our search after them; and with their good help we will endeavor to restore them to some portion of their ancient honors in England". Father Christmas or Old Christmas, represented as a jolly-faced bearded man often surrounded by plentiful food and drink, started to appear regularly in illustrated magazines of the 1840s. He was dressed in a variety of costumes and usually had holly on his head, as in these illustrations from the Illustrated London News: Charles Dickens's 1843 novel A Christmas Carol was highly influential, and has been credited both with reviving interest in Christmas in England and with shaping the themes attached to it. A famous image from the novel is John Leech's illustration of the 'Ghost of Christmas Present'. Although not explicitly named Father Christmas, the character wears a holly wreath, is shown sitting among food, drink and wassail bowl, and is dressed in the traditional loose furred gown—but in green rather than the red that later become ubiquitous. Later 19th century mumming Old Father Christmas continued to make his annual appearance in Christmas folk plays throughout the 19th century, his appearance varying considerably according to local custom. Sometimes, as in Hervey's book of 1836, he was portrayed (below left) as a hunchback. One unusual portrayal (below centre) was described several times by William Sandys between 1830 and 1852, all in essentially the same terms: "Father Christmas is represented as a grotesque old man, with a large mask and comic wig, and a huge club in his hand." This representation is considered by the folklore scholar Peter Millington to be the result of the southern Father Christmas replacing the northern Beelzebub character in a hybrid play. A spectator to a Worcestershire version of the St George play in 1856 noted, "Beelzebub was identical with Old Father Christmas." A mummers play mentioned in The Book of Days (1864) opened with "Old Father Christmas, bearing, as emblematic devices, the holly bough, wassail-bowl, &c". A corresponding illustration (below right) shows the character wearing not only a holly wreath but also a gown with a hood. In a Hampshire folk play of 1860 Father Christmas is portrayed as a disabled soldier: "[he] wore breeches and stockings, carried a begging-box, and conveyed himself upon two sticks; his arms were striped with chevrons like a noncommissioned officer." In the latter part of the 19th century and the early years of the next the folk play tradition in England rapidly faded, and the plays almost died out after the First World War taking their ability to influence the character of Father Christmas with them. Father Christmas as gift-giver In pre-Victorian personifications, Father Christmas had been concerned essentially with adult feasting and games. He had no particular connection with children, nor with the giving of presents. But as Victorian Christmases developed into family festivals centred mainly on children, Father Christmas started to be associated with the giving of gifts. The Cornish Quaker diarist Barclay Fox relates a family party given on 26 December 1842 that featured "the venerable effigies of Father Christmas with scarlet coat & cocked hat, stuck all over with presents for the guests, by his side the old year, a most dismal & haggard old beldame in a night cap and spectacles, then 1843 [the new year], a promising baby asleep in a cradle". In Britain, the first evidence of a child writing letters to Father Christmas requesting gift has been found in 1895. Santa Claus crosses the Atlantic The figure of Santa Claus had originated in the US, drawing at least partly upon Dutch St Nicolas traditions. A New York publication of 1821, A New-Year’s Present, contained an illustrated poem Old Santeclaus with Much Delight in which a Santa figure on a reindeer sleigh brings presents for good children and a "long, black birchen rod" for use on the bad ones. In 1823 came the famous poem A Visit from St. Nicholas, usually attributed to the New York writer Clement Clarke Moore, which developed the character further. Moore's poem became immensely popular and Santa Claus customs, initially localized in the Dutch American areas, were becoming general in the United States by the middle of the century. The January 1848 edition of Howitt's Journal of Literature and Popular Progress, published in London, carried an illustrated article entitled "New Year's Eve in Different Nations". This noted that one of the chief features of the American New Year's Eve was a custom carried over from the Dutch, namely the arrival of Santa Claus with gifts for the children. Santa Claus is "no other than the Pelz Nickel of Germany ... the good Saint Nicholas of Russia ... He arrives in Germany about a fortnight before Christmas, but as may be supposed from all the visits he has to pay there, and the length of his voyage, he does not arrive in America, until this eve." In 1851 advertisements began appearing in Liverpool newspapers for a new transatlantic passenger service to and from New York aboard the Eagle Line's ship Santa Claus, and returning visitors and emigrants to the British Isles on this and other vessels will have been familiar with the American figure. There were some early adoptions in Britain. A Scottish reference has Santa Claus leaving presents on New Year's Eve 1852, with children "hanging their stockings up on each side of the fire-place, in their sleeping apartments, at night, and waiting patiently till morning, to see what Santa Claus puts into them during their slumbers". In Ireland in 1853, on the other hand, presents were being left on Christmas Eve according to a character in a newspaper short story who says "... tomorrow will be Christmas. What will Santa Claus bring us?" A poem published in Belfast in 1858 includes the lines "The children sleep; they dream of him, the fairy, / Kind Santa Claus, who with a right good will / Comes down the chimney with a footstep airy ..."A Visit from St. Nicholas was published in England in December 1853 in Notes and Queries. An explanatory note states that the St Nicholas figure is known as Santa Claus in New York State and as Krishkinkle in Pennsylvania. 1854 marked the first English publication of Carl Krinkin; or, The Christmas Stocking by the popular American author Susan Warner. The novel was published three times in London in 1854–5, and there were several later editions. Characters in the book include both Santa Claus (complete with sleigh, stocking and chimney), leaving presents on Christmas Eve and—separately—Old Father Christmas. The Stocking of the title tells of how in England, "a great many years ago", it saw Father Christmas enter with his traditional refrain "Oh! here come I, old father Christmas, welcome or not ..." He wore a crown of yew and ivy, and he carried a long staff topped with holly-berries. His dress "was a long brown robe which fell down about his feet, and on it were sewed little spots of white cloth to represent snow". Merger with Santa Claus As the US-inspired customs became popular in England, Father Christmas started to take on Santa's attributes. His costume became more standardised, and although depictions often still showed him carrying holly, the holly crown became rarer and was often replaced with a hood. It still remained common, though, for Father Christmas and Santa Claus to be distinguished, and as late as the 1890s there were still examples of the old-style Father Christmas appearing without any of the new American features. Appearances in public The blurring of public roles occurred quite rapidly. In an 1854 newspaper description of the public Boxing Day festivities in Luton, Bedfordshire, a gift-giving Father Christmas/Santa Claus figure was already being described as 'familiar': "On the right-hand side was Father Christmas's bower, formed of evergreens, and in front was the proverbial Yule log, glistening in the snow ... He wore a great furry white coat and cap, and a long white beard and hair spoke to his hoar antiquity. Behind his bower he had a large selection of fancy articles which formed the gifts he distributed to holders of prize tickets from time to time during the day ... Father Christmas bore in his hand a small Christmas tree laden with bright little gifts and bon-bons, and altogether he looked like the familiar Santa Claus or Father Christmas of the picture book." Discussing the shops of Regent Street in London, another writer noted in December of that year, "you may fancy yourself in the abode of Father Christmas or St. Nicholas himself." During the 1860s and 70s Father Christmas became a popular subject on Christmas cards, where he was shown in many different costumes. Sometimes he gave presents and sometimes received them. An illustrated article of 1866 explained the concept of The Cave of Mystery. In an imagined children's party this took the form of a recess in the library which evoked "dim visions of the cave of Aladdin" and was "well filled ... with all that delights the eye, pleases the ear, or tickles the fancy of children". The young guests "tremblingly await the decision of the improvised Father Christmas, with his flowing grey beard, long robe, and slender staff". From the 1870s onwards, Christmas shopping had begun to evolve as a separate seasonal activity, and by the late 19th century it had become an important part of the English Christmas. The purchasing of toys, especially from the new department stores, became strongly associated with the season. The first retail Christmas Grotto was set up in JR Robert's store in Stratford, London in December 1888, and shopping arenas for children—often called 'Christmas Bazaars'—spread rapidly during the 1890s and 1900s, helping to assimilate Father Christmas/Santa Claus into society. Sometimes the two characters continued to be presented as separate, as in a procession at the Olympia Exhibition of 1888 in which both Father Christmas and Santa Claus took part, with Little Red Riding Hood and other children's characters in between. At other times the characters were conflated: in 1885 Mr Williamson's London Bazaar in Sunderland was reported to be a "Temple of juvenile delectation and delight. In the well-lighted window is a representation of Father Christmas, with the printed intimation that 'Santa Claus is arranging within.'" Even after the appearance of the store grotto, it was still not firmly established who should hand out gifts at parties. A writer in the Illustrated London News of December 1888 suggested that a Sibyl should dispense gifts from a 'snow cave', but a little over a year later she had changed her recommendation to a gypsy in a 'magic cave'. Alternatively, the hostess could "have Father Christmas arrive, towards the end of the evening, with a sack of toys on his back. He must have a white head and a long white beard, of course. Wig and beard can be cheaply hired from a theatrical costumier, or may be improvised from tow in case of need. He should wear a greatcoat down to his heels, liberally sprinkled with flour as though he had just come from that land of ice where Father Christmas is supposed to reside." As secret nocturnal visitor The nocturnal visitor aspect of the American myth took much longer to become naturalised. From the 1840s it had been accepted readily enough that presents were left for children by unseen hands overnight on Christmas Eve, but the receptacle was a matter of debate, as was the nature of the visitor. Dutch tradition had St Nicholas leaving presents in shoes laid out on 5 December, while in France shoes were filled by Père Noël. The older shoe custom and the newer American stocking custom trickled only slowly into Britain, with writers and illustrators remaining uncertain for many years. Although the stocking eventually triumphed, the shoe custom had still not been forgotten by 1901 when an illustration entitled Did you see Santa Claus, Mother? was accompanied by the verse "Her Christmas dreams / Have all come true; / Stocking o'erflows / and likewise shoe." Before Santa Claus and the stocking became ubiquitous, one English tradition had been for fairies to visit on Christmas Eve to leave gifts in shoes set out in front of the fireplace. Aspects of the American Santa Claus myth were sometimes adopted in isolation and applied to Father Christmas. In a short fantasy piece, the editor of the Cheltenham Chronicle in 1867 dreamt of being seized by the collar by Father Christmas, "rising up like a Geni of the Arabian Nights ... and moving rapidly through the aether". Hovering over the roof of a house, Father Christmas cries 'Open Sesame' to have the roof roll back to disclose the scene within. It was not until the 1870s that the tradition of a nocturnal Santa Claus began to be adopted by ordinary people. The poem The Baby's Stocking, which was syndicated to local newspapers in 1871, took it for granted that readers would be familiar with the custom, and would understand the joke that the stocking might be missed as "Santa Claus wouldn't be looking for anything half so small." On the other hand, when The Preston Guardian published its poem Santa Claus and the Children in 1877 it felt the need to include a long preface explaining exactly who Santa Claus was. Folklorists and antiquarians were not, it seems, familiar with the new local customs and Ronald Hutton notes that in 1879 the newly formed Folk-Lore Society, ignorant of American practices,
wearing his ancient crown; Saint Distaff looking like an old maid ("she used to be a sad romp; but her merriest days we fear are over"); Carol singing; the Waits; and the twin-faced Janus. Hervey ends by lamenting the lost "uproarious merriment" of Christmas, and calls on his readers "who know anything of the 'old, old, very old, gray-bearded gentleman' or his family to aid us in our search after them; and with their good help we will endeavor to restore them to some portion of their ancient honors in England". Father Christmas or Old Christmas, represented as a jolly-faced bearded man often surrounded by plentiful food and drink, started to appear regularly in illustrated magazines of the 1840s. He was dressed in a variety of costumes and usually had holly on his head, as in these illustrations from the Illustrated London News: Charles Dickens's 1843 novel A Christmas Carol was highly influential, and has been credited both with reviving interest in Christmas in England and with shaping the themes attached to it. A famous image from the novel is John Leech's illustration of the 'Ghost of Christmas Present'. Although not explicitly named Father Christmas, the character wears a holly wreath, is shown sitting among food, drink and wassail bowl, and is dressed in the traditional loose furred gown—but in green rather than the red that later become ubiquitous. Later 19th century mumming Old Father Christmas continued to make his annual appearance in Christmas folk plays throughout the 19th century, his appearance varying considerably according to local custom. Sometimes, as in Hervey's book of 1836, he was portrayed (below left) as a hunchback. One unusual portrayal (below centre) was described several times by William Sandys between 1830 and 1852, all in essentially the same terms: "Father Christmas is represented as a grotesque old man, with a large mask and comic wig, and a huge club in his hand." This representation is considered by the folklore scholar Peter Millington to be the result of the southern Father Christmas replacing the northern Beelzebub character in a hybrid play. A spectator to a Worcestershire version of the St George play in 1856 noted, "Beelzebub was identical with Old Father Christmas." A mummers play mentioned in The Book of Days (1864) opened with "Old Father Christmas, bearing, as emblematic devices, the holly bough, wassail-bowl, &c". A corresponding illustration (below right) shows the character wearing not only a holly wreath but also a gown with a hood. In a Hampshire folk play of 1860 Father Christmas is portrayed as a disabled soldier: "[he] wore breeches and stockings, carried a begging-box, and conveyed himself upon two sticks; his arms were striped with chevrons like a noncommissioned officer." In the latter part of the 19th century and the early years of the next the folk play tradition in England rapidly faded, and the plays almost died out after the First World War taking their ability to influence the character of Father Christmas with them. Father Christmas as gift-giver In pre-Victorian personifications, Father Christmas had been concerned essentially with adult feasting and games. He had no particular connection with children, nor with the giving of presents. But as Victorian Christmases developed into family festivals centred mainly on children, Father Christmas started to be associated with the giving of gifts. The Cornish Quaker diarist Barclay Fox relates a family party given on 26 December 1842 that featured "the venerable effigies of Father Christmas with scarlet coat & cocked hat, stuck all over with presents for the guests, by his side the old year, a most dismal & haggard old beldame in a night cap and spectacles, then 1843 [the new year], a promising baby asleep in a cradle". In Britain, the first evidence of a child writing letters to Father Christmas requesting gift has been found in 1895. Santa Claus crosses the Atlantic The figure of Santa Claus had originated in the US, drawing at least partly upon Dutch St Nicolas traditions. A New York publication of 1821, A New-Year’s Present, contained an illustrated poem Old Santeclaus with Much Delight in which a Santa figure on a reindeer sleigh brings presents for good children and a "long, black birchen rod" for use on the bad ones. In 1823 came the famous poem A Visit from St. Nicholas, usually attributed to the New York writer Clement Clarke Moore, which developed the character further. Moore's poem became immensely popular and Santa Claus customs, initially localized in the Dutch American areas, were becoming general in the United States by the middle of the century. The January 1848 edition of Howitt's Journal of Literature and Popular Progress, published in London, carried an illustrated article entitled "New Year's Eve in Different Nations". This noted that one of the chief features of the American New Year's Eve was a custom carried over from the Dutch, namely the arrival of Santa Claus with gifts for the children. Santa Claus is "no other than the Pelz Nickel of Germany ... the good Saint Nicholas of Russia ... He arrives in Germany about a fortnight before Christmas, but as may be supposed from all the visits he has to pay there, and the length of his voyage, he does not arrive in America, until this eve." In 1851 advertisements began appearing in Liverpool newspapers for a new transatlantic passenger service to and from New York aboard the Eagle Line's ship Santa Claus, and returning visitors and emigrants to the British Isles on this and other vessels will have been familiar with the American figure. There were some early adoptions in Britain. A Scottish reference has Santa Claus leaving presents on New Year's Eve 1852, with children "hanging their stockings up on each side of the fire-place, in their sleeping apartments, at night, and waiting patiently till morning, to see what Santa Claus puts into them during their slumbers". In Ireland in 1853, on the other hand, presents were being left on Christmas Eve according to a character in a newspaper short story who says "... tomorrow will be Christmas. What will Santa Claus bring us?" A poem published in Belfast in 1858 includes the lines "The children sleep; they dream of him, the fairy, / Kind Santa Claus, who with a right good will / Comes down the chimney with a footstep airy ..."A Visit from St. Nicholas was published in England in December 1853 in Notes and Queries. An explanatory note states that the St Nicholas figure is known as Santa Claus in New York State and as Krishkinkle in Pennsylvania. 1854 marked the first English publication of Carl Krinkin; or, The Christmas Stocking by the popular American author Susan Warner. The novel was published three times in London in 1854–5, and there were several later editions. Characters in the book include both Santa Claus (complete with sleigh, stocking and chimney), leaving presents on Christmas Eve and—separately—Old Father Christmas. The Stocking of the title tells of how in England, "a great many years ago", it saw Father Christmas enter with his traditional refrain "Oh! here come I, old father Christmas, welcome or not ..." He wore a crown of yew and ivy, and he carried a long staff topped with holly-berries. His dress "was a long brown robe which fell down about his feet, and on it were sewed little spots of white cloth to represent snow". Merger with Santa Claus As the US-inspired customs became popular in England, Father Christmas started to take on Santa's attributes. His costume became more standardised, and although depictions often still showed him carrying holly, the holly crown became rarer and was often replaced with a hood. It still remained common, though, for Father Christmas and Santa Claus to be distinguished, and as late as the 1890s there were still examples of the old-style Father Christmas appearing without any of the new American features. Appearances in public The blurring of public roles occurred quite rapidly. In an 1854 newspaper description of the public Boxing Day festivities in Luton, Bedfordshire, a gift-giving Father Christmas/Santa Claus figure was already being described as 'familiar': "On the right-hand side was Father Christmas's bower, formed of evergreens, and in front was the proverbial Yule log, glistening in the snow ... He wore a great furry white coat and cap, and a long white beard and hair spoke to his hoar antiquity. Behind his bower he had a large selection of fancy articles which formed the gifts he distributed to holders of prize tickets from time to time during the day ... Father Christmas bore in his hand a small Christmas tree laden with bright little gifts and bon-bons, and altogether he looked like the familiar Santa Claus or Father Christmas of the picture book." Discussing the shops of Regent Street in London, another writer noted in December of that year, "you may fancy yourself in the abode of Father Christmas or St. Nicholas himself." During the 1860s and 70s Father Christmas became a popular subject on Christmas cards, where he was shown in many different costumes. Sometimes he gave presents and sometimes received them. An illustrated article of 1866 explained the concept of The Cave of Mystery. In an imagined children's party this took the form of a recess in the library which evoked "dim visions of the cave of Aladdin" and was "well filled ... with all that delights the eye, pleases the ear, or tickles the fancy of children". The young guests "tremblingly await the decision of the improvised Father Christmas, with his flowing grey beard, long robe, and slender staff". From the 1870s onwards, Christmas shopping had begun to evolve as a separate seasonal activity, and by the late 19th century it had become an important part of the English Christmas. The purchasing of toys, especially from the new department stores, became strongly associated with the season. The first retail Christmas Grotto was set up in JR Robert's store in Stratford, London in December 1888, and shopping arenas for children—often called 'Christmas Bazaars'—spread rapidly during the 1890s and 1900s, helping to assimilate Father Christmas/Santa Claus into society. Sometimes the two characters continued to be presented as separate, as in a procession at the Olympia Exhibition of 1888 in which both Father Christmas and Santa Claus took part, with Little Red Riding Hood and other children's characters in between. At other times the characters were conflated: in 1885 Mr Williamson's London Bazaar in Sunderland was reported to be a "Temple of juvenile delectation and delight. In the well-lighted window is a representation of Father Christmas, with the printed intimation that 'Santa Claus is arranging within.'" Even after the appearance of the store grotto, it was still not firmly established who should hand out gifts at parties. A writer in the Illustrated London News of December 1888 suggested that a Sibyl should dispense gifts from a 'snow cave', but a little over a year later she had changed her recommendation to a gypsy in a 'magic cave'. Alternatively, the hostess could "have Father Christmas arrive, towards the end of the evening, with a sack of toys on his back. He must have a white head and a long white beard, of course. Wig and beard can be cheaply hired from a theatrical costumier, or may be improvised from tow in case of need. He should wear a greatcoat down to his heels, liberally sprinkled with flour as though he had just come from that land of ice where Father Christmas is supposed to reside." As secret nocturnal visitor The nocturnal visitor aspect of the American myth took much longer to become naturalised. From the 1840s it had been accepted readily enough that presents were left for children by unseen hands overnight on Christmas Eve, but the receptacle was a matter of debate, as was the nature of the visitor. Dutch tradition had St Nicholas leaving presents in shoes laid out on 5 December, while in France shoes were filled by Père Noël. The older shoe custom and the newer American stocking custom trickled only slowly into Britain, with writers and illustrators remaining uncertain for many years. Although the stocking eventually triumphed, the shoe custom had still not been forgotten by 1901 when an illustration entitled Did you see Santa Claus, Mother? was accompanied by the verse "Her Christmas dreams / Have all come true; / Stocking o'erflows / and likewise shoe." Before Santa Claus and the stocking became ubiquitous, one English tradition had been for fairies to visit on Christmas Eve to leave gifts in shoes set out in front of the fireplace. Aspects of the American Santa Claus myth were sometimes adopted in isolation and applied to Father Christmas. In a short fantasy piece, the editor of the Cheltenham Chronicle in 1867 dreamt of being seized by the collar by Father Christmas, "rising up like a Geni of the Arabian Nights ... and moving rapidly through the aether". Hovering over the roof of a house, Father Christmas cries 'Open Sesame' to have the roof roll back to disclose the scene within. It was not until the 1870s that the tradition of a nocturnal Santa Claus began to be adopted by ordinary people. The poem The Baby's Stocking, which was syndicated to local newspapers in 1871, took it for granted that readers would be familiar with the custom, and would understand the joke that the stocking might be missed as "Santa Claus wouldn't be looking for anything half so small." On the other hand, when The Preston Guardian published its poem Santa Claus and the Children in 1877 it felt the need to include a long preface explaining exactly who Santa Claus was. Folklorists and antiquarians were not, it seems, familiar with the new local customs and Ronald Hutton notes that in 1879 the newly formed Folk-Lore Society, ignorant of American practices, was still "excitedly trying to discover the source of the new belief". In January 1879 the antiquarian Edwin Lees wrote to Notes and Queries seeking information about an observance he had been told about by 'a country person': "On Christmas Eve, when the inmates of a house in the country retire to bed, all those desirous of a present place a stocking outside the door of their bedroom, with the expectation that some mythical being called Santiclaus will fill the stocking or place something within it before the morning. This is of course well known, and the master of the house does in reality place a Christmas gift secretly in each stocking; but the giggling girls in the morning, when bringing down their presents, affect to say that Santiclaus visited and filled the stockings in the night. From what region of the earth or air this benevolent Santiclaus takes flight I have not been able to ascertain ..." Lees received several responses, linking 'Santiclaus' with the continental traditions of St Nicholas and 'Petit Jesus' (Christkind), but no-one mentioned Father Christmas and no-one was correctly able to identify the American source. By the 1880s the American myth had become firmly established in the popular English imagination, the nocturnal visitor sometimes being known as Santa Claus and sometimes as Father Christmas (often complete with a hooded robe). An 1881 poem imagined a child awaiting a visit from Santa Claus and asking "Will he come like Father Christmas, / Robed in green and beard all white? / Will he come amid the darkness? / Will he come at all tonight?" The French writer Max O'Rell, who evidently thought the custom was established in the England of 1883, explained that Father Christmas "descend par la cheminée, pour remplir de bonbons et de joux les bas que les enfants ont suspendus au pied du lit." [comes down the chimney, to fill with sweets and games the stockings that the children have hung from the foot of the bed]. And in her poem Agnes: A Fairy Tale (1891), Lilian M Bennett treats the two names as interchangeable: "Old Santa Claus is exceedingly kind, / but he won't come to Wide-awakes, you will find... / Father Christmas won't come if he can hear / You're awake. So to bed my bairnies dear." The commercial availability from 1895 of Tom Smith & Co's Santa Claus Surprise Stockings indicates how deeply the American myth had penetrated English society by the end of the century. Representations of the developing character at this period were sometimes labelled 'Santa Claus' and sometimes 'Father Christmas', with a tendency for the latter still to allude to old-style associations with charity and with food and drink, as in several of these Punch illustrations: 20th century Any residual distinctions between Father Christmas and Santa Claus largely faded away in the early years of the new century, and it was reported in 1915, "The majority of children to-day ... do not know of any difference between our old
the federal government. Under the Constitution and various treaties, the legal jurisdiction of the United States includes territories and territorial waters. Legislative Branch One aspect of federal jurisdiction is the extent of legislative power. Under the Constitution, Congress has power to legislate only in the areas that are delegated to it. Under clause 17 Article I Section 8 of the Constitution however, Congress has power to "exercise exclusive Legislation in all cases whatsoever" over the federal district (Washington, D.C.) and other territory ceded to the federal government by the states, such as for military installations. Federal jurisdiction in this sense is important in criminal law because federal law does not supersede state criminal law. Congress has enacted the Assimilative Crimes Act (), which provides that any act that would have been a crime under the laws of the state in which a federal enclave is situated is also a federal crime. As most such enclaves are occupied by the military, military law is especially concerned with these enclaves, especially the issue of establishing who has jurisdiction and what type of jurisdiction. In such areas, the federal government may have proprietary jurisdiction (rights as landowner), concurrent jurisdiction (with federal and state law applicable), or exclusive jurisdiction over the land where an act was committed. Courts-martial involving military members subject to the Uniform Code of Military Justice apply regardless of location. Article Four of the United States Constitution also states that the Congress has the power to enact laws respecting the Territory or other Property belonging to the United States. Federal jurisdiction exists over any territory thus subject to laws enacted by the Congress. Judicial branch The American legal system includes both state courts and federal courts. State courts hear cases involving state law, and such federal laws as are not restricted to hearing in federal courts. Federal courts may only hear cases where federal jurisdiction can be established. Specifically, the court must have both subject-matter jurisdiction over the matter of the claim and personal jurisdiction over the parties. The Federal Courts are courts of limited jurisdiction, meaning that they only exercise powers granted to them by the Constitution and Federal Laws. There are several
Constitution also states that the Congress has the power to enact laws respecting the Territory or other Property belonging to the United States. Federal jurisdiction exists over any territory thus subject to laws enacted by the Congress. Judicial branch The American legal system includes both state courts and federal courts. State courts hear cases involving state law, and such federal laws as are not restricted to hearing in federal courts. Federal courts may only hear cases where federal jurisdiction can be established. Specifically, the court must have both subject-matter jurisdiction over the matter of the claim and personal jurisdiction over the parties. The Federal Courts are courts of limited jurisdiction, meaning that they only exercise powers granted to them by the Constitution and Federal Laws. There are several forms of subject-matter jurisdiction, but the two most commonly appealed to are federal-question jurisdiction and diversity jurisdiction. Federal question jurisdiction is available when the plaintiff raises a claim that arises under the laws, treaties, or Constitution of the United States, as opposed to claims arising under state law. By the "Well-Pleaded Complaint" rule, federal question jurisdiction is not available if the federal issue arises only as a defense to a state-law claim. Diversity jurisdiction, on the other hand, is available regarding state-law claims if every plaintiff is from a different state from every defendant (the requirement for so-called complete or total diversity) and the amount in controversy exceeds $75,000. If a Federal Court has subject matter jurisdiction over one or more of the claims in a case, it has discretion to exercise ancillary jurisdiction over other state law claims. The Supreme Court has "cautioned that ... Court[s] must take great care to 'resist the temptation' to express preferences about [certain types of cases] in the form of jurisdictional rules. Judges must strain to remove the influence of the merits from their jurisdictional rules. The law of jurisdiction must remain apart from the world upon which it operates". Generally, when a case
Naturkunde by Wiley-VCH; since 2014 it has been published by Copernicus Publications. The editors-in-chief are Martin Aberhan, Dieter Korn, and Florian Witzmann (Museum für Naturkunde). Abstracting and indexing The journal is abstracted and indexed in the Science Citation Index Expanded, BIOSIS Previews, The Zoological Record, and Scopus. According to the Journal Citation Reports,
biannual peer-reviewed scientific journal covering palaeontology. It was established in 1998 as the Mitteilungen aus dem Museum für Naturkunde in Berlin, Geowissenschaftliche Reihe and originally published on behalf of the Museum für Naturkunde by Wiley-VCH; since 2014 it has been published by Copernicus Publications. The editors-in-chief are Martin Aberhan, Dieter Korn, and Florian Witzmann
modulation. Yamaha's engineers began adapting Chowning's algorithm for use in a commercial digital synthesizer, adding improvements such as the "key scaling" method to avoid the introduction of distortion that normally occurred in analog systems during frequency modulation, though it would take several years before Yamaha released their FM digital synthesizers. In the 1970s, Yamaha were granted a number of patents, under the company's former name "Nippon Gakki Seizo Kabushiki Kaisha", evolving Chowning's work. Yamaha built the first prototype FM digital synthesizer in 1974. Yamaha eventually commercialized FM synthesis technology with the Yamaha GS-1, the first FM digital synthesizer, released in 1980. FM synthesis was the basis of some of the early generations of digital synthesizers, most notably those from Yamaha, as well as New England Digital Corporation under license from Yamaha. Yamaha's DX7 synthesizer, released in 1983, was ubiquitous throughout the 1980s. Several other models by Yamaha provided variations and evolutions of FM synthesis during that decade. Yamaha had patented its hardware implementation of FM in the 1970s, allowing it to nearly monopolize the market for FM technology until the mid-1990s. Casio developed a related form of synthesis called phase distortion synthesis, used in its CZ range of synthesizers. It had a similar (but slightly differently derived) sound quality to the DX series. Don Buchla implemented FM on his instruments in the mid-1960s, prior to Yamaha's patent. His 158, 258 and 259 dual oscillator modules had a specific FM control voltage input, and the model 208 (Music Easel) had a modulation oscillator hard-wired to allow FM as well as AM of the primary oscillator. These early applications used analog oscillators, and this capability was also followed by other modular synthesizers and portable synthesizers including Minimoog and ARP Odyssey. 1990s–present With the expiration of the Stanford University FM patent in 1995, digital FM synthesis can now be implemented freely by other manufacturers. The FM synthesis patent brought Stanford $20 million before it expired, making it (in 1994) "the second most lucrative licensing agreement in Stanford's history". FM today is mostly found in software-based synths such as FM8 by Native Instruments or Sytrus by Image-Line, but it has also been incorporated into the synthesis repertoire of some modern digital synthesizers, usually coexisting as an option alongside other methods of synthesis such as subtractive, sample-based synthesis, additive synthesis, and other techniques. The degree of complexity of the FM in such hardware synths may vary from simple 2-operator FM, to the highly flexible 6-operator engines of the Korg Kronos and Alesis Fusion, to creation of FM in extensively modular engines such as those in the latest synthesisers by Kurzweil Music Systems. New hardware synths specifically marketed for their FM capabilities disappeared from the market after the release of the Yamaha SY99 and FS1R, and even those marketed their highly powerful FM abilities as counterparts to sample-based synthesis and formant synthesis respectively. However, well-developed FM synthesis options are a feature of Nord Lead synths manufactured by Clavia, the Alesis Fusion range, the Korg Oasys and Kronos and the Modor NF-1. Various other synthesizers offer limited FM abilities to supplement their main engines. In 2016, Korg released the Korg Volca FM, a, 3-voice, 6 operators FM iteration of the Korg Volca series of compact, affordable desktop modules, and Yamaha released the Montage, which combines a 128-voice sample-based engine with a 128-voice FM engine. This iteration of FM is called FM-X, and features 8 operators; each operator has a choice of several basic wave forms, but each wave form has several parameters to adjust its spectrum. The Yamaha Montage was followed by the more affordable Yamaha MODX in 2018, with 64-voice, 8 operators FM-X architecture in addition to a 128-voice sample-based engine. Elektron in 2018 launched the Digitone, an 8-voice, 4 operators FM synth featuring Elektron's renowned sequence engine. FM-X synthesis was introduced with the Yamaha Montage synthesizers in 2016. FM-X uses 8 operators. Each FM-X operator has a set of multi-spectral wave forms to choose from, which means each FM-X operator can be equivalent to a stack of 3 or 4 DX7 FM operators. The list of selectable wave forms includes sine waves, the All1 and All2 wave forms, the Odd1 and Odd2 wave forms, and the Res1 and Res2 wave forms. The sine wave selection works the same
groundbreaking DX7 synthesizer, released in 1983, brought FM to the forefront of synthesis in the mid-1980s. FM synthesis had also become the usual setting for games and software until the mid-nineties. Through sound cards like the AdLib and Sound Blaster, IBM PCs popularized Yamaha chips like OPL2 and OPL3. OPNB was used as main basic sound generator board in SNK Neo Geo operated arcades (MVS) and home console (AES). Later variant in use for Taito Z System. The related OPN2 was used in the Fujitsu FM Towns Marty and Sega Genesis as one of its sound generator chips. Similarly, Sharp X68000 and MSX (Yamaha computer unit) also use FM-based soundchip, OPM. History 1960s–1980s By the mid-20th century, frequency modulation (FM), a means of carrying sound, had been understood for decades and was being used to broadcast radio transmissions. FM synthesis was developed in the 1960s at Stanford University, California, by John Chowning, who was trying to create sounds different from analog synthesis. His algorithm was licensed to Japanese company Yamaha in 1973. The implementation commercialized by Yamaha (US Patent 4018121 Apr 1977 or U.S. Patent 4,018,121) is actually based on phase modulation, but the results end up being equivalent mathematically as both are essentially a special case of quadrature amplitude modulation. Yamaha's engineers began adapting Chowning's algorithm for use in a commercial digital synthesizer, adding improvements such as the "key scaling" method to avoid the introduction of distortion that normally occurred in analog systems during frequency modulation, though it would take several years before Yamaha released their FM digital synthesizers. In the 1970s, Yamaha were granted a number of patents, under the company's former name "Nippon Gakki Seizo Kabushiki Kaisha", evolving Chowning's work. Yamaha built the first prototype FM digital synthesizer in 1974. Yamaha eventually commercialized FM synthesis technology with the Yamaha GS-1, the first FM digital synthesizer, released in 1980. FM synthesis was the basis of some of the early generations of digital synthesizers, most notably those from Yamaha, as well as New England Digital Corporation under license from Yamaha. Yamaha's DX7 synthesizer, released in 1983, was ubiquitous throughout the 1980s. Several other models by Yamaha provided variations and evolutions of FM synthesis during that decade. Yamaha had patented its hardware implementation of FM in the 1970s, allowing it to nearly monopolize the market for FM technology until the mid-1990s. Casio developed a related form of synthesis called phase distortion synthesis, used in its CZ range of synthesizers. It had a similar (but slightly differently derived) sound quality to the DX series. Don Buchla implemented FM on his instruments in the mid-1960s, prior to Yamaha's patent. His 158, 258 and 259 dual oscillator modules had a specific FM control voltage input, and the model 208 (Music Easel) had a modulation oscillator hard-wired to allow FM as well as AM of the primary oscillator. These early applications used analog oscillators, and this capability was also followed by other modular synthesizers and portable synthesizers including Minimoog and ARP Odyssey. 1990s–present With the expiration of the Stanford University FM patent in 1995, digital FM synthesis can now be implemented freely by other manufacturers. The FM synthesis patent brought Stanford $20 million before it expired, making it (in 1994) "the second most lucrative licensing agreement in Stanford's history". FM today is mostly found in software-based synths such as FM8 by Native Instruments or Sytrus by Image-Line, but it has also been incorporated into the synthesis repertoire of some modern digital synthesizers, usually coexisting as an option alongside other methods of synthesis such as subtractive, sample-based synthesis, additive synthesis, and other techniques. The degree of complexity of the FM in such hardware synths may vary from simple 2-operator FM, to the highly flexible 6-operator engines of the Korg Kronos and Alesis Fusion, to creation of FM in extensively modular engines such
Font, Switzerland, a municipality of the canton of Fribourg Font Hill Beach, a beach on the south coast of Jamaica La Font de la Figuera, a municipality in Spain La Font de la Guatlla, a neighborhood in Barcelona, Spain La Font d'En Carròs, a municipality in Spain River Font, a river in Northumberland, England Other Computer font, a digital data file containing a set of graphically related glyphs, characters, or symbols Fountain (archaic usage, also spelled fount) Kerosene lamp font, the
character set in a particular point size, in a particular typeface. Font may also refer to: Religion Holy water font, a vessel for holy water, often seen at the entrance of a church Baptismal font, a container for holy water used in the Christian ceremonial of baptism People with the surname Héctor Font (born 1984), Spanish footballer Pedro Font (1737-1781), Franciscan missionary and diarist Locations Font, Switzerland, a municipality of the canton of Fribourg Font Hill Beach, a beach
fellow mathematician and physicist Carl Friedrich Gauss (with whom he regularly corresponded) he was awarded an honorary doctor degree from the University of Göttingen in March 1811. Around that time, the two men engaged in an epistolary correspondence. However, when they met in person in 1825, they quarrelled; the details are not known. In 1842 Bessel took part in the annual meeting of the British Association for the Advancement of Science in Manchester, accompanied by the geophysicist Georg Adolf Erman and the mathematician Carl Gustav Jacob Jacobi. Bessel married Johanna, the daughter of the chemist and pharmacist Karl Gottfried Hagen who was the uncle of the physician and biologist Hermann August Hagen and the hydraulic engineer Gotthilf Hagen, the latter also Bessel's student and assistant from 1816 to 1818. The physicist Franz Ernst Neumann, Bessel's close companion and colleague, was married to Johanna Hagen's sister Florentine. Neumann introduced Bessel's exacting methods of measurement and data reduction into his mathematico-physical seminar, which he co-directed with Carl Gustav Jacob Jacobi at Königsberg. These exacting methods had a lasting impact upon the work of Neumann's students and upon the Prussian conception of precision in measurement. Bessel had two sons and three daughters. His eldest daughter, Marie, married Georg Adolf Erman, member of the scholar family Erman. One of their sons was the renowned Egyptologist Adolf Erman. After several months of illness Bessel died in March 1846 at his observatory from retroperitoneal fibrosis. Work While the observatory was still in construction Bessel elaborated the Fundamenta Astronomiae based on Bradley's observations. As a preliminary result he produced tables of atmospheric refraction that won him the Lalande Prize from the French Academy of Sciences in 1811. The Königsberg Observatory began operation in 1813. Starting in 1819, Bessel determined the position of over 50,000 stars using a meridian circle from Reichenbach, assisted by some of his qualified students. The most prominent of them was Friedrich Wilhelm Argelander. With this work done, Bessel was able to achieve the feat for which he is best remembered today: he is credited with being the first to use the stellar parallax in calculating the distance to a star. Astronomers had believed for some time that parallax would provide the first accurate measurement of interstellar distances. In 1838 Bessel announced that 61 Cygni had a parallax of 0.314 arcseconds; which, given the diameter of the Earth's orbit, indicated that the star is 10.3 ly away. Given the current measurement of 11.4 ly, Bessel's figure had an error of 9.6%. Thanks to these results astronomers had not only enlarged the vision of the universe well beyond the cosmic magnitude, but after the discovery in 1728 by James Bradley of the aberration of light a second empirical evidence of the Earth's movement was produced. Nearly at the same time Friedrich Georg Wilhelm Struve and Thomas Henderson measured the parallaxes of Vega and Alpha Centauri. As well as helping determine the parallax of 61 Cygni, Bessel's precise measurements using a new meridian circle from Adolf Repsold allowed him to notice deviations in the motions of Sirius and Procyon, which he deduced must be caused by the gravitational attraction of unseen companions. His announcement of Sirius's "dark companion" in 1844 was the first correct claim of a previously unobserved companion by positional measurement, and eventually led to the discovery of Sirius B. Bessel was the first
the position calculated by LeVerrier in 1846. In the second decade of the 19th century while studying the dynamics of 'many-body' gravitational systems, Bessel developed what are now known as Bessel functions. Critical for the solution of certain differential equations, these functions are used throughout both classical and quantum physics. Bessel is responsible for the correction to the formula for the sample variance estimator named in his honour. This is the use of the factor n − 1 in the denominator of the formula, rather than just n. This occurs when the sample mean rather than the population mean is used to centre the data and since the sample mean is a linear combination of the data the residual to the sample mean overcounts the number of degrees of freedom by the number of constraint equations — in this case one. (Also see Bessel's correction). An additional field of work was geodesy. Bessel published a method for solving the main geodesic problem. He was responsible for the survey of East Prussia which joined the Prussian and Russian triangulation networks. He also obtained an estimate of increased accuracy for the Earth's ellipsoid, nowadays called the Bessel ellipsoid, based on several arc measurements. Honors & Prizes Member of the Prussian Academy of Sciences in 1812 Member of the French Academy of Sciences in 1816 Foreign member of the Royal Swedish Academy of Sciences in 1823 Fellow of the Royal Society in 1825 Foreign Honorary Member of the American Academy of Arts and Sciences in 1832 Member of the Royal Institute of the Netherlands, predecessor of the Royal Netherlands Academy of Arts and Sciences in 1827 Member of the American Philosophical Society in 1840 Bessel won the Gold Medal of the Royal Astronomical Society twice, in 1829 and 1841. The largest crater in the Moon's Mare Serenitatis and the main-belt asteroid 1552 Bessel, as well as two fjords in Greenland, Bessel Fjord, NE Greenland and Bessel Fjord, NW Greenland, were named in his honour. Publications Latin German Vol. 1: I. Bewegungen der Körper im Sonnensystem. II. Sphärische Astronomie. Leipzig 1875 Vol. 2: III. Theorie der Instrumente. IV. Stellarastronomie. V. Mathematik. Leipzig 1876 Vol. 3: VI. Geodäsie. VII. Physik. VIII. Verschiedenes – Literatur. Leipzig 1876. See also Carlos Ibáñez e Ibáñez de Ibero – 1st president of the International Committee for Weights and Measures and president of the International Geodetic Association References John Frederick William Herschel, A brief notice of the life, researches, and discoveries of Friedrich Wilhelm Bessel, London: Barclay, 1847 (on-line) Jürgen Hamel: Friedrich Wilhelm Bessel. Leipzig 1984 . Kasimir Ławrynowicz: Friedrich Wilhelm Bessel, 1784–1846. Basel, Boston, Berlin 1995, . Publications of Friedrich Wilhelm Bessel Astrophysics Data System ADS Further reading External links 1784 births 1846 deaths 19th-century German mathematicians Fellows of the American Academy of Arts and Sciences Foreign Members of the Royal Society 19th-century German astronomers German geodesists Honorary members of the Saint Petersburg Academy of Sciences
Africa), a financial regulatory authority Financial Stability Board, an international group of financial authorities First Somali Bank, a bank headquartered in Mogadishu, Somalia Swedbank, formerly FöreningsSparbanken, a retail banking group Computing Fast syndrome-based hash, cryptographic hash functions Front-side bus, a computer communication interface Schools Farmer School of Business, at Miami University in the U.S. state of Ohio Friends School of Baltimore, a Quaker institution in Baltimore Fuqua School of Business, at Duke University in the U.S. state of North Carolina Other FSB (band), a Bulgarian band Bolivian Socialist Falange (Spanish: ), a Bolivian political party Brinjal fruit
Federal Security Service of the Russian Federation ( (FSB), the principal security agency of the Russian Federation and main successor to the defunct Committee for State Security (KGB) of the Soviet Union Banking and finance Federal savings bank, a class of bank in the United States Federation of Small Businesses, a British lobbying group Financial Services Board (South Africa), a financial regulatory authority Financial Stability
was general laughter because of the strange fact that in spite of Fermi's question coming from the clear blue, everybody around the table seemed to understand at once that he was talking about extraterrestrial life." Herbert York wrote, "Somehow (and perhaps it was connected to the prior conversation in the way you describe, even though I do not remember that) we all knew he meant extra-terrestrials." Emil Konopinski merely wrote, "It was his way of putting it that drew laughs from us." Regarding the continuation of the conversation, York wrote in 1984 that Fermi "followed up with a series of calculations on the probability of earthlike planets, the probability of life given an earth, the probability of humans given life, the likely rise and duration of high technology, and so on. He concluded on the basis of such calculations that we ought to have been visited long ago and many times over." Teller remembers that not much came of this conversation "except perhaps a statement that the distances to the next location of living beings may be very great and that, indeed, as far as our galaxy is concerned, we are living somewhere in the sticks, far removed from the metropolitan area of the galactic center." Teller wrote "maybe approximately eight of us sat down together for lunch." Both York and Konopinski remembers that it was just the four of them. Fermi died of cancer in 1954. However, in letters to the three surviving men decades later in 1984, Dr. Eric Jones of Los Alamos was able to partially put the original conversation back together. He informed each of the men that he wished to include a reasonably accurate version or composite in the written proceedings he was putting together for a previously-held conference entitled "Interstellar Migration and the Human Experience". Jones first sent a letter to Edward Teller which included a secondhand account from Hans Mark. Teller responded, and then Jones sent Teller's letter to Herbert York. York responded, and finally, Jones sent both Teller's and York's letters to Emil Konopinski who also responded. Furthermore, Konopinski was able to later identify a cartoon which Jones found as the one involved in the conversation and thereby help to settle the time period as being the summer of 1950. Basis The Fermi paradox is a conflict between the argument that scale and probability seem to favor intelligent life being common in the universe, and the total lack of evidence of intelligent life having ever arisen anywhere other than on Earth. The first aspect of the Fermi paradox is a function of the scale or the large numbers involved: there are an estimated 200–400 billion stars in the Milky Way (2–4 × 1011) and 70 sextillion (7×1022) in the observable universe. Even if intelligent life occurs on only a minuscule percentage of planets around these stars, there might still be a great number of extant civilizations, and if the percentage were high enough it would produce a significant number of extant civilizations in the Milky Way. This assumes the mediocrity principle, by which Earth is a typical planet. The second aspect of the Fermi paradox is the argument of probability: given intelligent life's ability to overcome scarcity, and its tendency to colonize new habitats, it seems possible that at least some civilizations would be technologically advanced, seek out new resources in space, and colonize their own star system and, subsequently, surrounding star systems. Since there is no significant evidence on Earth, or elsewhere in the known universe, of other intelligent life after 13.8 billion years of the universe's history, there is a conflict requiring a resolution. Some examples of possible resolutions are that intelligent life is rarer than is thought, that assumptions about the general development or behavior of intelligent species are flawed, or, more radically, that current scientific understanding of the nature of the universe itself is quite incomplete. The Fermi paradox can be asked in two ways. The first is, "Why are no aliens or their artifacts found here on Earth, or in the Solar System?". If interstellar travel is possible, even the "slow" kind nearly within the reach of Earth technology, then it would only take from 5 million to 50 million years to colonize the galaxy. This is relatively brief on a geological scale, let alone a cosmological one. Since there are many stars older than the Sun, and since intelligent life might have evolved earlier elsewhere, the question then becomes why the galaxy has not been colonized already. Even if colonization is impractical or undesirable to all alien civilizations, large-scale exploration of the galaxy could be possible by probes. These might leave detectable artifacts in the Solar System, such as old probes or evidence of mining activity, but none of these have been observed. The second form of the question is "Why do we see no signs of intelligence elsewhere in the universe?". This version does not assume interstellar travel, but includes other galaxies as well. For distant galaxies, travel times may well explain the lack of alien visits to Earth, but a sufficiently advanced civilization could potentially be observable over a significant fraction of the size of the observable universe. Even if such civilizations are rare, the scale argument indicates they should exist somewhere at some point during the history of the universe, and since they could be detected from far away over a considerable period of time, many more potential sites for their origin are within range of human observation. It is unknown whether the paradox is stronger for the Milky Way galaxy or for the universe as a whole. Drake equation The theories and principles in the Drake equation are closely related to the Fermi paradox. The equation was formulated by Frank Drake in 1961 in an attempt to find a systematic means to evaluate the numerous probabilities involved in the existence of alien life. The equation is presented as follows: Where the variables represent: is the number of technologically advanced civilizations in the Milky Way galaxy; is the rate of formation of stars in the galaxy; is the fraction of those stars with planetary systems; is the number of planets, per solar system, with an environment suitable for organic life; is the fraction of those suitable planets whereon organic life actually appears; is the fraction of habitable planets whereon intelligent life actually appears; is the fraction of civilizations that reach the technological level whereby detectable signals may be dispatched; and is the length of time that those civilizations dispatch their signals. The fundamental problem is that the last four terms () are completely unknown, rendering statistical estimates impossible. The Drake equation has been used by both optimists and pessimists, with wildly differing results. The first scientific meeting on the search for extraterrestrial intelligence (SETI), which had 10 attendees including Frank Drake and Carl Sagan, speculated that the number of civilizations was roughly between 1,000 and 100,000,000 civilizations in the Milky Way galaxy. Conversely, Frank Tipler and John D. Barrow used pessimistic numbers and speculated that the average number of civilizations in a galaxy is much less than one. Almost all arguments involving the Drake equation suffer from the overconfidence effect, a common error of probabilistic reasoning about low-probability events, by guessing specific numbers for likelihoods of events whose mechanism is not yet understood, such as the likelihood of abiogenesis on an Earth-like planet, with current likelihood estimates varying over many hundreds of orders of magnitude. An analysis that takes into account some of the uncertainty associated with this lack of understanding has been carried out by Anders Sandberg, Eric Drexler and Toby Ord, and suggests "a substantial ex ante probability of there being no other intelligent life in our observable universe". Great Filter The Great Filter, in the context of the Fermi paradox, is whatever prevents "dead matter" from giving rise, in time, to expanding, lasting life according to the Kardashev scale. The most commonly agreed-upon low probability event is abiogenesis: a gradual process of increasing complexity of the first self-replicating molecules by a randomly occurring chemical process. Other proposed great filters are the emergence of eukaryotic cells or of meiosis or some of the steps involved in the evolution of a brain capable of complex logical deductions. Astrobiologists Dirk Schulze-Makuch and William Bains, reviewing the history of life on Earth, including convergent evolution, concluded that transitions such as oxygenic photosynthesis, the eukaryotic cell, multicellularity, and tool-using intelligence are likely to occur on any Earth-like planet given enough time. They argue that the Great Filter may be abiogenesis, the rise of technological human-level intelligence, or an inability to settle other worlds because of self-destruction or a lack of resources. Empirical evidence There are two parts of the Fermi paradox that rely on empirical evidence—that there are many potential habitable planets, and that humans see no evidence of life. The first point, that many suitable planets exist, was an assumption in Fermi's time but is now supported by the discovery that exoplanets are common. Current models predict billions of habitable worlds in the Milky Way. The second part of the paradox, that humans see no evidence of extraterrestrial life, is also an active field of scientific research. This includes both efforts to find any indication of life, and efforts specifically directed to finding intelligent life. These searches have been made since 1960, and several are ongoing. Although astronomers do not usually search for extraterrestrials, they have observed phenomena that they could not immediately explain without positing an intelligent civilization as the source. For example, pulsars, when first discovered in 1967, were called little green men (LGM) because of the precise repetition of their pulses. In all cases, explanations with no need for intelligent life have been found for such observations, but the possibility of discovery remains. Proposed examples include asteroid mining that would change the appearance of debris disks around stars, or spectral lines from nuclear waste disposal in stars. Electromagnetic emissions Radio technology and the ability to construct a radio telescope are presumed to be a natural advance for technological species, theoretically creating effects that might be detected over interstellar distances. The careful searching for non-natural radio emissions from space may lead to the detection of alien civilizations. Sensitive alien observers of the Solar System, for example, would note unusually intense radio waves for a G2 star due to Earth's television and telecommunication broadcasts. In the absence of an apparent natural cause, alien observers might infer the existence of a terrestrial civilization. Such signals could be either "accidental" by-products of a civilization, or deliberate attempts to communicate, such as the Arecibo message. It is unclear whether "leakage", as opposed to a deliberate beacon, could be detected by an extraterrestrial civilization. The most sensitive radio telescopes on Earth, , would not be able to detect non-directional radio signals even at a fraction of a light-year away, but other civilizations could hypothetically have much better equipment. A number of astronomers and observatories have attempted and are attempting to detect such evidence, mostly through the SETI organization. Several decades of SETI analysis have not revealed any unusually bright or meaningfully repetitive radio emissions. Direct planetary observation Exoplanet detection and classification is a very active sub-discipline in astronomy, and the first possibly terrestrial planet discovered within a star's habitable zone was found in 2007. New refinements in exoplanet detection methods, and use of existing methods from space (such as the Kepler and TESS missions) are starting to detect and characterize Earth-size planets, and determine if they are within the habitable zones of their stars. Such observational refinements may allow to better gauge how common potentially habitable worlds are. Conjectures about interstellar probes Self-replicating probes could exhaustively explore a galaxy the size of the Milky Way in as little as a million years. If even a single civilization in the Milky Way attempted this, such probes could spread throughout the entire galaxy. Another speculation for contact with an alien probe—one that would be trying to find human beings—is an alien Bracewell probe. Such a hypothetical device would be an autonomous space probe whose purpose is to seek out and communicate with alien civilizations (as opposed to von Neumann probes, which are usually described as purely exploratory). These were proposed as an alternative to carrying a slow speed-of-light dialogue between vastly distant neighbors. Rather than contending with the long delays a radio dialogue would suffer, a probe housing an artificial intelligence would seek out an alien civilization to carry on a close-range communication with the discovered civilization. The findings of such a probe would still have to be transmitted to the home civilization at light speed, but an information-gathering dialogue could be conducted in real time. Direct exploration of the Solar System has yielded no evidence indicating a visit by aliens or their probes. Detailed exploration of areas of the Solar System where resources would be plentiful may yet produce evidence of alien exploration, though the entirety of the Solar System is vast and difficult to investigate. Attempts to signal, attract, or activate hypothetical Bracewell probes in Earth's vicinity have not succeeded. Searches for stellar-scale artifacts In 1959, Freeman Dyson observed that every developing human civilization constantly increases its energy consumption, and, he conjectured, a civilization might try to harness a large part of the energy produced by a star. He proposed that a Dyson sphere could be a possible means: a shell or cloud of objects enclosing a star to absorb and utilize as much radiant energy as possible. Such a feat of astroengineering would drastically alter the observed spectrum of the star involved, changing it at least partly from the normal emission lines of a natural stellar atmosphere to those of black-body radiation, probably with a peak in the infrared. Dyson speculated that advanced alien civilizations might be detected by examining the spectra of stars and searching for such an altered spectrum. There have been some attempts to find evidence of the existence of Dyson spheres that would alter the spectra of their core stars. Direct observation of thousands of galaxies has shown no explicit evidence of artificial construction or modifications. In October 2015, there was some speculation that a
ignoring the external physical universe. It may also be that intelligent alien life develops an "increasing disinterest" in their outside world. Possibly any sufficiently advanced society will develop highly engaging media and entertainment well before the capacity for advanced space travel, with the rate of appeal of these social contrivances being destined, because of their inherent reduced complexity, to overtake any desire for complex, expensive endeavors such as space exploration and communication. Once any sufficiently advanced civilization becomes able to master its environment, and most of its physical needs are met through technology, various "social and entertainment technologies", including virtual reality, are postulated to become the primary drivers and motivations of that civilization. Economic explanations Lack of resources needed to physically spread throughout the galaxy The ability of an alien culture to colonize other star systems is based on the idea that interstellar travel is technologically feasible. While the current understanding of physics rules out the possibility of faster-than-light travel, it appears that there are no major theoretical barriers to the construction of "slow" interstellar ships, even though the engineering required is considerably beyond present capabilities. This idea underlies the concept of the Von Neumann probe and the Bracewell probe as a potential evidence of extraterrestrial intelligence. It is possible, however, that present scientific knowledge cannot properly gauge the feasibility and costs of such interstellar colonization. Theoretical barriers may not yet be understood, and the resources needed may be so great as to make it unlikely that any civilization could afford to attempt it. Even if interstellar travel and colonization are possible, they may be difficult, leading to a colonization model based on percolation theory. Colonization efforts may not occur as an unstoppable rush, but rather as an uneven tendency to "percolate" outwards, within an eventual slowing and termination of the effort given the enormous costs involved and the expectation that colonies will inevitably develop a culture and civilization of their own. Colonization may thus occur in "clusters", with large areas remaining uncolonized at any one time. It is cheaper to transfer information than explore physically If a human-capability machine construct, such as via mind uploading, is possible, and if it is possible to transfer such constructs over vast distances and rebuild them on a remote machine, then it might not make strong economic sense to travel the galaxy by spaceflight. After the first civilization has physically explored or colonized the galaxy, as well as sent such machines for easy exploration, then any subsequent civilizations, after having contacted the first, may find it cheaper, faster, and easier to explore the galaxy through intelligent mind transfers to the machines built by the first civilization, which is cheaper than spaceflight by a factor of 108–1017. However, since a star system needs only one such remote machine, and the communication is most likely highly directed, transmitted at high-frequencies, and at a minimal power to be economical, such signals would be hard to detect from Earth. Discovery of extraterrestrial life is too difficult Humans have not listened properly There are some assumptions that underlie the SETI programs that may cause searchers to miss signals that are present. Extraterrestrials might, for example, transmit signals that have a very high or low data rate, or employ unconventional (in human terms) frequencies, which would make them hard to distinguish from background noise. Signals might be sent from non-main sequence star systems that humans search with lower priority; current programs assume that most alien life will be orbiting Sun-like stars. The greatest challenge is the sheer size of the radio search needed to look for signals (effectively spanning the entire observable universe), the limited amount of resources committed to SETI, and the sensitivity of modern instruments. SETI estimates, for instance, that with a radio telescope as sensitive as the Arecibo Observatory, Earth's television and radio broadcasts would only be detectable at distances up to 0.3 light-years, less than 1/10 the distance to the nearest star. A signal is much easier to detect if it consists of a deliberate, powerful transmission directed at Earth. Such signals could be detected at ranges of hundreds to tens of thousands of light-years distance. However, this means that detectors must be listening to an appropriate range of frequencies, and be in that region of space to which the beam is being sent. Many SETI searches assume that extraterrestrial civilizations will be broadcasting a deliberate signal, like the Arecibo message, in order to be found. Thus, to detect alien civilizations through their radio emissions, Earth observers either need more sensitive instruments or must hope for fortunate circumstances: that the broadband radio emissions of alien radio technology are much stronger than humanity's own; that one of SETI's programs is listening to the correct frequencies from the right regions of space; or that aliens are deliberately sending focused transmissions in Earth's general direction. Humans have not listened for long enough Humanity's ability to detect intelligent extraterrestrial life has existed for only a very brief period—from 1937 onwards, if the invention of the radio telescope is taken as the dividing line—and Homo sapiens is a geologically recent species. The whole period of modern human existence to date is a very brief period on a cosmological scale, and radio transmissions have only been propagated since 1895. Thus, it remains possible that human beings have neither existed long enough nor made themselves sufficiently detectable to be found by extraterrestrial intelligence. Intelligent life may be too far away It may be that non-colonizing technologically capable alien civilizations exist, but that they are simply too far apart for meaningful two-way communication. Sebastian von Hoerner estimated the average duration of civilization at 6,500 years and the average distance between civilizations in the Milky Way at 1,000 light years. If two civilizations are separated by several thousand light-years, it is possible that one or both cultures may become extinct before meaningful dialogue can be established. Human searches may be able to detect their existence, but communication will remain impossible because of distance. It has been suggested that this problem might be ameliorated somewhat if contact and communication is made through a Bracewell probe. In this case at least one partner in the exchange may obtain meaningful information. Alternatively, a civilization may simply broadcast its knowledge, and leave it to the receiver to make what they may of it. This is similar to the transmission of information from ancient civilizations to the present, and humanity has undertaken similar activities like the Arecibo message, which could transfer information about Earth's intelligent species, even if it never yields a response or does not yield a response in time for humanity to receive it. It is possible that observational signatures of self-destroyed civilizations could be detected, depending on the destruction scenario and the timing of human observation relative to it. A related speculation by Sagan and Newman suggests that if other civilizations exist, and are transmitting and exploring, their signals and probes simply have not arrived yet. However, critics have noted that this is unlikely, since it requires that humanity's advancement has occurred at a very special point in time, while the Milky Way is in transition from empty to full. This is a tiny fraction of the lifespan of a galaxy under ordinary assumptions, so the likelihood that humanity is in the midst of this transition is considered low in the paradox. Some SETI skeptics may also believe that humanity is at a very special point of time. Specifically, a transitional period from no space-faring societies to one space-faring society, namely that of human beings. Intelligent life may exist hidden from view Planetary scientist Alan Stern put forward the idea that there could be a number of worlds with subsurface oceans (such as Jupiter's Europa or Saturn's Enceladus). The surface would provide a large degree of protection from such things as cometary impacts and nearby supernovae, as well as creating a situation in which a much broader range of orbits are acceptable. Life, and potentially intelligence and civilization, could evolve. Stern states, "If they have technology, and let's say they're broadcasting, or they have city lights or whatever—we can't see it in any part of the spectrum, except maybe very-low-frequency [radio]." Willingness to communicate Everyone is listening but no one is transmitting Alien civilizations might be technically capable of contacting Earth, but are only listening instead of transmitting. If all, or even most, civilizations act the same way, the galaxy could be full of civilizations eager for contact, but everyone is listening and no one is transmitting. This is the so-called SETI Paradox. The only civilization known, humanity, does not explicitly transmit, except for a few small efforts. Even these efforts, and certainly any attempt to expand them, are controversial. It is not even clear humanity would respond to a detected signal—the official policy within the SETI community is that "[no] response to a signal or other evidence of extraterrestrial intelligence should be sent until appropriate international consultations have taken place". However, given the possible impact of any reply it may be very difficult to obtain any consensus on who would speak and what they would say. Communication is dangerous An alien civilization might feel it is too dangerous to communicate, either for humanity or for them. It is argued that when very different civilizations have met on Earth, the results have often been disastrous for one side or the other, and the same may well apply to interstellar contact. Even contact at a safe distance could lead to infection by computer code or even ideas themselves. Perhaps prudent civilizations actively hide not only from Earth but from everyone, out of fear of other civilizations. Perhaps the Fermi paradox itself—or the alien equivalent of it—is the reason for any civilization to avoid contact with other civilizations, even if no other obstacles existed. From any one civilization's point of view, it would be unlikely for them to be the first ones to make first contact. Therefore, according to this reasoning, it is likely that previous civilizations faced fatal problems with first contact and doing so should be avoided. So perhaps every civilization keeps quiet because of the possibility that there is a real reason for others to do so. In The Dark Forest, a 2008 novel which Discover Magazine calls "a dark answer to the Fermi paradox", Chinese writer Liu Cixin envisions aliens as being paranoid and wanting to kill life because it might be future competition. Other aliens dare not reveal themselves because they might be considered a threat, and they stay quiet as if in a dark forest. Earth is deliberately avoided The zoo hypothesis states that intelligent extraterrestrial life exists and does not contact life on Earth to allow for its natural evolution and development. A variation on the zoo hypothesis is the laboratory hypothesis, where humanity has been or is being subject to experiments, with Earth or the Solar System effectively serving as a laboratory. The zoo hypothesis may break down under the uniformity of motive flaw: all it takes is a single culture or civilization to decide to act contrary to the imperative within humanity's range of detection for it to be abrogated, and the probability of such a violation of hegemony increases with the number of civilizations, tending not towards a 'Galactic Club' with a unified foreign policy with regard to life on Earth but multiple 'Galactic Cliques'. Analysis of the inter-arrival times between civilizations in the galaxy based on common astrobiological assumptions suggests that the initial civilization would have a commanding lead over the later arrivals. As such, it may have established what has been termed the zoo hypothesis through force or as a galactic or universal norm and the resultant "paradox" by a cultural founder effect with or without the continued activity of the founder. It is possible that a civilization advanced enough to travel between solar systems could be actively visiting or observing Earth while remaining undetected or unrecognized. Earth is deliberately isolated (planetarium hypothesis) A related idea to the zoo hypothesis is that, beyond a certain distance, the perceived universe is a simulated reality. The planetarium hypothesis speculates that beings may have created this simulation so that the universe appears to be empty of other life. Alien life is already here unacknowledged A significant fraction of the population believes that at least some UFOs (Unidentified Flying Objects) are spacecraft piloted by aliens. While most of these are unrecognized or mistaken interpretations of mundane phenomena, there are those that remain puzzling even after investigation. The consensus scientific view is that although they may be unexplained, they do not rise to the level of convincing evidence. Similarly, it is theoretically possible that SETI groups are not reporting positive
dharma is preferred, which is broader than the Western term religion. Hence, certain scholars argue that Hinduism lacks dogma and thus a specific notion of "fundamentalism," while other scholars identify several politically active Hindu movements as part of a "Hindu fundamentalist family." Islam Fundamentalism within Islam goes back to the early history of Islam in the 7th century, to the time of the Kharijites. From their essentially political position, they developed extreme doctrines that set them apart from both mainstream Shia and Sunni Muslims. The Kharijites were particularly noted for adopting a radical approach to takfir, whereby they declared other Muslims to be unbelievers and therefore deemed them worthy of death. The Shia and Sunni religious conflicts since the 7th century created an opening for radical ideologues, such as Ali Shariati (1933–77), to merge social revolution with Islamic fundamentalism, as exemplified by the Iranian Revolution in 1979. Islamic fundamentalism has appeared in many countries; the Salafi-Wahhabi version is promoted worldwide and financed by Saudi Arabia, Qatar, and Pakistan. The Iran hostage crisis of 1979–80 marked a major turning point in the use of the term "fundamentalism". The media, in an attempt to explain the ideology of Ayatollah Khomeini and the Iranian Revolution to a Western audience described it as a "fundamentalist version of Islam" by way of analogy to the Christian fundamentalist movement in the U.S. Thus was born the term Islamic fundamentalist, which became a common use of the term in following years. Judaism Jewish fundamentalism has been used to characterize militant religious Zionism, and both Ashkenazi and Sephardic versions of Haredi Judaism. Ian S Lustik has characterized Jewish fundamentalism as "an ultranationalist, eschatologically based, irredentist ideology." Politics Political usage of the term "fundamentalism" has been criticized. It has been used by political groups to berate opponents, using the term flexibly depending on their political interests. According to Judith Nagata, a professor of Asia Research Institute in the National University of Singapore, "The Afghan mujahiddin, locked in combat with the Soviet enemy in the 1980s, could be praised as 'freedom fighters' by their American backers at the time, while the present Taliban, viewed, among other things, as protectors of American enemy Osama bin Laden, are unequivocally 'fundamentalist'." "Fundamentalist" has been used pejoratively to refer to philosophies perceived as literal-minded or carrying a pretense of being the sole source of objective truth, regardless of whether it is usually called a religion. For instance, the Archbishop of Wales has criticized "atheistic fundamentalism" broadly and said "Any kind of fundamentalism, be it Biblical, atheistic or Islamic, is dangerous". He also said, "the new fundamentalism of our age ... leads to the language of expulsion and exclusivity, of extremism and polarisation, and the claim that, because God is on our side, he is not on yours." He claimed it led to situations such as councils calling Christmas "Winterval", schools refusing to put on nativity plays and crosses being removed from chapels. Others have countered that some of these attacks on Christmas are urban legends, not all schools do nativity plays because they choose to perform other traditional plays like A Christmas Carol or The Snow Queen and, because of rising tensions between various religions, opening up public spaces to alternate displays rather than the Nativity scene is an attempt to keep government religion-neutral. In The New Inquisition, Robert Anton Wilson lampoons the members of skeptical organizations such as the Committee for the Scientific Investigation of Claims of the Paranormal as fundamentalist materialists, alleging that they dogmatically dismiss any evidence that conflicts with materialism as hallucination or fraud. In France, during a protestation march against the imposition of restrictions on the wearing of headscarves in state-run schools, a banner labeled the ban as "secular fundamentalism". In the United States, private or cultural intolerance of women wearing the hijab (Islamic headcovering) and political activism by Muslims also has been labeled "secular fundamentalism". The term "fundamentalism" is sometimes applied to signify a counter-cultural fidelity to a principle or set of principles, as in the pejorative term "market fundamentalism", used to imply exaggerated religious-like faith in the ability of unfettered laissez-faire or free-market capitalist economic views or policies to solve economic and social problems. According to economist John Quiggin, the standard features of "economic fundamentalist rhetoric" are "dogmatic" assertions and the claim that anyone who holds contrary views is not a real economist. Retired professor in religious studies Roderick Hindery lists positive qualities attributed to political, economic, or other forms of cultural fundamentalism, including "vitality, enthusiasm, willingness to back up words with actions, and the avoidance of facile compromise" as
on nativity plays and crosses being removed from chapels. Others have countered that some of these attacks on Christmas are urban legends, not all schools do nativity plays because they choose to perform other traditional plays like A Christmas Carol or The Snow Queen and, because of rising tensions between various religions, opening up public spaces to alternate displays rather than the Nativity scene is an attempt to keep government religion-neutral. In The New Inquisition, Robert Anton Wilson lampoons the members of skeptical organizations such as the Committee for the Scientific Investigation of Claims of the Paranormal as fundamentalist materialists, alleging that they dogmatically dismiss any evidence that conflicts with materialism as hallucination or fraud. In France, during a protestation march against the imposition of restrictions on the wearing of headscarves in state-run schools, a banner labeled the ban as "secular fundamentalism". In the United States, private or cultural intolerance of women wearing the hijab (Islamic headcovering) and political activism by Muslims also has been labeled "secular fundamentalism". The term "fundamentalism" is sometimes applied to signify a counter-cultural fidelity to a principle or set of principles, as in the pejorative term "market fundamentalism", used to imply exaggerated religious-like faith in the ability of unfettered laissez-faire or free-market capitalist economic views or policies to solve economic and social problems. According to economist John Quiggin, the standard features of "economic fundamentalist rhetoric" are "dogmatic" assertions and the claim that anyone who holds contrary views is not a real economist. Retired professor in religious studies Roderick Hindery lists positive qualities attributed to political, economic, or other forms of cultural fundamentalism, including "vitality, enthusiasm, willingness to back up words with actions, and the avoidance of facile compromise" as well as negative aspects such as psychological attitudes, occasionally elitist and pessimistic perspectives, and in some cases literalism. Criticism A criticism by Elliot N. Dorff: In order to carry out the fundamentalist program in practice, one would need a perfect understanding of the ancient language of the original text, if indeed the true text can be discerned from among variants. Furthermore, human beings are the ones who transmit this understanding between generations. Even if one wanted to follow the literal word of God, the need for people first to understand that word necessitates human interpretation. Through that process human fallibility is inextricably mixed into the very meaning of the divine word. As a result, it is impossible to follow the indisputable word of God; one can only achieve a human understanding of God's will. Howard Thurman was interviewed in the late 1970s for a BBC feature on religion. He told the interviewer: Influential criticisms of fundamentalism include James Barr's books on Christian fundamentalism and Bassam Tibi's analysis of Islamic fundamentalism. A study at the University of Edinburgh found that of its six measured dimensions of religiosity, "lower intelligence is most associated with higher levels of fundamentalism." Controversy The Associated Press' AP Stylebook recommends that the term fundamentalist not be used for any group that does not apply the term to itself. Many scholars have adopted a similar position. Other scholars, however, use the term in the broader descriptive sense to refer to various groups in various religious traditions including those groups that would object to being classified as fundamentalists, such as in the Fundamentalism Project. Tex Sample asserts that it is a mistake to refer to a Muslim, Jewish, or Christian fundamentalist. Rather, a fundamentalist's fundamentalism is their primary concern, over and above other denominational or faith considerations. See also Authoritarianism Biblical literalism Christian identity Christian Reconstructionism Christian nationalism Creation science Cult Dogmatism Dominionism Evangelical atheism Extremism Formalism (philosophy) Fundamentalism (sculpture) Fundie Historical-grammatical method Importance of religion by country Independent Fundamental Baptist Indoctrination Integrism Islamic extremism Islamic State Islamism Jack Chick Jesus Camp (documentary) Legalism (theology) Market fundamentalism Militant atheism Moral absolutism Mormon fundamentalism Orthodoxy Pentecostalism Political radicalism Reactionary Religious abuse Religious discrimination Religious fanaticism Religious intolerance Religious nationalism Religious persecution Religious segregation Religious terrorism Religious violence Restorationism Ritualism in the Church of England Salafi movement Sect Sectarianism Traditionalist Catholicism True Orthodox church Wahhabism References Sources Appleby, R. Scott, Gabriel Abraham Almond, and Emmanuel Sivan (2003). Strong Religion. Chicago: University of Chicago Press. Armstrong, Karen (2001). The Battle for God: A History of Fundamentalism. New York: Ballantine Books. Brasher, Brenda E. (2001). The Encyclopedia of Fundamentalism. New York: Routledge. Caplan, Lionel. (1987). "Studies in Religious Fundamentalism". London: The MacMillan Press Ltd. Dorff, Elliot N. and Rosett, Arthur, A Living Tree; The Roots and Growth of Jewish Law, SUNY Press, 1988. Keating, Karl (1988). Catholicism and Fundamentalism. San Francisco: Ignatius. Gorenberg, Gershom. (2000). The End of Days: Fundamentalism and the Struggle for the Temple Mount. New York: The Free Press. Hindery, Roderick. 2001. Indoctrination and Self-deception or Free and Critical Thought? Mellen Press: aspects of fundamentalism, pp. 69–74. Lawrence, Bruce B. Defenders of God: The Fundamentalist Revolt against the Modern Age. San Francisco: Harper & Row, 1989. Marsden; George M. (1980). Fundamentalism and American Culture: The Shaping of Twentieth Century Evangelicalism, 1870-1925 Oxford University Press. Marty, Martin E. and R. Scott Appleby (eds.). The Fundamentalism Project. Chicago: University of Chicago Press. (1991). Volume 1: Fundamentalisms Observed. (1993). Volume 2: Fundamentalisms and Society. (1993). Volume 3: Fundamentalisms and the State. (1994). Volume 4: Accounting for Fundamentalisms. (1995). Volume 5: Fundamentalisms Comprehended. Noll, Mark A. A History of Christianity in the United States and Canada. Grand Rapids: Eerdmans, 1992. Ruthven, Malise (2005). "Fundamentalism: The Search for Meaning". Oxford: Oxford University Press. Torrey, R.A. (ed.). (1909). The Fundamentals. Los Angeles: The Bible Institute of Los Angeles (B.I.O.L.A. now Biola University).
in a small town in the 1990s. In addition, the efforts of the young actors were praised. Jan-Olov Andersson at Aftonbladet felt that Dahlström's and Liljeberg's imaginative appearance and interaction was "sensationally credible", and Bo Ludvigsson at Svenska Dagbladet wrote that it was "a warm, strong and confident film about the courage to be human". Ludvigsson also believed that Fucking Åmål, with its storytelling drive, leave and authenticity, was well above most of the Swedish films of recent years. Anders Hansson at Göteborgs-Posten thought that director Moodysson with fairly ordinary elements created "a film with unusual rise". Autostraddle placed it at number one on its "Top 10 Best Lesbian Movies" list. Cultural impact According to Russian singer Lena Katina, producer Ivan Shapovalov was inspired to create the pop duo t.A.T.u. after the release of this film. The track "Show Me Love" is featured in their album 200 km/h in the Wrong Lane. Soundtrack The film's soundtrack was released through Metronome Records and consists of songs in English and Swedish language. Swedish band Broder Daniel, who contributed three English language songs to Fucking Åmål, saw a spike in popularity after the film's release. The band also released an EP titled Fucking Åmål. Fucking Åmål / Musiken Från Filmen Label: Metronome Records Format: CD, compilation Country: Sweden Released: 1998 Awards and nominations |- ! rowspan="24" | 1999 | rowspan="2" | Amanda Award | Best Foreign Feature Film | Fucking Åmål, director Lukas Moodysson | | |- | Best Nordic Feature Film | Lukas Moodysson | | |- | Atlantic Film Festival | Best International Feature | Lukas Moodysson | | |- | rowspan="2" | Berlin International Film Festival | C.I.C.A.E. Award - Recommendation (Panorama) | Lukas Moodysson | | |- | Teddy Award - Best Feature Film | Lukas Moodysson | | |- | British Film Institute Awards | Sutherland Trophy - Special Mention | Lukas Moodysson | | |- | Manaki Brothers Film Festival | Special Jury Award | Ulf Brantås | | |- | Cinema Jove - Valencia International Film Festival | Golden Moon of Valencia | Lukas Moodysson | | |- | European Film Awards | Best Film | Lars Jönsson | | |- | rowspan="2" | Flanders International Film Festival Ghent | Student Jury Award | Lukas Moodysson | | |- | Grand Prix | Lukas Moodysson | | |- | rowspan="5" | Guldbagge Awards | Best Film | Lars Jönsson | | |- | Best Director | Lukas Moodysson | | |- | Best Screenplay | Lukas Moodysson | | |- | Best Actress in a Leading Role | Alexandra DahlströmRebecka Liljeberg | | |- | Best Actor in a Supporting Role | Ralph Carlsson | | |- | rowspan="4" | Karlovy Vary International Film Festival | Audience Award | Lukas Moodysson | | |- | FICC - The Don Quixote Prize | Lukas Moodysson | | |- | Special Jury Prize | Lukas Moodysson | | |- | Crystal Globe | Lukas Moodysson | | |- | rowspan="3" | Kyiv International Film Festival "Molodist" | Best Full-Length Fiction Film | Lukas Moodysson | | |- | FIPRESCI | Lukas Moodysson | | |- | Youth Jury Award - Full-Length Feature Film | Lukas Moodysson | | |- | Verzaubert International Gay & Lesbian Film Festival | Rosebud - Best Film | Lukas Moodysson | | |- ! rowspan="3" | 2000 | Bodil Awards |
scenes were filmed in Åmål, and they were not included in the final version. The main shooting took place in the nearby town of Trollhättan, the location of producing company Film i Väst's studios. Plot Two girls, Agnes and Elin, attend school in the small town of Åmål, Sweden. Elin is outgoing and popular but finds her life unsatisfying and dull. Agnes, by contrast, has no real friends and is constantly depressed. Agnes is in love with Elin but cannot find any way to express it. Agnes's parents worry about their daughter's reclusive life and try to be reassuring. Her mother decides, against Agnes's will, to throw a 16th birthday party for her. Agnes is afraid no one will come. Viktoria, a girl in a wheelchair, shows up and Agnes shouts at her in front of her parents, telling her they are friends only because no one else will talk to them. Agnes, overcome with anger and depression, goes to her room and cries into her pillow shouting that she wishes she were dead, while her father tries to soothe her. Viktoria leaves and Agnes's family eats the food made for the party. Elin arrives at Agnes's house, mainly as an excuse to avoid going to another party, where there will be a boy (Johan, played by Mathias Rust) she wants to avoid. Elin's older sister, Jessica, who comes with her, dares her to kiss Agnes, who is rumoured to be a lesbian. Elin fulfills the dare and then runs out with Jessica, only to soon feel guilty for having humiliated Agnes. After becoming drunk at the other party, Elin gets sick and throws up. Johan tries to help her and ends up professing his love to her. Elin leaves Johan and the party, only to return to Agnes's house to apologize for how she acted earlier. In doing so, Elin stops Agnes from cutting herself. She even manages to persuade Agnes to return with her to the other party. On the way, Elin shares her real feelings about being trapped in Åmål. She asks Agnes about being a lesbian and believes that their problems could be solved by leaving Åmål and going to Stockholm. On impulse, Elin persuades Agnes to hitchhike to Stockholm, which is a five-hour journey by car. They find a driver who agrees to take them, believing them to be sisters who are visiting their grandmother. While sitting in the back seat, they have their first real kiss. The driver sees them and, shocked at the behaviour of the two 'sisters', orders them to leave the car. Elin discovers that she is attracted to Agnes but is afraid to admit it. She proceeds to ignore Agnes and refuses to talk to her. Elin's sister Jessica sees that she is in love and pushes her to figure out who it is. To cover the fact that she is in love with Agnes, Elin lies, pretending to be in love with Johan, and loses her virginity during a short-lived relationship with him. Elin eventually admits her feelings, when, after a climactic scene in a school bathroom, they are forced to 'out' their relationship to the school. The film ends with Elin and Agnes sitting in Elin's bedroom drinking chocolate milk. Elin explains that she often adds too much chocolate until her milk is nearly black. She must fill another glass with milk and mix it and that her sister Jessica often gets mad that she finishes the chocolate. Elin has the last word saying "It makes
best interests by ensuring that customers receive comprehensive, high-quality updates for security vulnerabilities but are not exposed to malicious attacks while the update is being developed." Full disclosure Full disclosure is the policy of publishing information on vulnerabilities without restriction as early as possible, making the information accessible to the general public without restriction. In general, proponents of full disclosure believe that the benefits of freely available vulnerability research outweigh the risks, whereas opponents prefer to limit the distribution. The free availability of vulnerability information allows users and administrators to understand and react to vulnerabilities in their systems, and allows customers to pressure vendors to fix vulnerabilities that vendors may otherwise feel no incentive to solve. There are some fundamental problems with coordinated disclosure that full disclosure can resolve. If customers do not know about vulnerabilities, they cannot request patches, and vendors experience no economic incentive to correct vulnerabilities. Administrators cannot make informed decisions about the risks to their systems, as information on vulnerabilities is restricted. Malicious researchers who also know about the flaw have a long period of time to continue exploiting the flaw. Discovery of a specific flaw or vulnerability is not a mutually exclusive event, multiple researchers with differing motivations can and do discover the same flaws independently. There is no standard way to make vulnerability information available to the public, researchers often use mailing lists dedicated to the topic, academic papers or industry conferences. Non disclosure Non disclosure is the policy that vulnerability information should not be shared, or should only be shared under non-disclosure agreement (either contractually or informally). Common proponents of non-disclosure include commercial exploit vendors, researchers who intend to exploit the flaws they find, and proponents of security through obscurity. Debate Arguments against coordinated disclosure Researchers in favor of coordinated disclosure believe that users cannot make use of advanced knowledge of vulnerabilities without guidance from the vendor, and that the majority is best served by limiting distribution of vulnerability information. Advocates argue that low-skilled attackers can use this information to perform sophisticated attacks that would otherwise be beyond their ability, and the potential benefit does not outweigh the potential harm caused by malevolent actors. Only when the vendor has prepared guidance that even the
disclosure was first raised in the context of locksmithing, in a 19th-century controversy regarding whether weaknesses in lock systems should be kept secret in the locksmithing community, or revealed to the public. Today, there are three major disclosure policies under which most others can be categorized: Non Disclosure, Coordinated Disclosure, and Full Disclosure. The major stakeholders in vulnerability research have their disclosure policies shaped by various motivations, it is not uncommon to observe campaigning, marketing or lobbying for their preferred policy to be adopted and chastising those who dissent. Many prominent security researchers favor full disclosure, whereas most vendors prefer coordinated disclosure. Non disclosure is generally favored by commercial exploit vendors and blackhat hackers. Coordinated vulnerability disclosure Coordinated vulnerability disclosure is a policy under which researchers agree to report vulnerabilities to a coordinating authority, which then reports it to the vendor, tracks fixes and mitigations, and coordinates the disclosure of information with stakeholders including the public. In some cases the coordinating authority is the vendor. The premise of coordinated disclosure is typically that nobody should be informed about a vulnerability until the software vendor says it is time. While there are often exceptions or variations of this policy, distribution must initially be limited and vendors are given privileged access to nonpublic research. The original name for this approach was “responsible disclosure”, based on the essay by Microsoft Security Manager Scott Culp “It's Time to End Information Anarchy” (referring to full disclosure). Microsoft later called for the term to be phased out in favor of “Coordinated Vulnerability Disclosure” (CVD). Although the reasoning varies, many practitioners argue that end-users cannot benefit from access to vulnerability information without guidance or patches from the vendor, so the risks of sharing research with malicious actors is too great for too little benefit. As Microsoft explain, "[Coordinated disclosure] serves everyone's best interests by ensuring that customers receive comprehensive, high-quality updates for security vulnerabilities but are not exposed to malicious attacks while the update is being developed." Full disclosure Full disclosure is the policy of publishing information on vulnerabilities without restriction as early as possible, making the information accessible to the general public without restriction. In general, proponents of full disclosure believe that the benefits of freely available vulnerability research outweigh the risks, whereas opponents prefer to limit the distribution. The free availability of vulnerability information allows users and administrators to understand and react to vulnerabilities in their systems, and allows customers to pressure vendors to fix vulnerabilities that vendors may otherwise feel
spring of 1978, and was first published in Heresies: The Great Goddess Issue (1978), pgs. 8–13. Carol P. Christ also co-edited the classic feminist religion anthologies Weaving the Visions: New Patterns in Feminist Spirituality (1989) and Womanspirit Rising (1979/1989); the latter included her essay Why Women Need the Goddess. New Thought movement New Thought as a movement had no single origin, but was rather propelled along by a number of spiritual thinkers and philosophers and emerged through a variety of religious denominations and churches, particularly the Unity Church, Religious Science, and Church of Divine Science. It was a feminist movement in that most of its teachers and students were women; notable among the founders of the movement were Emma Curtis Hopkins, known as the "teacher of teachers" Myrtle Fillmore, Malinda Cramer, and Nona L. Brooks; with its churches and community centers mostly led by women, from the 1880s to today. Within specific religions Baháʼí Faith Judaism Jewish feminism is a movement that seeks to make the religious, political, and social status of Jewish women equal to that of Jewish men. Feminist movements, with varying approaches and successes, have opened up within all major denominations of Judaism. There are different approaches and versions of feminist theology that exist within the Jewish community. Some of these theologies promote the idea that it is important to have a feminine characterization of God within the siddur (Jewish prayerbook) and service. They challenge the male rabbi teachings that only emphasize God as a man with masculine traits only. In 1976, Rita Gross published the article "Female God Language in a Jewish Context" (Davka Magazine 17), which Jewish scholar and feminist Judith Plaskow considers "probably the first article to deal theoretically with the issue of female God-language in a Jewish context". Gross was Jewish herself at this time. Reconstructionist Rabbi Rebecca Alpert (Reform Judaism, Winter 1991) comments: In 1990 Rabbi Margaret Wenig wrote the sermon, "God Is a Woman and She Is Growing Older", which as of 2011 has been published ten times (three times in German) and preached by rabbis from Australia to California. Rabbi Paula Reimers ("Feminism, Judaism, and God the Mother", Conservative Judaism 46 (1993)) comments: Ahuva Zache affirms that using both masculine and feminine language for God can be a positive thing, but reminds her Reform Jewish readership that God is beyond gender (Is God male, female, both or neither? How should we phrase our prayers in response to God’s gender?, in the Union for Reform Judaism's iTorah, ): These views are highly controversial even within liberal Jewish movements. Orthodox Jews and many Conservative Jews hold that it is wrong to use English female pronouns for God, viewing such usage as an intrusion of modern, western feminist ideology into Jewish tradition. Liberal prayer books tend increasingly to also avoid male-specific words and pronouns, seeking that all references to God in translations be made in gender-neutral language. For example, the UK Liberal movement's Siddur Lev Chadash (1995) does so, as does the UK Reform Movement's Forms of Prayer (2008). In Mishkan T'filah, the American Reform Jewish prayer book released in 2007, references to God as “He” have been removed, and whenever Jewish patriarchs are named (Abraham, Isaac, and Jacob), so also are the matriarchs (Sarah, Rebecca, Rachel, and Leah.) In 2015 the Reform Jewish High Holy Days prayer book Mishkan HaNefesh was released; it is intended as a companion to Mishkan T'filah. It includes a version of the High Holy Days prayer Avinu Malkeinu that refers to God as both "Loving Father" and "Compassionate Mother." Other notable changes are replacing a line from the Reform movement's earlier prayerbook, "Gates of Repentance," that mentioned the joy of a bride and groom specifically, with the line "rejoicing with couples under the chuppah [wedding canopy]", and adding a third, non-gendered option to the way worshippers are called to the Torah, offering “mibeit,” Hebrew for “from the house of,” in addition to the traditional “son of” or “daughter of.” In 2003 The Female Face of God in Auschwitz: A Jewish Feminist Theology of the Holocaust, the first full-length feminist theology of the Holocaust, written by Melissa Raphael, was published. Judith Plaskow’s Standing Again at Sinai: Judaism from a Feminist Perspective (1991), and Rachel Adler’s Engendering Judaism: An Inclusive Theology and Ethics (1999) are the only two full-length Jewish feminist works to focus entirely on theology in general (rather than specific aspects such as Holocaust theology.) This work of feminist theology in regards to Judaism, also contextualizes the other goals of this movement, to re frame historical texts and how they are being taught. It is in addition to how God is being viewed but also the role of women historically and how they are being treated today in a new feminist light. While there is some opposition faced, Jewish communities believing feminism is too Western and does not validate Judaism, there is also the approval of an insider feminist perspective that takes into consideration traditions and modern thought. Christianity Christian feminism is an aspect of feminist theology which seeks to advance and understand the equality of men and women morally, socially, spiritually, and in leadership from a Christian perspective. This is through reformation to be along the lines of feminist thought in regards to their religion. Christian feminists argue that contributions by women in that direction are necessary for a complete understanding of Christianity. These theologians believe that God does not discriminate on the basis of biologically determined characteristics, such as sex and race. Their major issues include the ordination of women, male dominance in Christian marriage, recognition of equal spiritual and moral abilities, reproductive rights, and the search for a feminine or gender-transcendent divine. Christian feminists often draw on the teachings of more historical texts that reinforce that feminism does not go against Christianity but has always been in its texts. Mary Daly grew up an Irish Catholic and all of her education was received through Catholic schools. She has three doctorate degrees, one from St. Mary's College in sacred theology then two from University of Fribourg, Switzerland in theology and philosophy. While in her early works Daly expressed a desire to reform Christianity from the inside, she would later come to the conclusion that Christianity is not able to enact the necessary changes as it is. According to Ford's The Modern Theologians, “Mary Daly has done more than anyone to clarify the problems women have concerning the central core symbolism of Christianity, and its effects on their self-understanding and their relationship to God.” Daly is a prime example of how some feminist theologians come to the conclusion that reclamation and reform are no longer a viable option, that condemnation is the only way out. Rosemary Radford Ruether writes about crucial additional interpretations of how Christian feminist theology is impacted by the world. Ruether grew up Roman Catholic and attended Catholic schools through her sophomore year of high school. She was a classics major at Scripps College, worked for the Delta Ministry in 1965 and taught at Howard University School of Religion from 1966 to 1976. “Rosemary Ruether has written on the question of Christian credibility, with particular attention to ecclesiology and its engagement with church-world conflicts; Jewish-Christian relations…; politics and religion in America; and Feminism". Ruether is said to be one of the major Christian feminist theologians of our time. Her book Sexism and God-Talk is the earliest feminist theological assessment of Christian theology. In the 1970s Phyllis Trible pioneered a Christian feminist approach to biblical scholarship, using the approach of rhetorical criticism developed by her dissertation advisor, James Muilenburg. Christian feminist theology has consistently been critiqued as being focused on primarily white women. This has resulted in the development of movements such as womanist theology, focusing on African American women coined by the works of Alice Walker, Asian feminist theology, and mujerista theology, introduced by Ada Maria Isasi-Diaz concerning Latinas. The term Christian egalitarianism is sometimes preferred by those advocating gender equality and equity among Christians who do not wish to associate themselves with the feminist movement. Women apologists have become more visible in Christian academia. Their defense of the faith is differentiated by a more personal, cultural and listening approach "driven by love". Some advocates of liberation theology will refer to God as "she". This is particularly true of many of the faculty at Union Theological seminary which is a hub of liberation theology and even Senator Rafael Warnock referred to God as "she' in his exegiesis of John 3. See also: Unity Church, Christian Science, Christian theological praxis and Postmodern Christianity. Islam Islamic feminism is a form of feminism concerned with the role of women in Islam. It aims for the full equality of all Muslims, regardless of gender, in public and private life. Islamic feminists advocate women's rights, gender equality, and social justice grounded in an Islamic framework. Although rooted in Islam, the movement's pioneers have also utilized secular and European or non-Muslim feminist discourses and recognize the role of Islamic feminism as part of an integrated global feminist movement. Advocates of the movement seek to highlight the deeply rooted teachings of equality in the Quran and encourage a questioning of the patriarchal interpretation of Islamic teaching through the Qur'an (holy book), hadith (sayings of Muhammad) and sharia (law) towards the creation of a more equal and just society. This is done through the advocation of the female autonomy in line with the guideline of the Qur’an. Feminist theologians like Azizah al-Hibri, professor of law at University of Richmond, founded KARAMAH: Muslim Women Lawyers for Human Rights. Another form of claiming rights in power
over 500 at the "Great Goddess Re-emerging" conference at the University of Santa Cruz in the spring of 1978, and was first published in Heresies: The Great Goddess Issue (1978), pgs. 8–13. Carol P. Christ also co-edited the classic feminist religion anthologies Weaving the Visions: New Patterns in Feminist Spirituality (1989) and Womanspirit Rising (1979/1989); the latter included her essay Why Women Need the Goddess. New Thought movement New Thought as a movement had no single origin, but was rather propelled along by a number of spiritual thinkers and philosophers and emerged through a variety of religious denominations and churches, particularly the Unity Church, Religious Science, and Church of Divine Science. It was a feminist movement in that most of its teachers and students were women; notable among the founders of the movement were Emma Curtis Hopkins, known as the "teacher of teachers" Myrtle Fillmore, Malinda Cramer, and Nona L. Brooks; with its churches and community centers mostly led by women, from the 1880s to today. Within specific religions Baháʼí Faith Judaism Jewish feminism is a movement that seeks to make the religious, political, and social status of Jewish women equal to that of Jewish men. Feminist movements, with varying approaches and successes, have opened up within all major denominations of Judaism. There are different approaches and versions of feminist theology that exist within the Jewish community. Some of these theologies promote the idea that it is important to have a feminine characterization of God within the siddur (Jewish prayerbook) and service. They challenge the male rabbi teachings that only emphasize God as a man with masculine traits only. In 1976, Rita Gross published the article "Female God Language in a Jewish Context" (Davka Magazine 17), which Jewish scholar and feminist Judith Plaskow considers "probably the first article to deal theoretically with the issue of female God-language in a Jewish context". Gross was Jewish herself at this time. Reconstructionist Rabbi Rebecca Alpert (Reform Judaism, Winter 1991) comments: In 1990 Rabbi Margaret Wenig wrote the sermon, "God Is a Woman and She Is Growing Older", which as of 2011 has been published ten times (three times in German) and preached by rabbis from Australia to California. Rabbi Paula Reimers ("Feminism, Judaism, and God the Mother", Conservative Judaism 46 (1993)) comments: Ahuva Zache affirms that using both masculine and feminine language for God can be a positive thing, but reminds her Reform Jewish readership that God is beyond gender (Is God male, female, both or neither? How should we phrase our prayers in response to God’s gender?, in the Union for Reform Judaism's iTorah, ): These views are highly controversial even within liberal Jewish movements. Orthodox Jews and many Conservative Jews hold that it is wrong to use English female pronouns for God, viewing such usage as an intrusion of modern, western feminist ideology into Jewish tradition. Liberal prayer books tend increasingly to also avoid male-specific words and pronouns, seeking that all references to God in translations be made in gender-neutral language. For example, the UK Liberal movement's Siddur Lev Chadash (1995) does so, as does the UK Reform Movement's Forms of Prayer (2008). In Mishkan T'filah, the American Reform Jewish prayer book released in 2007, references to God as “He” have been removed, and whenever Jewish patriarchs are named (Abraham, Isaac, and Jacob), so also are the matriarchs (Sarah, Rebecca, Rachel, and Leah.) In 2015 the Reform Jewish High Holy Days prayer book Mishkan HaNefesh was released; it is intended as a companion to Mishkan T'filah. It includes a version of the High Holy Days prayer Avinu Malkeinu that refers to God as both "Loving Father" and "Compassionate Mother." Other notable changes are replacing a line from the Reform movement's earlier prayerbook, "Gates of Repentance," that mentioned the joy of a bride and groom specifically, with the line "rejoicing with couples under the chuppah [wedding canopy]", and adding a third, non-gendered option to the way worshippers are called to the Torah, offering “mibeit,” Hebrew for “from the house of,” in addition to the traditional “son of” or “daughter of.” In 2003 The Female Face of God in Auschwitz: A Jewish Feminist Theology of the Holocaust, the first full-length feminist theology of the Holocaust, written by Melissa Raphael, was published. Judith Plaskow’s Standing Again at Sinai: Judaism from a Feminist Perspective (1991), and Rachel Adler’s Engendering Judaism: An Inclusive Theology and Ethics (1999) are the only two full-length Jewish feminist works to focus entirely on theology in general (rather than specific aspects such as Holocaust theology.) This work of feminist theology in regards to Judaism, also contextualizes the other goals of this movement, to re frame historical texts and how they are being taught. It is in addition to how God is being viewed but also the role of women historically and how they are being treated today in a new feminist light. While there is some opposition faced, Jewish communities believing feminism is too Western and does not validate Judaism, there is also the approval of an insider feminist perspective that takes into consideration traditions and modern thought. Christianity Christian feminism is an aspect of feminist theology which seeks to advance and understand the equality of men and women morally, socially, spiritually, and in leadership from a Christian perspective. This is through reformation to be along the lines of feminist thought in regards to their religion. Christian feminists argue that contributions by women in that direction are necessary for a complete understanding of Christianity. These theologians believe that God does not discriminate on the basis of biologically determined characteristics, such as sex and race. Their major issues include the ordination of women, male dominance in Christian marriage, recognition of equal spiritual and moral abilities, reproductive rights, and the search for a feminine or gender-transcendent divine. Christian feminists often draw on the teachings of more historical texts that reinforce that feminism does not go against Christianity but has always been in its texts. Mary Daly grew up an Irish Catholic and all of her education was received through Catholic schools. She has three doctorate degrees, one from St. Mary's College in sacred theology then two from University of Fribourg, Switzerland in theology and philosophy. While in her early works Daly expressed a desire to reform Christianity from the inside, she would later come to the conclusion that Christianity is not able to enact the necessary changes as it is. According to Ford's The Modern Theologians, “Mary Daly has done more than anyone to clarify the problems women have concerning the central core symbolism of Christianity, and its effects on their self-understanding and their relationship to God.” Daly is a prime example of how some feminist theologians come to the conclusion that reclamation and reform are no longer a viable option, that condemnation is the only way out. Rosemary Radford Ruether writes about crucial additional interpretations of how Christian feminist theology is impacted by the world. Ruether grew up Roman Catholic and attended Catholic schools through her sophomore year of high school. She was a classics major at Scripps College, worked for the Delta Ministry in 1965 and taught at Howard University School of Religion from 1966 to 1976. “Rosemary Ruether has written on the question of Christian credibility, with particular attention to ecclesiology and its engagement with church-world conflicts; Jewish-Christian relations…; politics and religion in America; and Feminism". Ruether is said to be one of the major Christian feminist theologians of our time. Her book Sexism and God-Talk is the earliest feminist theological assessment of Christian theology. In the 1970s Phyllis Trible pioneered a Christian feminist approach to biblical scholarship, using the approach of rhetorical criticism developed by her dissertation advisor, James Muilenburg. Christian feminist theology has consistently been critiqued as being focused on primarily white women. This has resulted in the development of movements such as womanist theology, focusing on African American women coined by the works of Alice Walker, Asian feminist theology, and mujerista theology, introduced by Ada Maria Isasi-Diaz concerning Latinas. The term Christian egalitarianism is sometimes preferred by those advocating gender equality and equity among Christians who do not wish to associate themselves with the feminist movement. Women apologists have become more visible in Christian academia. Their defense of the faith is differentiated by a more personal, cultural and listening approach "driven by love". Some advocates of liberation theology will refer to God as "she". This is particularly true of many of the faculty at Union Theological seminary which is a hub of liberation
Francis Scott Key High School, in Union Bridge, Maryland, United States Freiwillige Selbstkontrolle der Filmwirtschaft, a German movie rating organization Frequency-shift keying Friends
Key Bridge (disambiguation) Francis Scott Key High School, in Union Bridge, Maryland, United States Freiwillige Selbstkontrolle der Filmwirtschaft, a German movie rating organization Frequency-shift keying Friends School Kamusinga, in Kenya Kosovo Security Force,
flag to determine which is produced. For example, BBEdit has a BBEdit Lite edition which has fewer features. XnView is available free of charge for personal use but must be licensed for commercial use. The free version may be advertising supported, as was the case with the DivX. Ad-supported software and free registerware also bear resemblances to freeware. Ad-supported software does not ask for payment for a license, but displays advertising to either compensate for development costs or as a means of income. Registerware forces the user to subscribe with the publisher before being able to use the product. While commercial products may require registration to ensure licensed use, free registerware do not. Creative Commons licenses The Creative Commons offer licenses, applicable to all by copyright governed works including software, which allow a developer to define "freeware" in a legal safe and internationally law domains respecting way. The typical freeware use case "share" can be further refined with Creative Commons restriction clauses like non-commerciality (CC BY-NC) or no-derivatives (CC BY-ND), see description of licenses. There are several usage examples, for instance The White Chamber, Mari0 or Assault Cube, all freeware by being CC BY-NC-SA licensed: free sharing allowed, selling not. Restrictions Freeware cannot economically rely on commercial promotion. In May 2015 advertising freeware on Google AdWords was restricted to "authoritative source"[s]. Thus web sites and blogs are the primary resource for information on which freeware is available, useful, and is not malware. However,
distribute, modify, make derivative works, or reverse engineer the software. The software license may impose additional usage restrictions; for instance, the license may be "free for private, non-commercial use" only, or usage over a network, on a server, or in combination with certain other software packages may be prohibited. Restrictions may be required by license or enforced by the software itself; e.g., the package may fail to function over a network. Relation to other forms of software licensing The U.S. Department of Defense (DoD) defines "open source software" (i.e., free software or free and open-source software), as distinct from "freeware" or "shareware"; it is software where "the Government does not have access to the original source code". The "free" in "freeware" refers to the price of the software, which is typically proprietary and distributed without source code. By contrast, the "free" in "free software" refers to freedoms granted users under the software license (for example, to run the program for any purpose, modify and redistribute the program to others), and such software may be sold at a price. According to the Free Software Foundation (FSF), "freeware" is a loosely defined category and it has no clear accepted definition, although FSF asks that free software (libre; unrestricted and with source code available) should not be called freeware. In contrast the Oxford English Dictionary simply characterizes freeware as being "available free of charge (sometimes with the suggestion that users should make a donation to the provider)". Some freeware products are released alongside paid versions that either have more features or less restrictive licensing terms. This approach is known as freemium ("free" + "premium"), since the free version is intended as a promotion for the premium version. The two often share a code base, using a compiler flag to determine which is produced. For example, BBEdit has a BBEdit Lite edition which has fewer features. XnView is available free of charge for personal use but must be licensed for commercial use. The free version may be advertising supported, as was the case with the DivX. Ad-supported software and free registerware also bear resemblances to freeware. Ad-supported software does not ask for payment for a license, but displays advertising to either compensate for development costs or as a means of income. Registerware forces the user to subscribe with the publisher before being able to use the product. While commercial products may require registration to ensure licensed use, free registerware do not. Creative Commons licenses The Creative Commons offer licenses, applicable to all by copyright governed works including software, which allow a developer to define "freeware" in a legal safe and internationally law domains respecting way. The typical freeware use case "share" can be further refined with Creative Commons restriction clauses like non-commerciality (CC
that there was no concept of a round Earth in ancient Chinese astronomy: The model of an egg was often used by Chinese astronomers such as Zhang Heng (78–139 AD) to describe the heavens as spherical: This analogy with a curved egg led some modern historians, notably Joseph Needham, to conjecture that Chinese astronomers were, after all, aware of the Earth's sphericity. The egg reference, however, was rather meant to clarify the relative position of the flat Earth to the heavens: Further examples cited by Needham supposed to demonstrate dissenting voices from the ancient Chinese consensus actually refer without exception to the Earth being square, not to it being flat. Accordingly, the 13th-century scholar Li Ye, who argued that the movements of the round heaven would be hindered by a square Earth, did not advocate a spherical Earth, but rather that its edge should be rounded off so as to be circular. However, Needham disagrees, affirming that Li Ye believed the Earth to be spherical, similar in shape to the heavens but much smaller. This was preconceived by the 4th-century scholar Yu Xi, who argued for the infinity of outer space surrounding the Earth and that the latter could be either square or round, in accordance to the shape of the heavens. When Chinese geographers of the 17th century, influenced by European cartography and astronomy, showed the Earth as a sphere that could be circumnavigated by sailing around the globe, they did so with formulaic terminology previously used by Zhang Heng to describe the spherical shape of the Sun and Moon (i.e. that they were as round as a crossbow bullet). As noted in the book Huainanzi, in the 2nd century BC, Chinese astronomers effectively inverted Eratosthenes' calculation of the curvature of the Earth to calculate the height of the Sun above the Earth. By assuming the Earth was flat, they arrived at a distance of (approximately ). The Zhoubi Suanjing also discusses how to determine the distance of the Sun by measuring the length of noontime shadows at different latitudes, a method similar to Eratosthenes' measurement of the circumference of the Earth, but the Zhoubi Suanjing assumes that the Earth is flat. Alternate or mixed theories Greece: spherical Earth Pythagoras in the 6th century BC and Parmenides in the 5th century stated that the Earth is spherical, and this view spread rapidly in the Greek world. Around 330 BC, Aristotle maintained on the basis of physical theory and observational evidence that the Earth was spherical, and reported an estimate of its circumference. The Earth's circumference was first determined around 240 BC by Eratosthenes. By the 2nd century AD, Ptolemy had derived his maps from a globe and developed the system of latitude, longitude, and climes. His Almagest was written in Greek and only translated into Latin in the 11th century from Arabic translations. Lucretius (1st century BC) opposed the concept of a spherical Earth, because he considered that an infinite universe had no center towards which heavy bodies would tend. Thus, he thought the idea of animals walking around topsy-turvy under the Earth was absurd. By the 1st century AD, Pliny the Elder was in a position to claim that everyone agreed on the spherical shape of Earth, though disputes continued regarding the nature of the antipodes, and how it is possible to keep the ocean in a curved shape. South Asia The Vedic texts depict the cosmos in many ways. One of the earliest Indian cosmological texts picture the Earth as one of a stack of flat disks. In the Vedic texts, Dyaus (heaven) and Prithvi (Earth) are compared to wheels on an axle, yielding a flat model. They are also described as bowls or leather bags, yielding a concave model. According to Macdonell: "the conception of the Earth being a disc surrounded by an ocean does not appear in the Samhitas. But it was naturally regarded as circular, being compared with a wheel (10.89) and expressly called circular (parimandala) in the Shatapatha Brahmana." By about the 5th century CE, the siddhanta astronomy texts of South Asia, particularly of Aryabhata, assume a spherical Earth as they develop mathematical methods for quantitative astronomy for calendar and time keeping. The medieval Indian texts called the Puranas describe the Earth as a flat-bottomed, circular disk with concentric oceans and continents. This general scheme is present not only in the Hindu cosmologies, but also in Buddhist and Jain cosmologies of South Asia. However, some Puranas include other models. The fifth canto of the Bhagavata Purana, for example, includes sections that describe the Earth both as flat and spherical. Early Christian Church During the early period of the Christian Church, the spherical view continued to be widely held, with some notable exceptions. Athenagoras, an eastern Christian writing around the year 175 CE, said that the Earth was spherical. Methodius (c. 290 AD), an eastern Christian writing against "the theory of the Chaldeans and the Egyptians" said: "Let us first lay bare ... the theory of the Chaldeans and the Egyptians. They say that the circumference of the universe is likened to the turnings of a well-rounded globe, the Earth being a central point. They say that since its outline is spherical, ... the Earth should be the center of the universe, around which the heaven is whirling." Lactantius, a western Christian writer and advisor to the first Christian Roman Emperor, Constantine, writing sometime between 304 and 313 CE, ridiculed the notion of antipodes and the philosophers who fancied that "the universe is round like a ball. They also thought that heaven revolves in accordance with the motion of the heavenly bodies. ... For that reason, they constructed brass globes, as though after the figure of the universe." Arnobius, another eastern Christian writing sometime around 305 CE, described the round Earth: "In the first place, indeed, the world itself is neither right nor left. It has neither upper nor lower regions, nor front nor back. For whatever is round and bounded on every side by the circumference of a solid sphere, has no beginning or end ..." The influential theologian and philosopher Saint Augustine, one of the four Great Church Fathers of the Western Church, similarly objected to the "fable" of antipodes: Some historians do not view Augustine's scriptural commentaries as endorsing any particular cosmological model, but while the view that Augustine shared the common view of his contemporaries that the Earth is spherical, in line with his endorsement of science in De Genesi ad litteram, is still occasionally challenged, most scholars agree that "Augustine’s acceptance of the earth’s spherical shape [is] a well-established fact". Diodorus of Tarsus, a leading figure in the School of Antioch and mentor of John Chrysostom, may have argued for a flat Earth; however, Diodorus' opinion on the matter is known only from a later criticism. Chrysostom, one of the four Great Church Fathers of the Eastern Church and Archbishop of Constantinople, explicitly espoused the idea, based on scripture, that the Earth floats miraculously on the water beneath the firmament. Athanasius the Great, Church Father and Patriarch of Alexandria, expressed a similar view in Against the Heathen. Christian Topography (547) by the Alexandrian
Vedic texts, Dyaus (heaven) and Prithvi (Earth) are compared to wheels on an axle, yielding a flat model. They are also described as bowls or leather bags, yielding a concave model. According to Macdonell: "the conception of the Earth being a disc surrounded by an ocean does not appear in the Samhitas. But it was naturally regarded as circular, being compared with a wheel (10.89) and expressly called circular (parimandala) in the Shatapatha Brahmana." By about the 5th century CE, the siddhanta astronomy texts of South Asia, particularly of Aryabhata, assume a spherical Earth as they develop mathematical methods for quantitative astronomy for calendar and time keeping. The medieval Indian texts called the Puranas describe the Earth as a flat-bottomed, circular disk with concentric oceans and continents. This general scheme is present not only in the Hindu cosmologies, but also in Buddhist and Jain cosmologies of South Asia. However, some Puranas include other models. The fifth canto of the Bhagavata Purana, for example, includes sections that describe the Earth both as flat and spherical. Early Christian Church During the early period of the Christian Church, the spherical view continued to be widely held, with some notable exceptions. Athenagoras, an eastern Christian writing around the year 175 CE, said that the Earth was spherical. Methodius (c. 290 AD), an eastern Christian writing against "the theory of the Chaldeans and the Egyptians" said: "Let us first lay bare ... the theory of the Chaldeans and the Egyptians. They say that the circumference of the universe is likened to the turnings of a well-rounded globe, the Earth being a central point. They say that since its outline is spherical, ... the Earth should be the center of the universe, around which the heaven is whirling." Lactantius, a western Christian writer and advisor to the first Christian Roman Emperor, Constantine, writing sometime between 304 and 313 CE, ridiculed the notion of antipodes and the philosophers who fancied that "the universe is round like a ball. They also thought that heaven revolves in accordance with the motion of the heavenly bodies. ... For that reason, they constructed brass globes, as though after the figure of the universe." Arnobius, another eastern Christian writing sometime around 305 CE, described the round Earth: "In the first place, indeed, the world itself is neither right nor left. It has neither upper nor lower regions, nor front nor back. For whatever is round and bounded on every side by the circumference of a solid sphere, has no beginning or end ..." The influential theologian and philosopher Saint Augustine, one of the four Great Church Fathers of the Western Church, similarly objected to the "fable" of antipodes: Some historians do not view Augustine's scriptural commentaries as endorsing any particular cosmological model, but while the view that Augustine shared the common view of his contemporaries that the Earth is spherical, in line with his endorsement of science in De Genesi ad litteram, is still occasionally challenged, most scholars agree that "Augustine’s acceptance of the earth’s spherical shape [is] a well-established fact". Diodorus of Tarsus, a leading figure in the School of Antioch and mentor of John Chrysostom, may have argued for a flat Earth; however, Diodorus' opinion on the matter is known only from a later criticism. Chrysostom, one of the four Great Church Fathers of the Eastern Church and Archbishop of Constantinople, explicitly espoused the idea, based on scripture, that the Earth floats miraculously on the water beneath the firmament. Athanasius the Great, Church Father and Patriarch of Alexandria, expressed a similar view in Against the Heathen. Christian Topography (547) by the Alexandrian monk Cosmas Indicopleustes, who had traveled as far as Sri Lanka and the source of the Blue Nile, is now widely considered the most valuable geographical document of the early medieval age, although it received relatively little attention from contemporaries. In it, the author repeatedly expounds the doctrine that the universe consists of only two places, the Earth below the firmament and heaven above it. Carefully drawing on arguments from scripture, he describes the Earth as a rectangle, 400 days' journey long by 200 wide, surrounded by four oceans and enclosed by four massive walls which support the firmament. The spherical Earth theory is contemptuously dismissed as "pagan". Severian, Bishop of Gabala ( 408), wrote that the Earth is flat and the Sun does not pass under it in the night, but "travels through the northern parts as if hidden by a wall". Basil of Caesarea (329–379) argued that the matter was theologically irrelevant. Europe: Early Middle Ages Early medieval Christian writers in the early Middle Ages felt little urge to assume flatness of the Earth, though they had fuzzy impressions of the writings of Ptolemy and Aristotle, relying more on Pliny. With the end of the Western Roman Empire, Western Europe entered the Middle Ages with great difficulties that affected the continent's intellectual production. Most scientific treatises of classical antiquity (in Greek) were unavailable, leaving only simplified summaries and compilations. In contrast, the Eastern Roman Empire did not fall, and it preserved the learning. Still, many textbooks of the Early Middle Ages supported the sphericity of the Earth in the western part of Europe. Europe's view of the shape of the Earth in Late Antiquity and the Early Middle Ages may be best expressed by the writings of early Christian scholars: Bishop Isidore of Seville (560–636) taught in his widely read encyclopedia, the Etymologies, diverse views such as that the Earth "resembles a wheel" resembling Anaximander in language and the map that he provided. This was widely interpreted as referring to a disc-shaped Earth. An illustration from Isidore's De Natura Rerum shows the five zones of the Earth as adjacent circles. Some have concluded that he thought the Arctic and Antarctic zones were adjacent to each other. He did not admit the possibility of antipodes, which he took to mean people dwelling on the opposite side of the Earth, considering them legendary and noting that there was no evidence for their existence. Isidore's T and O map, which was seen as representing a small part of a spherical Earth, continued to be used by authors through the Middle Ages, e.g. the 9th-century bishop Rabanus Maurus, who compared the habitable part of the northern hemisphere (Aristotle's northern temperate clime) with a wheel. At the same time, Isidore's works also gave the views of sphericity, for example, in chapter 28 of De Natura Rerum, Isidore claims that the Sun orbits the Earth and illuminates the other side when it is night on this side. See French translation of De Natura Rerum. In his other work Etymologies, there are also affirmations that the sphere of the sky has Earth in its center and the sky being equally distant on all sides. Other researchers have argued these points as well. "The work remained unsurpassed until the thirteenth century and was regarded as the summit of all knowledge. It became an essential part of European medieval culture. Soon after the invention of typography it appeared many times in print." However, "The Scholastics – later medieval philosophers, theologians, and scientists – were helped by the Arabic translators and commentaries, but they hardly needed to struggle against a flat-Earth legacy from the early middle ages (500–1050). Early medieval writers often had fuzzy and imprecise impressions of both Ptolemy and Aristotle and relied more on Pliny, but they felt (with one exception), little urge to assume flatness." St Vergilius of Salzburg (c. 700–784), in the middle of the 8th century, discussed or taught some geographical or cosmographical ideas that St Boniface found sufficiently objectionable that he complained about them to Pope Zachary. The only surviving record of the incident is contained in Zachary's reply, dated 748, where he wrote: Some authorities have suggested that the sphericity of the Earth was among the aspects of Vergilius's teachings that Boniface and Zachary considered objectionable. Others have considered this unlikely, and take the wording of Zachary's response to indicate at most an objection to belief in the existence of humans living in the antipodes. In any case, there is no record of any further action having been taken against Vergilius. He was later appointed bishop of Salzburg and was canonised in the 13th century. A possible non-literary but graphic indication that people in the Middle Ages believed that the Earth (or perhaps the world) was a sphere is the use of the orb (globus cruciger) in the regalia of many kingdoms and of the Holy Roman Empire. It is attested from the time of the Christian late-Roman emperor Theodosius II (423) throughout the Middle Ages; the Reichsapfel was used in 1191 at the coronation of emperor Henry VI. However the word means "circle", and there is no record of a globe as a representation of the Earth since ancient times in the west until that of Martin Behaim in 1492. Additionally it could well be a representation of the entire "world" or cosmos. A recent study of medieval concepts of the sphericity of the Earth noted that "since the eighth century, no cosmographer worthy of note has called into question the sphericity of the Earth". However, the work of these intellectuals may not have had significant influence on public opinion, and it is difficult to tell what the wider population may have thought of the shape of the Earth, if they considered the question at all. Europe: Late Middle Ages Hermannus Contractus (1013–1054) was among the earliest Christian scholars to estimate the circumference of Earth with Eratosthenes' method. St. Thomas Aquinas (1225–1274), the most widely taught theologian of the Middle Ages, believed in a spherical Earth and took for granted that his readers also knew the Earth is round. Lectures in the medieval universities commonly advanced evidence in favor of the idea that the Earth was a sphere. Jill Tattersall shows that in many vernacular works in 12th- and 13th-century French texts the Earth was considered "round like a table" rather than "round like an apple". "In virtually all the examples quoted ... from epics and from non-'historical' romances (that is, works of a less learned character) the actual form of words used suggests strongly a circle rather than a sphere", though she notes that even in these works the language is ambiguous. Portuguese navigation down and around the coast of Africa in the latter half of the 1400s gave wide-scale observational evidence for Earth's sphericity. In these explorations, the Sun position moved more northward the further south the explorers travelled. Its position directly overhead at noon gave evidence for crossing the equator. These apparent solar motions in detail were more consistent with north–south curvature and a distant Sun, than with any flat-Earth explanation. The ultimate demonstration came when
Ottoman Turkish, Chagatai, Dobhashi and Urdu, which are regarded as "structural daughter languages" of Persian. Classical Persian "Classical Persian" loosely refers to the standardized language of medieval Persia used in literature and poetry. This is the language of the 10th to 12th centuries, which continued to be used as literary language and lingua franca under the "Persianized" Turko-Mongol dynasties during the 12th to 15th centuries, and under restored Persian rule during the 16th to 19th centuries. Persian during this time served as lingua franca of Greater Persia and of much of the Indian subcontinent. It was also the official and cultural language of many Islamic dynasties, including the Samanids, Buyids, Tahirids, Ziyarids, the Mughal Empire, Timurids, Ghaznavids, Karakhanids, Seljuqs, Khwarazmians, the Sultanate of Rum, Turkmen beyliks of Anatolia, Delhi Sultanate, the Shirvanshahs, Safavids, Afsharids, Zands, Qajars, Khanate of Bukhara, Khanate of Kokand, Emirate of Bukhara, Khanate of Khiva, Ottomans and also many Mughal successors such as the Nizam of Hyderabad. Persian was the only non-European language known and used by Marco Polo at the Court of Kublai Khan and in his journeys through China. Use in Asia Minor A branch of the Seljuks, the Sultanate of Rum, took Persian language, art and letters to Anatolia. They adopted the Persian language as the official language of the empire. The Ottomans, who can roughly be seen as their eventual successors, took this tradition over. Persian was the official court language of the empire, and for some time, the official language of the empire. The educated and noble class of the Ottoman Empire all spoke Persian, such as Sultan Selim I, despite being Safavid Iran's archrival and a staunch opposer of Shia Islam. It was a major literary language in the empire. Some of the noted earlier Persian works during the Ottoman rule are Idris Bidlisi's Hasht Bihisht, which began in 1502 and covered the reign of the first eight Ottoman rulers, and the Salim-Namah, a glorification of Selim I. After a period of several centuries, Ottoman Turkish (which was highly Persianised itself) had developed towards a fully accepted language of literature, which was even able to satisfy the demands of a scientific presentation. However, the number of Persian and Arabic loanwords contained in those works increased at times up to 88%. In the Ottoman Empire, Persian was used for diplomacy, poetry, historiographical works, literary works, and was taught in state schools.<ref> Learning to Read in the Late Ottoman Empire and the Early Turkish Republic, B. Fortna, page 50;"Although in the late Ottoman period Persian was taught in the state schools...." Persian Historiography and Geography, Bertold Spuler, page 68, "On the whole, the circumstance in Turkey took a similar course: in Anatolia, the Persian language had played a significant role as the carrier of civilization.[..]..where it was at time, to some extent, the language of diplomacy...However Persian maintained its position also during the early Ottoman period in the composition of histories and even Sultan Salim I, a bitter enemy of Iran and the Shi'ites, wrote poetry in Persian. Besides some poetical adaptations, the most important historiographical works are: Idris Bidlisi's flowery "Hasht Bihist", or Seven Paradises, begun in 1502 by the request of Sultan Bayazid II and covering the first eight Ottoman rulers.." Picturing History at the Ottoman Court, Emine Fetvacı, page 31, "Persian literature, and belles-lettres in particular, were part of the curriculum: a Persian dictionary, a manual on prose composition; and Sa'dis "Gulistan", one of the classics of Persian poetry, were borrowed. All these title would be appropriate in the religious and cultural education of the newly converted young men. Persian Historiography: History of Persian Literature A, Volume 10, edited by Ehsan Yarshater, Charles Melville, page 437;"...Persian held a privileged place in Ottoman letters. Persian historical literature was first patronized during the reign of Mehmed II and continued unabated until the end of the 16th century.</ref> Use in South Asia The Persian language influenced the formation of many modern languages in West Asia, Europe, Central Asia, and South Asia. Following the Turko-Persian Ghaznavid conquest of South Asia, Persian was firstly introduced in the region by Turkic Central Asians. The basis in general for the introduction of Persian language into the subcontinent was set, from its earliest days, by various Persianized Central Asian Turkic and Afghan dynasties. For five centuries prior to the British colonization, Persian was widely used as a second language in the Indian subcontinent. It took prominence as the language of culture and education in several Muslim courts on the subcontinent and became the sole "official language" under the Mughal emperors. The Bengal Sultanate witnessed an influx of Persian scholars, lawyers, teachers and clerics. Thousands of Persian books and manuscripts were published in Bengal. The period of the reign of Sultan Ghiyathuddin Azam Shah, is described as the "golden age of Persian literature in Bengal". Its stature was illustrated by the Sultan's own correspondence and collaboration with the Persian poet Hafez; a poem which can be found in the Divan of Hafez today. A Bengali dialect emerged amongst the common Bengali Muslim folk, based on a Persian model and known as Dobhashi; meaning mixed language. Dobhashi Bengali was patronised and given official status under the Sultans of Bengal, and was a popular literary form used by Bengalis during the pre-colonial period, irrespective of their religion. Following the defeat of the Hindu Shahi dynasty, classical Persian was established as a courtly language in the region during the late 10th century under Ghaznavid rule over the northwestern frontier of the subcontinent. Employed by Punjabis in literature, Persian achieved prominence in the region during the following centuries. Persian continued to act as a courtly language for various empires in Punjab through the early 19th century serving finally as the official state language of the Sikh Empire, preceding British conquest and the decline of Persian in South Asia. Beginning in 1843, though, English and Hindustani gradually replaced Persian in importance on the subcontinent. Evidence of Persian's historical influence there can be seen in the extent of its influence on certain languages of the Indian subcontinent. Words borrowed from Persian are still quite commonly used in certain Indo-Aryan languages, especially Hindi-Urdu (also historically known as Hindustani), Punjabi, Kashmiri and Sindhi. There is also a small population of Zoroastrian Iranis in India, who migrated in the 19th century to escape religious execution in Qajar Iran and speak a Dari dialect. Contemporary Persian Qajar dynasty In the 19th century, under the Qajar dynasty, the dialect that is spoken in Tehran rose to prominence. There was still substantial Arabic vocabulary, but many of these words have been integrated into Persian phonology and grammar. In addition, under the Qajar rule numerous Russian, French, and English terms entered the Persian language, especially vocabulary related to technology. The first official attentions to the necessity of protecting the Persian language against foreign words, and to the standardization of Persian orthography, were under the reign of Naser ed Din Shah of the Qajar dynasty in 1871. After Naser ed Din Shah, Mozaffar ed Din Shah ordered the establishment of the first Persian association in 1903. This association officially declared that it used Persian and Arabic as acceptable sources for coining words. The ultimate goal was to prevent books from being printed with wrong use of words. According to the executive guarantee of this association, the government was responsible for wrongfully printed books. Words coined by this association, such as rāh-āhan () for "railway", were printed in Soltani Newspaper; but the association was eventually closed due to inattention. A scientific association was founded in 1911, resulting in a dictionary called Words of Scientific Association (), which was completed in the future and renamed Katouzian Dictionary (). Pahlavi dynasty The first academy for the Persian language was founded on 20 May 1935, under the name Academy of Iran. It was established by the initiative of Reza Shah Pahlavi, and mainly by Hekmat e Shirazi and Mohammad Ali Foroughi, all prominent names in the nationalist movement of the time. The academy was a key institution in the struggle to re-build Iran as a nation-state after the collapse of the Qajar dynasty. During the 1930s and 1940s, the academy led massive campaigns to replace the many Arabic, Russian, French, and Greek loanwords whose widespread use in Persian during the centuries preceding the foundation of the Pahlavi dynasty had created a literary language considerably different from the spoken Persian of the time. This became the basis of what is now known as "Contemporary Standard Persian". Varieties There are three standard varieties of modern Persian:Iranian Persian (Persian, Western Persian, or Farsi) is spoken in Iran, and by minorities in Iraq and the Persian Gulf states.Eastern Persian (Dari Persian, Afghan Persian, or Dari) is spoken in Afghanistan.Tajiki (Tajik Persian) is spoken in Tajikistan and Uzbekistan. It is written in the Cyrillic script. All these three varieties are based on the classic Persian literature and its literary tradition. There are also several local dialects from Iran, Afghanistan and Tajikistan which slightly differ from the standard Persian. The Hazaragi dialect (in Central Afghanistan and Pakistan), Herati (in Western Afghanistan), Darwazi (in Afghanistan and Tajikistan), Basseri (in Southern Iran), and the Tehrani accent (in Iran, the basis of standard Iranian Persian) are examples of these dialects. Persian-speaking peoples of Iran, Afghanistan, and Tajikistan can understand one another with a relatively high degree of mutual intelligibility. Nevertheless, the Encyclopædia Iranica notes that the Iranian, Afghan and Tajiki varieties comprise distinct branches of the Persian language, and within each branch a wide variety of local dialects exist. The following are some languages closely related to Persian, or in some cases are considered dialects: Luri (or Lori), spoken mainly in the southwestern Iranian provinces of Lorestan, Kohgiluyeh and Boyer-Ahmad, Chaharmahal and Bakhtiari some western parts of Fars Province and some parts of Khuzestan Province. Achomi (or Lari), spoken mainly in southern Iranian provinces of Fars and Hormozgan. Tat, spoken in parts of Azerbaijan, Russia, and Transcaucasia. It is classified as a variety of Persian.V. Minorsky, "Tat" in M. Th. Houtsma et al., eds., The Encyclopædia of Islam: A Dictionary of the Geography, Ethnography and Biography of the Muhammadan Peoples, 4 vols. and Suppl., Leiden: Late E.J. Brill and London: Luzac, 1913–38.C Kerslake, Journal of Islamic Studies (2010) 21 (1): 147–151. excerpt: "It is a comparison of the verbal systems of three varieties of Persian—standard Persian, Tat, and Tajik—in terms of the 'innovations' that the latter two have developed for expressing finer differentiations of tense, aspect and modality..." (This dialect is not to be confused with the Tati language of northwestern Iran, which is a member of a different branch of the Iranian languages.) Judeo-Tat. Part of the Tat-Persian continuum, spoken in Azerbaijan, Russia, as well as by immigrant communities in Israel and New York. More distantly related branches of the Iranian language family include Kurdish and Balochi. Phonology Iranian Persian has six vowels and twenty-three consonants; both Dari and Tajiki have eight vowels. Vowels Historically, Persian distinguished length. Early New Persian had a series of five long vowels (, , , and ) along with three short vowels , and . At some point prior to the 16th century in the general area now modern Iran, and merged into , and and merged into . Thus, older contrasts such as shēr "lion" vs. shīr "milk", and zūd "quick" vs zōr "strong" were lost. However, there are exceptions to this rule, and in some words, ē and ō are merged into the diphthongs and (which are descendants of the diphthongs
dynasty The first academy for the Persian language was founded on 20 May 1935, under the name Academy of Iran. It was established by the initiative of Reza Shah Pahlavi, and mainly by Hekmat e Shirazi and Mohammad Ali Foroughi, all prominent names in the nationalist movement of the time. The academy was a key institution in the struggle to re-build Iran as a nation-state after the collapse of the Qajar dynasty. During the 1930s and 1940s, the academy led massive campaigns to replace the many Arabic, Russian, French, and Greek loanwords whose widespread use in Persian during the centuries preceding the foundation of the Pahlavi dynasty had created a literary language considerably different from the spoken Persian of the time. This became the basis of what is now known as "Contemporary Standard Persian". Varieties There are three standard varieties of modern Persian:Iranian Persian (Persian, Western Persian, or Farsi) is spoken in Iran, and by minorities in Iraq and the Persian Gulf states.Eastern Persian (Dari Persian, Afghan Persian, or Dari) is spoken in Afghanistan.Tajiki (Tajik Persian) is spoken in Tajikistan and Uzbekistan. It is written in the Cyrillic script. All these three varieties are based on the classic Persian literature and its literary tradition. There are also several local dialects from Iran, Afghanistan and Tajikistan which slightly differ from the standard Persian. The Hazaragi dialect (in Central Afghanistan and Pakistan), Herati (in Western Afghanistan), Darwazi (in Afghanistan and Tajikistan), Basseri (in Southern Iran), and the Tehrani accent (in Iran, the basis of standard Iranian Persian) are examples of these dialects. Persian-speaking peoples of Iran, Afghanistan, and Tajikistan can understand one another with a relatively high degree of mutual intelligibility. Nevertheless, the Encyclopædia Iranica notes that the Iranian, Afghan and Tajiki varieties comprise distinct branches of the Persian language, and within each branch a wide variety of local dialects exist. The following are some languages closely related to Persian, or in some cases are considered dialects: Luri (or Lori), spoken mainly in the southwestern Iranian provinces of Lorestan, Kohgiluyeh and Boyer-Ahmad, Chaharmahal and Bakhtiari some western parts of Fars Province and some parts of Khuzestan Province. Achomi (or Lari), spoken mainly in southern Iranian provinces of Fars and Hormozgan. Tat, spoken in parts of Azerbaijan, Russia, and Transcaucasia. It is classified as a variety of Persian.V. Minorsky, "Tat" in M. Th. Houtsma et al., eds., The Encyclopædia of Islam: A Dictionary of the Geography, Ethnography and Biography of the Muhammadan Peoples, 4 vols. and Suppl., Leiden: Late E.J. Brill and London: Luzac, 1913–38.C Kerslake, Journal of Islamic Studies (2010) 21 (1): 147–151. excerpt: "It is a comparison of the verbal systems of three varieties of Persian—standard Persian, Tat, and Tajik—in terms of the 'innovations' that the latter two have developed for expressing finer differentiations of tense, aspect and modality..." (This dialect is not to be confused with the Tati language of northwestern Iran, which is a member of a different branch of the Iranian languages.) Judeo-Tat. Part of the Tat-Persian continuum, spoken in Azerbaijan, Russia, as well as by immigrant communities in Israel and New York. More distantly related branches of the Iranian language family include Kurdish and Balochi. Phonology Iranian Persian has six vowels and twenty-three consonants; both Dari and Tajiki have eight vowels. Vowels Historically, Persian distinguished length. Early New Persian had a series of five long vowels (, , , and ) along with three short vowels , and . At some point prior to the 16th century in the general area now modern Iran, and merged into , and and merged into . Thus, older contrasts such as shēr "lion" vs. shīr "milk", and zūd "quick" vs zōr "strong" were lost. However, there are exceptions to this rule, and in some words, ē and ō are merged into the diphthongs and (which are descendants of the diphthongs and in Early New Persian), instead of merging into and . Examples of the exception can be found in words such as (bright). Numerous other instances exist. However, in Dari, the archaic distinction of and (respectively known as Yā-ye majhūl and Yā-ye ma'rūf) is still preserved as well as the distinction of and (known as Wāw-e majhūl and Wāw-e ma'rūf). On the other hand, in standard Tajik, the length distinction has disappeared, and merged with and with . Therefore, contemporary Afghan Dari dialects are the closest to the vowel inventory of Early New Persian. According to most studies on the subject (e.g. Samareh 1977, Pisowicz 1985, Najafi 2001), the three vowels traditionally considered long (, , ) are currently distinguished from their short counterparts (, , ) by position of articulation rather than by length. However, there are studies (e.g. Hayes 1979, Windfuhr 1979) that consider vowel length to be the active feature of the system, with , , and phonologically long or bimoraic and , , and phonologically short or monomoraic. There are also some studies that consider quality and quantity to be both active in the Iranian system (such as Toosarvandani 2004). That offers a synthetic analysis including both quality and quantity, which often suggests that Modern Persian vowels are in a transition state between the quantitative system of Classical Persian and a hypothetical future Iranian language, which will eliminate all traces of quantity and retain quality as the only active feature. The length distinction is still strictly observed by careful reciters of classic-style poetry for all varieties (including Tajik). Consonants Notes: in Iranian Persian and have merged into [~ɢ], as a voiced velar fricative when positioned intervocalically and unstressed, and as a voiced uvular stop otherwise. Grammar Morphology Suffixes predominate Persian morphology, though there are a small number of prefixes. Verbs can express tense and aspect, and they agree with the subject in person and number. There is no grammatical gender in modern Persian, and pronouns are not marked for natural gender. In other words, in Persian, pronouns are gender neutral. When referring to a masculine or a feminine subject the same pronoun is used (pronounced "ou", ū). Syntax Normal declarative sentences are structured as (S) (PP) (O) V: sentences have optional subjects, prepositional phrases, and objects followed by a compulsory verb. If the object is specific, the object is followed by the word rā and precedes prepositional phrases: (S) (O + rā) (PP) V. Vocabulary Native word formation Persian makes extensive use of word building and combining affixes, stems, nouns and adjectives. Persian frequently uses derivational agglutination to form new words from nouns, adjectives, and verbal stems. New words are extensively formed by compounding – two existing words combining into a new one. Influences While having a lesser influence on Arabic and other languages of Mesopotamia and its core vocabulary being of Middle Persian origin, New Persian contains a considerable number of Arabic lexical items, which were Persianized and often took a different meaning and usage than the Arabic original. Persian loanwords of Arabic origin especially include Islamic terms. The Arabic vocabulary in other Iranian, Turkic and Indic languages is generally understood to have been copied from New Persian, not from Arabic itself. John R. Perry, in his article Lexical Areas and Semantic Fields of Arabic, estimates that about 24 percent of an everyday vocabulary of 20,000 words in current Persian, and more than 25 percent of the vocabulary of classical and modern Persian literature, are of Arabic origin. The text frequency of these loan words is generally lower and varies by style and topic area. It may approach 25 percent of a text in literature. According to another source, about 40% of everyday Persian literary vocabulary is of Arabic origin. Among the Arabic loan words, relatively few (14 percent) are from the semantic domain of material culture, while a larger number are from domains of intellectual and spiritual life. Most of the Arabic words used in Persian are either synonyms of native terms or could be glossed in Persian. The inclusion of Mongolic and Turkic elements in the Persian language should also be mentioned, not only because of the political role a succession of Turkic dynasties played in Iranian history, but also because of the immense prestige Persian language and literature enjoyed in the wider (non-Arab) Islamic world, which was often ruled by sultans and emirs with a Turkic background. The Turkish and Mongolian vocabulary in Persian is minor in comparison to that of Arabic and these words were mainly confined to military, pastoral terms and political sector (titles, administration, etc.). New military and political titles were coined based partially on Middle Persian (e.g. for "army", instead of the Uzbek ; ; ; etc.) in the 20th century. Persian has likewise influenced the vocabularies of other languages, especially other Indo-European languages such as Armenian, Urdu, Bengali and Hindi; the latter three through conquests of Persianized Central Asian Turkic and Afghan invaders; Turkic languages such as Ottoman Turkish, Chagatai, Tatar, Turkish, Turkmen, Azeri, Uzbek, and Karachay-Balkar; Caucasian languages such as Georgian, and to a lesser extent, Avar and Lezgin; Afro-Asiatic languages like Assyrian (List of loanwords in Assyrian Neo-Aramaic) and Arabic, particularly Bahrani Arabic; and even Dravidian languages indirectly especially Malayalam, Tamil, Telugu and Brahui; as well as Austronesian languages such as Indonesian and Malaysian Malay. Persian has also had a significant lexical influence, via Turkish, on Albanian and Serbo-Croatian, particularly as spoken in Bosnia and Herzegovina. Use of occasional foreign synonyms instead of Persian words can be a common practice in everyday communications as an alternative expression. In some instances in addition to the Persian vocabulary, the equivalent synonyms from multiple foreign languages can be used. For example, in Iranian colloquial Persian (not in Afghanistan or Tajikistan), the phrase "thank you" may be expressed using the French word (stressed, however, on the first syllable), the hybrid Persian-Arabic phrase ( being "thankful" in Arabic, commonly pronounced in Persian, and the verb am meaning "I am" in Persian), or by the pure Persian phrase . Orthography The vast majority of modern Iranian Persian and Dari text is written with the Arabic script. Tajiki, which is considered by some linguists to be a Persian dialect influenced by Russian and the Turkic languages of Central Asia, is written with the Cyrillic script in Tajikistan (see Tajik alphabet). There also exist several romanization systems for Persian. Persian alphabet Modern Iranian Persian and Afghan Persian are written using the Persian alphabet which is a modified variant of the Arabic alphabet, which uses different pronunciation and additional letters not found
District in Herat province, Afghanistan Farsi Island, an Iranian island off the coast of Fars, Iran Farsi village, located in Hormozgan province, Iran Farsi1, a Persian-language TV channel See also Persia (disambiguation)
Farsi, Afghanistan Farsi District in Herat province, Afghanistan Farsi Island, an Iranian island off the coast of Fars, Iran Farsi village, located in Hormozgan province, Iran Farsi1, a Persian-language TV channel See
sense of fashion. Writer and politician Horace Walpole described her as one of the finest actors of their time, and Richard Brinsley Sheridan was said to have written the part of Lady Teazle in The School for Scandal for her to perform. Early life She was born Frances Barton or Frances "Fanny" Barton, as the daughter of a private soldier. She began her career as a flower girl and a street singer. It was also rumoured that she recited Shakespeare in taverns at the age of 12, along with being a prostitute for a short period to help her family with financial problems. Later, she became a servant to a French milliner. During that time, she learnt about costume and learnt French. Her early nickname, Nosegay Fan, came from her time as a flower girl. Career Her first appearance on stage was at Haymarket in 1755 as Miranda in Mrs Centlivre's play, Busybody. She rose to become a principal actor
Lady Townley (in The Provoked Husband by Vanbrugh and Cibber) was a success. David Garrick convinced her to return to Drury Lane, and they worked together there until his retirement in 1776. From 1759 onwards she appeared in the bills as "Mrs Abington", following her marriage to her music tutor, the royal trumpeter James Abington. They separated shortly after their marriage as he could not cope with her popularity. They lived separately, with Fanny paying James a small annual stipend to stay away from her. She subsequently had affairs with an Irish MP, Needham, who left her a considerable estate, and William Petty, 2nd Earl of Shelburne. The income from her estate and her stage work made her a wealthy woman. She remained at the Drury Lane for 18 years, being the first to play more than 30 important characters, notably Lady Teazle (1777) in The School for Scandal. In April 1772, when James Northcote saw her as Miss Notable in Cibber's The Lady's Last Stake, he remarked to his brother Her wealth and popularity meant she influenced fashion. The press reported on her hair styles: her low hair in The School for Scandal was praised for changing the fashion. Her performance as Kitty in "High Life Below Stairs" put her in the foremost rank of comic actresses and made the mob cap she wore in the role fashionable. It was soon being referred to as the "Abington Cap" on stage and at hatters' shops across Ireland and England. It was as the last character in Congreve's Love for Love that Sir Joshua Reynolds painted the best-known of his half-dozen or more portraits of her (illustration, left).
polynomial of degree 2. For , this has been done in the preceding section. If is an odd prime, there are always irreducible polynomials of the form , with in . More precisely, the polynomial is irreducible over if and only if is a quadratic non-residue modulo (this is almost the definition of a quadratic non-residue). There are quadratic non-residues modulo . For example, is a quadratic non-residue for , and is a quadratic non-residue for . If , that is , one may choose as a quadratic non-residue, which allows us to have a very simple irreducible polynomial . Having chosen a quadratic non-residue , let be a symbolic square root of , that is a symbol which has the property , in the same way as the complex number is a symbolic square root of . Then, the elements of are all the linear expressions with and in . The operations on are defined as follows (the operations between elements of represented by Latin letters are the operations in ): GF(8) and GF(27) The polynomial is irreducible over and , that is, it is irreducible modulo and (to show this, it suffices to show that it has no root in nor in ). It follows that the elements of and may be represented by expressions where are elements of or (respectively), and is a symbol such that The addition, additive inverse and multiplication on and may thus be defined as follows; in following formulas, the operations between elements of or , represented by Latin letters, are the operations in or , respectively: GF(16) The polynomial is irreducible over , that is, it is irreducible modulo . It follows that the elements of may be represented by expressions where are either or (elements of ), and is a symbol such that (that is, is defined as a root of the given irreducible polynomial). As the characteristic of is , each element is its additive inverse in . The addition and multiplication on may be defined as follows; in following formulas, the operations between elements of , represented by Latin letters are the operations in . The field has eight primitive elements (the elements that have all nonzero elements of as integer powers). These elements are the four roots of and their multiplicative inverses. In particular, is a primitive element, and the primitive elements are with less than and coprime with 15 (that is, 1, 2, 4, 7, 8, 11, 13, 14). Multiplicative structure The set of non-zero elements in is an abelian group under the multiplication, of order . By Lagrange's theorem, there exists a divisor of such that for every non-zero in . As the equation has at most solutions in any field, is the lowest possible value for . The structure theorem of finite abelian groups implies that this multiplicative group is cyclic, that is, all non-zero elements are powers of a single element. In summary: The multiplicative group of the non-zero elements in is cyclic, and there exists an element , such that the non-zero elements of are . Such an element is called a primitive element. Unless , the primitive element is not unique. The number of primitive elements is where is Euler's totient function. The result above implies that for every in . The particular case where is prime is Fermat's little theorem. Discrete logarithm If is a primitive element in , then for any non-zero element in , there is a unique integer with such that . This integer is called the discrete logarithm of to the base . While can be computed very quickly, for example using exponentiation by squaring, there is no known efficient algorithm for computing the inverse operation, the discrete logarithm. This has been used in various cryptographic protocols, see Discrete logarithm for details. When the nonzero elements of are represented by their discrete logarithms, multiplication and division are easy, as they reduce to addition and subtraction modulo . However, addition amounts to computing the discrete logarithm of . The identity allows one to solve this problem by constructing the table of the discrete logarithms of , called Zech's logarithms, for (it is convenient to define the discrete logarithm of zero as being ). Zech's logarithms are useful for large computations, such as linear algebra over medium-sized fields, that is, fields that are sufficiently large for making natural algorithms inefficient, but not too large, as one has to pre-compute a table of the same size as the order of the field. Roots of unity Every nonzero element of a finite field is a root of unity, as for every nonzero element of . If is a positive integer, an th primitive root of unity is a solution of the equation that is not a solution of the equation for any positive integer . If is a th primitive root of unity in a field , then contains all the roots of unity, which are . The field contains a th primitive root of unity if and only if is a divisor of ; if is a divisor of , then the number of primitive th roots of unity in is (Euler's totient function). The number of th roots of unity in is . In a field of characteristic , every th root of unity is also a th root of unity. It follows that primitive th roots of unity never exist in a field of characteristic . On the other hand, if is coprime to , the roots of the th cyclotomic polynomial are distinct in every field of characteristic , as this polynomial is a divisor of , whose discriminant is nonzero modulo . It follows that the th cyclotomic polynomial factors over into distinct irreducible polynomials that have all the same degree, say , and that is the smallest field of characteristic that contains the th primitive roots of unity. Example: GF(64) The field has several interesting properties that smaller fields do not share: it has two subfields such that neither is contained in the other; not all generators (elements with minimal polynomial of degree over ) are primitive elements; and the primitive elements are not all conjugate under the Galois group. The order of this field being , and the divisors of being , the subfields of are , , , and itself. As and are coprime, the intersection of and in is the prime field . The union of and has thus elements. The remaining elements of generate in the sense that no other subfield contains any of them. It follows that they are roots of irreducible polynomials of degree over . This implies that, over , there are exactly irreducible monic polynomials of degree . This may be verified by factoring over . The elements of are primitive th roots of unity for some dividing . As the 3rd and the 7th roots of unity belong to and , respectively, the generators are primitive th roots of unity for some in . Euler's totient function shows that there are primitive th roots of unity, primitive st roots of unity, and primitive rd roots of unity. Summing these numbers, one finds again elements. By factoring the cyclotomic polynomials over , one finds that: The six primitive th roots of unity are roots of and are all conjugate under the action of the Galois group. The twelve primitive st roots of unity are roots of They form two orbits under the action of the Galois group. As the two factors are reciprocal to each other, a root and its (multiplicative) inverse do not belong to the same orbit. The primitive elements of are the roots of They split into six orbits of six
a table of the same size as the order of the field. Roots of unity Every nonzero element of a finite field is a root of unity, as for every nonzero element of . If is a positive integer, an th primitive root of unity is a solution of the equation that is not a solution of the equation for any positive integer . If is a th primitive root of unity in a field , then contains all the roots of unity, which are . The field contains a th primitive root of unity if and only if is a divisor of ; if is a divisor of , then the number of primitive th roots of unity in is (Euler's totient function). The number of th roots of unity in is . In a field of characteristic , every th root of unity is also a th root of unity. It follows that primitive th roots of unity never exist in a field of characteristic . On the other hand, if is coprime to , the roots of the th cyclotomic polynomial are distinct in every field of characteristic , as this polynomial is a divisor of , whose discriminant is nonzero modulo . It follows that the th cyclotomic polynomial factors over into distinct irreducible polynomials that have all the same degree, say , and that is the smallest field of characteristic that contains the th primitive roots of unity. Example: GF(64) The field has several interesting properties that smaller fields do not share: it has two subfields such that neither is contained in the other; not all generators (elements with minimal polynomial of degree over ) are primitive elements; and the primitive elements are not all conjugate under the Galois group. The order of this field being , and the divisors of being , the subfields of are , , , and itself. As and are coprime, the intersection of and in is the prime field . The union of and has thus elements. The remaining elements of generate in the sense that no other subfield contains any of them. It follows that they are roots of irreducible polynomials of degree over . This implies that, over , there are exactly irreducible monic polynomials of degree . This may be verified by factoring over . The elements of are primitive th roots of unity for some dividing . As the 3rd and the 7th roots of unity belong to and , respectively, the generators are primitive th roots of unity for some in . Euler's totient function shows that there are primitive th roots of unity, primitive st roots of unity, and primitive rd roots of unity. Summing these numbers, one finds again elements. By factoring the cyclotomic polynomials over , one finds that: The six primitive th roots of unity are roots of and are all conjugate under the action of the Galois group. The twelve primitive st roots of unity are roots of They form two orbits under the action of the Galois group. As the two factors are reciprocal to each other, a root and its (multiplicative) inverse do not belong to the same orbit. The primitive elements of are the roots of They split into six orbits of six elements each under the action of the Galois group. This shows that the best choice to construct is to define it as . In fact, this generator is a primitive element, and this polynomial is the irreducible polynomial that produces the easiest Euclidean division. Frobenius automorphism and Galois theory In this section, is a prime number, and is a power of . In , the identity implies that the map is a -linear endomorphism and a field automorphism of , which fixes every element of the subfield . It is called the Frobenius automorphism, after Ferdinand Georg Frobenius. Denoting by the composition of with itself times, we have It has been shown in the preceding section that is the identity. For , the automorphism is not the identity, as, otherwise, the polynomial would have more than roots. There are no other -automorphisms of . In other words, has exactly -automorphisms, which are In terms of Galois theory, this means that is a Galois extension of , which has a cyclic Galois group. The fact that the Frobenius map is surjective implies that every finite field is perfect. Polynomial factorization If is a finite field, a non-constant monic polynomial with coefficients in is irreducible over , if it is not the product of two non-constant monic polynomials, with coefficients in . As every polynomial ring over a field is a unique factorization domain, every monic polynomial over a finite field may be factored in a unique way (up to the order of the factors) into a product of irreducible monic polynomials. There are efficient algorithms for testing polynomial irreducibility and factoring polynomials over finite field. They are a key step for factoring polynomials over the integers or the rational numbers. At least for this reason, every computer algebra system has functions for factoring polynomials over finite fields, or, at least, over finite prime fields. Irreducible polynomials of a given degree The polynomial factors into linear factors over a field of order . More precisely, this polynomial is the product of all monic polynomials of degree one over a field of order . This implies that, if then is the product of all monic irreducible polynomials over , whose degree divides . In fact, if is an irreducible factor over of , its degree divides , as its splitting field is contained in . Conversely, if is an irreducible monic polynomial over of degree dividing , it defines a field extension of degree , which is contained in , and all roots of belong to , and are roots of ; thus divides . As does not have any multiple factor, it is thus the product of all the irreducible monic polynomials that divide it. This property is used to compute the product of the irreducible factors of each degree of polynomials over ; see Distinct degree factorization. Number of monic irreducible polynomials of a given degree over a finite field The number of monic irreducible polynomials of degree over is given by where is the Möbius function. This formula is almost a direct consequence of above property of . By the above formula, the number of irreducible (not necessarily monic) polynomials of degree over is . A (slightly simpler) lower bound for is One may easily deduce that, for every and every , there is at least one irreducible polynomial of degree over . This lower bound is sharp for . Applications In cryptography, the difficulty of the discrete logarithm problem in finite fields or in elliptic curves is the basis of several widely used protocols, such as the Diffie–Hellman protocol. For example, in 2014, a secure internet connection to Wikipedia involved the elliptic curve Diffie–Hellman protocol (ECDHE) over a large finite field. In coding theory, many codes are constructed as subspaces of vector spaces over finite fields. Finite fields are used by many error correction codes, such as Reed–Solomon error correction code or BCH code. The finite field almost always has characteristic of 2, since computer data is stored in binary. For example, a byte of data can be interpreted as an element of . One exception is PDF417 bar code, which is . Some CPUs have special instructions that can be useful for finite fields of characteristic 2, generally variations of carry-less product. Finite fields are widely used in number theory, as many problems over the integers may be solved by reducing them modulo one or several prime numbers. For example, the fastest known algorithms for polynomial factorization and linear algebra over the field of rational numbers proceed by reduction modulo one or several primes, and then reconstruction of the solution by using Chinese remainder theorem, Hensel lifting or
These are significant changes and it is important that franchisors, franchisees and potential franchises understand their rights and responsibilities under the Code. For further information about the changes to the Code, please see the updated Franchisor Compliance Manual and the Franchisee Manual. The Code explanatory materials are available from the ComLaw website (link is external). New Zealand New Zealand is served by around 423 franchise systems operating 450 brands, giving it the highest proportion of franchises per capita in the world. Despite (or because of) the 2008-09 recession, the total number of franchised units increased by 5.3% from 2009 to 2010. There is no separate law covering franchises, so they are covered by normal commercial law. This functions very well in New Zealand and includes law as it applies to contracts, restrictive trade practices, intellectual property, and the law of misleading or deceptive conduct. The Franchise Association of New Zealand introduced a self-regulatory code of practice for its members in 1996. This contains many provisions similar to those of the Australian Franchising Code of Practice legislation, although only around a third of all franchises are members of the association and therefore bound by the code. A case of fraud in 2007 perpetrated by a former master franchisee of the country's largest franchise system led to a review of the need for franchise law by the Ministry of Economic Development. The New Zealand Government decided there was no case for franchise-specific legislation at that time. This decision was criticised by the opposition, which had initiated the review when in power, and the review process was questioned by a leading academic. The Franchise Association originally supported the positive regulation of the franchise sector but its eventual submission to the review was in favour of the status quo of self-regulation. Brazil By the end of 2012, about 2,031 franchise brands were operating in Brazil, with approximately 93,000 locations, making it one of the largest countries in the world in terms of number of units. Around 11 percent of this total were foreign-based franchisors. The Brazilian Franchise Law (Law No. 8955 of December 15, 1994) defines the franchise as a system in which the franchisor licenses the franchisee, for a payment, the right to use a trademark or patent along with the right to distribute products or services on an exclusive or semi-exclusive basis. The provision of a "Franchise Offer Circular", or disclosure document, is mandatory before execution of agreement and is valid for all of the Brazilian territory. Failure to disclose voids the agreement, which leads to refunds and serious payments for damages. The Franchise Law does not distinguish between Brazilian and foreign franchisors. The National Institute of Industrial Property (INPI) is the registering authority. Indispensable documents are a Statement of Delivery (of disclosure documentation) and a Certification of Recording (INPI). The latter is necessary for payments. All sums may not be convertible into foreign currency. Certification may also mean compliance with Brazil's antitrust legislation. Parties to international franchising may decide to adopt the English language for the document, as long as the Brazilian party knows English fluently and expressly acknowledges that fact, to avoid translation. The registration accomplishes three things: * It make the agreement effective against third parties * It permits the remittance of payments * It qualifies the franchisee for tax deductions. Canada In Canada, recent legislation has mandated better disclosure and fair treatment of franchisees. The regulations also ensure their right to form associations and launch collective action, even if they signed contracts prohibiting such moves. Franchising in Canada involves 1,300 brands, 80,000 franchise units accounting for about 20% of all consumer spending. China China has the most franchises in the world but the scale of their operations is relatively small. The average franchise system in China has about 45 outlets, compared to more than 540 in the United States. Together, there are 2600 brands in some 200,000 retail markets. KFC was the most significant foreign entry in 1987 and is widespread. Many franchises are in fact joint-ventures, as at their forming the franchise law was not explicit. For example, McDonald's is a joint venture. Pizza Hut, TGIF, Wal-mart, Starbucks followed not long thereafter. But total franchising is only 3% of retail trade, which seeks foreign franchise growth. The year 2005 saw the birth of an updated franchise law, "Measures for the Administration of Commercial Franchise". Previous legislation (1997) made no specific inclusion of foreign investors. Further updates were made in 2007, with the objective of increased clarity of the law. The laws are applicable if there are transactions involving a trademark combined with payments with many obligations on the franchisor. The law comprises 42 articles and eight chapters. Among the franchisor obligations are: The FIE (foreign-invested enterprise) franchisor must be registered by the regulator The franchisor (or its subsidiary) must have operated at least two company-owned franchises in China (revised to "anywhere") for more than 12 months ("the two-shop, one-year" rule) The franchisor must disclose any information requested by the franchisee Cross-border franchising, with some caveats, is possible (2007 law). The franchisor must meet a list of requirements for registration, among which are: The standard franchise agreement, working manual and working capital requirements, A track-record of operations, and ample ability to supply materials, The ability to train the Chinese personnel and provide long-term operational guidance, The franchise agreement must have a minimum three-year term. Among other provisions: The franchisor is liable for certain actions of its suppliers Monetary and other penalties apply for infractions of the regulations. The disclosure must take place 20 days in advance. It has to contain: Details of the franchisor's experience in the franchised business with scope of business Identification of the franchisor's principal officers Litigation of the franchisor during the past five years Full details about all franchise fees The amount of a franchisee's initial investment A list of the goods or services the franchisor can supply, and the terms of supply The training franchisees will receive Information about the trademarks, including registration, usage and litigation Demonstration of the franchisor's capabilities to provide training and guidance Statistics about existing units, including number, locations and operational results, and the percentage of franchises that have been terminated, and An audited financial report and tax information (for an unspecified period of time). Other elements of this legislation are: The franchisee's confidentiality obligations continue indefinitely after termination or expiration of the franchise agreement If the franchisee has paid a deposit to the franchisor, it must be refunded on termination of the franchise agreement; upon termination, the franchisee is prohibited from continuing to use the franchisor's marks. India The franchising of foreign goods and services to India is in its infancy. The first International Exhibition was only held in 2009. India is, however, one of the biggest franchising markets because of its large middle-class of 300 million who are not reticent about spending and because the population is entrepreneurial in character. In a highly diversified society, (see Demographics of India) McDonald's is a success story despite its menu differing from that of the rest of the world. So far, franchise agreements are covered under two standard commercial laws: the Contract Act 1872 and the Specific Relief Act 1963, which provide for both specific enforcement of covenants in a contract and remedies in the form of damages for breach of contract. Kazakhstan In Kazakhstan franchise turnover for 2013 is 2.5 billion US$ dollars per year. Kazakhstan is the leader in Central Asia in the franchising market. A special law on franchising came into effect in 2002. There are more than 300 franchise systems and the number of franchised outlets approaches 2000. Kazakhstan franchising began with the emergence of a "Coca-Cola" factory, opened to sublicense a Turkish licensor of the same brand. The plant was built in 1994. Other brands that are also present in Kazakhstan through the franchise system include Pepsi, Hilton, Marriott, Intercontinental, and Pizza Hut. Europe Franchising has grown rapidly in Europe in recent years, but the industry is largely unregulated. The European Union has not adopted a uniform franchise law. Only six of the 28 member states have a pre-contract disclosure law. They are France (1989), Spain (1996), Romania (1997), Italy (2004) Sweden ( 2004) and Belgium (2005). Estonia and Lithuania have franchise laws that impose mandatory terms on franchise agreements. In Spain there is also mandatory registration on a public registry. Although they have no franchise specific laws, Germany and those countries with a legal system based upon that of Germany, such as Austria, Greece and Portugal, probably impose the greatest regulatory burden on franchisors due to their tendency to treat franchisees as quasi consumers in certain circumstances and the willingness of the judiciary to use the concept of good faith to make pro-franchisee decisions. In the UK, the recent Papa John case shows that there is also a need for pre-contractual disclosure and the Yam Seng case shows that there is a duty of good faith in franchise relationships. The European Franchising Federation's Code of Ethics has been adopted by seventeen national franchise associations. However this has no legal force and enforcement by the national associations is neither uniform of rigorous. Commentators like Dr Mark Abell, in his book "The Law and Regulation of Franchising in the EU" (published in 2013 by Edward Elgar ) consider this lack of uniformity to be one of the greatest barriers to franchising realising its potential in the EU. When adopting a European strategy, it is important that a franchisor takes expert legal advice. Most often one of the principal tasks in Europe is to find retail space, which is not so significant a factor in the USA. This is where the franchise broker, or the master franchisor, plays an important role. Cultural factors are also relevant, as local populations tend to be heterogeneous. France France is one of Europe's largest markets. Similar to the United States, it has a long history of franchising, dating back to the 1930s. Growth came in the 1970s. The market is considered difficult for outside franchisors because of cultural characteristics, yet McDonald's and Century 21 are found everywhere. There are some 30 U.S. firms involved in franchising in France. There are no government agencies regulating franchises. The Loi Doubin Law of 1989 was the first European franchise disclosure law. Combined with Decree No. 91-337, it regulates disclosure, although the decree also applies to any person who provides to another person a corporate name, trademark or trade name or other business arrangements. The law applies to "exclusive or quasi-exclusive territory". The disclosure document must be delivered at least 20 days before the execution of the agreement or any payments are made. The specific and important disclosures to be made are: The date of the founding of the franchisor's enterprise and a summary of its business history and all information necessary to assess the business experience of the franchisor, including bankers, A description of the local market for the goods or services, The franchisor's financial statements for the previous two years, A list of all other franchisees currently in the network, All franchisees who have left the network during the preceding year, whether by termination or non-renewal, and The conditions for renewal, assignment, termination and the scope of exclusivity. Initially, there was some uncertainty whether any breach of the provisions of the Doubin Law would enable the franchisee to walk away from the contract. However, the French supreme court (Cour de cassation) eventually ruled that agreements should only be annulled where missing or incorrect information affected the decision of the franchisee to enter into the agreement. The burden of proof is on the franchisee. Dispute settlement features are only incorporated in some European countries. By not being rigorous, franchising is encouraged. Italy Under Italian law franchise is defined as an arrangement between two financially independent parties where a franchisee is granted, in exchange for a consideration, the right to market goods and services under particular trademarks. In addition, articles dictate the form and content of the franchise agreement and define the documents that must be made available 30 days prior to execution. The franchisor must disclose: a) A summary of the franchise activities and operations, b) A list of franchisees currently operating in the franchise system in Italy, c) Year-by-year details of the changes in the number of franchisees for the previous three years in Italy, d) A summary of any court or arbitral proceedings in Italy related to the franchise system, and e) If requested by the franchisee, copies of franchisor's balance sheets for the previous three years, or since start-up if that period is shorter. Norway There are no specific laws regulating franchising in Norway. However, the Norwegian Competition Act section 10 prohibits cooperation which may prevent, limit or diminish the competition. This may also apply to vertical cooperation such as franchising. Russia In Russia, under chapter 54 of the Civil Code (passed 1996), franchise agreements are invalid unless written and registered, and franchisors cannot set standards or limits on the prices of the franchisee's goods. Enforcement of laws and resolution of contractual disputes is a problem: Dunkin' Donuts chose to terminate its contract with Russian franchisees who were selling vodka and meat patties contrary to their contracts, rather than pursue legal remedies. Spain The legal definition of franchising in Spain is an activity in which an undertaking, the franchisor, grants to another party, the franchisee, for a specific market and in exchange for financial compensation (either direct, indirect or both), the right to exploit an owned system to commercialize products or services already exploited by the franchisor with enough success and experience. The Spanish Retail Trading Act regulates franchising. The contents of the franchise must include, at least: The use of a common name or brand or any other intellectual property right and a uniform presentation of the premises or the transport means included in the agreement. The communication by the franchisor to the franchise of certain technical knowledge or substantial and singular know-how that has to be owned by the franchisor, and Technical or commercial assistance or both, provided by the franchisor to the franchisee during the agreement, without prejudice to any supervision faculty to which the parties could freely agree in the contract. In Spain, the franchisor submits the disclosure information 20 days prior to signing the agreement or prior to any payment made by the franchisee to the franchisor. Franchisors are to disclose to the potential franchisee specific information in writing. This information has to be true and not misleading and include: Identification of the franchisor; Justification of ownership or license for use of any trademark or similar sign and judicial claims affecting them as well as the duration of the license; General description of the sector in which the franchise operates; Experience of the franchisor; Contents and characteristics of the franchise and its exploitation; Structure and extension of the network in Spain; Essential elements of the franchise agreement. Franchisors (with some exceptions) should be registered in the Franchisors' Register and provide the requested information. According to the regulation in force in 2010 this obligation has to be met within three months after the start of its activities in Spain. Turkey Franchising is a sui generis contract which bears the characteristics of several explicitly regulated contracts such as; agency, sales contract and so forth. The regulations concerning these kinds of contracts in Turkish Commercial Code and in Turkish Code of Obligations are applied to franchising. Franchising is described in doctrine and has several essential components such as; the independence of the franchisee from the franchisor, the use of know-how and the uniformity of product and services, standard use of the brand and logo, payment of a royalty fee, increasement of sales by the franchisee and continuity. Franchising may be for a determined or undetermined period of time. The undetermined one can only be annulled either by a notice before a reasonable amount of time or by a just cause. The franchising agreement with a determined time period ends within the end of the time period if not specified otherwise in the agreement. However, termination based on just cause is also foreseen for franchising agreement with a determined time period. United Kingdom In the United Kingdom there are no franchise-specific laws; franchises are subject to the same laws that govern other businesses. There is some self-regulation through the British Franchise Association (BFA) and the Quality Franchise Association (QFA). There are a number of franchise businesses which are not members of the BFA and many which do not meet the BFA membership criteria. Part of the BFA's role in self-regulation is to work with franchisors through the application process and recommend changes which will lead to the franchise business meeting BFA standards. A number of businesses that refer to themselves as franchises do not conform to the BFA Code of Ethics are therefore excluded from membership. On 22 May 2007, hearings were held in the UK Parliament concerning citizen-initiated petitions for special regulation of franchising by the government of the UK due to losses incurred by citizens who had invested in franchises. The Minister for Industry and the Regions, Margaret Hodge, conducted hearings but saw no need for any government regulation of franchising with the advice that government regulation of franchising might lull the public into a false sense of security. Mr Mark Prisk MP suggested that the costs of such regulation to the franchisee and franchisor could be prohibitive and would in any case provide a system which mirrored the work already being completed by the BFA. The Minister for Industry and the Regions indicated that if due diligence were performed by the investors and the banks, the current laws governing business contracts in the UK offered sufficient protection for the public and the banks. The debate also made reference to the self-regulatory function performed by the BFA recognizing that the association "punched above its weight". In the 2010 case of MGB Printing v Kall Kwik UK Ltd., the High Court established that a franchisor may assume a duty of care to a franchisee in certain circumstances. Kall Kwik, a design and print franchisor, had incorrectly advised MGB, who was purchasing a franchise, of the costs of undertaking refit work needed to meet Kall Kwik's franchising requirements. In this particular case, Kall Kwik had stated that they would provide professional advice to potential franchisees, and because they had not provided details of the fitting standards which must be met, they had encouraged MGB to rely on the advice offered by themselves. United States Isaac Singer, who made improvements to an
prohibiting such moves. Franchising in Canada involves 1,300 brands, 80,000 franchise units accounting for about 20% of all consumer spending. China China has the most franchises in the world but the scale of their operations is relatively small. The average franchise system in China has about 45 outlets, compared to more than 540 in the United States. Together, there are 2600 brands in some 200,000 retail markets. KFC was the most significant foreign entry in 1987 and is widespread. Many franchises are in fact joint-ventures, as at their forming the franchise law was not explicit. For example, McDonald's is a joint venture. Pizza Hut, TGIF, Wal-mart, Starbucks followed not long thereafter. But total franchising is only 3% of retail trade, which seeks foreign franchise growth. The year 2005 saw the birth of an updated franchise law, "Measures for the Administration of Commercial Franchise". Previous legislation (1997) made no specific inclusion of foreign investors. Further updates were made in 2007, with the objective of increased clarity of the law. The laws are applicable if there are transactions involving a trademark combined with payments with many obligations on the franchisor. The law comprises 42 articles and eight chapters. Among the franchisor obligations are: The FIE (foreign-invested enterprise) franchisor must be registered by the regulator The franchisor (or its subsidiary) must have operated at least two company-owned franchises in China (revised to "anywhere") for more than 12 months ("the two-shop, one-year" rule) The franchisor must disclose any information requested by the franchisee Cross-border franchising, with some caveats, is possible (2007 law). The franchisor must meet a list of requirements for registration, among which are: The standard franchise agreement, working manual and working capital requirements, A track-record of operations, and ample ability to supply materials, The ability to train the Chinese personnel and provide long-term operational guidance, The franchise agreement must have a minimum three-year term. Among other provisions: The franchisor is liable for certain actions of its suppliers Monetary and other penalties apply for infractions of the regulations. The disclosure must take place 20 days in advance. It has to contain: Details of the franchisor's experience in the franchised business with scope of business Identification of the franchisor's principal officers Litigation of the franchisor during the past five years Full details about all franchise fees The amount of a franchisee's initial investment A list of the goods or services the franchisor can supply, and the terms of supply The training franchisees will receive Information about the trademarks, including registration, usage and litigation Demonstration of the franchisor's capabilities to provide training and guidance Statistics about existing units, including number, locations and operational results, and the percentage of franchises that have been terminated, and An audited financial report and tax information (for an unspecified period of time). Other elements of this legislation are: The franchisee's confidentiality obligations continue indefinitely after termination or expiration of the franchise agreement If the franchisee has paid a deposit to the franchisor, it must be refunded on termination of the franchise agreement; upon termination, the franchisee is prohibited from continuing to use the franchisor's marks. India The franchising of foreign goods and services to India is in its infancy. The first International Exhibition was only held in 2009. India is, however, one of the biggest franchising markets because of its large middle-class of 300 million who are not reticent about spending and because the population is entrepreneurial in character. In a highly diversified society, (see Demographics of India) McDonald's is a success story despite its menu differing from that of the rest of the world. So far, franchise agreements are covered under two standard commercial laws: the Contract Act 1872 and the Specific Relief Act 1963, which provide for both specific enforcement of covenants in a contract and remedies in the form of damages for breach of contract. Kazakhstan In Kazakhstan franchise turnover for 2013 is 2.5 billion US$ dollars per year. Kazakhstan is the leader in Central Asia in the franchising market. A special law on franchising came into effect in 2002. There are more than 300 franchise systems and the number of franchised outlets approaches 2000. Kazakhstan franchising began with the emergence of a "Coca-Cola" factory, opened to sublicense a Turkish licensor of the same brand. The plant was built in 1994. Other brands that are also present in Kazakhstan through the franchise system include Pepsi, Hilton, Marriott, Intercontinental, and Pizza Hut. Europe Franchising has grown rapidly in Europe in recent years, but the industry is largely unregulated. The European Union has not adopted a uniform franchise law. Only six of the 28 member states have a pre-contract disclosure law. They are France (1989), Spain (1996), Romania (1997), Italy (2004) Sweden ( 2004) and Belgium (2005). Estonia and Lithuania have franchise laws that impose mandatory terms on franchise agreements. In Spain there is also mandatory registration on a public registry. Although they have no franchise specific laws, Germany and those countries with a legal system based upon that of Germany, such as Austria, Greece and Portugal, probably impose the greatest regulatory burden on franchisors due to their tendency to treat franchisees as quasi consumers in certain circumstances and the willingness of the judiciary to use the concept of good faith to make pro-franchisee decisions. In the UK, the recent Papa John case shows that there is also a need for pre-contractual disclosure and the Yam Seng case shows that there is a duty of good faith in franchise relationships. The European Franchising Federation's Code of Ethics has been adopted by seventeen national franchise associations. However this has no legal force and enforcement by the national associations is neither uniform of rigorous. Commentators like Dr Mark Abell, in his book "The Law and Regulation of Franchising in the EU" (published in 2013 by Edward Elgar ) consider this lack of uniformity to be one of the greatest barriers to franchising realising its potential in the EU. When adopting a European strategy, it is important that a franchisor takes expert legal advice. Most often one of the principal tasks in Europe is to find retail space, which is not so significant a factor in the USA. This is where the franchise broker, or the master franchisor, plays an important role. Cultural factors are also relevant, as local populations tend to be heterogeneous. France France is one of Europe's largest markets. Similar to the United States, it has a long history of franchising, dating back to the 1930s. Growth came in the 1970s. The market is considered difficult for outside franchisors because of cultural characteristics, yet McDonald's and Century 21 are found everywhere. There are some 30 U.S. firms involved in franchising in France. There are no government agencies regulating franchises. The Loi Doubin Law of 1989 was the first European franchise disclosure law. Combined with Decree No. 91-337, it regulates disclosure, although the decree also applies to any person who provides to another person a corporate name, trademark or trade name or other business arrangements. The law applies to "exclusive or quasi-exclusive territory". The disclosure document must be delivered at least 20 days before the execution of the agreement or any payments are made. The specific and important disclosures to be made are: The date of the founding of the franchisor's enterprise and a summary of its business history and all information necessary to assess the business experience of the franchisor, including bankers, A description of the local market for the goods or services, The franchisor's financial statements for the previous two years, A list of all other franchisees currently in the network, All franchisees who have left the network during the preceding year, whether by termination or non-renewal, and The conditions for renewal, assignment, termination and the scope of exclusivity. Initially, there was some uncertainty whether any breach of the provisions of the Doubin Law would enable the franchisee to walk away from the contract. However, the French supreme court (Cour de cassation) eventually ruled that agreements should only be annulled where missing or incorrect information affected the decision of the franchisee to enter into the agreement. The burden of proof is on the franchisee. Dispute settlement features are only incorporated in some European countries. By not being rigorous, franchising is encouraged. Italy Under Italian law franchise is defined as an arrangement between two financially independent parties where a franchisee is granted, in exchange for a consideration, the right to market goods and services under particular trademarks. In addition, articles dictate the form and content of the franchise agreement and define the documents that must be made available 30 days prior to execution. The franchisor must disclose: a) A summary of the franchise activities and operations, b) A list of franchisees currently operating in the franchise system in Italy, c) Year-by-year details of the changes in the number of franchisees for the previous three years in Italy, d) A summary of any court or arbitral proceedings in Italy related to the franchise system, and e) If requested by the franchisee, copies of franchisor's balance sheets for the previous three years, or since start-up if that period is shorter. Norway There are no specific laws regulating franchising in Norway. However, the Norwegian Competition Act section 10 prohibits cooperation which may prevent, limit or diminish the competition. This may also apply to vertical cooperation such as franchising. Russia In Russia, under chapter 54 of the Civil Code (passed 1996), franchise agreements are invalid unless written and registered, and franchisors cannot set standards or limits on the prices of the franchisee's goods. Enforcement of laws and resolution of contractual disputes is a problem: Dunkin' Donuts chose to terminate its contract with Russian franchisees who were selling vodka and meat patties contrary to their contracts, rather than pursue legal remedies. Spain The legal definition of franchising in Spain is an activity in which an undertaking, the franchisor, grants to another party, the franchisee, for a specific market and in exchange for financial compensation (either direct, indirect or both), the right to exploit an owned system to commercialize products or services already exploited by the franchisor with enough success and experience. The Spanish Retail Trading Act regulates franchising. The contents of the franchise must include, at least: The use of a common name or brand or any other intellectual property right and a uniform presentation of the premises or the transport means included in the agreement. The communication by the franchisor to the franchise of certain technical knowledge or substantial and singular know-how that has to be owned by the franchisor, and Technical or commercial assistance or both, provided by the franchisor to the franchisee during the agreement, without prejudice to any supervision faculty to which the parties could freely agree in the contract. In Spain, the franchisor submits the disclosure information 20 days prior to signing the agreement or prior to any payment made by the franchisee to the franchisor. Franchisors are to disclose to the potential franchisee specific information in writing. This information has to be true and not misleading and include: Identification of the franchisor; Justification of ownership or license for use of any trademark or similar sign and judicial claims affecting them as well as the duration of the license; General description of the sector in which the franchise operates; Experience of the franchisor; Contents and characteristics of the franchise and its exploitation; Structure and extension of the network in Spain; Essential elements of the franchise agreement. Franchisors (with some exceptions) should be registered in the Franchisors' Register and provide the requested information. According to the regulation in force in 2010 this obligation has to be met within three months after the start of its activities in Spain. Turkey Franchising is a sui generis contract which bears the characteristics of several explicitly regulated contracts such as; agency, sales contract and so forth. The regulations concerning these kinds of contracts in Turkish Commercial Code and in Turkish Code of Obligations are applied to franchising. Franchising is described in doctrine and has several essential components such as; the independence of the franchisee from the franchisor, the use of know-how and the uniformity of product and services, standard use of the brand and logo, payment of a royalty fee, increasement of sales by the franchisee and continuity. Franchising may be for a determined or undetermined period of time. The undetermined one can only be annulled either by a notice before a reasonable amount of time or by a just cause. The franchising agreement with a determined time period ends within the end of the time period if not specified otherwise in the agreement. However, termination based on just cause is also foreseen for franchising agreement with a determined time period. United Kingdom In the United Kingdom there are no franchise-specific laws; franchises are subject to the same laws that govern other businesses. There is some self-regulation through the British Franchise Association (BFA) and the Quality Franchise Association (QFA). There are a number of franchise businesses which are not members of the BFA and many which do not meet the BFA membership criteria. Part of the BFA's role in self-regulation is to work with franchisors through the application process and recommend changes which will lead to the franchise business meeting BFA standards. A number of businesses that refer to themselves as franchises do not conform to the BFA Code of Ethics are therefore excluded from membership. On 22 May 2007, hearings were held in the UK Parliament concerning citizen-initiated petitions for special regulation of franchising by the government of the UK due to losses incurred by citizens who had invested in franchises. The Minister for Industry and the Regions, Margaret Hodge, conducted hearings but saw no need for any government regulation of franchising with the advice that government regulation of franchising might lull the public into a false sense of security. Mr Mark Prisk MP suggested that the costs of such regulation to the franchisee and franchisor could be prohibitive and would in any case provide a system which mirrored the work already being completed by the BFA. The Minister for Industry and the Regions indicated that if due diligence were performed by the investors and the banks, the current laws governing business contracts in the UK offered sufficient protection for the public and the banks. The debate also made reference to the self-regulatory function performed by the BFA recognizing that the association "punched above its weight". In the 2010 case of MGB Printing v Kall Kwik UK Ltd., the High Court established that a franchisor may assume a duty of care to a franchisee in certain circumstances. Kall Kwik, a design and print franchisor, had incorrectly advised MGB, who was purchasing a franchise, of the costs of undertaking refit work needed to meet Kall Kwik's franchising requirements. In this particular case, Kall Kwik had stated that they would provide professional advice to potential franchisees, and because they had not provided details of the fitting standards which must be met, they had encouraged MGB to rely on the advice offered by themselves. United States Isaac Singer, who made improvements to an existing model of a sewing machine in the 1850s, began one of the first franchising efforts in the United States, followed later by Coca-Cola, Western Union, and by agreements between automobile manufacturers and dealers. Modern franchising came to prominence with the rise of franchise-based food service establishments. In 1932, Howard Deering Johnson established the first modern restaurant franchise based on his successful Quincy, Massachusetts Howard Johnson's restaurant founded in the late 1920s. The idea was to let independent operators use the same name, food, supplies, logo and even building design in exchange for a fee. The growth in franchising accelerated in the 1930s when such chains as Howard Johnson's started to franchise motels. The 1950s saw a boom in franchise chains in conjunction with the development of the U.S. Interstate Highway System and the growing popularity of fast food. The Federal Trade Commission has oversight of franchising via the FTC Franchise Rule. The FTC requires that the franchisee be furnished with a Franchise Disclosure Document (FDD) by the franchisor at least fourteen days before money changes hands or a franchise agreement is signed. Whereas elements of the disclosure may be available from third parties, only that provided by the franchisor can be depended upon. The U.S. Franchise Disclosure Document (FDD) is lengthy (300–700 pp +) and detailed (see Franchise Disclosure Document, above), and generally requires audited financial statements from the franchisor in a particular format, except in some circumstances, such as where a franchisor is new. It must include such data as the names, addresses and telephone numbers of the franchisees in the licensed territory (who may be contacted and consulted before negotiations), estimate of total franchise revenues and franchisor profitability. Individual states may require the FDD to contain their own specific requirements, but the requirements in state disclosure documents must be in compliance with the federal rule that governs federal regulatory policy. There is no private right of action of action under the FTC rule for franchisor violation of the rule, but fifteen or more of the states have passed statutes that provide this right of action to franchisees when fraud can be proven under these special statutes. The majority of franchisors have inserted mandatory arbitration clauses into their agreements with their franchisees, some of which the U.S. Supreme Court has dealt with. In response to the implementation of California Assembly Bill 5 (2019) which limits the use of classifying workers as independent contractors rather than employees in California, the United States Court of Appeals for the Ninth Circuit reinstated its decision in Vazquez v. Jan-Pro which impacts California franchise law and California independent contractor law by making it unclear that if a franchisor licenses its trademark to
theory, use of graphical methods in the many-body problem shows that this formalism is flexible enough to deal with phenomena of nonperturbative characters ... Some modification of the Feynman rules of calculation may well outlive the elaborate mathematical structure of local canonical quantum field theory ... Currently, there are no opposing opinions. In quantum field theories the Feynman diagrams are obtained from a Lagrangian by Feynman rules. Dimensional regularization is a method for regularizing integrals in the evaluation of Feynman diagrams; it assigns values to them that are meromorphic functions of an auxiliary complex parameter , called the dimension. Dimensional regularization writes a Feynman integral as an integral depending on the spacetime dimension and spacetime points. Particle-path interpretation A Feynman diagram is a representation of quantum field theory processes in terms of particle interactions. The particles are represented by the lines of the diagram, which can be squiggly or straight, with an arrow or without, depending on the type of particle. A point where lines connect to other lines is a vertex, and this is where the particles meet and interact: by emitting or absorbing new particles, deflecting one another, or changing type. There are three different types of lines: internal lines connect two vertices, incoming lines extend from "the past" to a vertex and represent an initial state, and outgoing lines extend from a vertex to "the future" and represent the final state (the latter two are also known as external lines). Traditionally, the bottom of the diagram is the past and the top the future; other times, the past is to the left and the future to the right. When calculating correlation functions instead of scattering amplitudes, there is no past and future and all the lines are internal. The particles then begin and end on little x's, which represent the positions of the operators whose correlation is being calculated. Feynman diagrams are a pictorial representation of a contribution to the total amplitude for a process that can happen in several different ways. When a group of incoming particles are to scatter off each other, the process can be thought of as one where the particles travel over all possible paths, including paths that go backward in time. Feynman diagrams are often confused with spacetime diagrams and bubble chamber images because they all describe particle scattering. Feynman diagrams are graphs that represent the interaction of particles rather than the physical position of the particle during a scattering process. Unlike a bubble chamber picture, only the sum of all the Feynman diagrams represent any given particle interaction; particles do not choose a particular diagram each time they interact. The law of summation is in accord with the principle of superposition—every diagram contributes to the total amplitude for the process. Description A Feynman diagram represents a perturbative contribution to the amplitude of a quantum transition from some initial quantum state to some final quantum state. For example, in the process of electron-positron annihilation the initial state is one electron and one positron, the final state: two photons. The initial state is often assumed to be at the left of the diagram and the final state at the right (although other conventions are also used quite often). A Feynman diagram consists of points, called vertices, and lines attached to the vertices. The particles in the initial state are depicted by lines sticking out in the direction of the initial state (e.g., to the left), the particles in the final state are represented by lines sticking out in the direction of the final state (e.g., to the right). In QED there are two types of particles: matter particles such as electrons or positrons (called fermions) and exchange particles (called gauge bosons). They are represented in Feynman diagrams as follows: Electron in the initial state is represented by a solid line, with an arrow indicating the spin of the particle e.g. pointing toward the vertex (→•). Electron in the final state is represented by a line, with an arrow indicating the spin of the particle e.g. pointing away from the vertex: (•→). Positron in the initial state is represented by a solid line, with an arrow indicating the spin of the particle e.g. pointing away from the vertex: (←•). Positron in the final state is represented by a line, with an arrow indicating the spin of the particle e.g. pointing toward the vertex: (•←). Virtual Photon in the initial and the final state is represented by a wavy line (~• and •~). In QED a vertex always has three lines attached to it: one bosonic line, one fermionic line with arrow toward the vertex, and one fermionic line with arrow away from the vertex. The vertices might be connected by a bosonic or fermionic propagator. A bosonic propagator is represented by a wavy line connecting two vertices (•~•). A fermionic propagator is represented by a solid line (with an arrow in one or another direction) connecting two vertices, (•←•). The number of vertices gives the order of the term in the perturbation series expansion of the transition amplitude. Electron–positron annihilation example The electron–positron annihilation interaction: e+ + e− → 2γ has a contribution from the second order Feynman diagram shown adjacent: In the initial state (at the bottom; early time) there is one electron (e−) and one positron (e+) and in the final state (at the top; late time) there are two photons (γ). Canonical quantization formulation The probability amplitude for a transition of a quantum system (between asymptotically free states) from the initial state to the final state is given by the matrix element where is the -matrix. In terms of the time-evolution operator , it is simply In the interaction picture, this expands to where is the interaction Hamiltonian and signifies the time-ordered product of operators. Dyson's formula expands the time-ordered matrix exponential into a perturbation series in the powers of the interaction Hamiltonian density, Equivalently, with the interaction Lagrangian , it is A Feynman diagram is a graphical representation of a single summand in the Wick's expansion of the time-ordered product in the th-order term of the Dyson series of the -matrix, where signifies the normal-ordered product of the operators and (±) takes care of the possible sign change when commuting the fermionic operators to bring them together for a contraction (a propagator). Feynman rules The diagrams are drawn according to the Feynman rules, which depend upon the interaction Lagrangian. For the QED interaction Lagrangian describing the interaction of a fermionic field with a bosonic gauge field , the Feynman rules can be formulated in coordinate space as follows: Each integration coordinate is represented by a point (sometimes called a vertex); A bosonic propagator is represented by a wiggly line connecting two points; A fermionic propagator is represented by a solid line connecting two points; A bosonic field is represented by a wiggly line attached to the point ; A fermionic field is represented by a solid line attached to the point with an arrow toward the point; An anti-fermionic field is represented by a solid line attached to the point with an arrow away from the point; Example: second order processes in QED The second order perturbation term in the -matrix is Scattering of fermions The Wick's expansion of the integrand gives (among others) the following term where is the electromagnetic contraction (propagator) in the Feynman gauge. This term is represented by the Feynman diagram at the right. This diagram gives contributions to the following processes: e− e− scattering (initial state at the right, final state at the left of the diagram); e+ e+ scattering (initial state at the left, final state at the right of the diagram); e− e+ scattering (initial state at the bottom/top, final state at the top/bottom of the diagram). Compton scattering and annihilation/generation of e− e+ pairs Another interesting term in the expansion is where is the fermionic contraction (propagator). Path integral formulation In a path integral, the field Lagrangian, integrated over all possible field histories, defines the probability amplitude to go from one field configuration to another. In order to make sense, the field theory should have a well-defined ground state, and the integral should be performed a little bit rotated into imaginary time, i.e. a Wick rotation. The path integral formalism is completely equivalent to the canonical operator formalism above. Scalar field Lagrangian A simple example is the free relativistic scalar field in dimensions, whose action integral is: The probability amplitude for a process is: where and are space-like hypersurfaces that define the boundary conditions. The collection of all the on the starting hypersurface give the initial value of the field, analogous to the starting position for a point particle, and the field values at each point of the final hypersurface defines the final field value, which is allowed to vary, giving a different amplitude to end up at different values. This is the field-to-field transition amplitude. The path integral gives the expectation value of operators between the initial and final state: and in the limit that A and B recede to the infinite past and the infinite future, the only contribution that matters is from the ground state (this is only rigorously true if the path-integral is defined slightly rotated into imaginary time). The path integral can be thought of as analogous to a probability distribution, and it is convenient to define it so that multiplying by a constant doesn't change anything: The normalization factor on the bottom is called the partition function for the field, and it coincides with the statistical mechanical partition function at zero temperature when rotated into imaginary time. The initial-to-final amplitudes are ill-defined if one thinks of the continuum limit right from the beginning, because the fluctuations in the field can become unbounded. So the path-integral can be thought of as on a discrete square lattice, with lattice spacing and the limit should be taken carefully. If the final results do not depend on the shape of the lattice or the value of , then the continuum limit exists. On a lattice On a lattice, (i), the field can be expanded in Fourier modes: Here the integration domain is over restricted to a cube of side length , so that large values of are not allowed. It is important to note that the -measure contains the factors of 2 from Fourier transforms, this is the best standard convention for -integrals in QFT. The lattice means that fluctuations at large are not allowed to contribute right away, they only start to contribute in the limit . Sometimes, instead of a lattice, the field modes are just cut off at high values of instead. It is also convenient from time to time to consider the space-time volume to be finite, so that the modes are also a lattice. This is not strictly as necessary as the space-lattice limit, because interactions in are not localized, but it is convenient for keeping track of the factors in front of the -integrals and the momentum-conserving delta functions that will arise. On a lattice, (ii), the action needs to be discretized: where is a pair of nearest lattice neighbors and . The discretization should be thought of as defining what the derivative means. In terms of the lattice Fourier modes, the action can be written: For near zero this is: Now we have the continuum Fourier transform of the original action. In finite volume, the quantity is not infinitesimal, but becomes the volume of a box made by neighboring Fourier modes, or . The field is real-valued, so the Fourier transform obeys: In terms of real and imaginary parts, the real part of is an even function of , while the imaginary part is odd. The Fourier transform avoids double-counting, so that it can be written: over an integration domain that integrates over each pair exactly once. For a complex scalar field with action the Fourier transform is unconstrained: and the integral is over all . Integrating over all different values of is equivalent to integrating over all Fourier modes, because taking a Fourier transform is a unitary linear transformation of field coordinates. When you change coordinates in a multidimensional integral by a linear transformation, the value of the new integral is given by the determinant of the transformation matrix. If then If is a rotation, then so that , and the sign depends on whether the rotation includes a reflection or not. The matrix that changes coordinates from to can be read off from the definition of a Fourier transform. and the Fourier inversion theorem tells you the inverse: which is the complex conjugate-transpose, up to factors of 2. On a finite volume lattice, the determinant is nonzero and independent of the field values. and the path integral is a separate factor at each value of . The factor is the infinitesimal volume of a discrete cell in -space, in a square lattice box where is the side-length of the box. Each separate factor is an oscillatory Gaussian, and the width of the Gaussian diverges as the volume goes to infinity. In imaginary time, the Euclidean action becomes positive definite, and can be interpreted as a probability distribution. The probability of a field having values is The expectation value of the field is the statistical expectation value of the field when chosen according to the probability distribution: Since the probability of is a product, the value of at each separate value of is independently Gaussian distributed. The variance of the Gaussian is , which is formally infinite, but that just means that the fluctuations are unbounded in infinite volume. In any finite volume, the integral is replaced by a discrete sum, and the variance of the integral is . Monte Carlo The path integral defines a probabilistic algorithm to generate a Euclidean scalar field configuration. Randomly pick the real and imaginary parts of each Fourier mode at wavenumber to be a Gaussian random variable with variance . This generates a configuration at random, and the Fourier transform gives . For real scalar fields, the algorithm must generate only one of each pair , and make the second the complex conjugate of the first. To find any correlation function, generate a field again and again by this procedure, and find the statistical average: where is the number of configurations, and the sum is of the product of the field values on each configuration. The Euclidean correlation function is just the same as the correlation function in statistics or statistical mechanics. The quantum mechanical correlation functions are an analytic continuation of the Euclidean correlation functions. For free fields with a quadratic action, the probability distribution is a high-dimensional Gaussian, and the statistical average is given by an explicit formula. But the Monte Carlo method also works well for bosonic interacting field theories where there is no closed form for the correlation functions. Scalar propagator Each mode is independently Gaussian distributed. The expectation of field modes is easy to calculate: for , since then the two Gaussian random variables are independent and both have zero mean. in finite volume , when the two -values coincide, since this is the variance of the Gaussian. In the infinite volume limit, Strictly speaking, this is an approximation: the lattice propagator is: But near , for field fluctuations long compared to the lattice spacing, the two forms coincide. It is important to emphasize that the delta functions contain factors of 2, so that they cancel out the 2 factors in the measure for integrals. where is the ordinary one-dimensional Dirac delta function. This convention for delta-functions is not universal—some authors keep the factors of 2 in the delta functions (and in the -integration) explicit. Equation of motion The form of the propagator can be more easily found by using the equation of motion for the field. From the Lagrangian, the equation of motion is: and in an expectation value, this says: Where the derivatives act on , and the identity is true everywhere except when and coincide, and the operator order matters. The form of the singularity can be understood from the canonical commutation relations to be a delta-function. Defining the (Euclidean) Feynman propagator as the Fourier transform of the time-ordered two-point function (the one that comes from the path-integral): So that: If the equations of motion are linear, the propagator will always be the reciprocal of the quadratic-form matrix that defines the free Lagrangian, since this gives the equations of motion. This is also easy to see directly from the path integral. The factor of disappears in the Euclidean theory. Wick theorem Because each field mode is an independent Gaussian, the expectation values for the product of many field modes obeys Wick's theorem: is zero unless the field modes coincide in pairs. This means that it is zero for an odd number of , and for an even number of , it is equal to a contribution from each pair separately, with a delta function. where the sum is over each partition of the field modes into pairs, and the product is over the pairs. For example, An interpretation of Wick's theorem is that each field insertion can be thought of as a dangling line, and the expectation value is calculated by linking up the lines in pairs, putting a delta function factor that ensures that the momentum of each partner in the pair is equal, and dividing by the propagator. Higher Gaussian moments — completing Wick's theorem There is a subtle point left before Wick's theorem is proved—what if more than two of the s have the same momentum? If it's an odd number, the integral is zero; negative values cancel with the positive values. But if the number is even, the integral is positive. The previous demonstration assumed that the s would only match up in pairs. But the theorem is correct even when arbitrarily many of the are equal, and this is a notable property of Gaussian integration: Dividing by , If Wick's theorem were correct, the higher moments would be given by all possible pairings of a list of different : where the are all the same variable, the index is just to keep track of the number of ways to pair them. The first can be paired with others, leaving . The next unpaired can be paired with different leaving , and so on. This means that Wick's theorem, uncorrected, says that the expectation value of should be: and this is in fact the correct answer. So Wick's theorem holds no matter how many of the momenta of the internal variables coincide. Interaction Interactions are represented by higher order contributions, since quadratic contributions are always Gaussian. The simplest interaction is the quartic self-interaction, with an action: The reason for the combinatorial factor 4! will be clear soon. Writing the action in terms of the lattice (or continuum) Fourier modes: Where is the free action, whose correlation functions are given by Wick's theorem. The exponential of in the path integral can be expanded in powers of , giving a series of corrections to the free action. The path integral for the interacting action is then a power series of corrections to the free action. The term represented by should be thought of as four half-lines, one for each factor of . The half-lines meet at a vertex, which contributes a delta-function that ensures that the sum of the momenta are all equal. To compute a correlation function in the interacting theory, there is a contribution from the terms now. For example, the path-integral for the four-field correlator: which in the free field was only nonzero when the momenta were equal in pairs, is now nonzero for all values of . The momenta of the insertions can now match up with the momenta of the s in the expansion. The insertions should also be thought of as half-lines, four in this case, which carry a momentum , but one that is not integrated. The lowest-order contribution comes from the first nontrivial term in the Taylor expansion of the action. Wick's theorem requires that the momenta in the half-lines, the factors in , should match up with the momenta of the external half-lines in pairs. The new contribution is equal to: The 4! inside is canceled because there are exactly 4! ways to match the half-lines in to the external half-lines. Each of these different ways of matching the half-lines together in pairs contributes exactly once, regardless of the values of , by Wick's theorem. Feynman diagrams The expansion of the action in powers of gives a series of terms with progressively higher number of s. The contribution from the term with exactly s is called th order. The th order terms has: internal half-lines, which are the factors of from the s. These all end on a vertex, and are integrated over all possible . external half-lines, which are the come from the insertions in the integral. By Wick's theorem, each pair of half-lines must be paired together to make a line, and this line gives a factor of which multiplies the contribution. This means that the two half-lines that make a line are forced to have equal and opposite momentum. The line itself should be labelled by an arrow, drawn parallel to the line, and labeled by the momentum in the line . The half-line at the tail end of the arrow carries momentum , while the half-line at the head-end carries momentum . If one of the two half-lines is external, this kills the integral over the internal , since it forces the internal to be equal to the external . If both are internal, the integral over remains. The diagrams that are formed by linking the half-lines in the s with the external half-lines, representing insertions, are the Feynman diagrams of this theory. Each line carries a factor of , the propagator, and either goes from vertex to vertex, or ends at an insertion. If it is internal, it is integrated over. At each vertex, the total incoming is equal to the total outgoing . The number of ways of making a diagram by joining half-lines into lines almost completely cancels the factorial factors coming from the Taylor series of the exponential and the 4! at each vertex. Loop order A forest diagram is one where all the internal lines have momentum that is completely determined by the external lines and the condition that the incoming and outgoing momentum are equal at each vertex. The contribution of these diagrams is a product of propagators, without any integration. A tree diagram is a connected forest diagram. An example of a tree diagram is the one where each of four external lines end on an . Another is when three external lines end on an , and the remaining half-line joins up with another , and the remaining half-lines of this run off to external lines. These are all also forest diagrams (as every tree is a forest); an example of a forest that is not a tree is when eight external lines end on two s. It is easy to verify that in all these cases, the momenta on all the internal lines is determined by the external momenta and the condition of momentum conservation in each vertex. A diagram that is not a forest diagram is called a loop diagram, and an example is one where two lines of an are joined to external lines, while the remaining two lines are joined to each other. The two lines joined to each other can have any momentum at all, since they both enter and leave the same vertex. A more complicated example is one where two s are joined to each other by matching the legs one to the other. This diagram has no external lines at all. The reason loop diagrams are called loop diagrams is because the number of -integrals that are left undetermined by momentum conservation is equal to the number of independent closed loops in the diagram, where independent loops are counted as in homology theory. The homology is real-valued (actually valued), the value associated with each line is the momentum. The boundary operator takes each line to the sum of the end-vertices with a positive sign at the head and a negative sign at the tail. The condition that the momentum is conserved is exactly the condition that the boundary of the -valued weighted graph is zero. A set of valid -values can be arbitrarily redefined whenever there is a closed loop. A closed loop is a cyclical path of adjacent vertices that never revisits the same vertex. Such a cycle can be thought of as the boundary of a hypothetical 2-cell. The -labellings of a graph that conserve momentum (i.e. which has zero boundary) up to redefinitions of (i.e. up to boundaries of 2-cells) define the first homology of a graph. The number of independent momenta that are not determined is then equal to the number of independent homology loops. For many graphs, this is equal to the number of loops as counted in the most intuitive way. Symmetry factors The number of ways to form a given Feynman diagram by joining together half-lines is large, and by Wick's theorem, each way of pairing up the half-lines contributes equally. Often, this completely cancels the factorials in the denominator of each term, but the cancellation is sometimes incomplete. The uncancelled denominator is called the symmetry factor of the diagram. The contribution of each diagram to the correlation function must be divided by its symmetry factor. For example, consider the Feynman diagram formed from two external lines joined to one , and the remaining two half-lines in the joined to each other. There are 4 × 3 ways to join the external half-lines to the , and then there is only one way to join the two remaining lines to each other. The comes divided by , but the number of ways to link up the half lines to make the diagram is only 4 × 3, so the contribution of this diagram is divided by two. For another example, consider the diagram formed by joining all the half-lines of one to all the half-lines of another . This diagram is called a vacuum bubble, because it does not link up to any external lines. There are 4! ways to form this diagram, but the denominator includes a 2! (from the expansion of the exponential, there are two s) and two factors of 4!. The contribution is multiplied by = . Another example is the Feynman diagram formed from two s where each links up to two external lines, and the remaining two half-lines of each are joined to each other. The number of ways to link an to two external lines is 4 × 3, and either could link up to either pair, giving an additional factor of 2. The remaining two half-lines in the two s can be linked to each other in two ways, so that the total number of ways to form the diagram is , while the denominator is . The total symmetry factor is 2, and the contribution of this diagram is divided by 2. The symmetry factor theorem gives the symmetry factor for a general diagram: the contribution of each Feynman diagram must be divided by the order of its group of automorphisms, the number of symmetries that it has. An automorphism of a Feynman graph is a permutation of the lines and a permutation of the vertices with the following properties: If a line goes from vertex to vertex , then goes from to . If the line is undirected, as it is for a real scalar field, then can go from to too. If a line ends on an external line, ends on the same external line. If there are different types of lines, should preserve the type. This theorem has an interpretation in terms of particle-paths: when identical particles are present, the integral over all intermediate particles must not double-count states that differ only by interchanging identical particles. Proof: To prove this theorem, label all the internal and external lines of a diagram with a unique name. Then form the diagram by linking a half-line to a name and then to the other half line. Now count the number of ways to form the named diagram. Each permutation of the s gives a different pattern of linking names to half-lines, and this is a factor of . Each permutation of the half-lines in a single gives a factor of 4!. So a named diagram can be formed in exactly as many ways as the denominator of the Feynman expansion. But the number of unnamed diagrams is smaller than the number of named diagram by the order of the automorphism group of the graph. Connected diagrams: linked-cluster theorem Roughly speaking, a Feynman diagram is called connected if all vertices and propagator lines are linked by a sequence of vertices and propagators of the diagram itself. If one views it as an undirected graph it is connected. The remarkable relevance of such diagrams in QFTs is due to the fact that they are sufficient to determine the quantum partition function . More precisely, connected Feynman diagrams determine To see this, one should recall that with constructed from some (arbitrary) Feynman diagram that can be thought to consist of several connected components . If one encounters (identical) copies of a component within the Feynman diagram one has to include a symmetry factor . However, in the end each contribution of a Feynman diagram to the partition function has the generic form where labels the (infinitely) many connected Feynman diagrams possible. A
independent and both have zero mean. in finite volume , when the two -values coincide, since this is the variance of the Gaussian. In the infinite volume limit, Strictly speaking, this is an approximation: the lattice propagator is: But near , for field fluctuations long compared to the lattice spacing, the two forms coincide. It is important to emphasize that the delta functions contain factors of 2, so that they cancel out the 2 factors in the measure for integrals. where is the ordinary one-dimensional Dirac delta function. This convention for delta-functions is not universal—some authors keep the factors of 2 in the delta functions (and in the -integration) explicit. Equation of motion The form of the propagator can be more easily found by using the equation of motion for the field. From the Lagrangian, the equation of motion is: and in an expectation value, this says: Where the derivatives act on , and the identity is true everywhere except when and coincide, and the operator order matters. The form of the singularity can be understood from the canonical commutation relations to be a delta-function. Defining the (Euclidean) Feynman propagator as the Fourier transform of the time-ordered two-point function (the one that comes from the path-integral): So that: If the equations of motion are linear, the propagator will always be the reciprocal of the quadratic-form matrix that defines the free Lagrangian, since this gives the equations of motion. This is also easy to see directly from the path integral. The factor of disappears in the Euclidean theory. Wick theorem Because each field mode is an independent Gaussian, the expectation values for the product of many field modes obeys Wick's theorem: is zero unless the field modes coincide in pairs. This means that it is zero for an odd number of , and for an even number of , it is equal to a contribution from each pair separately, with a delta function. where the sum is over each partition of the field modes into pairs, and the product is over the pairs. For example, An interpretation of Wick's theorem is that each field insertion can be thought of as a dangling line, and the expectation value is calculated by linking up the lines in pairs, putting a delta function factor that ensures that the momentum of each partner in the pair is equal, and dividing by the propagator. Higher Gaussian moments — completing Wick's theorem There is a subtle point left before Wick's theorem is proved—what if more than two of the s have the same momentum? If it's an odd number, the integral is zero; negative values cancel with the positive values. But if the number is even, the integral is positive. The previous demonstration assumed that the s would only match up in pairs. But the theorem is correct even when arbitrarily many of the are equal, and this is a notable property of Gaussian integration: Dividing by , If Wick's theorem were correct, the higher moments would be given by all possible pairings of a list of different : where the are all the same variable, the index is just to keep track of the number of ways to pair them. The first can be paired with others, leaving . The next unpaired can be paired with different leaving , and so on. This means that Wick's theorem, uncorrected, says that the expectation value of should be: and this is in fact the correct answer. So Wick's theorem holds no matter how many of the momenta of the internal variables coincide. Interaction Interactions are represented by higher order contributions, since quadratic contributions are always Gaussian. The simplest interaction is the quartic self-interaction, with an action: The reason for the combinatorial factor 4! will be clear soon. Writing the action in terms of the lattice (or continuum) Fourier modes: Where is the free action, whose correlation functions are given by Wick's theorem. The exponential of in the path integral can be expanded in powers of , giving a series of corrections to the free action. The path integral for the interacting action is then a power series of corrections to the free action. The term represented by should be thought of as four half-lines, one for each factor of . The half-lines meet at a vertex, which contributes a delta-function that ensures that the sum of the momenta are all equal. To compute a correlation function in the interacting theory, there is a contribution from the terms now. For example, the path-integral for the four-field correlator: which in the free field was only nonzero when the momenta were equal in pairs, is now nonzero for all values of . The momenta of the insertions can now match up with the momenta of the s in the expansion. The insertions should also be thought of as half-lines, four in this case, which carry a momentum , but one that is not integrated. The lowest-order contribution comes from the first nontrivial term in the Taylor expansion of the action. Wick's theorem requires that the momenta in the half-lines, the factors in , should match up with the momenta of the external half-lines in pairs. The new contribution is equal to: The 4! inside is canceled because there are exactly 4! ways to match the half-lines in to the external half-lines. Each of these different ways of matching the half-lines together in pairs contributes exactly once, regardless of the values of , by Wick's theorem. Feynman diagrams The expansion of the action in powers of gives a series of terms with progressively higher number of s. The contribution from the term with exactly s is called th order. The th order terms has: internal half-lines, which are the factors of from the s. These all end on a vertex, and are integrated over all possible . external half-lines, which are the come from the insertions in the integral. By Wick's theorem, each pair of half-lines must be paired together to make a line, and this line gives a factor of which multiplies the contribution. This means that the two half-lines that make a line are forced to have equal and opposite momentum. The line itself should be labelled by an arrow, drawn parallel to the line, and labeled by the momentum in the line . The half-line at the tail end of the arrow carries momentum , while the half-line at the head-end carries momentum . If one of the two half-lines is external, this kills the integral over the internal , since it forces the internal to be equal to the external . If both are internal, the integral over remains. The diagrams that are formed by linking the half-lines in the s with the external half-lines, representing insertions, are the Feynman diagrams of this theory. Each line carries a factor of , the propagator, and either goes from vertex to vertex, or ends at an insertion. If it is internal, it is integrated over. At each vertex, the total incoming is equal to the total outgoing . The number of ways of making a diagram by joining half-lines into lines almost completely cancels the factorial factors coming from the Taylor series of the exponential and the 4! at each vertex. Loop order A forest diagram is one where all the internal lines have momentum that is completely determined by the external lines and the condition that the incoming and outgoing momentum are equal at each vertex. The contribution of these diagrams is a product of propagators, without any integration. A tree diagram is a connected forest diagram. An example of a tree diagram is the one where each of four external lines end on an . Another is when three external lines end on an , and the remaining half-line joins up with another , and the remaining half-lines of this run off to external lines. These are all also forest diagrams (as every tree is a forest); an example of a forest that is not a tree is when eight external lines end on two s. It is easy to verify that in all these cases, the momenta on all the internal lines is determined by the external momenta and the condition of momentum conservation in each vertex. A diagram that is not a forest diagram is called a loop diagram, and an example is one where two lines of an are joined to external lines, while the remaining two lines are joined to each other. The two lines joined to each other can have any momentum at all, since they both enter and leave the same vertex. A more complicated example is one where two s are joined to each other by matching the legs one to the other. This diagram has no external lines at all. The reason loop diagrams are called loop diagrams is because the number of -integrals that are left undetermined by momentum conservation is equal to the number of independent closed loops in the diagram, where independent loops are counted as in homology theory. The homology is real-valued (actually valued), the value associated with each line is the momentum. The boundary operator takes each line to the sum of the end-vertices with a positive sign at the head and a negative sign at the tail. The condition that the momentum is conserved is exactly the condition that the boundary of the -valued weighted graph is zero. A set of valid -values can be arbitrarily redefined whenever there is a closed loop. A closed loop is a cyclical path of adjacent vertices that never revisits the same vertex. Such a cycle can be thought of as the boundary of a hypothetical 2-cell. The -labellings of a graph that conserve momentum (i.e. which has zero boundary) up to redefinitions of (i.e. up to boundaries of 2-cells) define the first homology of a graph. The number of independent momenta that are not determined is then equal to the number of independent homology loops. For many graphs, this is equal to the number of loops as counted in the most intuitive way. Symmetry factors The number of ways to form a given Feynman diagram by joining together half-lines is large, and by Wick's theorem, each way of pairing up the half-lines contributes equally. Often, this completely cancels the factorials in the denominator of each term, but the cancellation is sometimes incomplete. The uncancelled denominator is called the symmetry factor of the diagram. The contribution of each diagram to the correlation function must be divided by its symmetry factor. For example, consider the Feynman diagram formed from two external lines joined to one , and the remaining two half-lines in the joined to each other. There are 4 × 3 ways to join the external half-lines to the , and then there is only one way to join the two remaining lines to each other. The comes divided by , but the number of ways to link up the half lines to make the diagram is only 4 × 3, so the contribution of this diagram is divided by two. For another example, consider the diagram formed by joining all the half-lines of one to all the half-lines of another . This diagram is called a vacuum bubble, because it does not link up to any external lines. There are 4! ways to form this diagram, but the denominator includes a 2! (from the expansion of the exponential, there are two s) and two factors of 4!. The contribution is multiplied by = . Another example is the Feynman diagram formed from two s where each links up to two external lines, and the remaining two half-lines of each are joined to each other. The number of ways to link an to two external lines is 4 × 3, and either could link up to either pair, giving an additional factor of 2. The remaining two half-lines in the two s can be linked to each other in two ways, so that the total number of ways to form the diagram is , while the denominator is . The total symmetry factor is 2, and the contribution of this diagram is divided by 2. The symmetry factor theorem gives the symmetry factor for a general diagram: the contribution of each Feynman diagram must be divided by the order of its group of automorphisms, the number of symmetries that it has. An automorphism of a Feynman graph is a permutation of the lines and a permutation of the vertices with the following properties: If a line goes from vertex to vertex , then goes from to . If the line is undirected, as it is for a real scalar field, then can go from to too. If a line ends on an external line, ends on the same external line. If there are different types of lines, should preserve the type. This theorem has an interpretation in terms of particle-paths: when identical particles are present, the integral over all intermediate particles must not double-count states that differ only by interchanging identical particles. Proof: To prove this theorem, label all the internal and external lines of a diagram with a unique name. Then form the diagram by linking a half-line to a name and then to the other half line. Now count the number of ways to form the named diagram. Each permutation of the s gives a different pattern of linking names to half-lines, and this is a factor of . Each permutation of the half-lines in a single gives a factor of 4!. So a named diagram can be formed in exactly as many ways as the denominator of the Feynman expansion. But the number of unnamed diagrams is smaller than the number of named diagram by the order of the automorphism group of the graph. Connected diagrams: linked-cluster theorem Roughly speaking, a Feynman diagram is called connected if all vertices and propagator lines are linked by a sequence of vertices and propagators of the diagram itself. If one views it as an undirected graph it is connected. The remarkable relevance of such diagrams in QFTs is due to the fact that they are sufficient to determine the quantum partition function . More precisely, connected Feynman diagrams determine To see this, one should recall that with constructed from some (arbitrary) Feynman diagram that can be thought to consist of several connected components . If one encounters (identical) copies of a component within the Feynman diagram one has to include a symmetry factor . However, in the end each contribution of a Feynman diagram to the partition function has the generic form where labels the (infinitely) many connected Feynman diagrams possible. A scheme to successively create such contributions from the to is obtained by and therefore yields To establish the normalization one simply calculates all connected vacuum diagrams, i.e., the diagrams without any sources (sometimes referred to as external legs of a Feynman diagram). Vacuum bubbles An immediate consequence of the linked-cluster theorem is that all vacuum bubbles, diagrams without external lines, cancel when calculating correlation functions. A correlation function is given by a ratio of path-integrals: The top is the sum over all Feynman diagrams, including disconnected diagrams that do not link up to external lines at all. In terms of the connected diagrams, the numerator includes the same contributions of vacuum bubbles as the denominator: Where the sum over diagrams includes only those diagrams each of whose connected components end on at least one external line. The vacuum bubbles are the same whatever the external lines, and give an overall multiplicative factor. The denominator is the sum over all vacuum bubbles, and dividing gets rid of the second factor. The vacuum bubbles then are only useful for determining itself, which from the definition of the path integral is equal to: where is the energy density in the vacuum. Each vacuum bubble contains a factor of zeroing the total at each vertex, and when there are no external lines, this contains a factor of , because the momentum conservation is over-enforced. In finite volume, this factor can be identified as the total volume of space time. Dividing by the volume, the remaining integral for the vacuum bubble has an interpretation: it is a contribution to the energy density of the vacuum. Sources Correlation functions are the sum of the connected Feynman diagrams, but the formalism treats the connected and disconnected diagrams differently. Internal lines end on vertices, while external lines go off to insertions. Introducing sources unifies the formalism, by making new vertices where one line can end. Sources are external fields, fields that contribute to the action, but are not dynamical variables. A scalar field source is another scalar field that contributes a term to the (Lorentz) Lagrangian: In the Feynman expansion, this contributes H terms with one half-line ending on a vertex. Lines in a Feynman diagram can now end either on an vertex, or on an vertex, and only one line enters an vertex. The Feynman rule for an vertex is that a line from an with momentum gets a factor of . The sum of the connected diagrams in the presence of sources includes a term for each connected diagram in the absence of sources, except now the diagrams can end on the source. Traditionally, a source is represented by a little "×" with one line extending out, exactly as an insertion. where is the connected diagram with external lines carrying momentum as indicated. The sum is over all connected diagrams, as before. The field is not dynamical, which means that there is no path integral over : is just a parameter in the Lagrangian, which varies from point to point. The path integral for the field is: and it is a function of the values of at every point. One way to interpret this expression is that it is taking the Fourier transform in field space. If there is a probability density on , the Fourier transform of the probability density is: The Fourier transform is the expectation of an oscillatory exponential. The path integral in the presence of a source is: which, on a lattice, is the product of an oscillatory exponential for each field value: The Fourier transform of a delta-function is a constant, which gives a formal expression for a delta function: This tells you what a field delta function looks like in a path-integral. For two scalar fields and , which integrates over the Fourier transform coordinate, over . This expression is useful for formally changing field coordinates in the path integral, much as a delta function is used to change coordinates in an ordinary multi-dimensional integral. The partition function is now a function of the field , and the physical partition function is the value when is the zero function: The correlation functions are derivatives of the path integral with respect to the source: In Euclidean space, source contributions to the action can still appear with a factor of , so that they still do a Fourier transform. Spin ; "photons" and "ghosts" Spin : Grassmann integrals The field path integral can be extended to the Fermi case, but only if the notion of integration is expanded. A Grassmann integral of a free Fermi field is a high-dimensional determinant or Pfaffian, which defines the new type of Gaussian integration appropriate for Fermi fields. The two fundamental formulas of Grassmann integration are: where is an arbitrary matrix and are independent Grassmann variables for each index , and where is an antisymmetric matrix, is a collection of Grassmann variables, and the is to prevent double-counting (since ). In matrix notation, where and are Grassmann-valued row vectors, and are Grassmann-valued column vectors, and is a real-valued matrix: where the last equality is a consequence of the translation invariance of the Grassmann integral. The Grassmann variables are external sources for , and differentiating with respect to pulls down factors of . again, in a schematic matrix notation. The meaning of the formula above is that the derivative with respect to the appropriate component of and gives the matrix element of . This is exactly analogous to the bosonic path integration formula for a Gaussian integral of a complex bosonic field: So that the propagator is the inverse of the matrix in the quadratic part of the action in both the Bose and Fermi case. For real Grassmann fields, for Majorana fermions, the path integral is a Pfaffian times a source quadratic form, and the formulas give the square root of the determinant, just as they do for real Bosonic fields. The propagator is still the inverse of the quadratic part. The free Dirac Lagrangian: formally gives the equations of motion and the anticommutation relations of the Dirac field, just as the Klein Gordon Lagrangian in an ordinary path integral gives the equations of motion and commutation relations of the scalar field. By using the spatial Fourier transform of the Dirac field as a new basis for the Grassmann algebra, the quadratic part of the Dirac action becomes simple to invert: The propagator is the inverse of the matrix linking and , since different values of do not mix together. The analog of Wick's theorem matches and in pairs: where S is the sign of the permutation that reorders the sequence of and to put the ones that are paired up to make the delta-functions next to each other, with the coming right before the . Since a pair is a commuting element of the Grassmann algebra, it doesn't matter what order the pairs are in. If more than one pair have the same , the integral is zero, and it is easy to check that the sum over pairings gives zero in this case (there are always an even number of them). This is the Grassmann analog of the higher Gaussian moments that completed the Bosonic Wick's theorem earlier. The rules for spin- Dirac particles are as follows: The propagator is the inverse of the Dirac operator, the lines have arrows just as for a complex scalar field, and the diagram acquires an overall factor of −1 for each closed Fermi loop. If there are an odd number of Fermi loops, the diagram changes sign. Historically, the −1 rule was very difficult for Feynman to discover. He discovered it after a long process of trial and error, since he lacked a proper theory of Grassmann integration. The rule follows from the observation that the number of Fermi lines at a vertex is always even. Each term in the Lagrangian must always be Bosonic. A Fermi loop is counted by following Fermionic lines until one comes back to the starting point, then removing those lines from the diagram. Repeating this process eventually erases all the Fermionic lines: this is the Euler algorithm to 2-color a graph, which works whenever each vertex has even degree. The number of steps in the Euler algorithm is only equal to the number of independent Fermionic homology cycles in the common special case that all terms in the Lagrangian are exactly quadratic in the Fermi fields, so that each vertex has exactly two Fermionic lines. When there are four-Fermi interactions (like in the Fermi effective theory of the weak nuclear interactions) there are more -integrals than Fermi loops. In this case, the counting rule should apply the Euler algorithm by pairing up the Fermi lines at each vertex into pairs that together form a bosonic factor of the term in the Lagrangian, and when entering a vertex by one line, the algorithm should always leave with the partner line. To clarify and prove the rule, consider a Feynman diagram formed from vertices, terms in the Lagrangian, with Fermion fields. The full term is Bosonic, it is a commuting element of the Grassmann algebra, so the order in which the vertices appear is not important. The Fermi lines are linked into loops, and when traversing the loop, one can reorder the vertex terms one after the other as one goes around without any sign cost. The exception is when you return to the starting point, and the final half-line must be joined with the unlinked first half-line. This requires one permutation to move the last to go
our society’s greatest causes of disease and death." Another American food writer, Mark Kurlansky, links this vision of food directly to food writing, giving the genre's scope and range when he observes: “Food is about agriculture, about ecology, about man’s relationship with nature, about the climate, about nation-building, cultural struggles, friends and enemies, alliances, wars, religion. It is about memory and tradition and, at times, even about sex.”Because food writing is topic centered, it is not a genre in itself, but a writing that uses a wide range of traditional genres, including recipes, journalism, memoir, and travelogues. Food writing can refer to poetry and fiction, such as Marcel Proust’s À la recherche du temps perdu (In Search of Lost Time), with its famous passage where the narrator recollects his childhood memories as a result of sipping tea and eating a madeleine; or Robert Burns' poem "Address to a Haggis", 1787. Charles Dickens, a notable novelist wrote memorably about food, e.g., in his A Christmas Carol (1843). Often, food writing is used to specify writing that takes a more literary approach to food, such as that of the famous American food writer M. F. K. Fisher, who describes her writing about food as follows: It seems to me our three basic needs, for food and security and love, are so mixed and mingled and entwined that we cannot straightly think of one without the others. So it happens that when I write of hunger, I am really writing about love and the hunger for it, and warmth and the love of it and the hunger for it ... and then the warmth and richness and fine reality of hunger satisfied ... and it is all one. In this literary sense, food writing aspires toward more than merely communicating information about food; it also aims to provide readers with an aesthetic experience. Another American food writer, Adam Gopnik, divides food writing into two categories, "the mock epic and the mystical microcosmic," and provides examples of their most noted practitioners: The mock epic (A. J. Liebling, Calvin Trillin, the French writer Robert Courtine, and any good restaurant critic) is essentially comic and treats the small ambitions of the greedy eater as though they were big and noble, spoofing the idea of the heroic while raising the minor subject to at least temporary greatness. The mystical microcosmic, of which Elizabeth David and M. F. K. Fisher are the masters, is essentially poetic, and turns every remembered recipe into a meditation
Adam Gopnik, divides food writing into two categories, "the mock epic and the mystical microcosmic," and provides examples of their most noted practitioners: The mock epic (A. J. Liebling, Calvin Trillin, the French writer Robert Courtine, and any good restaurant critic) is essentially comic and treats the small ambitions of the greedy eater as though they were big and noble, spoofing the idea of the heroic while raising the minor subject to at least temporary greatness. The mystical microcosmic, of which Elizabeth David and M. F. K. Fisher are the masters, is essentially poetic, and turns every remembered recipe into a meditation on hunger and the transience of its fulfillment. Contemporary food writers working in this mode include Ruth Reichl, Betty MacDonald, and Jim Harrison. As a term, "food writing" is a relatively new descriptor. It came into wide use in the 1990s and, unlike "sports writing", or "nature writing", it has yet to be included in the Oxford English Dictionary. Consequently, definitions of food writing when applied to historical works are retrospective. Classics of food writing, such as the 18th century French gastronome Jean Anthelme Brillat-Savarin's La physiologie du goût (The Physiology of Taste), pre-date the term and have helped to shape its meaning. In academia Food writer Michael Pollan holds the Knight Professorship of Science and Environmental Journalism at the University of California, Berkeley and since 2013 has directed the 11th Hour Food and Farming Journalism Fellowship Program. In 2013, the University of South Florida St. Petersburg began a graduate certificate program in Food Writing and Photography, created by longtime Tampa Bay Times food and travel editor Janet K. Keeler. Notable food writers and books Authors This is a list of some prominent writers on food, cooking, dining, and cultural history related to food. Karen Anand Robert Appelbaum Archestratus Athenaeus James Beard Maggie Beer Mrs Beeton Edward Behr Raymond Blanc Anthony Bourdain Jean-Anthelme Brillat-Savarin Alton Brown Robert Farrar Capon Julia Child Mei Chin Craig Claiborne Brendan Connell Shirley Corriher Fanny Cradock Elizabeth Craig Curnonsky Tarla Dalal Elizabeth David Alan Davidson Emiko Davies Giada De Laurentiis Avis DeVoto Andrew Dornenburg Escoffier Judith Lynn Ferguson Susie Fishbein M. F. K. Fisher Adam Gopnik Gael Greene Jane Grigson Marcella Hazan Karen Hess Amanda Hesser Kate Heyhoe Alison Holst Judith Jones Diana Kennedy Christopher Kimball Mark Kurlansky Kylie Kwong Nigella Lawson David Leite Paul Levy A. J. Liebling Manju Malhi Ginette Mathiot Harold McGee Zora Mintalová - Zubercová Prosper Montagné Massimo Montanari Joan Nathan Marion Nestle Jamie Oliver Richard Olney Clementine Paddleford Karen A. Page Jean Paré Angelo Pellegrini Elizabeth Robins Pennell Jacques Pépin Michael Pollan Edouard de Pomiane Wolfgang Puck Gordon Ramsay Rachael Ray Ruth Reichl Gary Rhodes Claudia Roden Waverley Root Marcel Rouff Michael Ruhlman Shonali Sabherwal Nigel Slater Delia Smith Raymond Sokolov Jeffrey Steingarten Joanne Stepaniak Martha Stewart John Thorne Raquel Torres Cerdán Mapie de Toulouse-Lautrec Anne Willan Martin Yan Important texts in the genre (not easily attributable to an author) Larousse Gastronomique (1938;
of independence of a separatist region in Moldova in Eastern Europe Four pillars policy of the Australian government to maintain the separation of the four largest banks Four Pillars, a research programme by the Geneva Association Four pillars of communication rights Four Pillars of Dominican Life, principles of the Dominican Order Four pillars of manufacturing engineering, devised by the American SME Four Pillars of Geometry, a 2005 book by John Stillwell Four Pillars of Heaven, the Egyptian
people who spearheaded a campaign to revive the language and literature Four Pillars of Transnistria, basis of the declaration of independence of a separatist region in Moldova in Eastern Europe Four pillars policy of the Australian government to maintain the separation of the four largest banks Four Pillars, a research programme by the Geneva Association Four pillars of communication rights Four Pillars of Dominican Life, principles of the
The ride moved at a rate of approximately per minute or , allowing spectators to look down through a continuous curved pane of glass towards the model. The virtue of this elevated position allowed spectators to see multiple scales simultaneously, viewing city blocks in proportion to a highway system, as well as artificially controlled trees in glass domes. This scale was modeled off 408 topographical sections based on aerial photographs of different regions of the U.S. provided by Fairchild Aircraft Ltd. Reception Before General Motors invited Bel Geddes to submit a proposal for the exhibit, they had planned to put in another production line as was featured at their exhibit in the Century of Progress Exposition of 1933 in Chicago. However, after they heard Bel Geddes outline his project all other plans were scrapped as they favored his design for its appeal to a broader audience. The Futurama exhibition was subsequently presented as one of the 1939 New York World Fair's main attractions, as it was the "number-one hit show". It was considered highly interesting by the public and critics alike, with journalists competing to find adequate words to convey Bel Geddes' "ingenuity", "daring", "showmanship" and "genius". One neutral survey of 1000 departing fairgoers awarded the General Motors exhibit 39.4 points to only 8.5 points for second place Ford as the most interesting exhibit. Business Week described the scene: His ideas of the future had a remarkable degree of realism and immediacy, striking a chord with an American audience slowly recovering from the Great Depression and that was longing for prosperity. Futurama's imaginary landscape of 1960 was, at the time, seen not just as a novel physical space, but as a glimpse of the future. Legacy The General Motors pavilion at the 1964 New York World's Fair included a ride, Futurama II, that was also known as "The New Futurama". The 1964 version had a 110 foot tall front facade which was tilted toward the viewer as they approached the front of the building. Inside, moving theater seats took visitors on a multi-media ride into the future around the world, narrated by a description of all the future scenarios. After the 15 minute ride, visitors exited into a showroom of futuristic models and current General Motors products. The October 1965 attendance statistics beat the old record from 1939 for the two year period by about five million visitors, the
the nation. It provided a direct connection between the streamlined style which was popular in America between 1928 and 1938, and the concept of steady-flow which appeared in street and highway design in the same period. Geddes expounds upon his design in his book Magic Motorways: The modeled highway construction emphasized hope for the future as it served as a proposed solution to traffic congestion of the day, and demonstrated the probable development of traffic in proportion to the automotive growth of the next 20 years. Bel Geddes assumed that the automobile would be the same type of carrier and still the most common means of transportation in 1960, albeit with increased vehicle use and traffic lanes also capable of much higher speeds. Four general ideas for improvement were incorporated into the exhibition showcase to meet these assumptions. First, each section of road was designed to receive greater capacity of traffic. Second, traffic moving in one direction could be isolated from traffic moving in any other. Third, segregating traffic by subdividing towns and cities into certain units restricted traffic and allowed pedestrians to predominate. And fourth, traffic control included maximum and minimum speeds. Through this, the exhibition was designed to inspire greater public enthusiasm and support for the constructive work and planning of streets and highways. The popularity of the Futurama exhibit fit closely with the fair's overall theme of "The World of Tomorrow" in its emphasis on the future and its redesign of the American landscape. The highway system was supported within a animated model of a projected America containing more than 500,000 individually designed buildings, a million trees of 13 different species, and approximately 50,000 cars, 10,000 of which traveled along a 14-lane multi-speed interstate highway. It prophesied an American utopia regulated by an assortment of cutting-edge technologies: multi-lane highways with remote-controlled semi-automated vehicles, power plants, farms for artificially produced crops, rooftop platforms for individual flying machines, and various gadgets, all intended to make an ideal built environment and ultimately to reform society. Geddes' "future" was synonymous with technological progress in its simulated low-flying airplane journey through the exhibit. The aerial journey was simulated by an 18-minute ride on a conveyor system, carrying 552 seated spectators at a time, covering a ⅓-mile winding path through the model, along with light, sound, and color effects. The ride moved at a rate of approximately per minute or , allowing spectators to look down through a continuous curved pane of glass towards the model. The virtue of this elevated position allowed spectators to see multiple scales simultaneously, viewing city blocks in proportion to a highway system, as well as artificially controlled trees in glass domes. This scale was modeled off 408 topographical sections based on aerial photographs of different regions of the U.S. provided by Fairchild Aircraft Ltd. Reception Before General Motors invited Bel Geddes to submit a proposal for the exhibit, they had planned to put in another production line as
the Palazzo ducale, and had the Naviglio d'Adda, a channel connecting with the Adda River, built. During Sforza's reign, Florence was under the command of Cosimo de' Medici and the two rulers became close friends. This friendship eventually manifested in first the Peace of Lodi and then the Italian League, a multi-polar defensive alliance of Italian states that succeeded in stabilising almost all of Italy for its duration. After the peace, Sforza renounced part of the conquests in eastern Lombardy obtained by his condottieri Bartolomeo Colleoni, Ludovico Gonzaga, and Roberto Sanseverino d'Aragona after 1451. As King Alfonso of Naples was among the signatories of the treaty, Sforza also abandoned his long support of the Angevin pretenders to Naples. He also aimed to conquer Genoa, then an Angevin possession; when a revolt broke out there in 1461, he had Spinetta Campofregoso elected as Doge, as his puppet. Sforza occupied Genoa and Savona in 1464. Sforza was the first European ruler to follow a foreign policy based on the concept of the balance of power, and the first native Italian ruler to conduct extensive diplomacy outside the peninsula to counter the power of threatening states such as France. Sforza's policies succeeded in keeping foreign powers from dominating Italian politics for the rest of the century. Sforza suffered from hydropsy and gout. In 1462, rumours spread that he was dead and a riot exploded in Milan. He however survived for four more years, finally dying in March 1466. He was succeeded as duke by his son, Galeazzo Maria Sforza. Francesco's successor Ludovico commissioned Leonardo da Vinci to design an equestrian statue as part of a monument to Francesco I Sforza. A clay model of a horse which was to be used as part of the design was completed by Leonardo in 1492 — but the statue was never built. In 1999 the horse alone was cast from Leonardo's original designs in bronze and placed in Milan outside the racetrack of Ippodromo del Galoppo. Issue Francesco Sforza with his second wife Bianca Maria Visconti had: Galeazzo Maria (24 January 1444 — 26 December 1476), Duke of Milan from 1466 to 1476. Ippolita Maria (18 April 1446 — 20 August 1484), wife of Alfonso II of Naples and mother of Isabella of Aragon, who was to marry Galeazzo's heir. Filippo Maria (12 December 1449 — 1492), Count of Corsica. Sforza Maria (18 August 1451 — 29 July 1479), Duke of Bari from 1464 to 1479. Francesco Galeazzo Maria (5 August 1453/54 — died young). Ludovico Maria (3 August 1452 — 27 May 1508), Duke of Bari from 1479 to 1494 and Duke of Milan from 1494 to 1499. Ascanio Maria (3 March 1455 — 28 May 1505), Abbot of Chiaraville, Bishop of Pavia, Cremona, Pesaro, and Novara and Cardinal. Elisabetta Maria (10 June 1456 — 1473), wife of Guglielmo VIII Paleologo, Margrave of Montferrat. Ottaviano Maria (30 April 1458 — 1477), Count of Lugano, who drowned while escaping arrest. Francesco Sforza also had an unspecified number (possibly 35) of illegitimate children. Giovanna d'Acquapendente, who was Francesco's official lover between the death of his first wife and his marriage to Bianca Maria Visconti, gave him 7 children including: Sforza Secondo
Calabrese noblewoman. From 1419, he fought alongside his father, soon gaining fame for being able to bend metal bars with his bare hands. He later proved himself to be an expert tactician and very skilled field commander. After the death of his father during the War of L'Aquila, he participated in Braccio da Montone's final defeat in that campaign; he fought subsequently for the Neapolitan army and then for Pope Martin V and the Duke of Milan, Filippo Maria Visconti. After some successes, he fell in disgrace and was sent to the castle of Mortara as a prisoner de facto. He regained his status after leading an expedition against Lucca. In 1431, after a period during which he fought again for the Papal States, he led the Milanese army against Venice; the following year the duke's daughter, Bianca Maria, was betrothed to him. Despite these moves, the wary Filippo Maria never ceased to be distrustful of Sforza. The allegiance of mercenary leaders was dependent, of course, on pay; in 1433-1435, Sforza led the Milanese attack on the Papal States, but when he conquered Ancona, in the Marche, he changed sides, obtaining the title of vicar of the city directly from Pope Eugene IV. In 1436-39, he served variously both Florence and Venice. In 1440, his fiefs in the Kingdom of Naples were occupied by King Alfonso I, and, to recover the situation, Sforza reconciled himself with Filippo Visconti. On 25 October 1441, in Cremona, he could finally marry Bianca Maria as part of the agreements that ended the war between Milan and Venice. The following year, he allied with René of Anjou, pretender to the throne of Naples, and marched against southern Italy. After some initial setbacks, he defeated the Neapolitan commander Niccolò Piccinino, who had invaded his possessions in Romagna and Marche, through the help of Sigismondo Pandolfo Malatesta (who had married his daughter Polissena) and the Venetians, and could return to Milan. Sforza later found himself warring against Francesco Piccinino (whom he defeated at the Battle of Montolmo in 1444) and, later, the alliance of Visconti, Eugene IV, and Malatesta, who had allegedly murdered Polissena. With the help of Venice, Sforza was again victorious and, in exchange for abandoning the Venetians, received the title of capitano generale (commander-in-chief) of the Duchy of Milan's armies. Duke of Milan After Filippo Maria Visconti, duke of Milan, died without a male heir in 1447, fighting broke out to restore the so-called Ambrosian Republic. The name Ambrosian Republic takes its name from St. Ambrose, the patron saint of Milan. Agnese del Maino, his wife's mother, convinced the condottiero who held Pavia to restore it to him. He also received the seigniory of other cities of the duchy, including Lodi, and started to carefully plan the conquest of the ephemeral republic, allying with William VIII of Montferrat and (again) Venice. In 1450, after years of famine, riots raged in the streets of Milan and the city's senate decided to entrust to him the duchy. Sforza entered the city as Duke on 26 February. It was the first time that such a title was handed over by a lay institution. While the other Italian states gradually recognized Sforza as the legitimate Duke of Milan, he was never able to obtain official investiture from the Holy Roman Emperor. That did not come to the Sforza
such as contra dance, Scottish highland dance, Scottish country dance, and modern western square dance, are called folk dances, though this is not true in the strictest sense. Country dance overlaps with contemporary folk dance and ballroom dance. Most country dances and ballroom dances originated from folk dances, with gradual refinement over the years. People familiar with folk dancing can often determine what country a dance is from even if they have not seen that particular dance before. Some countries' dances have features that are unique to that country, although neighboring countries sometimes have similar features. For example, the German and Austrian schuhplattling dance consists of slapping the body and shoes in a fixed pattern, a feature that few other countries' dances have. Folk dances sometimes evolved long before current political boundaries, so that certain dances are shared by several countries. For example, some Serbian, Bulgarian, and Croatian dances share the same or similar dances, and sometimes even use the same name and music for those dances. International folk dance groups exist in cities and college campuses in many countries, in which dancers learn folk dances from many cultures for recreation. Balfolk events are social dance events with live music in Western and Central Europe, originating in the folk revival of the 1970s and becoming more popular since about 2000, where popular European partner dances from the end of the 19th century such as the schottische, polka, mazurka and waltz are danced, with additionally other European folk dances, mainly from France, but also from Sweden, Spain and other countries. Middle East, Central Asia and South Asia Ardah Armenian dance Assyrian folk dance Azerbaijani dances Bihu, an Assamese dance celebrating the arrival of spring, traditionally the beginning of the Assamese New Year Attan - The national dance of Afghanistan. Also a popular folk dance of Pashtuns tribes of Pakistan including the unique styles of Quetta and Waziristan in Pakistan. Bhangra, a Punjabi harvest dance in Pakistan and India and music style that has become popular worldwide. Chitrali Dance - Chitral, Khyber-Pakhtunkhwa in Pakistan. Circle dance Dabke, a folk
rapper dancing. Some choreographed dances such as contra dance, Scottish highland dance, Scottish country dance, and modern western square dance, are called folk dances, though this is not true in the strictest sense. Country dance overlaps with contemporary folk dance and ballroom dance. Most country dances and ballroom dances originated from folk dances, with gradual refinement over the years. People familiar with folk dancing can often determine what country a dance is from even if they have not seen that particular dance before. Some countries' dances have features that are unique to that country, although neighboring countries sometimes have similar features. For example, the German and Austrian schuhplattling dance consists of slapping the body and shoes in a fixed pattern, a feature that few other countries' dances have. Folk dances sometimes evolved long before current political boundaries, so that certain dances are shared by several countries. For example, some Serbian, Bulgarian, and Croatian dances share the same or similar dances, and sometimes even use the same name and music for those dances. International folk dance groups exist in cities and college campuses in many countries, in which dancers learn folk dances from many cultures for recreation. Balfolk events are social dance events with live music in Western and Central Europe, originating in the folk revival of the 1970s and becoming more popular since about 2000, where popular European partner dances from the end of the 19th century such as the schottische, polka, mazurka and waltz are danced, with additionally other European folk dances, mainly from France, but also from Sweden, Spain and other countries. Middle East, Central Asia and South Asia Ardah Armenian dance Assyrian folk dance Azerbaijani dances Bihu, an Assamese dance celebrating the arrival of spring, traditionally the beginning of the Assamese New Year Attan - The national dance of Afghanistan. Also a popular folk dance of Pashtuns tribes of Pakistan including the unique styles of Quetta and Waziristan in Pakistan. Bhangra, a Punjabi harvest dance in Pakistan and India and music style that has become popular worldwide. Chitrali Dance - Chitral, Khyber-Pakhtunkhwa in Pakistan.
cancel their large debts by selling their rental house in Peski, but difficulties with the tenant resulted in a relatively low selling price, and disputes with their creditors continued. Anna proposed that they raise money on her husband's copyrights and negotiate with the creditors to pay off their debts in installments. Dostoevsky revived his friendships with Maykov and Strakhov and made new acquaintances, including church politician Terty Filipov and the brothers Vsevolod and Vladimir Solovyov. Konstantin Pobedonostsev, future Imperial High Commissioner of the Most Holy Synod, influenced Dostoevsky's political progression to conservatism. Around early 1872 the family spent several months in Staraya Russa, a town known for its mineral spa. Dostoevsky's work was delayed when Anna's sister Maria Svatkovskaya died on 1 May 1872, from either typhus or malaria, and Anna developed an abscess on her throat. The family returned to St Petersburg in September. Demons was finished on 26 November and released in January 1873 by the "Dostoevsky Publishing Company", which was founded by Dostoevsky and his wife. Although they accepted only cash payments and the bookshop was in their own apartment, the business was successful, and they sold around 3,000 copies of Demons. Anna managed the finances. Dostoevsky proposed that they establish a new periodical, which would be called A Writer's Diary and would include a collection of essays, but funds were lacking, and the Diary was published in Vladimir Meshchersky's The Citizen, beginning on 1 January, in return for a salary of 3,000 rubles per year. In the summer of 1873, Anna returned to Staraya Russa with the children, while Dostoevsky stayed in St Petersburg to continue with his Diary. In March 1874, Dostoevsky left The Citizen because of the stressful work and interference from the Russian bureaucracy. In his fifteen months with The Citizen, he had been taken to court twice: on 11 June 1873 for citing the words of Prince Meshchersky without permission, and again on 23 March 1874. Dostoevsky offered to sell a new novel he had not yet begun to write to The Russian Messenger, but the magazine refused. Nikolay Nekrasov suggested that he publish A Writer's Diary in Notes of the Fatherland; he would receive 250 rubles for each printer's sheet – 100 more than the text's publication in The Russian Messenger would have earned. Dostoevsky accepted. As his health began to decline, he consulted several doctors in St Petersburg and was advised to take a cure outside Russia. Around July, he reached Ems and consulted a physician, who diagnosed him with acute catarrh. During his stay he began The Adolescent. He returned to Saint Petersburg in late July. Anna proposed that they spend the winter in Staraya Russa to allow Dostoevsky to rest, although doctors had suggested a second visit to Ems because his health had previously improved there. On 10 August 1875 his son Alexey was born in Staraya Russa, and in mid-September the family returned to Saint Petersburg. Dostoevsky finished The Adolescent at the end of 1875, although passages of it had been serialised in Notes of the Fatherland since January. The Adolescent chronicles the life of Arkady Dolgoruky, the illegitimate child of the landowner Versilov and a peasant mother. It deals primarily with the relationship between father and son, which became a frequent theme in Dostoevsky's subsequent works. Last years (1876–1881) In early 1876, Dostoevsky continued work on his Diary. The book includes numerous essays and a few short stories about society, religion, politics and ethics. The collection sold more than twice as many copies as his previous books. Dostoevsky received more letters from readers than ever before, and people of all ages and occupations visited him. With assistance from Anna's brother, the family bought a dacha in Staraya Russa. In the summer of 1876, Dostoevsky began experiencing shortness of breath again. He visited Ems for the third time and was told that he might live for another 15 years if he moved to a healthier climate. When he returned to Russia, Tsar Alexander II ordered Dostoevsky to visit his palace to present the Diary to him, and he asked him to educate his sons, Sergey and Paul. This visit further increased Dosteyevsky's circle of acquaintances. He was a frequent guest in several salons in Saint Petersburg and met many famous people, including Countess Sophia Tolstaya, Yakov Polonsky, Sergei Witte, Alexey Suvorin, Anton Rubinstein and Ilya Repin. Dostoevsky's health declined further, and in March 1877 he had four epileptic seizures. Rather than returning to Ems, he visited Maly Prikol, a manor near Kursk. While returning to St Petersburg to finalise his Diary, he visited Darovoye, where he had spent much of his childhood. In December he attended Nekrasov's funeral and gave a speech. He was appointed an honorary member of the Russian Academy of Sciences, from which he received an honorary certificate in February 1879. He declined an invitation to an international congress on copyright in Paris after his son Alyosha had a severe epileptic seizure and died on 16 May. The family later moved to the apartment where Dostoevsky had written his first works. Around this time, he was elected to the board of directors of the Slavic Benevolent Society in Saint Petersburg. That summer, he was elected to the honorary committee of the Association Littéraire et Artistique Internationale, whose members included Victor Hugo, Ivan Turgenev, Paul Heyse, Alfred Tennyson, Anthony Trollope, Henry Longfellow, Ralph Waldo Emerson and Leo Tolstoy. Dostoevsky made his fourth and final visit to Ems in early August 1879. He was diagnosed with early-stage pulmonary emphysema, which his doctor believed could be successfully managed, but not cured. On 3 February 1880 Dostoevsky was elected vice-president of the Slavic Benevolent Society, and he was invited to speak at the unveiling of the Pushkin memorial in Moscow. On 8 June he delivered his speech, giving an impressive performance that had a significant emotional impact on his audience. His speech was met with thunderous applause, and even his long-time rival Turgenev embraced him. Konstantin Staniukovich praised the speech in his essay "The Pushkin Anniversary and Dostoevsky's Speech" in The Business, writing that "the language of Dostoevsky's [Pushkin Speech] really looks like a sermon. He speaks with the tone of a prophet. He makes a sermon like a pastor; it is very deep, sincere, and we understand that he wants to impress the emotions of his listeners." The speech was criticised later by liberal political scientist Alexander Gradovsky, who thought that Dostoevsky idolised "the people", and by conservative thinker Konstantin Leontiev, who, in his essay "On Universal Love", compared the speech to French utopian socialism. The attacks led to a further deterioration in his health. Death On , while searching for members of the terrorist organisation Narodnaya Volya ("The People's Will") who would soon assassinate Tsar Alexander II, the Tsar's secret police executed a search warrant in the apartment of one of Dostoevsky's neighbours. On the following day, Dostoevsky suffered a pulmonary haemorrhage. Anna denied that the search had caused it, saying that the haemorrhage had occurred after her husband had been looking for a dropped pen holder. After another haemorrhage, Anna called the doctors, who gave a poor prognosis. A third haemorrhage followed shortly afterwards. While seeing his children before dying, Dostoevsky requested that the parable of the Prodigal Son be read to his children. The profound meaning of this request is pointed out by Frank: Among Dostoevsky's last words was his quotation of : "But John forbad him, saying, I have a need to be baptised of thee, and comest thou to me? And Jesus answering said unto him, Suffer it to be so now: for thus it becometh us to fulfil all righteousness", and he finished with "Hear now—permit it. Do not restrain me!". His last words to his wife Anna were: "Remember, Anya, I have always loved you passionately and have never been unfaithful to you ever, even in my thoughts!" When he died, his body was placed on a table, following Russian custom. He was interred in the Tikhvin Cemetery at the Alexander Nevsky Convent, near his favourite poets, Nikolay Karamzin and Vasily Zhukovsky. It is unclear how many attended his funeral. According to one reporter, more than 100,000 mourners were present, while others describe attendance between 40,000 and 50,000. His tombstone is inscribed with lines from the New Testament: Personal life Extramarital affairs Dostoevsky had his first known affair with Avdotya Yakovlevna, whom he met in the Panayev circle in the early 1840s. He described her as educated, interested in literature, and a femme fatale. He admitted later that he was uncertain about their relationship. According to Anna Dostoevskaya's memoirs, Dostoevsky once asked his sister's sister-in-law, Yelena Ivanova, whether she would marry him, hoping to replace her mortally ill husband after he died, but she rejected his proposal. Dostoevsky and Apollonia (Polina) Suslova had a short but intimate affair, which peaked in the winter of 1862–1863. Suslova's dalliance with a Spaniard in late spring and Dostoevsky's gambling addiction and age ended their relationship. He later described her in a letter to Nadezhda Suslova as a "great egoist. Her egoism and her vanity are colossal. She demands everything of other people, all the perfections, and does not pardon the slightest imperfection in the light of other qualities that one may possess", and later stated "I still love her, but I do not want to love her any more. She doesn't deserve this love ..." In 1858 Dostoevsky had a romance with comic actress Aleksandra Ivanovna Schubert. Although she divorced Dostoevsky's friend Stepan Yanovsky, she would not live with him. Dostoevsky did not love her either, but they were probably good friends. She wrote that he "became very attracted to me". Through a worker in Epoch, Dostoevsky learned of the Russian-born Martha Brown (née Elizaveta Andreyevna Chlebnikova), who had had affairs with several westerners. Her relationship with Dostoevsky is known only through letters written between November 1864 and January 1865. In 1865, Dostoevsky met Anna Korvin-Krukovskaya. Their relationship is not verified; Anna Dostoevskaya spoke of a good affair, but Korvin-Krukovskaya's sister, the mathematician Sofia Kovalevskaya, thought that Korvin-Krukovskaya had rejected him. Political beliefs In his youth, Dostoevsky enjoyed reading Nikolai Karamzin's History of the Russian State, which praised conservatism and Russian independence, ideas that Dostoevsky would embrace later in life. Before his arrest for participating in the Petrashevsky Circle in 1849, Dostoevsky remarked, "As far as I am concerned, nothing was ever more ridiculous than the idea of a republican government in Russia." In an 1881 edition of his Diaries, Dostoevsky stated that the Tsar and the people should form a unity: "For the people, the tsar is not an external power, not the power of some conqueror ... but a power of all the people, an all-unifying power the people themselves desired." While critical of serfdom, Dostoevsky was skeptical about the creation of a constitution, a concept he viewed as unrelated to Russia's history. He described it as a mere "gentleman's rule" and believed that "a constitution would simply enslave the people". He advocated social change instead, for example removal of the feudal system and a weakening of the divisions between the peasantry and the affluent classes. His ideal was a utopian, Christianized Russia where "if everyone were actively Christian, not a single social question would come up ... If they were Christians they would settle everything". He thought democracy and oligarchy were poor systems; of France he wrote, "the oligarchs are only concerned with the interest of the wealthy; the democrats, only with the interest of the poor; but the interests of society, the interest of all and the future of France as a whole—no one there bothers about these things." He maintained that political parties ultimately led to social discord. In the 1860s, he discovered Pochvennichestvo, a movement similar to Slavophilism in that it rejected Europe's culture and contemporary philosophical movements, such as nihilism and materialism. Pochvennichestvo differed from Slavophilism in aiming to establish, not an isolated Russia, but a more open state modelled on the Russia of Peter the Great. In his incomplete article "Socialism and Christianity", Dostoevsky claimed that civilisation ("the second stage in human history") had become degraded, and that it was moving towards liberalism and losing its faith in God. He asserted that the traditional concept of Christianity should be recovered. He thought that contemporary western Europe had "rejected the single formula for their salvation that came from God and was proclaimed through revelation, 'Thou shalt love thy neighbour as thyself', and replaced it with practical conclusions such as, Chacun pour soi et Dieu pour tous [Every man for himself and God for all], or "scientific" slogans like 'the struggle for survival. He considered this crisis to be the consequence of the collision between communal and individual interests, brought about by a decline in religious and moral principles. Dostoevsky distinguished three "enormous world ideas" prevalent in his time: Roman Catholicism, Protestantism and (Russian) Orthodoxy. He claimed that Catholicism had continued the tradition of Imperial Rome and had thus become anti-Christian and proto-socialist, inasmuch as the Church's interest in political and mundane affairs led it to abandon the idea of Christ. For Dostoevsky, socialism was "the latest incarnation of the Catholic idea" and its "natural ally". He found Protestantism self-contradictory and claimed that it would ultimately lose power and spirituality. He deemed (Russian) Orthodoxy to be the ideal form of Christianity. For all that, to place Dostoevsky politically is not that simple, but: as a Christian, he rejected atheistic socialism; as a traditionalist, he rejected the destruction of the institutions; and, as a pacifist, he rejected any violent method or upheaval led by either progressives or reactionaries. He supported private property and business rights, and did not agree with many criticisms of the free market from the socialist utopians of his time. During the Russo-Turkish War, Dostoevsky asserted that war might be necessary if salvation were to be granted. He wanted the Muslim Ottoman Empire eliminated and the Christian Byzantine Empire restored, and he hoped for the liberation of Balkan Slavs and their unification with the Russian Empire. Ethnic beliefs Many characters in Dostoevsky's works, including Jews, have been described as displaying negative stereotypes. In a letter to Arkady Kovner from 1877, a Jew who had accused Dostoevsky of antisemitism, he replied with the following:"I am not an enemy of the Jews at all and never have been. But as you say, its 40-century existence proves that this tribe has exceptional vitality, which would not help, during the course of its history, taking the form of various Status in Statu .... how can they fail to find themselves, even if only partially, at variance with the indigenous population – the Russian tribe?" Dostoevsky held to a Pan Slavic ideology that was conditioned by the Ottoman occupations of Eastern Europe. In 1876, the Slavic populations of Serbia and Bulgaria rose up against their Ottoman overlords, but the rebellion was put down. In the process, an estimated 12,000 people were killed. In his diaries, he scorned Westerners and those who were against the Pan Slavic movement. This ideology was motivated in part by the desire to promote a common Orthodox Christian heritage, which he saw as both unifying as well as a force for liberation. Religious beliefs Dostoevsky was an Orthodox Christian who was raised in a religious family and knew the Gospel from a very young age. He was influenced by the Russian translation of Johannes Hübner's One Hundred and Four Sacred Stories from the Old and New Testaments Selected for Children (partly a German bible for children and partly a catechism). He attended Sunday liturgies from an early age and took part in annual pilgrimages to the St. Sergius Trinity Monastery. A deacon at the hospital gave him religious instruction. Among his most cherished childhood memories were reciting prayers in front of guests and reading passages from the Book of Job that impressed him while "still almost a child." According to an officer at the military academy, Dostoevsky was profoundly religious, followed Orthodox practice, and regularly read the Gospels and Heinrich Zschokke's Die Stunden der Andacht ("Hours of Devotion"), which "preached a sentimental version of Christianity entirely free from dogmatic content and with a strong emphasis on giving Christian love a social application." This book may have prompted his later interest in Christian socialism. Through the literature of Hoffmann, Balzac, Eugène Sue, and Goethe, Dostoevsky created his own belief system, similar to Russian sectarianism and the Old Belief. After his arrest, aborted execution, and subsequent imprisonment, he focused intensely on the figure of Christ and on the New Testament: the only book allowed in prison. In a January 1854 letter to the woman who had sent him the New Testament, Dostoevsky wrote that he was a "child of unbelief and doubt up to this moment, and I am certain that I shall remain so to the grave." He also wrote that "even if someone were to prove to me that the truth lay outside Christ, I should choose to remain with Christ rather than with the truth." In Semipalatinsk, Dostoevsky revived his faith by looking frequently at the stars. Wrangel said that he was "rather pious, but did not often go to church, and disliked priests, especially the Siberian ones. But he spoke about Christ ecstatically." Two pilgrimages and two works by Dmitri Rostovsky, an archbishop who influenced Ukrainian and Russian literature by composing groundbreaking religious plays, strengthened his beliefs. Through his visits to western Europe and discussions with Herzen, Grigoriev, and Strakhov, Dostoevsky discovered the Pochvennichestvo movement and the theory that the Catholic Church had adopted the principles of rationalism, legalism, materialism, and individualism from ancient Rome and had passed on its philosophy to Protestantism and consequently to atheistic socialism. Themes and style Dostoevsky's canon includes novels, novellas, novelettes, short stories, essays, pamphlets, limericks, epigrams and poems. He wrote more than 700 letters, a dozen of which are lost. Dostoevsky expressed religious, psychological, and philosophical ideas in his writings. His works explore such themes as suicide, poverty, human manipulation, and morality. Psychological themes include dreaming, first seen in "White Nights", and the father-son relationship, beginning in The Adolescent. Most of his works demonstrate a vision of the chaotic sociopolitical structure of contemporary Russia. His early works viewed society (for example, the differences between poor and rich) through the lens of literary realism and naturalism. The influences of other writers, particularly evident in his early works, led to accusations of plagiarism, but his style gradually became more individual. After his release from prison, Dostoevsky incorporated religious themes, especially those of Russian Orthodoxy, into his writing. Elements of gothic fiction, romanticism, and satire are observable in some of his books. He frequently used autobiographical or semi-autobiographical details. An important stylistic element in Dostoevsky's writing is polyphony, the simultaneous presence of multiple narrative voices and perspectives. Polyphony is a literary concept, analogous with musical polyphony, developed by Mikhail Bakhtin on the basis of his analyses of Dostoevsky's works. Kornelije Kvas wrote that Bakhtin's theory of "the polyphonic novel and Dostoevsky’s dialogicness of narration postulates the non-existence of the 'final' word, which is why the thoughts, emotions and experiences of the world of the narrator and his/her characters are reflected through the words of another, with which they can never fully blend." Legacy Reception and influence Dostoevsky is regarded as one of the greatest and most influential novelists of the Golden Age of Russian literature. Leo Tolstoy admired Dostoevsky's works and considered his novels magnificent (correspondingly, Dostoevsky admired Tolstoy as well). Albert Einstein put him above the mathematician Carl Friedrich Gauss, calling him a "great religious writer" who explores "the mystery of spiritual existence". Sigmund Freud ranked Dostoevsky second only to Shakespeare as a creative writer. Friedrich Nietzsche at one point called Dostoevsky "the only psychologist ... from whom I had something to learn; he ranks among the most beautiful strokes of fortune in my life." Hermann Hesse enjoyed Dostoevsky's work and cautioned that to read him is like a "glimpse into the havoc". The Norwegian novelist Knut Hamsun wrote that "no one has analyzed the complicated human structure as Dostoyevsky. His psychologic sense is overwhelming and visionary." The Russian literary theorist Mikhail Bakhtin's analysis of Dostoevsky came to be at the foundation of his theory of the novel. Bakhtin argued that Dostoevsky's use of multiple voices was a major advancement in the development of the novel as a genre. In his posthumous collection of sketches A Moveable Feast, Ernest Hemingway stated that in Dostoevsky "there were things believable and not to be believed, but some so true that they changed you as you read them; frailty and madness, wickedness and saintliness, and the insanity of gambling were there to know". James Joyce praised Dostoevsky's prose: "... he is the man more than any other who has created modern prose, and intensified it to its present-day pitch. It was his explosive power which shattered the Victorian novel with its simpering maidens and ordered commonplaces; books which were without imagination or violence." In her essay The Russian Point of View, Virginia Woolf said, "Out of Shakespeare there is no more exciting reading". Franz Kafka called Dostoevsky his "blood-relative" and was heavily influenced by his works, particularly The Brothers Karamazov and Crime and Punishment, both of which profoundly influenced The Trial. Sigmund Freud called The Brothers Karamazov "the most magnificent novel ever written". Modern cultural movements such as the surrealists, the existentialists and the Beats cite Dostoevsky as an influence, and he is cited as the forerunner of Russian symbolism, existentialism, expressionism and psychoanalysis. In her essay What Is Romanticism?, Russian-American author Ayn Rand wrote that Dostoevsky was one of the two greatest novelists (the other being Victor Hugo). Argentinian writer Julio Cortázar also mentions Dostoevsky in his novel Hopscotch. Honours In 1956 an olive-green postage stamp dedicated to Dostoevsky was released in the Soviet Union, with a print run of 1,000 copies. A Dostoevsky Museum was opened on 12 November 1971 in the apartment where he wrote his first and final novels. A crater on Mercury was named after him in 1979, and a minor planet discovered in 1981 by Lyudmila Karachkina was named 3453 Dostoevsky. Music critic and broadcaster Artemy Troitsky has hosted the radio show "FM Достоевский" (FM Dostoevsky) since 1997. J.M. Coetzee featured Dostoevsky as the protagonist in his 1997 novel The Master of Petersburg. The famous Malayalam novel Oru Sankeerthanam Pole by Perumbadavam Sreedharan deals with the life of Dostoevsky and his love affair with Anna. Viewers of the TV show Name of Russia voted him the ninth greatest Russian of all time, behind ahead of ruler Ivan IV, and right behind Dmitry Mendeleev. An Eagle Award-winning TV series directed by Vladimir Khotinenko about Dostoevsky's life was screened in 2011. Numerous memorials were inaugurated in cities and regions such as Moscow, Saint Petersburg, Novosibirsk, Omsk, Semipalatinsk, Kusnetsk, Darovoye, Staraya Russa, Lyublino, Tallinn, Dresden, Baden-Baden and Wiesbaden. The Dostoyevskaya metro station in Saint Petersburg was opened on 30 December 1991, and the station of the same name in Moscow was opened on 19 June 2010, the 75th anniversary of the Moscow Metro. The Moscow station is decorated with murals by artist Ivan Nikolaev depicting scenes from Dostoevsky's works, such as controversial suicides. In 2021, Kazakhstan celebrated the 200th anniversary of Dostoyevsky's birth. Criticism Dostoevsky's work did not always gain a positive reception. Some critics, such as Nikolay Dobrolyubov, Ivan Bunin and Vladimir Nabokov, viewed his writing as excessively psychological and philosophical rather than artistic. Others found fault with chaotic and disorganised plots, and others, like Turgenev, objected to "excessive psychologising" and too-detailed naturalism. His style was deemed "prolix, repetitious and lacking in polish, balance, restraint and good taste". Saltykov-Shchedrin, Nikolay Mikhaylovsky and others criticised his puppet-like characters, most prominently in The Idiot, Demons (The Possessed, The Devils) and The Brothers Karamazov. These characters were compared to those of Hoffmann, an author whom Dostoevsky admired. Basing his estimation on stated criteria of enduring art and individual genius, Nabokov judges Dostoevsky "not a great writer, but rather a mediocre one—with flashes of excellent humour but, alas, with wastelands of literary platitudes in between". Nabokov complains that the novels are peopled by "neurotics and lunatics" and states that Dostoevsky's characters do not develop: "We get them all complete at the beginning of the tale and so they remain." He finds the novels full of contrived "surprises and complications of plot", which are effective when first read, but on second reading, without the shock and benefit of these surprises, appear loaded with "glorified cliché". The Scottish poet and critic Edwin Muir, however, addressed this criticism, noting that "regarding the 'oddness' of Dostoevsky's characters, it has been pointed out that they perhaps only seem 'pathological', whereas in reality they are 'only visualized more clearly than any figures in imaginative literature'. Reputation Dostoevsky's books have been translated into more than 170 languages. The German translator Wilhelm Wolfsohn published one of the first translations, parts of Poor Folk, in an 1846–1847 magazine, and a French translation followed. French, German and Italian translations usually came directly from the original, while English translations were second-hand and of poor quality. The first English translations were by Marie von Thilo in 1881, but the first highly regarded ones were produced between 1912 and 1920 by Constance Garnett. Her flowing and easy translations helped popularise Dostoevsky's novels in anglophone countries, and Bakthin's Problems of Dostoevsky's Creative Art (1929) (republished and revised as Problems of Dostoevsky's Poetics in 1963) provided further understanding of his style. Dostoevsky's works were interpreted in film and on stage in many different countries. Princess Varvara Dmitrevna Obolenskaya was among the first to propose staging Crime and Punishment. Dostoevsky did not refuse permission, but he advised against it, as he believed that "each art corresponds to a series of poetic thoughts, so that one idea cannot be expressed in another non-corresponding form". His extensive explanations in opposition to the transposition of his works into other media were groundbreaking in fidelity criticism. He thought that just one episode should be dramatised, or an idea should be taken and incorporated into a separate plot. According to critic Alexander Burry, some of the most effective adaptions are Sergei Prokofiev's opera The Gambler, Leoš Janáček's opera From the House of the Dead, Akira Kurosawa's film The Idiot and Andrzej Wajda's film The Possessed. After the 1917 Russian Revolution, passages of Dostoevsky books were sometimes shortened, although only two books were censored: Demons and Diary of a Writer. His philosophy, particularly in Demons, was deemed anti-capitalist but also anti-Communist and reactionary. According to historian Boris Ilizarov, Stalin read Dostoevsky's The Brothers Karamazov several times. Works Dostoevsky's works of fiction include 15 novels and novellas, 17 short stories, and 5 translations. Many of his longer novels were first published in serialised form in literary magazines and journals. The years given below indicate the year in which the novel's final part or first complete book edition was published. In English many of his novels and stories are known by different titles. Major works Poor Folk Poor Folk is an epistolary novel that describes the relationship between the small, elderly official Makar Devushkin and the young seamstress Varvara Dobroselova, remote relatives who write letters to each other. Makar's tender, sentimental adoration for Varvara and her confident, warm friendship for him explain their evident preference for a simple life, although it keeps them in humiliating poverty. An unscrupulous merchant finds the inexperienced girl and hires her as his housewife and guarantor. He sends her to a manor somewhere on a steppe, while Makar alleviates his misery and pain with alcohol. The story focuses on poor people who struggle with their lack of self-esteem. Their misery leads to the loss of their inner freedom, to dependence on the social authorities, and to the extinction of their individuality. Dostoevsky shows how poverty and dependence are indissolubly aligned with deflection and deformation of self-esteem, combining inward and outerward suffering. Notes from Underground Notes from Underground is split into two stylistically different parts, the first essay-like, the second in narrative style. The protagonist and first-person narrator is an unnamed 40-year-old civil servant known as The Underground Man. The only known facts about his situation are that he has quit the service, lives in a basement flat on the outskirts of Saint Petersburg and finances his livelihood from a modest inheritance. The first part is a record of his thoughts about society and his character. He describes himself as vicious, squalid and ugly; the chief focuses of his polemic are the "modern human" and his vision of the world, which he attacks severely and cynically, and towards which he develops aggression and vengefulness. He considers his own decline natural and necessary. Although he emphasises that he does not intend to publish his notes for the public, the narrator appeals repeatedly to an ill-described audience, whose
has exceptional vitality, which would not help, during the course of its history, taking the form of various Status in Statu .... how can they fail to find themselves, even if only partially, at variance with the indigenous population – the Russian tribe?" Dostoevsky held to a Pan Slavic ideology that was conditioned by the Ottoman occupations of Eastern Europe. In 1876, the Slavic populations of Serbia and Bulgaria rose up against their Ottoman overlords, but the rebellion was put down. In the process, an estimated 12,000 people were killed. In his diaries, he scorned Westerners and those who were against the Pan Slavic movement. This ideology was motivated in part by the desire to promote a common Orthodox Christian heritage, which he saw as both unifying as well as a force for liberation. Religious beliefs Dostoevsky was an Orthodox Christian who was raised in a religious family and knew the Gospel from a very young age. He was influenced by the Russian translation of Johannes Hübner's One Hundred and Four Sacred Stories from the Old and New Testaments Selected for Children (partly a German bible for children and partly a catechism). He attended Sunday liturgies from an early age and took part in annual pilgrimages to the St. Sergius Trinity Monastery. A deacon at the hospital gave him religious instruction. Among his most cherished childhood memories were reciting prayers in front of guests and reading passages from the Book of Job that impressed him while "still almost a child." According to an officer at the military academy, Dostoevsky was profoundly religious, followed Orthodox practice, and regularly read the Gospels and Heinrich Zschokke's Die Stunden der Andacht ("Hours of Devotion"), which "preached a sentimental version of Christianity entirely free from dogmatic content and with a strong emphasis on giving Christian love a social application." This book may have prompted his later interest in Christian socialism. Through the literature of Hoffmann, Balzac, Eugène Sue, and Goethe, Dostoevsky created his own belief system, similar to Russian sectarianism and the Old Belief. After his arrest, aborted execution, and subsequent imprisonment, he focused intensely on the figure of Christ and on the New Testament: the only book allowed in prison. In a January 1854 letter to the woman who had sent him the New Testament, Dostoevsky wrote that he was a "child of unbelief and doubt up to this moment, and I am certain that I shall remain so to the grave." He also wrote that "even if someone were to prove to me that the truth lay outside Christ, I should choose to remain with Christ rather than with the truth." In Semipalatinsk, Dostoevsky revived his faith by looking frequently at the stars. Wrangel said that he was "rather pious, but did not often go to church, and disliked priests, especially the Siberian ones. But he spoke about Christ ecstatically." Two pilgrimages and two works by Dmitri Rostovsky, an archbishop who influenced Ukrainian and Russian literature by composing groundbreaking religious plays, strengthened his beliefs. Through his visits to western Europe and discussions with Herzen, Grigoriev, and Strakhov, Dostoevsky discovered the Pochvennichestvo movement and the theory that the Catholic Church had adopted the principles of rationalism, legalism, materialism, and individualism from ancient Rome and had passed on its philosophy to Protestantism and consequently to atheistic socialism. Themes and style Dostoevsky's canon includes novels, novellas, novelettes, short stories, essays, pamphlets, limericks, epigrams and poems. He wrote more than 700 letters, a dozen of which are lost. Dostoevsky expressed religious, psychological, and philosophical ideas in his writings. His works explore such themes as suicide, poverty, human manipulation, and morality. Psychological themes include dreaming, first seen in "White Nights", and the father-son relationship, beginning in The Adolescent. Most of his works demonstrate a vision of the chaotic sociopolitical structure of contemporary Russia. His early works viewed society (for example, the differences between poor and rich) through the lens of literary realism and naturalism. The influences of other writers, particularly evident in his early works, led to accusations of plagiarism, but his style gradually became more individual. After his release from prison, Dostoevsky incorporated religious themes, especially those of Russian Orthodoxy, into his writing. Elements of gothic fiction, romanticism, and satire are observable in some of his books. He frequently used autobiographical or semi-autobiographical details. An important stylistic element in Dostoevsky's writing is polyphony, the simultaneous presence of multiple narrative voices and perspectives. Polyphony is a literary concept, analogous with musical polyphony, developed by Mikhail Bakhtin on the basis of his analyses of Dostoevsky's works. Kornelije Kvas wrote that Bakhtin's theory of "the polyphonic novel and Dostoevsky’s dialogicness of narration postulates the non-existence of the 'final' word, which is why the thoughts, emotions and experiences of the world of the narrator and his/her characters are reflected through the words of another, with which they can never fully blend." Legacy Reception and influence Dostoevsky is regarded as one of the greatest and most influential novelists of the Golden Age of Russian literature. Leo Tolstoy admired Dostoevsky's works and considered his novels magnificent (correspondingly, Dostoevsky admired Tolstoy as well). Albert Einstein put him above the mathematician Carl Friedrich Gauss, calling him a "great religious writer" who explores "the mystery of spiritual existence". Sigmund Freud ranked Dostoevsky second only to Shakespeare as a creative writer. Friedrich Nietzsche at one point called Dostoevsky "the only psychologist ... from whom I had something to learn; he ranks among the most beautiful strokes of fortune in my life." Hermann Hesse enjoyed Dostoevsky's work and cautioned that to read him is like a "glimpse into the havoc". The Norwegian novelist Knut Hamsun wrote that "no one has analyzed the complicated human structure as Dostoyevsky. His psychologic sense is overwhelming and visionary." The Russian literary theorist Mikhail Bakhtin's analysis of Dostoevsky came to be at the foundation of his theory of the novel. Bakhtin argued that Dostoevsky's use of multiple voices was a major advancement in the development of the novel as a genre. In his posthumous collection of sketches A Moveable Feast, Ernest Hemingway stated that in Dostoevsky "there were things believable and not to be believed, but some so true that they changed you as you read them; frailty and madness, wickedness and saintliness, and the insanity of gambling were there to know". James Joyce praised Dostoevsky's prose: "... he is the man more than any other who has created modern prose, and intensified it to its present-day pitch. It was his explosive power which shattered the Victorian novel with its simpering maidens and ordered commonplaces; books which were without imagination or violence." In her essay The Russian Point of View, Virginia Woolf said, "Out of Shakespeare there is no more exciting reading". Franz Kafka called Dostoevsky his "blood-relative" and was heavily influenced by his works, particularly The Brothers Karamazov and Crime and Punishment, both of which profoundly influenced The Trial. Sigmund Freud called The Brothers Karamazov "the most magnificent novel ever written". Modern cultural movements such as the surrealists, the existentialists and the Beats cite Dostoevsky as an influence, and he is cited as the forerunner of Russian symbolism, existentialism, expressionism and psychoanalysis. In her essay What Is Romanticism?, Russian-American author Ayn Rand wrote that Dostoevsky was one of the two greatest novelists (the other being Victor Hugo). Argentinian writer Julio Cortázar also mentions Dostoevsky in his novel Hopscotch. Honours In 1956 an olive-green postage stamp dedicated to Dostoevsky was released in the Soviet Union, with a print run of 1,000 copies. A Dostoevsky Museum was opened on 12 November 1971 in the apartment where he wrote his first and final novels. A crater on Mercury was named after him in 1979, and a minor planet discovered in 1981 by Lyudmila Karachkina was named 3453 Dostoevsky. Music critic and broadcaster Artemy Troitsky has hosted the radio show "FM Достоевский" (FM Dostoevsky) since 1997. J.M. Coetzee featured Dostoevsky as the protagonist in his 1997 novel The Master of Petersburg. The famous Malayalam novel Oru Sankeerthanam Pole by Perumbadavam Sreedharan deals with the life of Dostoevsky and his love affair with Anna. Viewers of the TV show Name of Russia voted him the ninth greatest Russian of all time, behind ahead of ruler Ivan IV, and right behind Dmitry Mendeleev. An Eagle Award-winning TV series directed by Vladimir Khotinenko about Dostoevsky's life was screened in 2011. Numerous memorials were inaugurated in cities and regions such as Moscow, Saint Petersburg, Novosibirsk, Omsk, Semipalatinsk, Kusnetsk, Darovoye, Staraya Russa, Lyublino, Tallinn, Dresden, Baden-Baden and Wiesbaden. The Dostoyevskaya metro station in Saint Petersburg was opened on 30 December 1991, and the station of the same name in Moscow was opened on 19 June 2010, the 75th anniversary of the Moscow Metro. The Moscow station is decorated with murals by artist Ivan Nikolaev depicting scenes from Dostoevsky's works, such as controversial suicides. In 2021, Kazakhstan celebrated the 200th anniversary of Dostoyevsky's birth. Criticism Dostoevsky's work did not always gain a positive reception. Some critics, such as Nikolay Dobrolyubov, Ivan Bunin and Vladimir Nabokov, viewed his writing as excessively psychological and philosophical rather than artistic. Others found fault with chaotic and disorganised plots, and others, like Turgenev, objected to "excessive psychologising" and too-detailed naturalism. His style was deemed "prolix, repetitious and lacking in polish, balance, restraint and good taste". Saltykov-Shchedrin, Nikolay Mikhaylovsky and others criticised his puppet-like characters, most prominently in The Idiot, Demons (The Possessed, The Devils) and The Brothers Karamazov. These characters were compared to those of Hoffmann, an author whom Dostoevsky admired. Basing his estimation on stated criteria of enduring art and individual genius, Nabokov judges Dostoevsky "not a great writer, but rather a mediocre one—with flashes of excellent humour but, alas, with wastelands of literary platitudes in between". Nabokov complains that the novels are peopled by "neurotics and lunatics" and states that Dostoevsky's characters do not develop: "We get them all complete at the beginning of the tale and so they remain." He finds the novels full of contrived "surprises and complications of plot", which are effective when first read, but on second reading, without the shock and benefit of these surprises, appear loaded with "glorified cliché". The Scottish poet and critic Edwin Muir, however, addressed this criticism, noting that "regarding the 'oddness' of Dostoevsky's characters, it has been pointed out that they perhaps only seem 'pathological', whereas in reality they are 'only visualized more clearly than any figures in imaginative literature'. Reputation Dostoevsky's books have been translated into more than 170 languages. The German translator Wilhelm Wolfsohn published one of the first translations, parts of Poor Folk, in an 1846–1847 magazine, and a French translation followed. French, German and Italian translations usually came directly from the original, while English translations were second-hand and of poor quality. The first English translations were by Marie von Thilo in 1881, but the first highly regarded ones were produced between 1912 and 1920 by Constance Garnett. Her flowing and easy translations helped popularise Dostoevsky's novels in anglophone countries, and Bakthin's Problems of Dostoevsky's Creative Art (1929) (republished and revised as Problems of Dostoevsky's Poetics in 1963) provided further understanding of his style. Dostoevsky's works were interpreted in film and on stage in many different countries. Princess Varvara Dmitrevna Obolenskaya was among the first to propose staging Crime and Punishment. Dostoevsky did not refuse permission, but he advised against it, as he believed that "each art corresponds to a series of poetic thoughts, so that one idea cannot be expressed in another non-corresponding form". His extensive explanations in opposition to the transposition of his works into other media were groundbreaking in fidelity criticism. He thought that just one episode should be dramatised, or an idea should be taken and incorporated into a separate plot. According to critic Alexander Burry, some of the most effective adaptions are Sergei Prokofiev's opera The Gambler, Leoš Janáček's opera From the House of the Dead, Akira Kurosawa's film The Idiot and Andrzej Wajda's film The Possessed. After the 1917 Russian Revolution, passages of Dostoevsky books were sometimes shortened, although only two books were censored: Demons and Diary of a Writer. His philosophy, particularly in Demons, was deemed anti-capitalist but also anti-Communist and reactionary. According to historian Boris Ilizarov, Stalin read Dostoevsky's The Brothers Karamazov several times. Works Dostoevsky's works of fiction include 15 novels and novellas, 17 short stories, and 5 translations. Many of his longer novels were first published in serialised form in literary magazines and journals. The years given below indicate the year in which the novel's final part or first complete book edition was published. In English many of his novels and stories are known by different titles. Major works Poor Folk Poor Folk is an epistolary novel that describes the relationship between the small, elderly official Makar Devushkin and the young seamstress Varvara Dobroselova, remote relatives who write letters to each other. Makar's tender, sentimental adoration for Varvara and her confident, warm friendship for him explain their evident preference for a simple life, although it keeps them in humiliating poverty. An unscrupulous merchant finds the inexperienced girl and hires her as his housewife and guarantor. He sends her to a manor somewhere on a steppe, while Makar alleviates his misery and pain with alcohol. The story focuses on poor people who struggle with their lack of self-esteem. Their misery leads to the loss of their inner freedom, to dependence on the social authorities, and to the extinction of their individuality. Dostoevsky shows how poverty and dependence are indissolubly aligned with deflection and deformation of self-esteem, combining inward and outerward suffering. Notes from Underground Notes from Underground is split into two stylistically different parts, the first essay-like, the second in narrative style. The protagonist and first-person narrator is an unnamed 40-year-old civil servant known as The Underground Man. The only known facts about his situation are that he has quit the service, lives in a basement flat on the outskirts of Saint Petersburg and finances his livelihood from a modest inheritance. The first part is a record of his thoughts about society and his character. He describes himself as vicious, squalid and ugly; the chief focuses of his polemic are the "modern human" and his vision of the world, which he attacks severely and cynically, and towards which he develops aggression and vengefulness. He considers his own decline natural and necessary. Although he emphasises that he does not intend to publish his notes for the public, the narrator appeals repeatedly to an ill-described audience, whose questions he tries to address. In the second part he describes scenes from his life that are responsible for his failure in personal and professional life and in his love life. He tells of meeting old school friends, who are in secure positions and treat him with condescension. His aggression turns inward on to himself and he tries to humiliate himself further. He presents himself as a possible saviour to the poor prostitute Lisa, advising her to reject self-reproach when she looks to him for hope. Dostoevsky added a short commentary saying that although the storyline and characters are fictional, such things were inevitable in contemporary society. The Underground Man was very influential on philosophers. His alienated existence from the mainstream influenced modernist literature. Crime and Punishment The novel Crime and Punishment has received both critical and popular acclaim, and is often cited as Dostoevsky's magnum opus. To this date, Crime and Punishment remains one of the most influential and widely read novels in Russian literature. The novel describes the fictional Rodion Raskolnikov's life, from the murder of a pawnbroker and her sister, through spiritual regeneration with the help and love of Sonya (a "hooker with a heart of gold"), to his sentence in Siberia. Strakhov liked the novel, remarking that "Only Crime and Punishment was read in 1866" and that Dostoevsky had managed to portray a Russian person aptly and realistically. In contrast, Grigory Eliseev of the radical magazine The Contemporary called the novel a "fantasy according to which the entire student body is accused without exception of attempting murder and robbery". Richard Louire, writing for The New York Times, praised the book and stated that the novel changed his life. In an article for the Encyclopaedia Britannica, Patricia Bauer argued that Crime and Punishment is both "a masterpiece" and "one of the finest studies of the psychopathology of guilt written in any language." The Idiot The novel's protagonist, the 26-year-old Prince Myshkin, returns to Russia after several years at a Swiss sanatorium. Scorned by Saint Petersburg society for his trusting nature and naivety, he finds himself at the center of a struggle between a beautiful kept woman, Nastasya, and a jealous but pretty young girl, Aglaya, both of whom win his affection. Unfortunately, Myshkin's goodness precipitates disaster, leaving the impression that, in a world obsessed with money, power and sexual conquest, a sanatorium may be the only place for a saint. Myshkin is the personification of a "relatively beautiful man", namely Christ. Coming "from above" (the Swiss mountains), he physically resembles common depictions of Jesus Christ: slightly larger than average, with thick, blond hair, sunken cheeks and a thin, almost entirely white goatee. Like Christ, Myshkin is a teacher, confessor and mysterious outsider. Passions such as greed and jealousy are
the Azusa Street Revival in Los Angeles led by William Joseph Seymour. Smith Wigglesworth was also a well-known figure in the early part of the 20th century. A former English plumber turned evangelist who lived simply and read nothing but the Bible from the time his wife taught him to read, Wigglesworth traveled around the world preaching about Jesus and performing faith healings. Wigglesworth claimed to raise several people from the dead in Jesus' name in his meetings. During the 1920s and 1930s, Aimee Semple McPherson was a controversial faith healer of growing popularity during the Great Depression. Subsequently, William M. Branham has been credited as the initiator of the post-World War II healing revivals. The healing revival he began led many to emulate his style and spawned a generation of faith healers. Because of this, Branham has been recognized as the "father of modern faith healers". According to writer and researcher Patsy Sims, "the power of a Branham service and his stage presence remains a legend unparalleled in the history of the Charismatic movement". By the late 1940s, Oral Roberts, who was associated with and promoted by Branham's Voice of Healing magazine also became well known, and he continued with faith healing until the 1980s. Roberts discounted faith healing in the late 1950s, stating, "I never was a faith healer and I was never raised that way. My parents believed very strongly in medical science and we have a doctor who takes care of our children when they get sick. I cannot heal anyone – God does that." A friend of Roberts was Kathryn Kuhlman, another popular faith healer, who gained fame in the 1950s and had a television program on CBS. Also in this era, Jack Coe and A. A. Allen were faith healers who traveled with large tents for large open-air crusades. Oral Roberts's successful use of television as a medium to gain a wider audience led others to follow suit. His former pilot, Kenneth Copeland, started a healing ministry. Pat Robertson, Benny Hinn, and Peter Popoff became well-known televangelists who claimed to heal the sick. Richard Rossi is known for advertising his healing clinics through secular television and radio. Kuhlman influenced Benny Hinn, who adopted some of her techniques and wrote a book about her. Christian Science Christian Science claims that healing is possible through prayer based on an understanding of God and the underlying spiritual perfection of God's creation. The material world as humanly perceived is believed to not be the spiritual reality. Christian Scientists believe that healing through prayer is possible insofar as it succeeds in bringing the spiritual reality of health into human experience. Christian Scientists believe that prayer does not change the spiritual creation but gives a clearer view of it, and the result appears in the human scene as healing: the human picture adjusts to coincide more nearly with the divine reality. Christian Scientists do not consider themselves to be faith healers since faith or belief in Christian Science is not required on the part of the patient, and because they consider it reliable and provable rather than random. Although there is no hierarchy in Christian Science, Christian Science practitioners devote full time to prayer for others on a professional basis, and advertise in an online directory published by the church. Christian Scientists sometimes tell their stories of healing at weekly testimony meetings at local Christian Science churches, or publish them in the church's magazines including The Christian Science Journal printed monthly since 1883, the Christian Science Sentinel printed weekly since 1898, and The Herald of Christian Science a foreign language magazine beginning with a German edition in 1903 and later expanding to Spanish, French, and Portuguese editions. Christian Science Reading Rooms often have archives of such healing accounts. The Church of Jesus Christ of Latter-day Saints The Church of Jesus Christ of Latter-day Saints (LDS) has had a long history of faith healings. Many members of the LDS Church have told their stories of healing within the LDS publication, the Ensign. The church believes healings come most often as a result of priesthood blessings given by the laying on of hands; however, prayer often accompanied with fasting is also thought to cause healings. Healing is always attributed to be God's power. Latter-day Saints believe that the Priesthood of God, held by prophets (such as Moses) and worthy disciples of the Savior, was restored via heavenly messengers to the first prophet of this dispensation, Joseph Smith. According to LDS doctrine, even though members may have the restored priesthood authority to heal in the name of Jesus Christ, all efforts should be made to seek the appropriate medical help. Brigham Young stated this effectively, while also noting that the ultimate outcome is still dependent on the will of God. Islam A number of healing traditions exist among Muslims. Some healers are particularly focused on diagnosing cases of possession by jinn or demons. Buddhism Chinese-born Australian businessman Jun Hong Lu was a prominent proponent of the "Guan Yin Citta Dharma Door", claiming that practicing the three "golden practices" of reciting texts and mantras, liberation of beings, and making vows, laid a solid foundation for improved physical, mental, and psychological well-being, with many followers publicly attesting to have been healed through practice. Scientology Some critics of Scientology have referred to some of its practices as being similar to faith healing, based on claims made by L. Ron Hubbard in Dianetics: The Modern Science of Mental Health and other writings. Scientific investigation Nearly all scientists dismiss faith healing as pseudoscience. Some opponents of the pseudoscience label assert that faith healing makes no scientific claims and thus should be treated as a matter of faith that is not testable by science. Critics reply that claims of medical cures should be tested scientifically because, although faith in the supernatural is not in itself usually considered to be the purview of science, claims of reproducible effects are nevertheless subject to scientific investigation. Scientists and doctors generally find that faith healing lacks biological plausibility or epistemic warrant, which is one of the criteria used to judge whether clinical research is ethical and financially justified. A Cochrane review of intercessory prayer found "although some of the results of individual studies suggest a positive effect of intercessory prayer, the majority do not". The authors concluded: "We are not convinced that further trials of this intervention should be undertaken and would prefer to see any resources available for such a trial used to investigate other questions in health care". A review in 1954 investigated spiritual healing, therapeutic touch and faith healing. Of the hundred cases reviewed, none revealed that the healer's intervention alone resulted in any improvement or cure of a measurable organic disability. In addition, at least one study has suggested that adult Christian Scientists, who generally use prayer rather than medical care, have a higher death rate than other people of the same age. The Global Medical Research Institute (GMRI) was created in 2012 to start collecting medical records of patients who claim to have received a supernatural healing miracle as a result of Christian Spiritual Healing practices. The organization has a panel of medical doctors who review the patient's records looking at entries prior to the claimed miracles and entries after the miracle was claimed to have taken place. “The overall goal of GMRI is to promote an empirically grounded understanding of the physiological, emotional, and sociological effects of Christian Spiritual Healing practices”. This is accomplished by applying the same rigorous standards used in other forms of medical and scientific research. A 2011 article in the New Scientist magazine cited positive physical results from meditation, positive thinking and spiritual faith Criticism Skeptics of faith healing offer primarily two explanations for anecdotes of cures or improvements, relieving any need to appeal to the supernatural. The first is post hoc ergo propter hoc, meaning that a genuine improvement or spontaneous remission may have been experienced coincidental with but independent from anything the faith healer or patient did or said. These patients would have improved just as well even had they done nothing. The second is the placebo effect, through which a person may experience genuine pain relief and other symptomatic alleviation. In this case, the patient genuinely has been helped by the faith healer or faith-based remedy, not through any mysterious or numinous function, but by the power of their own belief that they would be healed. In both cases the patient may experience a real reduction in symptoms, though in neither case has anything miraculous or inexplicable occurred. Both cases, however, are strictly limited to the body's natural abilities. According to the American Cancer Society: The American Medical Association considers that
book, it says these cures were subjected to intense medical scrutiny and were only recognized as authentic spiritual cures after a commission of doctors and scientists, called the Lourdes Medical Bureau, had ruled out any physical mechanism for the patient's recovery. Evangelicalism In some Pentecostal and Charismatic Evangelical churches, a special place is thus reserved for faith healings with laying on of hands during worship services or for campaigns evangelization. Faith healing or divine healing is considered to be an inheritance of Jesus acquired by his death and resurrection. Biblical inerrancy ensures that the miracles and healings described in the Bible are still relevant and may be present in the life of the believer. At the beginning of the 20th century, the new Pentecostal movement drew participants from the Holiness movement and other movements in America that already believed in divine healing. By the 1930s, several faith healers drew large crowds and established worldwide followings. The first Pentecostals in the modern sense appeared in Topeka, Kansas, in a Bible school conducted by Charles Fox Parham, a holiness teacher and former Methodist pastor. Pentecostalism achieved worldwide attention in 1906 through the Azusa Street Revival in Los Angeles led by William Joseph Seymour. Smith Wigglesworth was also a well-known figure in the early part of the 20th century. A former English plumber turned evangelist who lived simply and read nothing but the Bible from the time his wife taught him to read, Wigglesworth traveled around the world preaching about Jesus and performing faith healings. Wigglesworth claimed to raise several people from the dead in Jesus' name in his meetings. During the 1920s and 1930s, Aimee Semple McPherson was a controversial faith healer of growing popularity during the Great Depression. Subsequently, William M. Branham has been credited as the initiator of the post-World War II healing revivals. The healing revival he began led many to emulate his style and spawned a generation of faith healers. Because of this, Branham has been recognized as the "father of modern faith healers". According to writer and researcher Patsy Sims, "the power of a Branham service and his stage presence remains a legend unparalleled in the history of the Charismatic movement". By the late 1940s, Oral Roberts, who was associated with and promoted by Branham's Voice of Healing magazine also became well known, and he continued with faith healing until the 1980s. Roberts discounted faith healing in the late 1950s, stating, "I never was a faith healer and I was never raised that way. My parents believed very strongly in medical science and we have a doctor who takes care of our children when they get sick. I cannot heal anyone – God does that." A friend of Roberts was Kathryn Kuhlman, another popular faith healer, who gained fame in the 1950s and had a television program on CBS. Also in this era, Jack Coe and A. A. Allen were faith healers who traveled with large tents for large open-air crusades. Oral Roberts's successful use of television as a medium to gain a wider audience led others to follow suit. His former pilot, Kenneth Copeland, started a healing ministry. Pat Robertson, Benny Hinn, and Peter Popoff became well-known televangelists who claimed to heal the sick. Richard Rossi is known for advertising his healing clinics through secular television and radio. Kuhlman influenced Benny Hinn, who adopted some of her techniques and wrote a book about her. Christian Science Christian Science claims that healing is possible through prayer based on an understanding of God and the underlying spiritual perfection of God's creation. The material world as humanly perceived is believed to not be the spiritual reality. Christian Scientists believe that healing through prayer is possible insofar as it succeeds in bringing the spiritual reality of health into human experience. Christian Scientists believe that prayer does not change the spiritual creation but gives a clearer view of it, and the result appears in the human scene as healing: the human picture adjusts to coincide more nearly with the divine reality. Christian Scientists do not consider themselves to be faith healers since faith or belief in Christian Science is not required on the part of the patient, and because they consider it reliable and provable rather than random. Although there is no hierarchy in Christian Science, Christian Science practitioners devote full time to prayer for others on a professional basis, and advertise in an online directory published by the church. Christian Scientists sometimes tell their stories of healing at weekly testimony meetings at local Christian Science churches, or publish them in the church's magazines including The Christian Science Journal printed monthly since 1883, the Christian Science Sentinel printed weekly since 1898, and The Herald of Christian Science a foreign language magazine beginning with a German edition in 1903 and later expanding to Spanish, French, and Portuguese editions. Christian Science Reading Rooms often have archives of such healing accounts. The Church of Jesus Christ of Latter-day Saints The Church of Jesus Christ of Latter-day Saints (LDS) has had a long history of faith healings. Many members of the LDS Church have told their stories of healing within the LDS publication, the Ensign. The church believes healings come most often as a result of priesthood blessings given by the laying on of hands; however, prayer often accompanied with fasting is also thought to cause healings. Healing is always attributed to be God's power. Latter-day Saints believe that the Priesthood of God, held by prophets (such as Moses) and worthy disciples of the Savior, was restored via heavenly messengers to the first prophet of this dispensation, Joseph Smith. According to LDS doctrine, even though members may have the restored priesthood authority to heal in the name of Jesus Christ, all efforts should be made to seek the appropriate medical help. Brigham Young stated this effectively, while also noting that the ultimate outcome is still dependent on the will of God. Islam A number of healing traditions exist among Muslims. Some healers are particularly focused on diagnosing cases of possession by jinn or demons. Buddhism Chinese-born Australian businessman Jun Hong Lu was a prominent proponent of the "Guan Yin Citta Dharma Door", claiming that practicing the three "golden practices" of reciting texts and mantras, liberation of beings, and making vows, laid a solid foundation for improved physical, mental, and psychological well-being, with many followers publicly attesting to have been healed through practice. Scientology Some critics of Scientology have referred to some of its practices as being similar to faith healing, based on claims made by L. Ron Hubbard in Dianetics: The Modern Science of Mental Health and other writings. Scientific investigation Nearly all scientists dismiss faith healing as pseudoscience. Some opponents of the pseudoscience label assert that faith healing makes no scientific claims and thus should be treated as a matter of faith that is not testable by science. Critics reply that claims of medical cures should be tested scientifically because, although faith in the supernatural is not in itself usually considered to be the purview of science, claims of reproducible effects are nevertheless subject to scientific investigation. Scientists and doctors generally find that faith healing lacks biological plausibility or epistemic warrant, which is one of the criteria used to judge whether clinical research is ethical and financially justified. A Cochrane review of intercessory prayer found "although some of the results of individual studies suggest a positive effect of intercessory prayer, the majority do not". The authors concluded: "We are not convinced that further trials of this intervention should be undertaken and would prefer to see any resources available for such a trial used to investigate other questions in health care". A review in 1954 investigated spiritual healing, therapeutic touch and faith healing. Of the hundred cases reviewed, none revealed that the healer's intervention alone resulted in any improvement or cure of a measurable organic disability. In addition, at least one study has suggested that adult Christian Scientists, who generally use prayer rather than medical care, have a higher death rate than other people of the same age. The Global Medical Research Institute (GMRI) was created in 2012 to start collecting medical records of patients who claim to have received a supernatural healing miracle as a result of Christian Spiritual Healing practices. The organization has a panel of medical doctors who review the patient's records looking at entries prior to the claimed miracles and entries after the miracle was claimed to have taken place. “The overall goal of GMRI is to promote an empirically grounded understanding of the physiological, emotional, and sociological effects of Christian Spiritual Healing practices”. This is accomplished by applying the same rigorous standards used in other forms of medical and scientific research. A 2011 article in the New Scientist magazine cited positive physical results from meditation, positive thinking and spiritual faith Criticism Skeptics of faith healing offer primarily two explanations for anecdotes of cures or improvements, relieving any need to appeal to the supernatural. The first is post hoc ergo propter hoc, meaning that a genuine improvement or spontaneous remission may have been experienced coincidental with but independent from anything the faith healer or patient did or said. These patients would have improved just as well even had they done nothing. The second is the placebo effect, through which a person may experience genuine pain relief and other symptomatic alleviation. In this case, the patient genuinely has been helped by the faith healer or faith-based remedy, not through any mysterious or numinous function, but by the power of their own belief that they would be healed. In both cases the patient may experience a real reduction in symptoms, though in neither case has anything miraculous or inexplicable occurred. Both cases, however, are strictly limited to the body's natural abilities. According to the American Cancer Society: The American Medical Association considers that prayer as therapy should not be a medically reimbursable or deductible expense. Belgian philosopher and skeptic Etienne Vermeersch coined the term Lourdes effect as a criticism of the magical thinking and placebo effect possibilities for the claimed miraculous cures as there are no documented events
Wendell H. Furry (1907–1984), an American physicist Furry Lewis (Walter E. Lewis, 1893 or 1899 – 1981), an American country blues guitarist and
with fur Wendell H. Furry (1907–1984), an American physicist Furry Lewis (Walter E. Lewis, 1893
time before being hired as a writer at Decla Film, Erich Pommer's Berlin-based production company. In 1919, he married for the first time to Lisa Rosenthal, a Jewish girl; in 1921, she died under mysterious circumstances, dying of a single gunshot wound deemed to have been fired by a sidearm weapon from World War I. Expressionist films: the Weimar years (1918–1933) Lang's writing stint was brief, as he soon started to work as a director at the German film studio UFA, and later Nero-Film, just as the Expressionist movement was building. In this first phase of his career, Lang alternated between films such as Der Müde Tod ("The Weary Death") and popular thrillers such as Die Spinnen ("The Spiders"), combining popular genres with Expressionist techniques to create an unprecedented synthesis of popular entertainment with art cinema. In 1920, Lang met his future wife, the writer Thea von Harbou. She and Lang co-wrote all of his movies from 1921 through 1933, including Dr. Mabuse, der Spieler ("Dr. Mabuse the Gambler," 1922 - which ran for over four hours, in two parts in the original version, and was the first in the Dr. Mabuse trilogy), the five-hour Die Nibelungen (1924), the dystopian film Metropolis (1927), and the science fiction film Woman in the Moon (1929). Metropolis went far over budget and nearly destroyed UFA, which was bought by right-wing businessman and politician Alfred Hugenberg. It was a financial flop, as were his last silent films Spies (1928) and Woman in the Moon, produced by Lang's own company. In 1931, independent producer Seymour Nebenzahl hired Lang to direct M for Nero-Film. His first "talking" picture, considered by many film scholars to be a masterpiece of the early sound era, M is a disturbing story of a child murderer (Peter Lorre in his first starring role) who is hunted down and brought to rough justice by Berlin's criminal underworld. M remains a powerful work; it was remade in 1951 by Joseph Losey, but this version had little impact on audiences, and has become harder to see than the original film. During the climactic final scene in M, Lang allegedly threw Peter Lorre down a flight of stairs in order to give more authenticity to Lorre's battered look. Lang, who was known for being hard to work with, epitomized the stereotype of the tyrannical Germanic film director, a type embodied also by Erich von Stroheim and Otto Preminger; Lang wore a monocle adding to the stereotype. In the films of his German period, Lang produced a coherent oeuvre that established the characteristics later attributed to film noir, with its recurring themes of psychological conflict, paranoia, fate and moral ambiguity. At the end of 1932, Lang started filming The Testament of Dr. Mabuse. Adolf Hitler came to power in January 1933, and by March 30, the new regime banned it as an incitement to public disorder. Testament is sometimes deemed an anti-Nazi film, as Lang had put phrases used by the Nazis into the mouth of the title character. A screening of the film was cancelled by Joseph Goebbels, and it was later banned by the Reich Ministry of Public Enlightenment and Propaganda. In banning the film, Goebbels stated that the film "showed that an extremely dedicated group of people are perfectly capable of overthrowing any state with violence", and that the film posed a threat to public health and safety. Lang was worried about the advent of the Nazi regime, partly because of his Jewish heritage, whereas his wife and co-screenwriter Thea von Harbou had started to sympathize with the Nazis in the early 1930s, and later joined the NSDAP in 1940. They soon divorced. Lang's fears would be realized following his departure from Austria, as under the Nuremberg Laws he would be identified as a part-Jew even though his mother was a converted Roman Catholic, and he was raised as such. Emigration According to Lang, propaganda minister Joseph Goebbels called Lang to his offices to inform him – apologetically – that The Testament of Dr Mabuse was being banned
Woman in the Window (1944), Scarlet Street (1945) and The Big Heat (1953). Life and career Early life Lang was born in Vienna, as the second son of Anton Lang (1860–1940), an architect and construction company manager, and his wife Pauline "Paula" Lang ( Schlesinger; 1864–1920). He was baptized on December 28, 1890, at the Schottenkirche in Vienna. He had an elder brother, Adolf (1884–?). Lang's parents were of Moravian descent and practising Catholics. His parents (his mother, born Jewish, converted to Roman Catholicism before Fritz's birth) took their religion seriously and were dedicated to raising Fritz as a Catholic. Lang frequently had Catholic-influenced themes in his films. Late in life, he described himself as "a born Catholic and very puritan". Although an atheist, Lang believed that religion was important for teaching ethics. After finishing school, Lang briefly attended the Technical University of Vienna, where he studied civil engineering and eventually switched to art. He left Vienna in 1910 in order to see the world, traveling throughout Europe and Africa, and later Asia and the Pacific area. In 1913, he studied painting in Paris. At the outbreak of World War I, Lang returned to Vienna and volunteered for military service in the Austrian army and fought in Russia and Romania, where he was wounded four times and lost sight in his right eye, the first of many vision issues he would face in his lifetime. While recovering from his injuries and shell shock in 1916, he wrote some scenarios and ideas for films. He was discharged from the army with the rank of lieutenant in 1918 and did some acting in the Viennese theater circuit for a short time before being hired as a writer at Decla Film, Erich Pommer's Berlin-based production company. In 1919, he married for the first time to Lisa Rosenthal, a Jewish girl; in 1921, she died under mysterious circumstances, dying of a single gunshot wound deemed to have been fired by a sidearm weapon from World War I. Expressionist films: the Weimar years (1918–1933) Lang's writing stint was brief, as he soon started to work as a director at the German film studio UFA, and later Nero-Film, just as the Expressionist movement was building. In this first phase of his career, Lang alternated between films such as Der Müde Tod ("The Weary Death") and popular thrillers such as Die Spinnen ("The Spiders"), combining popular genres with Expressionist techniques to create an unprecedented synthesis of popular entertainment with art cinema. In 1920, Lang met his future wife, the writer Thea von Harbou. She and Lang co-wrote all of his movies from 1921 through 1933, including Dr. Mabuse, der Spieler ("Dr. Mabuse the Gambler," 1922 - which ran for over four hours, in two parts in the original version, and was the first in the Dr. Mabuse trilogy), the five-hour Die Nibelungen (1924), the dystopian film Metropolis (1927), and the science fiction film Woman in the Moon (1929). Metropolis went far over budget and nearly destroyed UFA, which was bought by right-wing businessman and politician Alfred Hugenberg. It was a financial flop, as were his last silent films Spies (1928) and Woman in the Moon, produced by Lang's own company. In 1931, independent producer Seymour Nebenzahl hired Lang to direct M for Nero-Film. His first "talking" picture, considered by many film scholars to be a masterpiece of the early sound era, M is a disturbing story of a child murderer (Peter Lorre in his first starring role) who is hunted down and brought to rough justice by Berlin's criminal underworld. M remains a powerful work; it was remade in 1951 by Joseph Losey, but this version had little impact on audiences, and has become harder to see than the original film. During the climactic final scene in M, Lang allegedly threw Peter Lorre down a flight of stairs in order to give more authenticity to Lorre's battered look. Lang, who was known for being hard to work with, epitomized the stereotype of the tyrannical Germanic film director, a type embodied also by Erich von Stroheim and Otto Preminger; Lang wore a monocle adding to the stereotype. In the films of his German period, Lang produced a coherent oeuvre that established the characteristics later attributed to film noir, with its recurring themes of psychological conflict, paranoia, fate and moral ambiguity. At the end of 1932, Lang started filming The Testament of Dr. Mabuse. Adolf Hitler came to power in January 1933, and by March 30, the new regime banned it as an incitement to public disorder. Testament is sometimes deemed an anti-Nazi film, as Lang had
and dietary supplements The regulation of food and dietary supplements by the Food and Drug Administration is governed by various statutes enacted by the United States Congress and interpreted by the FDA. Pursuant to the Federal Food, Drug, and Cosmetic Act and accompanying legislation, the FDA has authority to oversee the quality of substances sold as food in the United States, and to monitor claims made in the labeling of both the composition and the health benefits of foods. The FDA subdivides substances that it regulates as food into various categories—including foods, food additives, added substances (man-made substances that are not intentionally introduced into food, but nevertheless end up in it), and dietary supplements. Dietary supplements or dietary ingredients include vitamins, minerals, herbs, amino acids, and. enzymes. Specific standards the FDA exercises differ from one category to the next. Furthermore, legislation had granted the FDA a variety of means to address violations of standards for a given substance category. Under the Dietary Supplement Health and Education Act of 1994 (DSHEA), the FDA is responsible for ensuring that manufacturers and distributors of dietary supplements and dietary ingredients meet the current requirements. These manufacturers and distributors are not allowed to advertise their products in an adulterated way, and they are responsible for evaluating the safety and labeling of their product. The FDA has a “Dietary Supplement Ingredient Advisory List” that includes ingredients that sometimes appear on dietary supplements but need further evaluation further. An ingredient is added to this list when it is excluded from use in a dietary supplement, does not appear to be an approved food additive or recognized as safe, and/or is subjected to the requirement for pre-market notification without having a satisfied requirement. "FDA-Approved" vs. "FDA-Accepted in Food Processing" The FDA does not approve applied coatings used in the food processing industry. There is no review process to approve the composition of nonstick coatings; nor does the FDA inspect or test these materials. Through their governing of processes, however, the FDA does have a set of regulations that cover the formulation, manufacturing, and use of nonstick coatings. Hence, materials like Polytetrafluoroethylene (Teflon) are not, and cannot be, considered as FDA Approved, rather, they are "FDA Compliant" or "FDA Acceptable". Medical countermeasures (MCMs) Medical countermeasures (MCMs) are products such as biologics and pharmaceutical drugs that can protect from or treat the health effects of a chemical, biological, radiological, or nuclear (CBRN) attack. MCMs can also be used for prevention and diagnosis of symptoms associated with CBRN attacks or threats. The FDA runs a program called the "FDA Medical Countermeasures Initiative" (MCMi), with programs funded by the federal government. It helps support "partner" agencies and organisations prepare for public health emergencies that could require MCMs. Medications The Center for Drug Evaluation and Research uses different requirements for the three main drug product types: new drugs, generic drugs, and over-the-counter drugs. A drug is considered "new" if it is made by a different manufacturer, uses different excipients or inactive ingredients, is used for a different purpose, or undergoes any substantial change. The most rigorous requirements apply to new molecular entities: drugs that are not based on existing medications. New medications New drugs receive extensive scrutiny before FDA approval in a process called a new drug application (NDA). Under the Trump administration, the agency has worked to make the drug-approval process go faster. Critics, however, argue that the FDA standards are not sufficiently rigorous, allowing unsafe or ineffective drugs to be approved. New drugs are available only by prescription by default. A change to over-the-counter (OTC) status is a separate process, and the drug must be approved through an NDA first. A drug that is approved is said to be "safe and effective when used as directed". Very rare limited exceptions to this multi-step process involving animal testing and controlled clinical trials can be granted out of compassionate use protocols. This was the case during the 2015 Ebola epidemic with the use, by prescription and authorization, of ZMapp and other experimental treatments, and for new drugs that can be used to treat debilitating and/or very rare conditions for which no existing remedies or drugs are satisfactory, or where there has not been an advance in a long period of time. The studies are progressively longer, gradually adding more individuals as they progress from stage I to stage III, normally over a period of years, and normally involve drug companies, the government and its laboratories, and often medical schools and hospitals and clinics. However, any exceptions to the aforementioned process are subject to strict review and scrutiny and conditions, and are only given if a substantial amount of research and at least some preliminary human testing has shown that they are believed to be somewhat safe and possibly effective. (See FDA Special Protocol Assessment about Phase III trials.) Advertising and promotion The FDA's Office of Prescription Drug Promotion reviews and regulates prescription drug advertising and promotion through surveillance activities and issuance of enforcement letters to pharmaceutical manufacturers. Advertising and promotion for over-the-counter drugs is regulated by the Federal Trade Commission. The FDA also empowers third-party enforcer-firms to engage in some regulatory oversight, e.g. the FDA expects pharmaceutical companies to make sure that third-party suppliers and labs abide by the agency's health and safety guidelines. The drug advertising regulation contains two broad requirements: (1) a company may advertise or promote a drug only for the specific indication or medical use for which it was approved by FDA. Also, an advertisement must contain a "fair balance" between the benefits and the risks (side effects) of a drug. The term off-label refers to drug usage for indications other than those approved by the FDA. Post-market safety surveillance After NDA approval, the sponsor must then review and report to the FDA every single patient adverse drug experience it learns of. They must report unexpected serious and fatal adverse drug events within 15 days, and other events on a quarterly basis. The FDA also receives directly adverse drug event reports through its MedWatch program. These reports are called "spontaneous reports" because reporting by consumers and health professionals is voluntary. While this remains the primary tool of post-market safety surveillance, FDA requirements for post-marketing risk management are increasing. As a condition of approval, a sponsor may be required to conduct additional clinical trials, called Phase IV trials. In some cases, the FDA requires risk management plans called Risk Evaluation and Mitigation Strategies (REMS) for some drugs that require actions to be taken to ensure that the drug is used safely. For example, thalidomide can cause birth defects, but has uses that outweigh the risks if men and women taking the drugs do not conceive a child; a REMS program for thalidomide mandates an auditable process to ensure that people taking the drug take action to avoid pregnancy; many opioid drugs have REMS programs to avoid addiction and diversion of drugs. The drug isotretinoin has a REMS program called iPLEDGE. Generic drugs Generic drugs are chemical and therapeutic equivalents of name-brand drugs whose patents have expired. Approved generic drugs should have the same dosage, safety, effectiveness, strength, stability, and quality, as well as route of administration. In general, they are less expensive than their name brand counterparts, are manufactured and marketed by rival companies and, in the 1990s, accounted for about a third of all prescriptions written in the United States. For a pharmaceutical company to gain approval to produce a generic drug, the FDA requires scientific evidence that the generic drug is interchangeable with or therapeutically equivalent to the originally approved drug. This is called an Abbreviated New Drug Application (ANDA). As of 2012, 80% of all FDA approved drugs are available in generic form. Generic drug scandal In 1989, a major scandal erupted involving the procedures used by the FDA to approve generic drugs for sale to the public. Charges of corruption in generic drug approval first emerged in 1988 during the course of an extensive congressional investigation into the FDA. The oversight subcommittee of the United States House Energy and Commerce Committee resulted from a complaint brought against the FDA by Mylan Laboratories Inc. of Pittsburgh. When its application to manufacture generics were subjected to repeated delays by the FDA, Mylan, convinced that it was being discriminated against, soon began its own private investigation of the agency in 1987. Mylan eventually filed suit against two former FDA employees and four drug-manufacturing companies, charging that corruption within the federal agency resulted in racketeering and in violations of antitrust law. "The order in which new generic drugs were approved was set by the FDA employees even before drug manufacturers submitted applications" and, according to Mylan, this illegal procedure was followed to give preferential treatment to certain companies. During the summer of 1989, three FDA officials (Charles Y. Chang, David J. Brancato, Walter Kletch) pleaded guilty to criminal charges of accepting bribes from generic drugs makers, and two companies (Par Pharmaceutical and its subsidiary Quad Pharmaceuticals) pleaded guilty to giving bribes. Furthermore, it was discovered that several manufacturers had falsified data submitted in seeking FDA authorization to market certain generic drugs. Vitarine Pharmaceuticals of New York, which sought approval of a generic version of the drug Dyazide, a medication for high blood pressure, submitted Dyazide, rather than its generic version, for the FDA tests. In April 1989, the FDA investigated 11 manufacturers for irregularities; and later brought that number up to 13. Dozens of drugs were eventually suspended or recalled by manufacturers. In the early 1990s, the U.S. Securities and Exchange Commission filed securities fraud charges against the Bolar Pharmaceutical Company, a major generic manufacturer based in Long Island, New York. Over-the-counter drugs Over-the-counter (OTC) are drugs like aspirin that do not require a doctor's prescription. The FDA has a list of approximately 800 such approved ingredients that are combined in various ways to create more than 100,000 OTC drug products. Many OTC drug ingredients had been previously approved prescription drugs now deemed safe enough for use without a medical practitioner's supervision like ibuprofen. Ebola treatment In 2014, the FDA added an Ebola treatment being developed by Canadian pharmaceutical company Tekmira to the Fast Track program, but halted the phase 1 trials in July pending the receipt of more information about how the drug works. This was widely viewed as increasingly important in the face of a major outbreak of the disease in West Africa that began in late March 2014 and ended in June 2016. Coronavirus (COVID-19) testing During the coronavirus pandemic, FDA granted emergency use authorization for personal protective equipment (PPE), in vitro diagnostic equipment, ventilators and other medical devices. On March 18, 2020, FDA inspectors postponed most foreign facility inspections and all domestic routine surveillance facility inspections. In contrast, the USDA's Food Safety and Inspection Service (FSIS) continued inspections of meatpacking plants, which resulted in 145 FSIS field employees who tested positive for COVID-19, and three who died. Vaccines, blood and tissue products, and biotechnology The Center for Biologics Evaluation and Research is the branch of the FDA responsible for ensuring the safety and efficacy of biological therapeutic agents. These include blood and blood products, vaccines, allergenics, cell and tissue-based products, and gene therapy products. New biologics are required to go through a premarket approval process called a Biologics License Application (BLA), similar to that for drugs. The original authority for government regulation of biological products was established by the 1902 Biologics Control Act, with additional authority established by the 1944 Public Health Service Act. Along with these Acts, the Federal Food, Drug, and Cosmetic Act applies to all biologic products, as well. Originally, the entity responsible for regulation of biological products resided under the National Institutes of Health; this authority was transferred to the FDA in 1972. Medical and radiation-emitting devices The Center for Devices and Radiological Health (CDRH) is the branch of the FDA responsible for the premarket approval of all medical devices, as well as overseeing the manufacturing, performance and safety of these devices. The definition of a medical device is given in the FD&C Act, and it includes products from the simple toothbrush to complex devices such as implantable neurostimulators. CDRH also oversees the safety performance of non-medical devices that emit certain types of electromagnetic radiation. Examples of CDRH-regulated devices include cellular phones, airport baggage screening equipment, television receivers, microwave ovens, tanning booths, and laser products. CDRH regulatory powers include the authority to require certain technical reports from the manufacturers or importers of regulated products, to require that radiation-emitting products meet mandatory safety performance standards, to declare regulated products defective, and to order the recall of defective or noncompliant products. CDRH also conducts limited amounts of direct product testing. "FDA-Cleared" vs "FDA-Approved" Clearance requests are required for medical devices that prove they are "substantially equivalent" to the predicate devices already on the market. Approved requests are for items that are new or substantially different and need to demonstrate "safety and efficacy", for example they may be inspected for safety in case of new toxic hazards. Both aspects need to be proved or provided by the submitter to ensure proper procedures are followed. Cosmetics Cosmetics are regulated by the Center for Food Safety and Applied Nutrition, the same branch of the FDA that regulates food. Cosmetic products are not, in general, subject to premarket approval by the FDA unless they make "structure or function claims" that make them into drugs (see Cosmeceutical). However, all color additives must be specifically FDA approved before manufacturers can include them in cosmetic products sold in the U.S. The FDA regulates cosmetics labeling, and cosmetics that have not been safety tested must bear a warning to that effect. According to the industry advocacy group the American Council on Science and Health, though the cosmetic industry is predominantly responsible in ensuring the safety of its products, the FDA also has the power to intervene when necessary to protect the public but in general does not require pre-market approval or testing. The ACSH says that companies are required to place a warning note on their products if they have not been tested and that experts in cosmetic ingredient reviews also play a role in monitoring safety through influence on the use of ingredients, but also lack legal authority. According to the ACSH, overall the organization has reviewed about 1,200 ingredients and has suggested that several hundred be restricted, but there is no standard or systemic method for reviewing chemicals for safety and a clear definition of what is meant by 'safety' so that all chemicals are tested on the same basis. Veterinary products The Center for Veterinary Medicine (CVM) is a center of the FDA that regulates food additives and drugs that are given to animals. CVM regulates animal drugs, animal food including pet animal, and animal medical devices. The FDA's requirements to prevent the spread of bovine spongiform encephalopathy are also administered by CVM through inspections of feed manufacturers. CVM does not regulate vaccines for animals; these are handled by the United States Department of Agriculture. Tobacco products The FDA regulates tobacco products with authority established by the 2009 Family Smoking Prevention and Tobacco Control Act. This Act requires color warnings on cigarette packages and printed advertising, and text warnings from the U.S. Surgeon General. The nine new graphic warning labels were announced by the FDA in June 2011 and were scheduled to be required to appear on packaging by September 2012. The implementation date is uncertain, due to ongoing proceedings in the case of R.J. Reynolds Tobacco Co. v. U.S. Food and Drug Administration. R.J. Reynolds, Lorillard, Commonwealth Brands, Liggett Group and Santa Fe Natural Tobacco Company have filed suit in Washington, D.C. federal court claiming that the graphic labels are an unconstitutional way of forcing tobacco companies to engage in anti-smoking advocacy on the government's behalf. A First Amendment lawyer, Floyd Abrams, is representing the tobacco companies in the case, contending requiring graphic warning labels on a lawful product cannot withstand constitutional scrutiny. The Association of National Advertisers and the American Advertising Federation have also filed a brief in the suit, arguing that the labels infringe on commercial free speech and could lead to further government intrusion if left unchallenged. In November 2011, Federal judge Richard Leon of the U.S. District Court for the District of Columbia temporarily halted the new labels, likely delaying the requirement that tobacco companies display the labels. The U.S. Supreme Court ultimately could decide the matter. In July 2017, the FDA announced a plan that would reduce the current levels of nicotine permitted in tobacco cigarettes. Regulation of living organisms With acceptance of premarket notification 510(k) k033391 in January 2004, the FDA granted Dr. Ronald Sherman permission to produce and market medical maggots for use in humans or other animals as a prescription medical device. Medical maggots represent the first living organism allowed by the Food and Drug Administration for production and marketing as a prescription medical device. In June 2004, the FDA cleared Hirudo medicinalis (medicinal leeches) as the second living organism to be used as a medical device. The FDA also requires milk to be pasteurized to remove bacteria. International Cooperation In February 2011, President Barack Obama and Canadian Prime Minister Stephen Harper issued a "Declaration on a Shared Vision for Perimeter Security and Economic Competitiveness" and announced the creation of the Canada-United States Regulatory Cooperation Council (RCC) "to increase regulatory transparency and coordination between the two countries.” Under the RCC mandate, the FDA and Health Canada undertook a "first of its kind" initiative by selecting "as its first area of alignment common cold indications for certain over-the-counter antihistamine ingredients (GC 2013-01-10)." A more recent example of the FDA's international work is their 2018 cooperation with regulatory and law-enforcement agencies worldwide through Interpol as part of Operation Pangea XI. The FDA targeted 465 websites that illegally sold potentially dangerous, unapproved versions of opioid, oncology, and antiviral prescription drugs to U.S. consumers. The agency focused on transaction laundering schemes in order to uncover the complex online drug network. Science and research programs The FDA carries out research and development activities to develop technology and standards that support its regulatory role, with the objective of resolving scientific and technical challenges before they become impediments. The FDA's research efforts include the areas of biologics, medical devices, drugs, women's health, toxicology, food safety and applied nutrition, and veterinary medicine. Data management The FDA has collected a large amount of data through the decades. The OpenFDA project was created to enable easy access of the data for the public and was officially launched in June 2014. History Up until the 20th century, there were few federal laws regulating the contents and sale of domestically produced food and pharmaceuticals, with one exception being the short-lived Vaccine Act of 1813. The history of the FDA can be traced to the latter part of the 19th century and the Division of Chemistry of the U.S. Department of Agriculture, which was itself derived from the Copyright and Patent Clause. Under Harvey Washington Wiley, appointed chief chemist in 1883, the Division began conducting research into the adulteration and misbranding of food and drugs on the American market. Wiley's advocacy came at a time when the public had become aroused to hazards in the marketplace by muckraking journalists like Upton Sinclair, and became part of a general trend for increased federal regulations in matters pertinent to public safety during the Progressive Era. The Biologics Control Act of 1902 was put in place after a diphtheria antitoxin—derived from tetanus-contaminated serum—was used to produce a vaccine that caused the deaths of thirteen children in St. Louis, Missouri. The serum was originally collected from a horse named Jim who had contracted tetanus. In June 1906, President Theodore Roosevelt signed into law the Pure Food and Drug Act of 1906, also known as the "Wiley Act" after its chief advocate. The Act prohibited, under penalty of seizure of goods, the interstate transport of food that had been "adulterated". The Act applied similar penalties to the interstate marketing of "adulterated" drugs, in which the "standard of strength, quality, or purity" of the active ingredient was not either stated clearly on the label or listed in the United States Pharmacopeia or the National Formulary. The responsibility for examining food and drugs for such "adulteration" or "misbranding" was given to Wiley's USDA Bureau of Chemistry. Wiley used these new regulatory powers to pursue an aggressive campaign against the manufacturers of foods with chemical additives, but the Chemistry Bureau's authority was soon checked by judicial decisions, which narrowly defined the bureau's powers and set high standards for proof of fraudulent intent. In 1927, the Bureau of Chemistry's regulatory powers were reorganized under a new USDA body, the Food, Drug, and Insecticide Administration. This name was shortened to the Food and Drug Administration (FDA) three years later. By the 1930s, muckraking journalists, consumer protection organizations, and federal regulators began mounting a campaign for stronger regulatory authority by publicizing a list of injurious products that had been ruled permissible under the 1906 law, including radioactive beverages, the mascara Lash lure which caused blindness, and worthless "cures" for diabetes and tuberculosis. The resulting proposed law was unable to get through the Congress of the United States for five years, but was rapidly enacted into law following the public outcry over the 1937 Elixir Sulfanilamide tragedy, in which over 100 people died after using a drug formulated with a toxic, untested solvent. President Franklin Delano Roosevelt signed the Federal Food, Drug, and Cosmetic Act into law on June 24, 1938. The new law significantly increased federal regulatory authority over drugs by mandating a pre-market review of the safety of all new drugs, as well as banning false therapeutic claims in drug labeling without requiring that the FDA prove fraudulent intent. Soon after passage of the 1938 Act, the FDA began to designate certain drugs as safe for use only under the supervision of a medical professional, and the category of "prescription-only" drugs was securely codified into law by the Durham-Humphrey Amendment in 1951. These developments confirmed extensive powers for the FDA to enforce post-marketing recalls of ineffective drugs. Outside of the US, the drug thalidomide was marketed for the relief of general nausea and morning sickness, but caused birth defects and even the death of thousands of babies when taken during pregnancy. American mothers were largely unaffected as Dr. Frances Oldham Kelsey of the FDA refused to authorize the medication for market. In 1962, the Kefauver-Harris Amendment to the FD&C Act was passed, which represented
the safety and labeling of their product. The FDA has a “Dietary Supplement Ingredient Advisory List” that includes ingredients that sometimes appear on dietary supplements but need further evaluation further. An ingredient is added to this list when it is excluded from use in a dietary supplement, does not appear to be an approved food additive or recognized as safe, and/or is subjected to the requirement for pre-market notification without having a satisfied requirement. "FDA-Approved" vs. "FDA-Accepted in Food Processing" The FDA does not approve applied coatings used in the food processing industry. There is no review process to approve the composition of nonstick coatings; nor does the FDA inspect or test these materials. Through their governing of processes, however, the FDA does have a set of regulations that cover the formulation, manufacturing, and use of nonstick coatings. Hence, materials like Polytetrafluoroethylene (Teflon) are not, and cannot be, considered as FDA Approved, rather, they are "FDA Compliant" or "FDA Acceptable". Medical countermeasures (MCMs) Medical countermeasures (MCMs) are products such as biologics and pharmaceutical drugs that can protect from or treat the health effects of a chemical, biological, radiological, or nuclear (CBRN) attack. MCMs can also be used for prevention and diagnosis of symptoms associated with CBRN attacks or threats. The FDA runs a program called the "FDA Medical Countermeasures Initiative" (MCMi), with programs funded by the federal government. It helps support "partner" agencies and organisations prepare for public health emergencies that could require MCMs. Medications The Center for Drug Evaluation and Research uses different requirements for the three main drug product types: new drugs, generic drugs, and over-the-counter drugs. A drug is considered "new" if it is made by a different manufacturer, uses different excipients or inactive ingredients, is used for a different purpose, or undergoes any substantial change. The most rigorous requirements apply to new molecular entities: drugs that are not based on existing medications. New medications New drugs receive extensive scrutiny before FDA approval in a process called a new drug application (NDA). Under the Trump administration, the agency has worked to make the drug-approval process go faster. Critics, however, argue that the FDA standards are not sufficiently rigorous, allowing unsafe or ineffective drugs to be approved. New drugs are available only by prescription by default. A change to over-the-counter (OTC) status is a separate process, and the drug must be approved through an NDA first. A drug that is approved is said to be "safe and effective when used as directed". Very rare limited exceptions to this multi-step process involving animal testing and controlled clinical trials can be granted out of compassionate use protocols. This was the case during the 2015 Ebola epidemic with the use, by prescription and authorization, of ZMapp and other experimental treatments, and for new drugs that can be used to treat debilitating and/or very rare conditions for which no existing remedies or drugs are satisfactory, or where there has not been an advance in a long period of time. The studies are progressively longer, gradually adding more individuals as they progress from stage I to stage III, normally over a period of years, and normally involve drug companies, the government and its laboratories, and often medical schools and hospitals and clinics. However, any exceptions to the aforementioned process are subject to strict review and scrutiny and conditions, and are only given if a substantial amount of research and at least some preliminary human testing has shown that they are believed to be somewhat safe and possibly effective. (See FDA Special Protocol Assessment about Phase III trials.) Advertising and promotion The FDA's Office of Prescription Drug Promotion reviews and regulates prescription drug advertising and promotion through surveillance activities and issuance of enforcement letters to pharmaceutical manufacturers. Advertising and promotion for over-the-counter drugs is regulated by the Federal Trade Commission. The FDA also empowers third-party enforcer-firms to engage in some regulatory oversight, e.g. the FDA expects pharmaceutical companies to make sure that third-party suppliers and labs abide by the agency's health and safety guidelines. The drug advertising regulation contains two broad requirements: (1) a company may advertise or promote a drug only for the specific indication or medical use for which it was approved by FDA. Also, an advertisement must contain a "fair balance" between the benefits and the risks (side effects) of a drug. The term off-label refers to drug usage for indications other than those approved by the FDA. Post-market safety surveillance After NDA approval, the sponsor must then review and report to the FDA every single patient adverse drug experience it learns of. They must report unexpected serious and fatal adverse drug events within 15 days, and other events on a quarterly basis. The FDA also receives directly adverse drug event reports through its MedWatch program. These reports are called "spontaneous reports" because reporting by consumers and health professionals is voluntary. While this remains the primary tool of post-market safety surveillance, FDA requirements for post-marketing risk management are increasing. As a condition of approval, a sponsor may be required to conduct additional clinical trials, called Phase IV trials. In some cases, the FDA requires risk management plans called Risk Evaluation and Mitigation Strategies (REMS) for some drugs that require actions to be taken to ensure that the drug is used safely. For example, thalidomide can cause birth defects, but has uses that outweigh the risks if men and women taking the drugs do not conceive a child; a REMS program for thalidomide mandates an auditable process to ensure that people taking the drug take action to avoid pregnancy; many opioid drugs have REMS programs to avoid addiction and diversion of drugs. The drug isotretinoin has a REMS program called iPLEDGE. Generic drugs Generic drugs are chemical and therapeutic equivalents of name-brand drugs whose patents have expired. Approved generic drugs should have the same dosage, safety, effectiveness, strength, stability, and quality, as well as route of administration. In general, they are less expensive than their name brand counterparts, are manufactured and marketed by rival companies and, in the 1990s, accounted for about a third of all prescriptions written in the United States. For a pharmaceutical company to gain approval to produce a generic drug, the FDA requires scientific evidence that the generic drug is interchangeable with or therapeutically equivalent to the originally approved drug. This is called an Abbreviated New Drug Application (ANDA). As of 2012, 80% of all FDA approved drugs are available in generic form. Generic drug scandal In 1989, a major scandal erupted involving the procedures used by the FDA to approve generic drugs for sale to the public. Charges of corruption in generic drug approval first emerged in 1988 during the course of an extensive congressional investigation into the FDA. The oversight subcommittee of the United States House Energy and Commerce Committee resulted from a complaint brought against the FDA by Mylan Laboratories Inc. of Pittsburgh. When its application to manufacture generics were subjected to repeated delays by the FDA, Mylan, convinced that it was being discriminated against, soon began its own private investigation of the agency in 1987. Mylan eventually filed suit against two former FDA employees and four drug-manufacturing companies, charging that corruption within the federal agency resulted in racketeering and in violations of antitrust law. "The order in which new generic drugs were approved was set by the FDA employees even before drug manufacturers submitted applications" and, according to Mylan, this illegal procedure was followed to give preferential treatment to certain companies. During the summer of 1989, three FDA officials (Charles Y. Chang, David J. Brancato, Walter Kletch) pleaded guilty to criminal charges of accepting bribes from generic drugs makers, and two companies (Par Pharmaceutical and its subsidiary Quad Pharmaceuticals) pleaded guilty to giving bribes. Furthermore, it was discovered that several manufacturers had falsified data submitted in seeking FDA authorization to market certain generic drugs. Vitarine Pharmaceuticals of New York, which sought approval of a generic version of the drug Dyazide, a medication for high blood pressure, submitted Dyazide, rather than its generic version, for the FDA tests. In April 1989, the FDA investigated 11 manufacturers for irregularities; and later brought that number up to 13. Dozens of drugs were eventually suspended or recalled by manufacturers. In the early 1990s, the U.S. Securities and Exchange Commission filed securities fraud charges against the Bolar Pharmaceutical Company, a major generic manufacturer based in Long Island, New York. Over-the-counter drugs Over-the-counter (OTC) are drugs like aspirin that do not require a doctor's prescription. The FDA has a list of approximately 800 such approved ingredients that are combined in various ways to create more than 100,000 OTC drug products. Many OTC drug ingredients had been previously approved prescription drugs now deemed safe enough for use without a medical practitioner's supervision like ibuprofen. Ebola treatment In 2014, the FDA added an Ebola treatment being developed by Canadian pharmaceutical company Tekmira to the Fast Track program, but halted the phase 1 trials in July pending the receipt of more information about how the drug works. This was widely viewed as increasingly important in the face of a major outbreak of the disease in West Africa that began in late March 2014 and ended in June 2016. Coronavirus (COVID-19) testing During the coronavirus pandemic, FDA granted emergency use authorization for personal protective equipment (PPE), in vitro diagnostic equipment, ventilators and other medical devices. On March 18, 2020, FDA inspectors postponed most foreign facility inspections and all domestic routine surveillance facility inspections. In contrast, the USDA's Food Safety and Inspection Service (FSIS) continued inspections of meatpacking plants, which resulted in 145 FSIS field employees who tested positive for COVID-19, and three who died. Vaccines, blood and tissue products, and biotechnology The Center for Biologics Evaluation and Research is the branch of the FDA responsible for ensuring the safety and efficacy of biological therapeutic agents. These include blood and blood products, vaccines, allergenics, cell and tissue-based products, and gene therapy products. New biologics are required to go through a premarket approval process called a Biologics License Application (BLA), similar to that for drugs. The original authority for government regulation of biological products was established by the 1902 Biologics Control Act, with additional authority established by the 1944 Public Health Service Act. Along with these Acts, the Federal Food, Drug, and Cosmetic Act applies to all biologic products, as well. Originally, the entity responsible for regulation of biological products resided under the National Institutes of Health; this authority was transferred to the FDA in 1972. Medical and radiation-emitting devices The Center for Devices and Radiological Health (CDRH) is the branch of the FDA responsible for the premarket approval of all medical devices, as well as overseeing the manufacturing, performance and safety of these devices. The definition of a medical device is given in the FD&C Act, and it includes products from the simple toothbrush to complex devices such as implantable neurostimulators. CDRH also oversees the safety performance of non-medical devices that emit certain types of electromagnetic radiation. Examples of CDRH-regulated devices include cellular phones, airport baggage screening equipment, television receivers, microwave ovens, tanning booths, and laser products. CDRH regulatory powers include the authority to require certain technical reports from the manufacturers or importers of regulated products, to require that radiation-emitting products meet mandatory safety performance standards, to declare regulated products defective, and to order the recall of defective or noncompliant products. CDRH also conducts limited amounts of direct product testing. "FDA-Cleared" vs "FDA-Approved" Clearance requests are required for medical devices that prove they are "substantially equivalent" to the predicate devices already on the market. Approved requests are for items that are new or substantially different and need to demonstrate "safety and efficacy", for example they may be inspected for safety in case of new toxic hazards. Both aspects need to be proved or provided by the submitter to ensure proper procedures are followed. Cosmetics Cosmetics are regulated by the Center for Food Safety and Applied Nutrition, the same branch of the FDA that regulates food. Cosmetic products are not, in general, subject to premarket approval by the FDA unless they make "structure or function claims" that make them into drugs (see Cosmeceutical). However, all color additives must be specifically FDA approved before manufacturers can include them in cosmetic products sold in the U.S. The FDA regulates cosmetics labeling, and cosmetics that have not been safety tested must bear a warning to that effect. According to the industry advocacy group the American Council on Science and Health, though the cosmetic industry is predominantly responsible in ensuring the safety of its products, the FDA also has the power to intervene when necessary to protect the public but in general does not require
the extension. An extension field of the form is often said to result from the of S to K. In characteristic 0, every finite extension is a simple extension. This is the primitive element theorem, which does not hold true for fields of non-zero characteristic. If a simple extension is not finite, the field K(s) is isomorphic to the field of rational fractions in s over K. Caveats The notation L / K is purely formal and does not imply the formation of a quotient ring or quotient group or any other kind of division. Instead the slash expresses the word "over". In some literature the notation L:K is used. It is often desirable to talk about field extensions in situations where the small field is not actually contained in the larger one, but is naturally embedded. For this purpose, one abstractly defines a field extension as an injective ring homomorphism between two fields. Every non-zero ring homomorphism between fields is injective because fields do not possess nontrivial proper ideals, so field extensions are precisely the morphisms in the category of fields. Henceforth, we will suppress the injective homomorphism and assume that we are dealing with actual subfields. Examples The field of complex numbers is an extension field of the field of real numbers , and in turn is an extension field of the field of rational numbers . Clearly then, is also a field extension. We have because is a basis, so the extension is finite. This is a simple extension because (the cardinality of the continuum), so this extension is infinite. The field is an extension field of also clearly a simple extension. The degree is 2 because can serve as a basis. The field is an extension field of both and of degree 2 and 4 respectively. It is also a simple extension, as one can show that Finite extensions of are also called algebraic number fields and are important in number theory. Another extension field of the rationals, which is also important in number theory, although not a finite extension, is the field of p-adic numbers for a prime number p. It is common to construct an extension field of a given field K as a quotient ring of the polynomial ring K[X] in order to "create" a root for a given polynomial f(X). Suppose for instance that K does not contain any element x with x2 = −1. Then the polynomial is irreducible in K[X], consequently the ideal generated by this polynomial is maximal, and is an extension field of K which does contain an element whose square is −1 (namely the residue class of X). By iterating the above construction, one can construct a splitting field of any polynomial from K[X]. This is an extension field L of K in which the given polynomial splits into a product of linear factors. If p is any prime number and n is a positive integer, we have a finite field GF(pn) with pn elements; this is an extension field of the finite field with p elements. Given a field K, we can consider the field K(X) of all rational functions in the variable X with coefficients in K; the elements of K(X) are fractions of two polynomials over K, and indeed K(X) is the field of fractions of the polynomial ring K[X]. This field of rational functions is an extension field of K. This extension is infinite. Given a Riemann surface M, the set of all meromorphic functions defined on M is a field, denoted by It is a transcendental extension field of if we identify every complex number with the corresponding constant function defined on M. More generally, given an algebraic variety V over some field K, then the function field of V, consisting of the rational functions defined on V and denoted by K(V), is an extension field of K. Algebraic extension An element x of a field extension is algebraic over K if it is a root of a nonzero polynomial with coefficients in K. For example, is algebraic over the rational numbers, because it is a root of If an element x of L is algebraic over K, the monic polynomial of lowest degree that has x as a root is called the minimal polynomial of x. This minimal polynomial is irreducible over K. An element s of L is algebraic over K if and only if the simple extension is a finite extension. In this case the degree of the extension equals the degree of the minimal polynomial, and a basis
and this pair of fields is a field extension. Such a field extension is denoted L / K (read as "L over K"). If L is an extension of F, which is in turn an extension of K, then F is said to be an intermediate field (or intermediate extension or subextension) of L / K. Given a field extension , the larger field L is a K-vector space. The dimension of this vector space is called the degree of the extension and is denoted by [L : K]. The degree of an extension is 1 if and only if the two fields are equal. In this case, the extension is a trivial extension. Extensions of degree 2 and 3 are called quadratic extensions and cubic extensions, respectively. A finite extension is an extension that has a finite degree. Given two extensions and , the extension is finite if and only if both and are finite. In this case, one has Given a field extension L / K and a subset S of L, there is a smallest subfield of L that contains K and S. It is the intersection of all subfields of L that contain K and S, and is denoted by K(S). One says that K(S) is the field generated by S over K, and that S is a generating set of K(S) over K. When is finite, one writes instead of and one says that K(S) is over K. If S consists of a single element s, the extension is called a simple extension and s is called a primitive element of the extension. An extension field of the form is often said to result from the of S to K. In characteristic 0, every finite extension is a simple extension. This is the primitive element theorem, which does not hold true for fields of non-zero characteristic. If a simple extension is not finite, the field K(s) is isomorphic to the field of rational fractions in s over K. Caveats The notation L / K is purely formal and does not imply the formation of a quotient ring or quotient group or any other kind of division. Instead the slash expresses the word "over". In some literature the notation L:K is used. It is often desirable to talk about field extensions in situations where the small field is not actually contained in the larger one, but is naturally embedded. For this purpose, one abstractly defines a field extension as an injective ring homomorphism between two fields. Every non-zero ring homomorphism between fields is injective because fields do not possess nontrivial proper ideals, so field extensions are precisely the morphisms in the category of fields. Henceforth, we will suppress the injective homomorphism and assume that we are dealing with actual subfields. Examples The field of complex numbers is an extension field of the field of real numbers , and in turn is an extension field of the field of rational numbers . Clearly then, is also a field extension. We have because is a basis, so the extension is finite. This is a simple extension because (the cardinality of the continuum), so this extension is infinite. The field is an extension field of also clearly a simple extension. The degree is 2 because can serve as a basis. The field is an extension field of both and of degree 2 and 4 respectively. It is also a simple extension, as one can show that Finite extensions of are also called algebraic number fields and are important in number theory. Another extension field of the rationals, which is also important in number theory, although not a finite extension, is the field of p-adic numbers for a prime number p. It is common to construct an extension field of a given field K as a quotient ring of the polynomial ring K[X] in order to "create" a root for a given polynomial f(X). Suppose for instance that K does not contain any element x with x2 = −1. Then the
Over time, the following optimizations were realized: When a new scan would be entirely within a grandparent span, it would certainly only find filled pixels, and so wouldn't need queueing. Further, when a new scan overlaps a grandparent span, only the overhangs (U-turns and W-turns) need to be scanned. It's possible to fill while scanning for seeds The final, combined-scan-and-fill span filler was then published in 1990. In pseudo-code form: fn fill(x, y): if not Inside(x, y) then return let s = new empty queue or stack Add (x, x, y, 1) to s Add (x, x, y - 1, -1) to s while s is not empty: Remove an (x1, x2, y, dy) from s let x = x1 if Inside(x, y): while Inside(x - 1, y): Set(x - 1, y) x = x - 1 if x < x1: Add (x, x1-1, y-dy, -dy) to s while x1 <= x2: while Inside(x1, y): Set(x1, y) x1 = x1 + 1 Add (x, x1 - 1, y+dy, dy) to s if x1 - 1 > x2: Add (x2 + 1, x1 - 1, y-dy, -dy) x1 = x1 + 1 while x1 < x2 and not Inside(x1, y): x1 = x1 + 1 x = x1 Advantages 2x-8x faster than the pixel-recursive algorithm. Access pattern is cache and bitplane-friendly. Can draw a horizontal line rather than setting individual pixels. Disadvantages Still visits pixels it has already filled. (For the popular algorithm, 3 scans of most pixels. For the final one, only doing extra scans of pixels where there are holes in the filled area.) Not suitable for pattern filling, as it requires pixel test results to change. Adding Pattern Filling Support Two common ways to make the span and pixel-based algorithms support pattern filling are either to use a unique color as a plain fill and then replace that with a pattern or to keep track (in a 2d boolean array or as regions) of which pixels have been visited, using it to indicate pixels are no longer fillable. Inside must then return false for such visited pixels. Graph-theoretic Filling Some theorists applied explicit graph theory to the problem, treating spans of pixels, or aggregates of such, as nodes and studying their connectivity. The first published graph theory algorithm worked similarly to the span filling, above, but had a way to detect when it would duplicate filling of spans. Unfortunately, it had bugs that made it not complete some fills. A corrected algorithm was later published with a similar basis in graph theory; however, it alters the image as it goes along, to temporarily block off potential loops, complicating the programmatic interface. A later published algorithm depended on the boundary being distinct from everything else in the image and so isn't suitable for most uses; it also requires an extra bit per pixel for bookkeeping. Advantages Suitable for pattern filling, directly, as it never retests filled pixels. Double the speed of the original span algorithm, for uncomplicated fills. Access pattern is cache and bitplane-friendly. Disadvantages Regularly, a span has to be compared to every other 'front' in the queue, which significantly slows down complicated fills. Switching back and forth between graph theoretic and pixel domains complicates understanding. The code is fairly complicated, increasing the chances of bugs. Walk-based filling (Fixed-memory method) A method exists that uses essentially no memory for four-connected regions by pretending to be a painter trying to paint the region without painting themselves into a corner. This is also a method for solving mazes. The four pixels making the primary boundary are examined to see what action should be taken. The painter could find themselves in one of several conditions: All four boundary pixels are filled. Three of the boundary pixels are filled. Two of the boundary pixels are filled. One boundary pixel is filled. Zero boundary pixels are filled. Where a path or boundary is to be followed, the right-hand rule is used. The painter follows the region by placing their right-hand on the wall (the boundary of the region) and progressing around the edge of the region without removing their hand. For case #1, the painter paints (fills) the pixel the painter is standing upon and stops the algorithm. For case #2, a path leading out of the area exists. Paint the pixel the painter is standing upon and move in the direction of the open path. For case #3, the two boundary pixels define a path which, if we painted the current pixel, may block us from ever getting back to the other side of the path. We need a "mark" to define where we are and which direction we are heading to see if we ever get back to exactly the same pixel. If we already created such a "mark", then we preserve our previous mark and move to the next pixel following the right-hand rule. A mark is used for the first 2-pixel boundary that is encountered
to make bug-free. Disadvantages Uses a lot of memory, particularly when using a stack. Tests most filled pixels a total of four times. Not suitable for pattern filling, as it requires pixel test results to change. Access pattern is not cache-friendly, for the queuing variant. Cannot easily optimize for multi-pixel words or bitplanes. Span Filling It's possible to optimize things further by working primarily with spans. The first published complete example works on the following basic principle. Starting with a seed point, you fill left and right and keep track of the edges. Then, you scan the same portion of the line above and the line below, searching for new seed-points to continue with. This algorithm is the most popular, for both citations and implementations , despite testing most filled pixels three times in total. In pseudo-code form: fn fill(x, y): if not Inside(x, y) then return let s = new empty stack or queue add (x, y) to s while s is not empty: Remove an (x, y) from s let lx = x while Inside(lx - 1, y): Set(lx - 1, y) lx = lx - 1 while Inside(x, y): Set(x, y) x = x + 1 scan(lx, x - 1, y + 1, s) scan(lx, x - 1, y - 1, s) fn scan(lx, rx, y, s): let added = false for x in lx .. rx: if not Inside(x, y): added = false else if not added: Add (x, y) to s added = true Over time, the following optimizations were realized: When a new scan would be entirely within a grandparent span, it would certainly only find filled pixels, and so wouldn't need queueing. Further, when a new scan overlaps a grandparent span, only the overhangs (U-turns and W-turns) need to be scanned. It's possible to fill while scanning for seeds The final, combined-scan-and-fill span filler was then published in 1990. In pseudo-code form: fn fill(x, y): if not Inside(x, y) then return let s = new empty queue or stack Add (x, x, y, 1) to s Add (x, x, y - 1, -1) to s while s is not empty: Remove an (x1, x2, y, dy) from s let x = x1 if Inside(x, y): while Inside(x - 1, y): Set(x - 1, y) x = x - 1 if x < x1: Add (x, x1-1, y-dy, -dy) to s while x1 <= x2: while Inside(x1, y): Set(x1, y) x1 = x1 + 1 Add (x, x1 - 1, y+dy, dy) to s if x1 - 1 > x2: Add (x2 + 1, x1 - 1, y-dy, -dy) x1 = x1 + 1 while x1 < x2 and not Inside(x1, y): x1 = x1 + 1 x = x1 Advantages 2x-8x faster than the pixel-recursive algorithm. Access pattern is cache and bitplane-friendly. Can draw a horizontal line rather than setting individual pixels. Disadvantages Still visits pixels it has already filled. (For the popular algorithm, 3 scans of most pixels. For the final one, only doing extra scans of pixels where there are holes in the filled area.) Not suitable for pattern filling, as it requires pixel test results to change. Adding Pattern Filling Support Two common ways to make the span and pixel-based algorithms support pattern filling are either to use a unique color as a plain fill and then replace that with a pattern or to keep track (in a 2d boolean array or as regions) of which pixels have been visited, using it to indicate pixels are no longer fillable. Inside must then return false for such visited pixels. Graph-theoretic Filling Some theorists applied explicit graph theory to the problem, treating spans of pixels, or aggregates of such, as nodes and studying their connectivity. The first published graph theory algorithm worked similarly to the span filling, above, but had a way to detect when it would duplicate filling of spans. Unfortunately, it had bugs that made it not complete some fills. A corrected algorithm was later published with a similar basis in
the Secular Franciscan Order – grew beyond Italy. Travels Determined to bring the Gospel to all peoples and let God convert them, Francis sought on several occasions to take his message out of Italy. In the late spring of 1212, he set out for Jerusalem, but was shipwrecked by a storm on the Dalmatian coast, forcing him to return to Italy. On 8 May 1213, he was given the use of the mountain of La Verna (Alverna) as a gift from Count Orlando di Chiusi, who described it as “eminently suitable for whoever wishes to do penance in a place remote from mankind”. The mountain would become one of his favourite retreats for prayer. In the same year, Francis sailed for Morocco, but an illness forced him to break off his journey while in Spain. In 1219, accompanied by Friar Illuminatus of Arce and hoping to convert the Sultan of Egypt or be martyred in the attempt, Francis went to Egypt during the Fifth Crusade where a Crusader army had been encamped for over a year besieging the walled city of Damietta. The Sultan, al-Kamil, a nephew of Saladin, had succeeded his father as Sultan of Egypt in 1218 and was encamped upstream of Damietta. A bloody and futile attack on the city was launched by the Christians on 29 August 1219, following which both sides agreed to a ceasefire which lasted four weeks. It was most probably during this interlude that Francis and his companion crossed the Muslims' lines and were brought before the Sultan, remaining in his camp for a few days. Reports give no information about what transpired during the encounter beyond noting that the Sultan received Francis graciously and that Francis preached to the Muslims. He returned unharmed. No known Arab sources mention the visit. Such an incident is alluded to in a scene in the late 13th-century fresco cycle, attributed to Giotto, in the upper basilica at Assisi. According to some late sources, the Sultan gave Francis permission to visit the sacred places in the Holy Land and even to preach there. All that can safely be asserted is that Francis and his companion left the Crusader camp for Acre, from where they embarked for Italy in the latter half of 1220. Drawing on a 1267 sermon by Bonaventure, later sources report that the Sultan secretly converted or accepted a death-bed baptism as a result of meeting Francis. Due to these events in Jerusalem, Franciscans have been present in the Holy Land almost uninterruptedly since 1217. They received concessions from the Mameluke Sultan in 1333 with regard to certain Holy Places in Jerusalem and Bethlehem, and (so far as concerns the Catholic Church) jurisdictional privileges from Pope Clement VI in 1342. Reorganization of the Franciscan Order The growing order of friars was divided into provinces; groups were sent to France, Germany, Hungary, and Spain and to the East. Upon receiving a report of the martyrdom of five brothers in Morocco, Francis returned to Italy via Venice. Cardinal Ugolino di Conti was then nominated by the pope as the protector of the order. Another reason for Francis' return to Italy was that the Franciscan Order had grown at an unprecedented rate compared to previous religious orders, but its organizational sophistication had not kept up with this growth and had little more to govern it than Francis' example and simple rule. To address this problem, Francis prepared a new and more detailed Rule, the "First Rule" or "Rule Without a Papal Bull" (Regula prima, Regula non bullata), which again asserted devotion to poverty and the apostolic life. However, it also introduced greater institutional structure, though this was never officially endorsed by the pope. On 29 September 1220, Francis handed over the governance of the order to Brother Peter Catani at the Porziuncola, but Peter died only five months later. Brother Peter was succeeded by Brother Elias as Vicar of Francis. Two years later, Francis modified the "First Rule", creating the "Second Rule" or "Rule With a Bull", which was approved by Pope Honorius III on 29 November 1223. As the order's official rule, it called on the friars "to observe the Holy Gospel of our Lord Jesus Christ, living in obedience without anything of our own and in chastity". In addition, it set regulations for discipline, preaching, and entering the order. Once the rule was endorsed by the pope, Francis withdrew increasingly from external affairs. During 1221 and 1222, he crossed Italy, first as far south as Catania in Sicily and afterward as far north as Bologna. Stigmata, final days, and sainthood While he was praying on the mountain of Verna, during a forty-day fast in preparation for Michaelmas (29 September), Francis is said to have had a vision on or about 13 September 1224, the Feast of the Exaltation of the Cross, as a result of which he received the stigmata. Brother Leo, who had been with Francis at the time, left a clear and simple account of the event, the first definite account of the phenomenon of stigmata. "Suddenly he saw a vision of a seraph, a six-winged angel on a cross. This angel gave him the gift of the five wounds of Christ." Suffering from these stigmata and from trachoma, Francis received care in several cities (Siena, Cortona, Nocera) to no avail. In the end, he was brought back to a hut next to the Porziuncola. Here he spent his last days dictating his spiritual testament. He died on the evening of Saturday, 3 October 1226, singing Psalm 141, "Voce mea ad Dominum". On 16 July 1228, he was declared a saint by Pope Gregory IX (the former cardinal Ugolino di Conti, a friend of Francis and Cardinal Protector of the Order). The next day, the pope laid the foundation stone for the Basilica of St. Francis in Assisi. Francis was buried on 25 May 1230, under the Lower Basilica, but his tomb was soon hidden on orders of Brother Elias, in order to protect it from Saracen invaders. His burial place remained unknown until it was rediscovered in 1818. Pasquale Belli then constructed for the remains a crypt in the Lower Basilica. It was refashioned between 1927 and 1930 into its present form by Ugo Tarchi. In 1978, the remains of Francis were examined and confirmed by a commission of scholars appointed by Pope Paul VI, and put into a glass urn in the ancient stone tomb. Character and legacy Francis set out to imitate Christ and literally carry out his work. This is important in understanding Francis' character, his affinity for the Eucharist and respect for the priests who carried out the sacrament. He preached: "Your God is of your flesh, He lives in your nearest neighbor, in every man." He and his followers celebrated and even venerated poverty, which was so central to his character that in his last written work, the Testament, he said that absolute personal and corporate poverty was the essential lifestyle for the members of his order. He believed that nature itself was the mirror of God. He called all creatures his "brothers" and "sisters", and even preached to the birds and supposedly persuaded a wolf in Gubbio to stop attacking some locals if they agreed to feed the wolf. His deep sense of brotherhood under God embraced others, and he declared that "he considered himself no friend of Christ if he did not cherish those for whom Christ died". Francis' visit to Egypt and attempted rapprochement with the Muslim world had far-reaching consequences, long past his own death, since after the fall of the Crusader Kingdom, it would be the Franciscans, of all Catholics, who would be allowed to stay on in the Holy Land and be recognized as "Custodians of the Holy Land" on behalf of the Catholic Church. At Greccio near Assisi, around 1220, Francis celebrated Christmas by setting up the first known presepio or crèche (Nativity scene). His nativity imagery reflected the scene in traditional paintings. He used real animals to create a living scene so that the worshipers could contemplate the birth of the child Jesus in a direct way, making use of the senses, especially sight. Both Thomas of Celano and Bonaventure, biographers of Francis, tell how he used only a straw-filled manger (feeding trough) set between a real ox and donkey. According to Thomas, it was beautiful in its simplicity, with the manger acting as the altar for the Christmas Mass. Nature and the environment Francis preached the Christian doctrine that the world was created good and beautiful by God but suffers a need for redemption because of human sin. As someone who saw God reflected in nature, "St. Francis was a great lover of God's creation ..." In the Canticle of the Sun he gives God thanks for Brother Sun, Sister Moon, Brother Wind, Water, Fire, and Earth, all of which he sees as rendering praise to God. Many of the stories that surround the life of Francis say that he had a great love for animals and the environment. The "Fioretti" ("Little Flowers"), is a collection of legends and folklore that sprang up after his death. One account describes how one day, while Francis was travelling with some companions, they happened upon a place in the road where birds filled the trees on either side. Francis told his companions to "wait for me while I go to preach to my sisters the birds." The birds surrounded him, intrigued by the power of his voice, and not one of them flew away. He is often portrayed with a bird, typically in his hand. Another legend from the Fioretti tells that in the city of Gubbio, where Francis lived for some time, was a wolf "terrifying and ferocious, who devoured men as well as animals". Francis went up into the hills and when he found the wolf, he made the sign of the cross and commanded the wolf to come to him and hurt no one. Then Francis led the wolf into the town, and surrounded by startled citizens made a pact between them and the wolf. Because the wolf had “done evil out of hunger, the townsfolk were to feed the wolf regularly. In return, the wolf would no longer prey upon them or their flocks. In this manner Gubbio was freed from the menace of the predator. On 29 November 1979, Pope John Paul II
couple of months, Francis wandered as a beggar in the hills behind Assisi. He spent some time at a neighbouring monastery working as a scullion. He then went to Gubbio, where a friend gave him, as an alms, the cloak, girdle, and staff of a pilgrim. Returning to Assisi, he traversed the city begging stones for the restoration of St. Damiano's. These he carried to the old chapel, set in place himself, and so at length rebuilt it. Over the course of two years, he embraced the life of a penitent, during which he restored several ruined chapels in the countryside around Assisi, among them San Pietro in Spina (in the area of San Petrignano in the valley about a kilometer from Rivotorto, today on private property and once again in ruin); and the Porziuncola, the little chapel of St. Mary of the Angels in the plain just below the town. This later became his favorite abode. By degrees he took to nursing lepers, in the lazar houses near Assisi. Founding of the Franciscan Orders The Friars Minor One morning in February 1208, Francis was taking part in a Mass in the chapel of St. Mary of the Angels, near which he had by then built himself a hut. The Gospel of the day was the "Commissioning of the Twelve" from the Book of Matthew. The disciples were to go and proclaim that the Kingdom of God is at hand. Francis was inspired to devote himself to a life of poverty. Having obtained a coarse woolen tunic, the dress then worn by the poorest Umbrian peasants, he tied it around himself with a knotted rope and went about exhorting the people of the countryside to penance, brotherly love, and peace. Francis's preaching to ordinary people was unusual as he had no license to do so. His example attracted others. Within a year Francis had eleven followers. The brothers lived a simple life in the deserted lazar house of Rivo Torto near Assisi; but they spent much of their time wandering through the mountainous districts of Umbria, making a deep impression upon their hearers by their earnest exhortations. In 1209 he composed a simple rule for his followers ("friars"), the Regula primitiva or "Primitive Rule", which came from verses in the Bible. The rule was "to follow the teachings of our Lord Jesus Christ and to walk in his footsteps." He then led eleven followers to Rome to seek permission from Pope Innocent III to found a new religious order. Upon entry to Rome, the brothers encountered Bishop Guido of Assisi, who had in his company Giovanni di San Paolo, the Cardinal Bishop of Sabina. The Cardinal, who was the confessor of Pope Innocent III, was immediately sympathetic to Francis and agreed to represent Francis to the pope. After several days, the pope agreed to admit the group informally, adding that when God increased the group in grace and number, they could return for an official audience. The group was tonsured. This was important in part because it recognized Church authority and prevented his following from accusations of heresy, as had happened to the Waldensians decades earlier. Though a number of the pope's counselors considered the mode of life proposed by Francis to be unsafe and impractical, following a dream in which he saw Francis holding up the Lateran Basilica, he decided to endorse Francis's order. This occurred, according to tradition, on 16 April 1210, and constituted the official founding of the Franciscan Order. The group, then the "Lesser Brothers" (Order of Friars Minor also known as the Franciscan Order or the Seraphic Order), were centered in the Porziuncola and preached first in Umbria, before expanding throughout Italy. Francis was later ordained a deacon, but not a priest. The Poor Clares and the Third Order From then on, the new order grew quickly. Hearing Francis preaching in the church of San Rufino in Assisi in 1211, the young noblewoman Clare of Assisi sought to live like them. Her cousin Rufino also sought to join. On the night of Palm Sunday, 28 March 1212, Clare clandestinely left her family's palace. Francis received her at the Porziuncola and thereby established the Order of Poor Clares. He gave Clare a religious habit, a garment similar to his own, before lodging her, her younger sister Caterina, and other young women in a nearby monastery of Benedictine nuns until he could provide a suitable monastery. Later he transferred them to San Damiano, to a few small huts or cells. This became the first monastery of the Second Franciscan Order, now known as Poor Clares. For those who could not leave their homes, Francis later formed the Third Order of Brothers and Sisters of Penance, a fraternity composed of either laity or clergy whose members neither withdrew from the world nor took religious vows. Instead, they observed the principles of Franciscan life in their daily lives. Before long, the Third Order – now titled the Secular Franciscan Order – grew beyond Italy. Travels Determined to bring the Gospel to all peoples and let God convert them, Francis sought on several occasions to take his message out of Italy. In the late spring of 1212, he set out for Jerusalem, but was shipwrecked by a storm on the Dalmatian coast, forcing him to return to Italy. On 8 May 1213, he was given the use of the mountain of La Verna (Alverna) as a gift from Count Orlando di Chiusi, who described it as “eminently suitable for whoever wishes to do penance in a place remote from mankind”. The mountain would become one of his favourite retreats for prayer. In the same year, Francis sailed for Morocco, but an illness forced him to break off his journey while in Spain. In 1219, accompanied by Friar Illuminatus of Arce and hoping to convert the Sultan of Egypt or be martyred in the attempt, Francis went to Egypt during the Fifth Crusade where a Crusader army had been encamped for over a year besieging the walled city of Damietta. The Sultan, al-Kamil, a nephew of Saladin, had succeeded his father as Sultan of Egypt in 1218 and was encamped upstream of Damietta. A bloody and futile attack on the city was launched by the Christians on 29 August 1219, following which both sides agreed to a ceasefire which lasted four weeks. It was most probably during this interlude that Francis and his companion crossed the Muslims' lines and were brought before the Sultan, remaining in his camp for a few days. Reports give no information about what transpired during the encounter beyond noting that the Sultan received Francis graciously and that Francis preached to the Muslims. He returned unharmed. No known Arab sources mention the visit. Such an incident is alluded to in a scene in the late 13th-century fresco cycle, attributed to Giotto, in the upper basilica at Assisi. According to some late sources, the Sultan gave Francis permission to visit the sacred places in the Holy Land and even to preach there. All that can safely be asserted is that Francis and his companion left the Crusader camp for Acre, from where they embarked for Italy in the latter half of 1220. Drawing on a 1267 sermon by Bonaventure, later sources report that the Sultan secretly converted or accepted a death-bed baptism as a result of meeting Francis. Due to these events in Jerusalem, Franciscans have been present in the Holy Land almost uninterruptedly since 1217. They received concessions from the Mameluke Sultan in 1333 with regard to certain Holy Places in Jerusalem and Bethlehem, and (so far as concerns the Catholic Church) jurisdictional privileges from Pope Clement VI in 1342. Reorganization of the Franciscan Order The growing order of friars was divided into provinces; groups were sent to France, Germany, Hungary, and Spain and to the East. Upon receiving a report of the martyrdom of five brothers in Morocco, Francis returned to Italy via Venice. Cardinal Ugolino di Conti was then nominated by the pope as the protector of the order. Another reason for Francis' return to Italy was that the Franciscan Order had grown at an unprecedented rate compared to previous religious orders, but its organizational sophistication had not kept up with this growth and had little more to govern it than Francis' example and simple rule. To address this problem, Francis prepared a new and more detailed Rule, the "First Rule" or "Rule Without a Papal Bull" (Regula prima, Regula non bullata), which again asserted devotion to poverty and the apostolic life. However, it also introduced greater institutional structure, though this was never officially endorsed by the pope. On 29 September 1220, Francis handed over the governance of the order to Brother Peter Catani at the Porziuncola, but Peter died only five months later. Brother Peter was succeeded by Brother Elias as Vicar of Francis. Two years later, Francis modified the "First Rule", creating the "Second Rule" or "Rule With a Bull", which was approved by Pope Honorius III on 29 November 1223. As the order's official rule, it called on the friars "to observe the Holy Gospel of our Lord Jesus Christ, living in obedience without anything of our own and in chastity". In addition, it set regulations for discipline, preaching, and entering the order. Once the rule was endorsed by the pope, Francis withdrew increasingly from external affairs. During 1221 and 1222, he crossed Italy, first as far south as Catania in Sicily and afterward as far north as Bologna. Stigmata, final days, and sainthood While he was praying on the mountain of Verna, during a forty-day fast in preparation for Michaelmas (29 September), Francis is said to have had a vision on or about 13 September 1224, the Feast of the Exaltation of the Cross, as a result of which he received the stigmata. Brother Leo, who had been with Francis at the time, left a clear and simple account of the event, the first definite account of the phenomenon of stigmata. "Suddenly he saw a vision of a seraph, a six-winged angel on a cross. This angel gave him the gift of the five wounds of Christ." Suffering from these stigmata and from trachoma, Francis received care in several cities (Siena, Cortona, Nocera) to no avail. In the end, he was brought back to a hut next to the Porziuncola. Here he spent his last days dictating his spiritual testament. He died on the evening of Saturday, 3 October 1226, singing Psalm 141, "Voce mea ad Dominum". On 16 July 1228, he was declared a saint by Pope Gregory IX (the former cardinal Ugolino di Conti, a friend of Francis and Cardinal Protector of the Order). The next day, the pope laid the foundation stone for the Basilica of St. Francis in Assisi. Francis was buried on 25 May 1230, under the Lower Basilica, but his tomb was soon hidden on orders of Brother Elias, in order to protect it from Saracen invaders. His burial place remained unknown until it was rediscovered in 1818. Pasquale Belli then constructed for the remains a crypt in the Lower Basilica. It was refashioned between 1927 and 1930 into its present form by Ugo Tarchi. In 1978, the remains of Francis were examined and confirmed by a commission of scholars appointed by Pope Paul VI, and put into a glass urn in the ancient stone tomb. Character and legacy Francis set out to imitate Christ and literally carry out his work. This is important in understanding Francis' character, his affinity for the Eucharist and respect for the priests who carried out the sacrament. He preached: "Your God is of your flesh, He lives in your nearest neighbor, in every man." He and his followers celebrated and even venerated poverty, which was so central to his character that in his last written work, the Testament, he said that absolute personal and corporate poverty was the essential lifestyle for the members of his order. He believed that nature itself was the mirror of God. He called all creatures his "brothers" and "sisters", and even preached to the birds and supposedly persuaded a wolf in Gubbio to stop attacking some locals if they agreed to feed the wolf. His deep sense of brotherhood under God embraced others, and he declared that "he considered himself no friend of Christ if he did not cherish those for whom Christ died". Francis' visit to Egypt and attempted rapprochement with the Muslim world had far-reaching consequences, long
the U.S. Air Force Thunderbirds aerial demonstration team, and as an adversary/aggressor aircraft by the United States Navy. The F-16 has also been procured to serve in the air forces of 25 other nations. As of 2015, it was the world's most numerous fixed-wing aircraft in military service. Development Lightweight Fighter program Experiences in the Vietnam War revealed the need for air superiority fighters and better air-to-air training for fighter pilots. Based on his experiences in the Korean War and as a fighter tactics instructor in the early 1960s, Colonel John Boyd with mathematician Thomas Christie developed the energy–maneuverability theory to model a fighter aircraft's performance in combat. Boyd's work called for a small, lightweight aircraft that could maneuver with the minimum possible energy loss and which also incorporated an increased thrust-to-weight ratio. In the late 1960s, Boyd gathered a group of like-minded innovators who became known as the Fighter Mafia, and in 1969, they secured Department of Defense funding for General Dynamics and Northrop to study design concepts based on the theory. Air Force F-X proponents remained hostile to the concept because they perceived it as a threat to the F-15 program, but the USAF's leadership understood that its budget would not allow it to purchase enough F-15 aircraft to satisfy all of its missions. The Advanced Day Fighter concept, renamed F-XX, gained civilian political support under the reform-minded Deputy Secretary of Defense David Packard, who favored the idea of competitive prototyping. As a result, in May 1971, the Air Force Prototype Study Group was established, with Boyd a key member, and two of its six proposals would be funded, one being the Lightweight Fighter (LWF). The request for proposals issued on 6 January 1972 called for a class air-to-air day fighter with a good turn rate, acceleration, and range, and optimized for combat at speeds of Mach 0.6–1.6 and altitudes of . This was the region where USAF studies predicted most future air combat would occur. The anticipated average flyaway cost of a production version was $3 million. This production plan, though, was only notional, as the USAF had no firm plans to procure the winner. Selection of finalists and flyoff Five companies responded, and in 1972, the Air Staff selected General Dynamics' Model 401 and Northrop's P-600 for the follow-on prototype development and testing phase. GD and Northrop were awarded contracts worth $37.9 million and $39.8 million to produce the YF-16 and YF-17, respectively, with the first flights of both prototypes planned for early 1974. To overcome resistance in the Air Force hierarchy, the Fighter Mafia and other LWF proponents successfully advocated the idea of complementary fighters in a high-cost/low-cost force mix. The "high/low mix" would allow the USAF to be able to afford sufficient fighters for its overall fighter force structure requirements. The mix gained broad acceptance by the time of the prototypes' flyoff, defining the relationship of the LWF and the F-15. The YF-16 was developed by a team of General Dynamics engineers led by Robert H. Widmer. The first YF-16 was rolled out on 13 December 1973. Its 90-minute maiden flight was made at the Air Force Flight Test Center at Edwards AFB, California, on 2 February 1974. Its actual first flight occurred accidentally during a high-speed taxi test on 20 January 1974. While gathering speed, a roll-control oscillation caused a fin of the port-side wingtip-mounted missile and then the starboard stabilator to scrape the ground, and the aircraft then began to veer off the runway. The test pilot, Phil Oestricher, decided to lift off to avoid a potential crash, safely landing six minutes later. The slight damage was quickly repaired and the official first flight occurred on time. The YF-16's first supersonic flight was accomplished on 5 February 1974, and the second YF-16 prototype first flew on 9 May 1974. This was followed by the first flights of Northrop's YF-17 prototypes on 9 June and 21 August 1974, respectively. During the fly off, the YF-16s completed 330 sorties for a total of 417 flight hours; the YF-17s flew 288 sorties, covering 345 hours. Air Combat Fighter competition Increased interest turned the LWF into a serious acquisition program. North Atlantic Treaty Organization (NATO) allies Belgium, Denmark, the Netherlands, and Norway were seeking to replace their F-104G Starfighter fighter-bombers. In early 1974, they reached an agreement with the U.S. that if the USAF ordered the LWF winner, they would consider ordering it as well. The USAF also needed to replace its F-105 Thunderchief and F-4 Phantom II fighter-bombers. The U.S. Congress sought greater commonality in fighter procurements by the Air Force and Navy, and in August 1974 redirected Navy funds to a new Navy Air Combat Fighter program that would be a navalized fighter-bomber variant of the LWF. The four NATO allies had formed the Multinational Fighter Program Group (MFPG) and pressed for a U.S. decision by December 1974; thus, the USAF accelerated testing. To reflect this serious intent to procure a new fighter-bomber, the LWF program was rolled into a new Air Combat Fighter (ACF) competition in an announcement by U.S. Secretary of Defense James R. Schlesinger in April 1974. The ACF would not be a pure fighter, but multi-role, and Schlesinger made it clear that any ACF order would be in addition to the F-15, which extinguished opposition to the LWF. ACF also raised the stakes for GD and Northrop because it brought in competitors intent on securing what was touted at the time as "the arms deal of the century". These were Dassault-Breguet's proposed Mirage F1M-53, the Anglo-French SEPECAT Jaguar, and the proposed Saab 37E "Eurofighter". Northrop offered the P-530 Cobra, which was similar to the YF-17. The Jaguar and Cobra were dropped by the MFPG early on, leaving two European and the two U.S. candidates. On 11 September 1974, the U.S. Air Force confirmed plans to order the winning ACF design to equip five tactical fighter wings. Though computer modeling predicted a close contest, the YF-16 proved significantly quicker going from one maneuver to the next and was the unanimous choice of those pilots that flew both aircraft. On 13 January 1975, Secretary of the Air Force John L. McLucas announced the YF-16 as the winner of the ACF competition. The chief reasons given by the secretary were the YF-16's lower operating costs, greater range, and maneuver performance that was "significantly better" than that of the YF-17, especially at supersonic speeds. Another advantage of the YF-16 – unlike the YF-17 – was its use of the Pratt & Whitney F100 turbofan engine, the same powerplant used by the F-15; such commonality would lower the cost of engines for both programs. Secretary McLucas announced that the USAF planned to order at least 650, possibly up to 1,400 production F-16s. In the Navy Air Combat Fighter competition, on 2 May 1975 the Navy selected the YF-17 as the basis for what would become the McDonnell Douglas F/A-18 Hornet. Commencement of production The U.S. Air Force initially ordered 15 full-scale development (FSD) aircraft (11 single-seat and four two-seat models) for its flight test program, but was reduced to eight (six F-16A single-seaters and two F-16B two-seaters). The YF-16 design was altered for the production F-16. The fuselage was lengthened by , a larger nose radome was fitted for the AN/APG-66 radar, wing area was increased from to , the tailfin height was decreased, the ventral fins were enlarged, two more stores stations were added, and a single door replaced the original nosewheel double doors. The F-16's weight was increased by 25% over the YF-16 by these modifications. The FSD F-16s were manufactured by General Dynamics in Fort Worth, Texas at United States Air Force Plant 4 in late 1975; the first F-16A rolled out on 20 October 1976 and first flew on 8 December. The initial two-seat model achieved its first flight on 8 August 1977. The initial production-standard F-16A flew for the first time on 7 August 1978 and its delivery was accepted by the USAF on 6 January 1979. The F-16 was given its name of "Fighting Falcon" on 21 July 1980, entering USAF operational service with the 34th Tactical Fighter Squadron, 388th Tactical Fighter Wing at Hill AFB in Utah on 1 October 1980. On 7 June 1975, the four European partners, now known as the European Participation Group, signed up for 348 aircraft at the Paris Air Show. This was split among the European Participation Air Forces (EPAF) as 116 for Belgium, 58 for Denmark, 102 for the Netherlands, and 72 for Norway. Two European production lines, one in the Netherlands at Fokker's Schiphol-Oost facility and the other at SABCA's Gosselies plant in Belgium, would produce 184 and 164 units respectively. Norway's Kongsberg Vaapenfabrikk and Denmark's Terma A/S also manufactured parts and subassemblies for EPAF aircraft. European co-production was officially launched on 1 July 1977 at the Fokker factory. Beginning in November 1977, Fokker-produced components were sent to Fort Worth for fuselage assembly, then shipped back to Europe for final assembly of EPAF aircraft at the Belgian plant on 15 February 1978; deliveries to the Belgian Air Force began in January 1979. The first Royal Netherlands Air Force aircraft was delivered in June 1979. In 1980, the first aircraft were delivered to the Royal Norwegian Air Force by SABCA and to the Royal Danish Air Force by Fokker. During the late 1980s and 1990s, Turkish Aerospace Industries (TAI) produced 232 Block 30/40/50 F-16s on a production line in Ankara under license for the Turkish Air Force. TAI also produced 46 Block 40s for Egypt in the mid-1990s and 30 Block 50s from 2010. Korean Aerospace Industries opened a production line for the KF-16 program, producing 140 Block 52s from the mid-1990s to mid-2000s (decade). If India had selected the F-16IN for its Medium Multi-Role Combat Aircraft procurement, a sixth F-16 production line would have been built in India. In May 2013, Lockheed Martin stated there were currently enough orders to keep producing the F-16 until 2017. Improvements and upgrades One change made during production was augmented pitch control to avoid deep stall conditions at high angles of attack. The stall issue had been raised during development but had originally been discounted. Model tests of the YF-16 conducted by the Langley Research Center revealed a potential problem, but no other laboratory was able to duplicate it. YF-16 flight tests were not sufficient to expose the issue; later flight testing on the FSD aircraft demonstrated a real concern. In response, the area of each horizontal stabilizer was increased by 25% on the Block 15 aircraft in 1981 and later retrofitted to earlier aircraft. In addition, a manual override switch to disable the horizontal stabilizer flight limiter was prominently placed on the control console, allowing the pilot to regain control of the horizontal stabilizers (which the flight limiters otherwise lock in place) and recover. Besides reducing the risk of deep stalls, the larger horizontal tail also improved stability and permitted faster takeoff rotation. In the 1980s, the Multinational Staged Improvement Program (MSIP) was conducted to evolve the F-16's capabilities, mitigate risks during technology development, and ensure the aircraft's worth. The program upgraded the F-16 in three stages. The MSIP process permitted the quick introduction of new capabilities, at lower costs and with reduced risks compared to traditional independent upgrade programs. In 2012, the USAF had allocated $2.8 billion to upgrade 350 F-16s while waiting for the F-35 to enter service. One key upgrade has been an auto-GCAS (Ground collision avoidance system) to reduce instances of controlled flight into terrain. Onboard power and cooling capacities limit the scope of upgrades, which often involve the addition of more power-hungry avionics. Lockheed won many contracts to upgrade foreign operators' F-16s. BAE Systems also offers various F-16 upgrades, receiving orders from South Korea, Oman, Turkey, and the US Air National Guard; BAE lost the South Korean contract due to a price breach in November 2014. In 2012, the USAF assigned the total upgrade contract to Lockheed Martin. Upgrades include Raytheon's Center Display Unit, which replaces several analog flight instruments with a single digital display. In 2013, sequestration budget cuts cast doubt on the USAF's ability to complete the Combat Avionics Programmed Extension Suite (CAPES), a part of secondary programs such as Taiwan's F-16 upgrade. Air Combat Command's General Mike Hostage stated that if he only had money for a service life extension program (SLEP) or CAPES, he would fund SLEP to keep the aircraft flying. Lockheed Martin responded to talk of CAPES cancellation with a fixed-price upgrade package for foreign users. CAPES was not included in the Pentagon's 2015 budget request. The USAF said that the upgrade package will still be offered to Taiwan's Republic of China Air Force, and Lockheed said that some common elements with the F-35 will keep the radar's unit costs down. In 2014, the USAF issued a RFI to SLEP 300 F-16 C/Ds. Production relocation To make more room for assembly of its newer F-35 Lightning II fighter aircraft, Lockheed Martin moved the F-16 production from Fort Worth, Texas to its plant in Greenville, South Carolina. Lockheed delivered the last F-16 from Fort Worth to the Iraqi Air Force on 14 November 2017, ending 40 years of F-16 production there. The company is hoping to finish the Greenville move and restart production in 2019, though engineering and modernization work will remain in Fort Worth. A gap in orders made it possible to stop production during the move; after completing orders for the last Iraqi purchase, the company was negotiating an F-16 sale to Bahrain that would be produced in Greenville. This contract was signed in June 2018. Design Overview The F-16 is a single-engine, highly maneuverable, supersonic, multi-role tactical fighter aircraft. It is much smaller and lighter than its predecessors but uses advanced aerodynamics and avionics, including the first use of a relaxed static stability/fly-by-wire (RSS/FBW) flight control system, to achieve enhanced maneuver performance. Highly agile, the F-16 was the first fighter aircraft purpose-built to pull 9-g maneuvers and can reach a maximum speed of over Mach 2. Innovations include a frameless bubble canopy for better visibility, a side-mounted control stick, and a reclined seat to reduce g-force effects on the pilot. It is armed with an internal M61 Vulcan cannon in the left wing root and has multiple locations for mounting various missiles, bombs and pods. It has a thrust-to-weight ratio greater than one, providing power to climb and vertical acceleration. The F-16 was designed to be relatively inexpensive to build and simpler to maintain than earlier-generation fighters. The airframe is built with about 80% aviation-grade aluminum alloys, 8% steel, 3% composites, and 1.5% titanium. The leading-edge flaps, stabilators, and ventral fins make use of bonded aluminum honeycomb structures and graphite epoxy lamination coatings. The number of lubrication points, fuel line connections, and replaceable modules is significantly lower than preceding fighters; 80% of the access panels can be accessed without stands. The air intake was placed so it was rearward of the nose but forward enough to minimize air flow losses and reduce aerodynamic drag. Although the LWF program called for a structural life of 4,000 flight hours, capable of achieving 7.33 g with 80% internal fuel; GD's engineers decided to design the F-16's airframe life for 8,000 hours and for 9-g maneuvers on full internal fuel. This proved advantageous when the aircraft's mission changed from solely air-to-air combat to multi-role operations. Changes in operational use and additional systems have increased weight, necessitating multiple structural strengthening programs. General configuration The F-16 has a cropped-delta wing incorporating wing-fuselage blending and forebody vortex-control strakes; a fixed-geometry, underslung air intake (with splitter plate) to the single turbofan jet engine; a conventional tri-plane empennage arrangement with all-moving horizontal "stabilator" tailplanes; a pair of ventral fins beneath the fuselage aft of the wing's trailing edge; and a tricycle landing gear configuration with the aft-retracting, steerable nose gear deploying a short distance behind the inlet lip. There is a boom-style aerial refueling receptacle located behind the single-piece "bubble" canopy of the cockpit. Split-flap speedbrakes are located at the aft end of the wing-body fairing, and a tailhook is mounted underneath the fuselage. A fairing beneath the rudder often houses ECM equipment or a drag chute. Later F-16 models feature a long dorsal fairing along the fuselage's "spine", housing additional equipment or fuel. Aerodynamic studies in the 1960s demonstrated that the "vortex lift" phenomenon could be harnessed by highly swept wing configurations to reach higher angles of attack, using leading edge vortex flow off a slender lifting surface. As the F-16 was being optimized for high combat agility, GD's designers chose a slender cropped-delta wing with a leading-edge sweep of 40° and a straight trailing edge. To improve maneuverability, a variable-camber wing with a NACA 64A-204 airfoil was selected; the camber is adjusted by leading-edge and trailing edge flaperons linked to a digital flight control system regulating the flight envelope. The F-16 has a moderate wing loading, reduced by fuselage lift. The vortex lift effect is increased by leading-edge extensions, known as strakes. Strakes act as additional short-span, triangular wings running from the wing root (the junction with fuselage) to a point further forward on the fuselage. Blended into the fuselage and along the wing root, the strake generates a high-speed vortex that remains attached to the top of the wing as the angle of attack increases, generating additional lift and allowing greater angles of attack without stalling. Strakes allow a smaller, lower-aspect-ratio wing, which increases roll rates and directional stability while decreasing weight. Deeper wing roots also increase structural strength and internal fuel volume. Armament Early F-16s could be armed with up to six AIM-9 Sidewinder heat-seeking short-range air-to-air missiles (AAM) by employing rail launchers on each wingtip, as well as radar-guided AIM-7 Sparrow medium-range AAMs in a weapons mix. More recent versions support the AIM-120 AMRAAM, and US aircraft often mount that missile on their wingtips to reduce wing flutter. The aircraft can carry various other AAMs, a wide variety of air-to-ground missiles, rockets or bombs; electronic countermeasures (ECM), navigation, targeting or weapons pods; and fuel tanks on 9 hardpoints – six under the wings, two on wingtips, and one under the fuselage. Two other locations under the fuselage are available for sensor or radar pods. The F-16 carries a 20 mm (0.787 in) M61A1 Vulcan cannon, which is mounted inside the fuselage to the left of the cockpit. Negative stability and fly-by-wire The F-16 is the first production fighter aircraft intentionally designed to be slightly aerodynamically unstable, also known as relaxed static stability (RSS), to improve maneuverability. Most aircraft are designed with positive static stability, which induces aircraft to return to straight and level flight attitude if the pilot releases the controls; this reduces maneuverability as the inherent stability has to be overcome. Aircraft with negative stability are designed to deviate from controlled flight and are thus more maneuverable. At supersonic speeds the F-16 gains stability (eventually positive) due to aerodynamic changes. To counter the tendency to depart from controlled flight and avoid the need for constant trim inputs by the pilot, the F-16 has a quadruplex (four-channel) fly-by-wire (FBW) flight control system (FLCS). The flight control computer (FLCC) accepts pilot input from the stick and rudder controls and manipulates the control surfaces in such a way as to produce the desired result without inducing control loss. The FLCC conducts thousands of measurements per second on the aircraft's flight attitude to automatically counter deviations from the pilot-set flight path; leading to a common aphorism among pilots: "You don't fly an F-16; it flies you." The FLCC further incorporates limiters governing movement in the three main axes based on attitude, airspeed and angle of attack (AOA); these prevent control surfaces from inducing instability such as slips or skids, or a high AOA inducing a stall. The limiters also prevent maneuvers that would exert more than a 9 g load. Flight testing has revealed that "assaulting" multiple limiters at high AOA and low speed can result in an AOA far exceeding the 25° limit, colloquially referred to as "departing"; this causes a deep stall; a near-freefall at 50° to 60° AOA, either upright or inverted. While at a very high AOA, the aircraft's attitude is stable but control surfaces are ineffective. The pitch limiter locks the stabilators at an extreme pitch-up or pitch-down attempting to recover. This can be overridden so the pilot can "rock" the nose via pitch control to recover. Unlike the YF-17, which had hydromechanical controls serving as a backup to the FBW, General Dynamics took the innovative step of eliminating mechanical linkages from the control stick and rudder pedals to the flight control surfaces. The F-16 is entirely reliant on its electrical systems to relay flight commands, instead of traditional mechanically linked controls, leading to the early moniker of "the electric jet". The quadruplex design permits "graceful degradation" in flight control response in that the loss of one channel renders the FLCS a "triplex" system. The FLCC began as an analog system on the A/B variants but has been supplanted by a digital computer system beginning with the F-16C/D Block 40. The F-16's controls suffered from a sensitivity to static electricity or electrostatic discharge (ESD). Up to 70–80% of the C/D models' electronics were vulnerable to ESD. Cockpit and ergonomics A key feature of the F-16's cockpit is the exceptional field of view. The single-piece, bird-proof polycarbonate bubble canopy provides 360° all-round visibility, with a 40° look-down angle over the side of the aircraft, and 15° down over the nose (compared to the common 12–13° of preceding aircraft); the pilot's seat is elevated for this purpose. Furthermore, the F-16's canopy lacks the forward bow frame found on many fighters, which is an obstruction to a pilot's forward vision. The F-16's ACES II zero/zero ejection seat is reclined at an unusual tilt-back angle of 30°; most fighters have a tilted seat at 13–15°. The tilted seat can accommodate taller pilots and increases g-force tolerance; however, it has been associated with reports of neck ache, possibly caused by incorrect head-rest usage. Subsequent U.S. fighters have adopted more modest tilt-back angles of 20°. Due to the seat angle and the canopy's thickness, the ejection seat lacks canopy-breakers for emergency egress; instead the entire canopy is jettisoned prior to the seat's rocket firing. The pilot flies primarily by means of an armrest-mounted side-stick controller (instead of a traditional center-mounted stick) and an engine throttle; conventional rudder pedals are also employed. To enhance the pilot's degree of control of the aircraft during high-g combat maneuvers, various switches and function controls were moved to centralized hands on throttle-and-stick (HOTAS) controls upon both the controllers and the throttle. Hand pressure on the side-stick controller is transmitted by electrical signals via the FBW system to adjust various flight control surfaces to maneuver the F-16. Originally, the side-stick controller was non-moving, but this proved uncomfortable and difficult for pilots to adjust to, sometimes resulting in a tendency to "over-rotate" during takeoffs, so the control stick was given a small amount of "play". Since the introduction of the F-16, HOTAS controls have become a standard feature on modern fighters. The F-16 has a head-up display (HUD), which projects visual flight and combat information in front of the pilot without obstructing the view; being able to keep their head "out of the cockpit" improves the pilot's situation awareness.<ref>Task, H. L. "Optical Effects of F-16 Canopy-HUD (Head Up Display) Integration", (Accession No. ADP003222). 'Air Force Aerospace Medical Research Lab, December 1983.</ref> Further flight and systems information are displayed on multi-function displays (MFD). The left-hand MFD is the primary flight display (PFD), typically showing radar and moving-maps; the right-hand MFD is the system display (SD), presenting information about the engine, landing gear, slat and flap settings, and fuel and weapons status. Initially, the F-16A/B had monochrome cathode ray tube (CRT) displays; replaced by color liquid-crystal displays on the Block 50/52.Spick 2000, p. 222. The MLU introduced compatibility with night-vision goggles (NVG). The Boeing Joint Helmet Mounted Cueing System (JHMCS) is available from Block 40 onwards, for targeting based on where the pilot's head faces, unrestricted by the HUD, using high-off-boresight missiles like the AIM-9X. Fire-control radar The F-16A/B was originally equipped with the Westinghouse AN/APG-66 fire-control radar. Its slotted planar array antenna was designed to be compact to fit into the F-16's relatively small nose. In uplook mode, the APG-66 uses a low pulse-repetition frequency (PRF) for medium- and high-altitude target detection in a low-clutter environment, and in look-down/shoot-down employs a medium PRF for heavy clutter environments. It has four operating frequencies within the X band, and provides four air-to-air and seven air-to-ground operating modes for combat, even at night or in bad weather. The Block 15's APG-66(V)2 model added a more powerful signal processing, higher output power, improved reliability and increased range in cluttered or jamming environments. The Mid-Life Update (MLU) program introduced a new model, APG-66(V)2A, which features higher speed and more memory. The AN/APG-68, an evolution of the APG-66, was introduced with the F-16C/D Block 25. The APG-68 has greater range and resolution, as well as 25 operating modes, including ground-mapping, Doppler beam-sharpening, ground moving target indication, sea target, and track while scan (TWS) for up to 10 targets. The Block 40/42's APG-68(V)1 model added full compatibility with Lockheed Martin Low-Altitude Navigation and Targeting Infra-Red for Night (LANTIRN) pods, and a high-PRF pulse-Doppler track mode to provide Interrupted Continuous Wave guidance for semi-active radar-homing (SARH) missiles like the AIM-7 Sparrow. Block 50/52 F-16s initially used the more reliable APG-68(V)5 which has a programmable signal processor employing Very-High-Speed Integrated Circuit (VHSIC) technology. The Advanced Block 50/52 (or 50+/52+) are equipped with the APG-68(V)9 radar, with a 30% greater air-to-air detection range and a synthetic aperture radar (SAR) mode for high-resolution mapping and target detection-recognition. In August 2004, Northrop Grumman was contracted to upgrade the APG-68 radars of Block 40/42/50/52 aircraft to the (V)10 standard, providing all-weather autonomous detection and targeting for Global Positioning System (GPS)-aided precision weapons,
Increased Performance Engine (IPE) program led to the 29,588 lbf (131.6 kN) F110-GE-129 on the Block 50 and 29,160 lbf (129.4 kN) F100-PW-229 on the Block 52. F-16s began flying with these IPE engines in the early 1990s. Altogether, of the 1,446 F-16C/Ds ordered by the USAF, 556 were fitted with F100-series engines and 890 with F110s. The United Arab Emirates' Block 60 is powered by the General Electric F110-GE-132 turbofan with a maximum thrust of 32,500 lbf (144.6 kN), the highest thrust engine developed for the F-16.Pike, John. "F110." Global Security, updated 15 March 2006. Retrieved 21 June 2008. Operational history F-16s have participated in numerous conflicts, most of them in the Middle East. United States The F-16 is being used by the active duty USAF, Air Force Reserve, and Air National Guard units, the USAF aerial demonstration team, the U.S. Air Force Thunderbirds, and as an adversary-aggressor aircraft by the United States Navy at the Naval Strike and Air Warfare Center. The U.S. Air Force, including the Air Force Reserve and the Air National Guard, flew the F-16 in combat during Operation Desert Storm in 1991 and in the Balkans later in the 1990s. F-16s also patrolled the no-fly zones in Iraq during Operations Northern Watch and Southern Watch and served during the wars in Afghanistan (Operation Enduring Freedom) and Iraq (Operation Iraqi Freedom) from 2001 and 2003 respectively. In 2011, Air Force F-16s took part in the intervention in Libya. On 11 September 2001, two unarmed F-16s were launched in an attempt to ram and down United Airlines Flight 93 before it reached Washington, DC, during the September 11, 2001, terrorist attacks, but Flight 93 was brought down by the passengers first, so the F-16s were retasked to patrol the local airspace and later escorted Air Force 1 back to Washington. The F-16 had been scheduled to remain in service with the U.S. Air Force until 2025. Its replacement was planned to be the F-35A variant of the Lockheed Martin F-35 Lightning II, which is expected to gradually begin replacing several multi-role aircraft among the program's member nations. However, due to delays in the F-35 program, all USAF F-16s will receive service life extension upgrades. Israel The F-16's first air-to-air combat success was achieved by the Israeli Air Force (IAF) over the Bekaa Valley on 28 April 1981, against a Syrian Mi-8 helicopter, which was downed with cannon fire. On 7 June 1981, eight Israeli F-16s, escorted by six F-15s, executed Operation Opera, their first employment in a significant air-to-ground operation. This raid severely damaged Osirak, an Iraqi nuclear reactor under construction near Baghdad, to prevent the regime of Saddam Hussein from using the reactor for the creation of nuclear weapons. The following year, during the 1982 Lebanon War Israeli F-16s engaged Syrian aircraft in one of the largest air battles involving jet aircraft, which began on 9 June and continued for two more days. Israeli Air Force F-16s were credited with 44 air-to-air kills during the conflict.Schow, Jr., Kenneth C., Lt. Col., USAF. "Falcons Against the Jihad: Israeli Airpower and Coercive Diplomacy in Southern Lebanon." Air University Press, November 1995. Retrieved 16 May 2008. In January 2000, Israel completed a purchase of 102 new F-16I aircraft in a deal totaling $4.5 billion. F-16s were also used in their ground-attack role for strikes against targets in Lebanon. IAF F-16s participated in the 2006 Lebanon War and the 2008–09 Gaza War. During and after the 2006 Lebanon war, IAF F-16s shot down Iranian-made UAVs launched by Hezbollah, using Rafael Python 5 air-to-air missiles. On 10 February 2018, an Israeli Air Force F-16I was shot down in northern Israel when it was hit by a relatively old model S-200 (NATO name SA-5 Gammon) surface-to-air missile of the Syrian Air Defense Force. The pilot and navigator ejected safely in Israeli territory. The F-16I was part of a bombing mission against Syrian and Iranian targets around Damascus after an Iranian drone entered Israeli air space and was shot down. An Israel Air Force investigation determined on 27 February 2018 that the loss was due to pilot error since the IAF determined the air crew did not adequately defend themselves. Pakistan During the Soviet–Afghan War, between May 1986 and January 1989, Pakistan Air Force F-16s shot down at least eight intruders from Afghanistan. The first three of these (two Afghan Su-22s and one An-26) were shot down by two pilots. Pakistani pilots also downed five other intruders (two Su-22s, two MiG-23s, and one Su-25). Most of these kills were by AIM-9 Sidewinder missiles, but at least one, a Su-22, was destroyed by cannon fire. Flight Lieutenant Khalid Mahmoud is credited with three of these kills. One F-16 was lost in these battles during an encounter between two F-16s and six Afghan aircraft on 29 April 1987; the pilot ejected safely. The downed F-16 was likely hit accidentally by a Sidewinder fired by the other F-16. On 7 June 2002, a Pakistan Air Force F-16B Block 15 (S. No. 82-605), flown by Sqn. Leader Zulfiqar, shot down an Indian Air Force unmanned aerial vehicle, an Israeli-made Searcher II, using an AIM-9L Sidewinder missile, during a night interception near Lahore, thus achieving a rare air-to-air kill of a drone at night. The Pakistan Air Force has used its F-16s in various foreign and internal military exercises, such as the "Indus Vipers" exercise in 2008 conducted jointly with Turkey. Between May 2009 and , the PAF F-16 fleet flew more than 5,500 sorties in support of the Pakistan Army's operations against the Taliban insurgency in the FATA region of North-West Pakistan. More than 80% of the dropped munitions were laser-guided bombs. On 27 February 2019, following a Pakistan air force airstrike in Indian-administered Kashmir, Pakistani officials said that two of its fighter jets flown by Wg. Cdr. Nauman Ali Khan and Sqn. Ldr. Hassan Mehmood Siddiqui, shot down one MiG-21 and one Su-30MKI belonging to Indian air force. Indian officials only confirmed the loss of one MiG-21 but denied losing any Su-30MKI in the clash. Additionally Indian officials also claimed to have shot down one F-16 belonging to Pakistan air force. However, the Pakistani officials deny losing any F-16 in the clash. On 28 February 2019, India displayed debris of an AMRAAM missile to show use of F-16s in the mission. Foreign Policy magazine reported that the US had completed a physical count of Pakistan's F-16s and found none missing. On 6 April 2019, Hindustan Times reported that the Pentagon declined to make official statement over any such count. Washington Post reported that the Pentagon and the State Department have not issued a public statement on the F-16 count, however, there have been no counter-leaks contradicting the report published by the Foreign Policy. On 8 April 2019, the IAF released two redacted radar images of aerial engagement to reassert its claims of downing an F-16. According to Indian officials, the radar images were redacted to avoid revealing certain detail for security reasons. However, Pakistani officials rejected the radar images released by India. On 5 April 2019, PAF officials released images of all four missile recovered from the downed MiG-21 to show that the IAF aircraft did not fire its missiles. The only confirmed loss from the engagement was the Indian MiG-21. Turkey The Turkish Air Force acquired its first F-16s in 1987. F-16s were later produced in Turkey under four phases of Peace Onyx programs. In 2015, they were upgraded to Block 50/52+ with CCIP by Turkish Aerospace Industries. Turkish F-16s are being fitted with indigenous AESA radars and EW suite called SPEWS-II. On 18 June 1992, a Greek Mirage F-1 crashed during a dogfight with a Turkish F-16. On 8 February 1995, a Turkish F-16 crashed into the Aegean sea after being intercepted by Greek Mirage F1 fighters. Turkish F-16s participated in the Bosnia Herzegovina and Kosovo since 1993 in support of United Nations resolutions. On 8 October 1996, seven months after the escalation a Greek Mirage 2000 reportedly fired an R.550 Magic II missile and shot down a Turkish F-16D over the Aegean Sea near Chios island. The Turkish pilot died, while the co-pilot ejected and was rescued by Greek forces. In August 2012, after the downing of a RF-4E on the Syrian Coast, Turkish Defence Minister İsmet Yılmaz confirmed that the Turkish F-16D was shot down by a Greek Mirage 2000 with an R.550 Magic II in 1996 near Chios island. Greece denies that the F-16 was shot down. Both Mirage 2000 pilots reported that the F-16 caught fire and they saw one parachute. On 23 May 2006, two Greek F-16s intercepted a Turkish RF-4 reconnaissance aircraft and two F-16 escorts off the coast of the Greek island of Karpathos, within the Athens FIR. A mock dogfight ensued between the two sides, resulting in a midair collision between a Turkish F-16 and a Greek F-16. The Turkish pilot ejected safely, but the Greek pilot died due to damage caused by the collision. Five days before the incident, a Turkish F-16 pilot was doing dangerous maneuvers, while being intercepted by Greek F-16 fighters, attempting to hit a Greek fighter. Turkey used its F-16s extensively in its conflict with Kurdish insurgents in southeastern parts of Turkey and Iraq. Turkey launched its first cross-border raid on 16 December 2007, a prelude to the 2008 Turkish incursion into northern Iraq, involving 50 fighters before Operation Sun. This was the first time Turkey had mounted a night-bombing operation on a massive scale, and also the largest operation conducted by the Turkish Air Force. During the Syrian Civil War, Turkish F-16s were tasked with airspace protection on the Syrian border. After the RF-4 downing in June 2012 Turkey changed its rules of engagement against Syrian aircraft, resulting in scrambles and downings of Syrian combat aircraft. On 16 September 2013, a Turkish Air Force F-16 shot down a Syrian Arab Air Force Mil Mi-17 helicopter in Latakia province near the Turkish border. On 23 March 2014, a Turkish Air Force F-16 shot down a Syrian Arab Air Force Mikoyan-Gurevich MiG-23 when it allegedly entered Turkish air space during a ground attack mission against Al Qaeda-linked insurgents. On 16 May 2015, Two Turkish Air Force F-16s shot down a Syrian Mohajer 4 UAV firing two AIM-9 missiles after it trespassed into Turkish airspace for 5 minutes. A Turkish Air Force F-16 shot down a Russian Air Force Sukhoi Su-24 on the Turkey-Syria border on 24 November 2015. On 1 March 2020, two Syrian Sukhoi Su-24s were shot down by Turkish Air Force F-16s using air-to-air missiles over Syria's Idlib province. All four pilots safely ejected. On 3 March 2020, a Syrian Arab Army Air Force L-39 combat trainer was shot down by a Turkish F-16 over Syria's Idlib province. The pilot died. As a part of Turkish F-16 modernization program new air to air missiles are being developed and tested for the aircraft. GÖKTUĞ program led by TUBITAK SAGE has presented two types of air to air missiles named as Bozdogan (Merlin) and Gokdogan (Peregrine). While Bozdogan has been categorized as a Within Visual Range Air-to-Air Missile (WVRAAM), Gokdogan is a Beyond Visual Range Air-to-Air-Missile (BVRAAM). On 14 April 2021, first live test exercise of Bozdogan have successfully completed and the first batch of missiles are expected to be delivered throughout the same year to the Turkish Air Force. Egypt On 16 February 2015, Egyptian F-16s struck weapons caches and training camps of the Islamic State (ISIS) in Libya in retaliation for the murder of 21 Egyptian Coptic Christian construction workers by masked militants affiliated with ISIS. The air strikes killed 64 ISIS fighters, including three leaders in Derna and Sirte on the coast. Others The Royal Netherlands Air Force, Belgian Air Force, Royal Danish Air Force, Royal Norwegian Air Force, and Venezuela Air Force have flown the F-16 on combat missions.Winning, Andrew. "Libya: Gaddafi envoy in Europe, exchanging fire in Brega." Reuters, 4 April 2011. Retrieved 16 September 2011. A Yugoslavian MiG-29 was shot down by a Dutch F-16AM during the Kosovo War in 1999. Belgian and Danish F-16s also participated in joint operations over Kosovo during the war. Dutch, Belgian, Danish, and Norwegian F-16s were deployed during the 2011 intervention in Libya and in Afghanistan. In Libya, Norwegian F-16s dropped almost 550 bombs and flew 596 missions, some 17% of the total strike missions including the bombing of Muammar Gaddafi's headquarters. The Royal Moroccan Air Force and the Royal Bahraini Air Force each lost a single F-16C, both shot down by Houthis anti aircraft fire during the Saudi Arabian-led intervention in Yemen, respectively on 11 May 2015 and on 30 December 2015. In late March 2018, Croatia announced its intention to purchase 12 used Israeli F-16C/D "Barak"/"Brakeet" jets, pending U.S. approval. Acquiring these F-16s would allow Croatia to retire its aging MiG-21s. On 11 July 2018, Slovakia's government approved the purchase of 14 F-16s Block 70/72 to replace its aging fleet of Soviet-made MiG-29s. A contract was signed on 12 December 2018 in Bratislava. Variants F-16 models are denoted by increasing block numbers to denote upgrades. The blocks cover both single- and two-seat versions. A variety of software, hardware, systems, weapons compatibility, and structural enhancements have been instituted over the years to gradually upgrade production models and retrofit delivered aircraft. While many F-16s were produced according to these block designs, there have been many other variants with significant changes, usually due to modification programs. Other changes have resulted in role-specialization, such as the close air support and reconnaissance variants. Several models were also developed to test new technology. The F-16 design also inspired the design of other aircraft, which are considered derivatives. Older F-16s are being converted into QF-16 drone targets. F-16A/B The F-16A (single seat) and F-16B (two seat) were initial production variants. These variants include the Block 1, 5, 10, 15 and 20 versions. Block 15 was the first major change to the F-16 with larger horizontal stabilizers. It is the most numerous of all F-16 variants with 475 produced. Many F-16A and B aircraft have been upgraded to the Mid-Life Upgrade (MLU) Block 20 standard, becoming functionally equivalent to mid-production C/D models. F-16C/D The F-16C (single seat) and F-16D (two seat) variants entered production in 1984. The first C/D version was the Block 25 with improved cockpit avionics and radar which added all-weather capability with beyond-visual-range (BVR) AIM-7 and AIM-120 air-air missiles. Block 30/32, 40/42, and 50/52 were later C/D versions. The F-16C/D had a unit cost of US$18.8 million (1998). Operational cost per flight hour has been estimated at $7,000 to $22,470 or $24,000, depending on calculation method. F-16E/F The F-16E (single seat) and F-16F (two seat) are newer F-16 Block 60 variants based on the F-16C/D Block 50/52. The United Arab Emirates invested heavily in its development. It features improved AN/APG-80 active electronically scanned array (AESA) radar, avionics, conformal fuel tanks (CFTs), and the more powerful General Electric F110-GE-132 engine. F-16INFor the Indian MRCA competition for the Indian Air Force, Lockheed Martin offered the F-16IN Super Viper. The F-16IN is based on the F-16E/F Block 60 and features conformal fuel tanks; AN/APG-80 AESA radar, GE F110-GE-132A engine with FADEC controls; electronic warfare suite and Infra-red search and track (IRST) unit; updated glass cockpit; and a helmet-mounted cueing system. As of 2011, the F-16IN is no longer in the competition. In 2016, Lockheed Martin offered the new F-16 Block 70/72 version to India under the Make in India program. In 2016, Indian government offered to purchase 200 (potentially up to 300) fighters in a deal worth $13–15bn. As of 2017, Lockheed Martin has agreed to manufacture F-16 Block 70 fighters in India with the Indian defense firm Tata Advanced Systems Limited. The new production line could be used to build F-16s for India and for exports. F-16IQ In September 2010, the Defense Security Cooperation Agency informed the United States Congress of a possible Foreign Military Sale of 18 F-16IQ aircraft along with the associated equipment and services to the newly reformed Iraqi Air Force. Total value of sale is estimated at . F-16NThe F-16N was an adversary aircraft operated by the United States Navy. It is based on the standard F-16C/D Block 30 and is powered by the General Electric F110-GE-100 engine, and is capable of supercruise. The F-16N has a strengthened wing and is capable of carrying an Air Combat Maneuvering Instrumentation (ACMI) pod on the starboard wingtip. Although the single-seat F-16Ns and twin-seat (T)F-16Ns are based on the early-production small-inlet Block 30 F-16C/D airframe, they retain the APG-66 radar of the F-16A/B. In addition, the aircraft's 20 mm cannon has been removed, as has the ASPJ, and they carry no missiles. Their EW fit consists of an ALR-69 radar warning receiver (RWR) and an ALE-40 chaff/flare dispenser. The F-16Ns and (T)F-16Ns have the standard Air Force tailhook and undercarriage and are not aircraft carrier capable. Production totaled 26 airframes, of which 22 are single-seat F-16Ns and four are twin-seat TF-16Ns. The initial batch of aircraft were in service between 1988 and 1998. At that time, hairline cracks were discovered in several bulkheads and the Navy did not have the resources to replace them, so the aircraft were eventually retired, with one aircraft sent to the collection of the National Naval Aviation Museum at NAS Pensacola, Florida, and the remainder placed in storage at Davis-Monthan AFB. These aircraft were later replaced by embargoed ex-Pakistani F-16s in 2003. The original inventory of F-16Ns were previously operated by adversary squadrons at NAS Oceana, Virginia; NAS Key West, Florida and the former NAS Miramar, California. The current F-16A/B aircraft are operated by the Naval Strike and Air Warfare Center at NAS Fallon, Nevada. F-16VAt the 2012 Singapore Air Show, Lockheed Martin unveiled plans for the new F-16V variant with the V suffix for its Viper nickname. It features an AN/APG-83 active electronically scanned array (AESA) radar, a new mission computer and electronic warfare suite, automated ground collision avoidance system, and various cockpit improvements; this package is an option on current production F-16s and can be retrofitted to most in service F-16s. First flight took place 21 October 2015. Lockheed and AIDC both invested in the development of the aircraft and will share revenue from all sales and upgrades. Upgrades to Taiwan's F-16 fleet began in January 2017. The first country to confirm the purchase of 16 new F-16V Block 70/72 was Bahrain. Greece announced the upgrade of 84 F-16C/D Block 52+ and Block 52+ Advanced (Block 52M) to the latest V (Block 70/72) variant in October 2017. Slovakia announced on 11 July 2018 that it intends to purchase 14 F-16V Block 70/72 aircraft. Lockheed Martin has redesignated the F-16V Block 70 as the "F-21" in its offering for India's fighter requirement. Taiwan's Republic of China Air Force announced on 19 March 2019 that it formally requested the purchase of an additional 66 F-16V jets. The Trump administration approved the sale on 20 August 2019. On 14 August 2020, Lockheed Martin was awarded a US$62 billion contract by the US DoD that includes 66 new F-16s at US$8 billion for Taiwan. QF-16 In September 2013, Boeing and the U.S. Air Force tested an unmanned F-16, with two US Air Force pilots controlling the airplane from the ground as it flew from Tyndall AFB over the Gulf of Mexico. Related developments Vought Model 1600 Proposed naval variant General Dynamics F-16XL 1980s technology demonstrator General Dynamics NF-16D VISTA 1990s experimental fighter Mitsubishi F-2 1990s Japanese multi-role fighter based on the F-16 Operators By July 2010, there had been 4,500 F-16s delivered. Former operators – Italian Air Force leased up to 30 F-16As and 4 F-16Bs from the USAF from 2001 until 2012. – Royal Norwegian Air Force on 6 January 2022, Norway announced that all F-16s had been retired. Notable accidents and incidents The F-16 has been involved in over 670 hull-loss accidents as of January 2020. On 8 May 1975, while practicing a 9-g aerial display maneuver with the second YF-16 (tail number 72-1568) at Fort Worth, Texas, prior to being sent to the Paris Air Show, one of the main landing gears jammed. The test pilot, Neil Anderson, had to perform an emergency gear-up landing and chose to do so in the grass, hoping to minimize damage and to avoid injuring any observers. The aircraft was only slightly damaged, but due to the mishap the first prototype was sent to the Paris Air Show in its place. On 15 November 1982, while on a training flight outside Kunsan Air Base in South Korea, USAF Captain Ted Harduvel died when he crashed inverted into a mountain ridge. In 1985, Harduvel's widow filed a lawsuit against General Dynamics claiming an electrical malfunction, not pilot error, as the cause; a jury awarded the plaintiff $3.4 million in damages. However, in 1989, the U.S. Court of Appeals ruled the contractor had immunity to lawsuits, overturning the previous judgment. The court remanded the case to the trial court "for entry of judgment in favor of General Dynamics". The accident and subsequent trial was the subject of the 1992 film Afterburn.Tucker, Ken. "Afterburn Review." Entertainment Weekly, 29 May 1992. On 23 March 1994, during a joint Army-Air Force exercise at Pope AFB, North Carolina, F-16D (AF Serial No. 88-0171) of the 23d Fighter Wing / 74th Fighter Squadron was simulating an engine-out approach when it collided with a USAF C-130E. Both F-16 crew members ejected, but their aircraft, on full afterburner, continued on an arc towards Green Ramp and struck a USAF C-141 that was being boarded by US Army paratroopers. This accident resulted in 24 fatalities and at least 100 others injured. It has since been known as the "Green Ramp disaster". On 15 September 2003, a USAF Thunderbirds F-16C crashed during an air show at Mountain Home AFB, Idaho. Captain Christopher Stricklin attempted a "split S" maneuver based on an incorrect mean-sea-level altitude of the airfield. Climbing to only above ground level instead of , Stricklin had insufficient altitude to complete the maneuver, but was able to guide the aircraft away from spectators and ejected less than one second before impact. Stricklin survived with only minor injuries; the aircraft was destroyed. USAF procedure for demonstration "Split-S" maneuvers was changed, requiring both pilots and controllers to use above-ground-level (AGL) altitudes. On 26 January 2015, a Greek F-16D crashed while performing a NATO training exercise in Albacete, Spain. Both crew members and nine French soldiers on the ground died when it crashed in the flight-line, destroying or damaging two Italian AMXs, two French Alpha jets, and one French Mirage 2000.Onze morts dont neuf Français lors du crash d'un avion de chasse en Espagne Le Monde.fr avec AFP |26 January 2015 à 19h27 • Mis à jour le 27 January 2015 à 13h36 On 7 July 2015, an F-16CJ collided with a Cessna 150M over Moncks Corner, South Carolina, U.S. The pilot of the F-16 ejected safely, but both people in the Cessna were killed. On 11 October 2018, an F-16 MLU from the 2nd Tactical Wing of the Belgian Air Component, on the apron at Florennes Air Station, was hit by a gun burst from a nearby F-16, whose cannon was fired inadvertently during maintenance. The aircraft caught fire and was burned to the ground, while two other F-16s were damaged and two maintenance personnel were treated for aural trauma. Aircraft on display Belgium F-16A FA-01 – On display at the Royal Museum of the Armed Forces and Military History in Brussels, Belgium FA-16 – On display at Kleine Brogel Air Base FA-55 – On display at the Chateau de Savigny les Beaune in Beaune, France. A former Belgian Air Force example. FA-113 – On display at Beauvechain Air Base. Germany F-16A 78-0057 – Pylon display at Spangdahlem AB, Germany Israel F-16A F-16A Netz 107 – on display at the Israeli Air Force Museum in Hatzerim Airbase, Beer Sheva. This F-16 was credited with 6.5 shoot-downs of enemy aircraft and took part in Operation Opera in which the Iraqi nuclear reactor was destroyed. Indonesia F-16C TS-1643 – On display at the Roesmin Nurjadin Air Force Base in Pekanbaru, Riau. This F-16 was previously crashed and then burned due to technical problem when taking off from Halim Perdanakusuma International Airport and suffered total loss from the incident. Japan F-16A 78-0053 – Pylon display at Misawa AB, Japan Portugal F-16A 15150 – On display at Monte Real Air Base, Portugal The Netherlands F-16A J-215 of the RNLAF on display at the National Military museum at former airbase Soesterberg. J-228 of the RNLAF on pylon display past the Leeuwarden Airbase Main Gate entry road. J-240 of the RNLAF on pylon display past the Volkel Airbase Main Gate on the entry road. J-246 of the RNLAF on pylon display on the N264 / Zeelandsedijk roundabout near the Volkel Airbase Main Gate entry. Serbia F-16CG 88-0550 – F-16CG at Museum of Aviation, Belgrade. Thailand F-16A 79-0324 – On display at Royal Thai Air Force Museum, Thailand. 79-0375 – On display at Navaminda Kasatriyadhiraj Royal Thai Air Force Academy, Thailand. Turkey F-16C 89-0032 – F-16C Block 40A at Istanbul Aviation Museum. United States YF-16 72-1567 – Virginia Air and Space Center, Hampton, Virginia 72-1568 – under restoration for display at the Fort Worth Aviation Museum in Fort Worth, Texas. YF-16A (Full-Scale Development) 75-0745 – Used as a
when Gregory was selected as a candidate for the bishopric of Constantinople, both Alexandria and Rome opposed him because of his Antiochene background. Meletian schism See of Constantinople The incumbent bishop of Constantinople was Demophilus, a Homoian Arian. On his accession to the imperial throne, Theodosius offered to confirm Demophilus as bishop of the imperial city on the condition of accepting the Nicene Creed; however, Demophilus refused to abandon his Arian beliefs, and was immediately ordered to give up his churches and leave Constantinople. After forty years under the control of Arian bishops, the churches of Constantinople were now restored to those who subscribed to the Nicene Creed; Arians were also ejected from the churches of other cities in the Eastern Roman Empire thus re-establishing Christian orthodoxy in the East. There ensued a contest to control the newly recovered see. A group led by Maximus the Cynic gained the support of Patriarch Peter of Alexandria by playing on his jealousy of the newly created see of Constantinople. They conceived a plan to install a cleric subservient to Peter as bishop of Constantinople so that Alexandria would retain the leadership of the Eastern Churches. Many commentators characterize Maximus as having been proud, arrogant and ambitious. However, it is not clear the extent to which Maximus sought this position due to his own ambition or if he was merely a pawn in the power struggle. In any event, the plot was set into motion when, on a night when Gregory was confined by illness, the conspirators burst into the cathedral and commenced the consecration of Maximus as bishop of Constantinople. They had seated Maximus on the archiepiscopal throne and had just begun shearing away his long curls when the day dawned. The news of what was transpiring quickly spread and everybody rushed to the church. The magistrates appeared with their officers; Maximus and his consecrators were driven from the cathedral, and ultimately completed the tonsure in the tenement of a flute-player. The news of the brazen attempt to usurp the episcopal throne aroused the anger of the local populace among whom Gregory was popular. Maximus withdrew to Thessalonica to lay his cause before the emperor but met with a cold reception there. Theodosius committed the matter to Ascholius, the much respected bishop of Thessalonica, charging him to seek the counsel of Pope Damasus I. Damasus' response repudiated Maximus summarily and advised Theodosius to summon a council of bishops for the purpose of settling various church issues such as the schism in Antioch and the consecration of a proper bishop for the see of Constantinople. Damasus condemned the translation of bishops from one see to another and urged Theodosius to "take care that a bishop who is above reproach is chosen for that see." The proceedings Thirty-six Pneumatomachians arrived but were denied admission to the council when they refused to accept the Nicene creed. Since Peter, the Pope of Alexandria, was not present, the presidency over the council was given to Meletius as Patriarch of Antioch. The first order of business before the council was to declare the clandestine consecration of Maximus invalid, and to confirm Theodosius' installation of Gregory Nazianzus as Archbishop of Constantinople. When Meletius died shortly after the opening of the council, Gregory was selected to lead the council. The Egyptian and Macedonian bishops who had supported Maximus's ordination arrived late for the council. Once there, they refused to recognise Gregory's position as head of the church of Constantinople, arguing that his transfer from the See of Sasima was canonically illegitimate because one of the canons of the Council of Nicaea had forbidden bishops to transfer from their sees. McGuckin describes Gregory as physically exhausted and worried that he was losing the confidence of the bishops and the emperor. Ayres goes further and asserts that Gregory quickly made himself unpopular among the bishops by supporting the losing candidate for the bishopric of Antioch and vehemently opposing any compromise with the Homoiousians. Rather than press his case and risk further division, Gregory decided to resign his office: "Let me be as the Prophet Jonah! I was responsible for the storm, but I would sacrifice myself for the salvation of the ship. Seize me and throw me... I was not happy when I ascended the throne, and gladly would I descend it." He shocked the council with his surprise resignation and then delivered a dramatic speech to Theodosius asking to be released from his offices. The emperor, moved by his words, applauded, commended his labor, and granted his resignation. The council asked him to appear once more for a farewell ritual and celebratory orations. Gregory used this occasion to deliver a final address (Or. 42) and then departed. Nectarius, an unbaptized civil official, was chosen to succeed Gregory as president of the council. Canons Seven canons, four of these doctrinal canons and three disciplinary canons, are attributed to the council and accepted by both the Eastern Orthodox Church and the Oriental Orthodox Churches; the Roman Catholic Church accepts only the first four because only the first four appear in the oldest copies and there is evidence that the last three were later additions. The first canon is an important dogmatic condemnation of all shades of Arianism, and also of Macedonianism and Apollinarianism. The second canon renewed the Nicene legislation imposing upon the bishops the observance of diocesan and patriarchal limits. The third canon reads: The fourth canon decreed the consecration of Maximus as Bishop of Constantinople to be invalid, declaring "that [Maximus] neither was nor is a bishop, nor are they who have been ordained by him in any rank of the clergy". This canon was directed not only against Maximus, but also against the Egyptian bishops who had conspired to consecrate him clandestinely at Constantinople, and against any subordinate ecclesiastics that he might have ordained in Egypt. The fifth canon might actually have been passed the next year, 382, and is in regard to a Tome of the Western bishops, perhaps that of Pope Damasus I. The sixth canon might belong to the year 382 as well and was subsequently passed at the Quinisext Council as canon 95. It limits the ability to accuse bishops of wrongdoing. The seventh canon regards procedures for receiving certain heretics into the church. Dispute concerning the third canon The third canon was a first step in the rising importance of the new imperial capital, just fifty years old, and was notable in that it demoted the patriarchs of Antioch and Alexandria. Jerusalem, as the site of the first church, retained its place of honor. It originally did not elicit controversy, as the Papal legate Paschasinus and a partisan of his, Diogenes of Cyzicus, reference the canon as being in force during the first session of the Council of Chalcedon. According to Eusebius of Dorlyeum, another Papal ally during Chalcedon, "I myself read this very canon [Canon 3] to the most holy pope in Rome in the presence of the clerics of Constantinople and he accepted it." Nevertheless, controversy has ensued since then. The status of the canon became questioned after disputes over Canon 28 of the Council of Chalcedon erupted. Pope Leo the Great, declared that this canon had never been submitted to Rome and that their lessened honor was a violation of the Nicene council order. Throughout the next several centuries, the Western Church asserted that the Bishop of Rome had supreme authority, and by the time of the Great Schism the Roman Catholic Church based its claim to supremacy on the succession of St. Peter.
resign his office: "Let me be as the Prophet Jonah! I was responsible for the storm, but I would sacrifice myself for the salvation of the ship. Seize me and throw me... I was not happy when I ascended the throne, and gladly would I descend it." He shocked the council with his surprise resignation and then delivered a dramatic speech to Theodosius asking to be released from his offices. The emperor, moved by his words, applauded, commended his labor, and granted his resignation. The council asked him to appear once more for a farewell ritual and celebratory orations. Gregory used this occasion to deliver a final address (Or. 42) and then departed. Nectarius, an unbaptized civil official, was chosen to succeed Gregory as president of the council. Canons Seven canons, four of these doctrinal canons and three disciplinary canons, are attributed to the council and accepted by both the Eastern Orthodox Church and the Oriental Orthodox Churches; the Roman Catholic Church accepts only the first four because only the first four appear in the oldest copies and there is evidence that the last three were later additions. The first canon is an important dogmatic condemnation of all shades of Arianism, and also of Macedonianism and Apollinarianism. The second canon renewed the Nicene legislation imposing upon the bishops the observance of diocesan and patriarchal limits. The third canon reads: The fourth canon decreed the consecration of Maximus as Bishop of Constantinople to be invalid, declaring "that [Maximus] neither was nor is a bishop, nor are they who have been ordained by him in any rank of the clergy". This canon was directed not only against Maximus, but also against the Egyptian bishops who had conspired to consecrate him clandestinely at Constantinople, and against any subordinate ecclesiastics that he might have ordained in Egypt. The fifth canon might actually have been passed the next year, 382, and is in regard to a Tome of the Western bishops, perhaps that of Pope Damasus I. The sixth canon might belong to the year 382 as well and was subsequently passed at the Quinisext Council as canon 95. It limits the ability to accuse bishops of wrongdoing. The seventh canon regards procedures for receiving certain heretics into the church. Dispute concerning the third canon The third canon was a first step in the rising importance of the new imperial capital, just fifty years old, and was notable in that it demoted the patriarchs of Antioch and Alexandria. Jerusalem, as the site of the first church, retained its place of honor. It originally did not elicit controversy, as the Papal legate Paschasinus and a partisan of his, Diogenes of Cyzicus, reference the canon as being in force during the first session of the Council of Chalcedon. According to Eusebius of Dorlyeum, another Papal ally during Chalcedon, "I myself read this very canon [Canon 3] to the most holy pope in Rome in the presence of the clerics of Constantinople and he accepted it." Nevertheless, controversy has ensued since then. The status of the canon became questioned after disputes over Canon 28 of the Council of Chalcedon erupted. Pope Leo the Great, declared that this canon had never been submitted to Rome and that their lessened honor was a violation of the Nicene council order. Throughout the next several centuries, the Western Church asserted that the Bishop of Rome had supreme authority, and by the time of the Great Schism the Roman Catholic Church based its claim to supremacy on the succession of St. Peter. At the Fourth Council of Constantinople (869), the Roman legates asserted the place of the bishop of Rome's honor over the bishop of Constantinople's. After the Great Schism of 1054, in 1215 the Fourth Lateran Council declared, in its fifth canon, that the Roman Church "by the will of God holds over all others pre-eminence of ordinary power as the mother and mistress of all the faithful". Roman supremacy over the whole world was formally claimed by the new Latin patriarch. The Roman correctores of Gratian, insert the words: "canon hic ex iis est quos apostolica Romana sedes a principio et longo post tempore non recipit" ("this canon is one of those that the Apostolic See of Rome has not accepted from the beginning and ever since"). Later on, Baronius asserted that the third canon was not authentic, not in fact decreed by the council. Contrarily, roughly contemporaneous Greeks maintained that it did not declare supremacy of the Bishop of Rome, but the primacy; "the first among equals", similar to how they today view the Bishop of Constantinople. Aftermath It has been asserted by many that a synod was held by Pope Damasus I in the following year (382) which opposed the disciplinary canons of the Council of Constantinople, especially the third canon which placed Constantinople above Alexandria and Antioch. The synod protested against this raising of the bishop of the new imperial capital, just fifty years old, to a status higher than that of the bishops of Alexandria and Antioch, and stated that the primacy of the Roman see had not been established by a gathering of bishops but rather by Christ himself. Thomas Shahan says that, according to Photius too, Pope Damasus approved the council, but he adds that, if any part of the council were approved by this pope, it could have been only its revision of the Nicene Creed, as was the case also when Gregory the Great recognized it as one of the four general councils, but only in its dogmatic utterances. Niceno-Constantinopolitan Creed Traditionally, the Niceno-Constantinopolitan Creed has been associated with the Council of Constantinople (381). It is roughly theologically equivalent to the Nicene Creed, but includes two additional articles: an article on the Holy Spirit—describing Him as "the Lord, the Giver of Life, Who proceeds from the Father, Who with the Father and the Son is worshipped and glorified, and Who spoke through the prophets"—and an article about the church, baptism, and the resurrection of the dead. (For the full text of both creeds, see Comparison between Creed of 325 and Creed of 381.) However, scholars are not agreed on the connection between the Council of Constantinople and the Niceno–Constantinopolitan Creed. Some modern scholars believe that this creed, or something close to it, was stated by the bishops at Constantinople, but not promulgated as an official act of the council. Scholars also dispute whether this creed was simply an expansion of the Creed of Nicaea, or whether it was an expansion of another traditional creed similar but not identical to the one from Nicaea. In 451, the Council of Chalcedon referred to this creed as "the creed ... of the 150 saintly fathers assembled in Constantinople", indicating that this creed was associated with Constantinople (381) no later than 451. Christology This council condemned Arianism which began to die out with further condemnations at a council of Aquileia by Ambrose of Milan
who return from some kind of heresy and display the audacity to falsify completely [κατακιβδηλεῦσαι άποθρασυνθείη] the antiquity of this sacred and venerable Horos [Rule] with illegitimate words, or additions, or subtractions'." Eastern Orthodox Christians argue that thereby the council condemned not only the addition of the Filioque clause to the creed but also denounced the clause as heretical (a view strongly espoused by Photius in his polemics against Rome), while Roman Catholics separate the two and insist on the theological orthodoxy of the clause. According to non-Catholic Philip Schaff, "To the Greek acts was afterwards added a (pretended) letter of Pope John VIII. to Photius, declaring the Filioque to be an addition which is rejected by the church of Rome, and a blasphemy which must be abolished calmly and by degrees." Confirmation and further reception Whether and how far the council was confirmed by Pope John VIII is also a matter of dispute. The council was held in the presence of papal legates, who approved of the proceedings. Roman Catholic historian Francis Dvornik argues that the pope accepted the acts of the council and annulled those of the Council of 869–870. Other Catholic historians, such as Warren Carroll, dispute this view, arguing that the pope rejected the council. Siecienski says that the Pope gave only a qualified assent to the acts of the council. Philip Schaff opines that the pope, deceived by his legates about the actual proceedings, first applauded the emperor but later denounced the council. In any case, the Pope had already accepted the reinstatement of Photius as Patriarch. On 8 March 870, three days after the end of the council, the papal and Eastern delegates met with the Bulgarian ambassadors led by the kavhan Peter to decide the status of the Bulgarian Orthodox Church. Since the Bulgarians were not satisfied with the positions of the Pope after prolonged negotiations, they reached favorable agreement with the Byzantines and the decision was taken that the Bulgarian Church should become Eastern Christian. The Photian Schism (863–867) that led to the councils of 869 and 879 represents a break between East and West. While the previous seven ecumenical councils are recognized as ecumenical and authoritative by both East and West, many Eastern Orthodox Christians recognize the council of 879 as the Eighth Ecumenical Council, arguing that it annulled the earlier one. This council is referred to as Ecumenical in the Encyclical of the Eastern Patriarchs of 1848. The Catholic Church, however, recognizes the council of 869 as the eighth ecumenical council and does not place the council of 879 among ecumenical councils. See also Fifth Council of Constantinople References Bibliography Further reading Philip Schaff's Church History: Conflict
in the East was attended by the papal legates (who had brought with them a gift from the pope—a pallium for Photius) and by over 400 bishops, and who immediately confirmed Photius as rightful patriarch." The council also implicitly condemned the addition of the Filioque to the Nicene-Constantinopolitan Creed, an addition rejected at that time in Rome: "The Creed (without the filioque) was read out and a condemnation pronounced against those who 'impose on it their own invented phrases [ἰδίας εὑρεσιολογίαις] and put this forth as a common lesson to the faithful or to those who return from some kind of heresy and display the audacity to falsify completely [κατακιβδηλεῦσαι άποθρασυνθείη] the antiquity of this sacred and venerable Horos [Rule] with illegitimate words, or additions, or subtractions'." Eastern Orthodox Christians argue that thereby the council condemned not only the addition of the Filioque clause to the creed but also denounced the clause as heretical (a view strongly espoused by Photius in his polemics against Rome), while Roman Catholics separate the two and insist on the theological orthodoxy of the clause. According to non-Catholic Philip Schaff, "To the Greek acts was afterwards added a (pretended) letter of Pope John VIII. to Photius, declaring the Filioque to be an addition which is rejected by the church of Rome, and a blasphemy which must be abolished calmly and by degrees." Confirmation and further reception Whether and how far the council was confirmed by Pope John VIII is also a matter of dispute. The council was held in
Prices and Production "one of the most frightful muddles I have ever read", famously adding: "It is an extraordinary example of how, starting with a mistake, a remorseless logician can end in Bedlam". Notable economists who studied with Hayek at the LSE in the 1930s and 1940s include Arthur Lewis, Ronald Coase, William Baumol, John Maynard Keynes, CH Douglas, John Kenneth Galbraith, Leonid Hurwicz, Abba Lerner, Nicholas Kaldor, George Shackle, Thomas Balogh, L. K. Jha, Arthur Seldon, Paul Rosenstein-Rodan and Oskar Lange. Some were supportive and some were critical of his ideas. Hayek also taught or tutored many other LSE students, including David Rockefeller. Unwilling to return to Austria after the Anschluss brought it under the control of Nazi Germany in 1938, Hayek remained in Britain. Hayek and his children became British subjects in 1938. He held this status for the remainder of his life, but he did not live in Great Britain after 1950. He lived in the United States from 1950 to 1962 and then mostly in Germany, but also briefly in Austria. In 1947, Hayek was elected a Fellow of the Econometric Society. The Road to Serfdom Hayek was concerned about the general view in Britain's academia that fascism was a capitalist reaction to socialism and The Road to Serfdom arose from those concerns. The title was inspired by the French classical liberal thinker Alexis de Tocqueville's writings on the "road to servitude". It was first published in Britain by Routledge in March 1944 and was quite popular, leading Hayek to call it "that unobtainable book" also due in part to wartime paper rationing. When it was published in the United States by the University of Chicago in September of that year, it achieved greater popularity than in Britain. At the instigation of editor Max Eastman, the American magazine Reader's Digest also published an abridged version in April 1945, enabling The Road to Serfdom to reach a far wider audience than academics. The book is widely popular among those advocating individualism and classical liberalism. Chicago In 1950, Hayek left the London School of Economics. After spending the 1949–1950 academic year as a visiting professor at the University of Arkansas, Hayek was conferred professorship by the University of Chicago, where he became a professor in the Committee on Social Thought. Hayek's salary was funded not by the university, but by an outside foundation, the William Volker Fund. Hayek had made contact with many at the University of Chicago in the 1940s, with Hayek's The Road to Serfdom playing a seminal role in transforming how Milton Friedman and others understood how society works. Hayek conducted a number of influential faculty seminars while at the University of Chicago and a number of academics worked on research projects sympathetic to some of Hayek's own, such as Aaron Director, who was active in the Chicago School in helping to fund and establish what became the "Law and Society" program in the University of Chicago Law School. Hayek, Frank Knight, Friedman and George Stigler worked together in forming the Mont Pèlerin Society, an international forum for neoliberals. Hayek and Friedman cooperated in support of the Intercollegiate Society of Individualists, later renamed the Intercollegiate Studies Institute, an American student organisation devoted to libertarian ideas. Although they shared most political beliefs, disagreeing primarily on question of monetary policy, Hayek and Friedman worked in separate university departments with different research interests and never developed a close working relationship. According to Alan O. Ebenstein, who wrote biographies of both of them, Hayek probably had a closer friendship with Keynes than with Friedman. Hayek received a Guggenheim Fellowship in 1954. Another influential political philosopher and German-speaking exile at the University of Chicago at the time was Leo Strauss, but according to his student Joseph Cropsey who also knew Hayek, there was no contact between the two of them. After editing a book on John Stuart Mill's letters he planned to publish two books on the liberal order, The Constitution of Liberty and "The Creative Powers of a Free Civilization" (eventually the title for the second chapter of The Constitution of Liberty). He completed The Constitution of Liberty in May 1959, with publication in February 1960. Hayek was concerned that "with that condition of men in which coercion of some by others is reduced as much as is possible in society". Hayek was disappointed that the book did not receive the same enthusiastic general reception as The Road to Serfdom had sixteen years before. He left Chicago mostly because of financial reasons, being concerned about his pension provisions. His primary source of income was his salary and he received some additional money from book royalties, but avoided other lucrative sources of income for academics such as writing textbooks. He spent a lot on his frequent travels. He regularly spent summers in Austrian Alps, usually in the Tyrolean village Obergurgl where he enjoyed mountain climbing, and also visited Japan four times with additional trips to Tahiti, Fiji, Indonesia, Australia, New Caledonia and Ceylon. After his divorce, his financial situation worsened. Freiburg and Salzburg From 1962 until his retirement in 1968, he was a professor at the University of Freiburg, West Germany, where he began work on his next book, Law, Legislation and Liberty. Hayek regarded his years at Freiburg as "very fruitful". Following his retirement, Hayek spent a year as a visiting professor of philosophy at the University of California, Los Angeles, where he continued work on Law, Legislation and Liberty, teaching a graduate seminar by the same name and another on the philosophy of social science. Preliminary drafts of the book were completed by 1970, but Hayek chose to rework his drafts and finally brought the book to publication in three volumes in 1973, 1976 and 1979. Hayek became a professor at the University of Salzburg from 1969 to 1977 and then returned to Freiburg. When Hayek left Salzburg in 1977, he wrote: "I made a mistake in moving to Salzburg". The economics department was small and the library facilities were inadequate. Although Hayek's health suffered, and he fell into a depressionary bout, he continued to work on his magnum opus, Law, Legislation and Liberty in periods when he was feeling better. Nobel Memorial Prize On 9 October 1974, it was announced that Hayek would be awarded the Nobel Memorial Prize in Economics with Swedish economist Gunnar Myrdal, with the reasons for selection being listed in a press release. He was surprised at being given the award and believed that he was given it with Myrdal to balance the award with someone from the opposite side of the political spectrum. The Sveriges-Riksbank Nobel Prize in Economics was established in 1968, and Hayek was the first non-Keynesian economist to win it. Among the reasons given, the committee stated, Hayek "was one of the few economists who gave warning of the possibility of a major economic crisis before the great crash came in the autumn of 1929." The following year, Hayek further confirmed his original prediction. An interviewer asked, "We understand that you were one of the only economists to forecast that America was headed for a depression, is that true?" Hayek responded, "Yes." However, no textual evidence has emerged of "a prediction". Indeed, Hayek wrote in October 26, 1929, three days before the crash, "at present there is no reason to expect a sudden crash of the New York stock exchange. ... The credit possibilities/conditions are, at any rate, currently very great, and therefore it appears assured that an outright crisis-like destruction of the present high [price] level should not be feared." During the Nobel ceremony in December 1974, Hayek met the Russian dissident Aleksandr Solzhenitsyn. Hayek later sent him a Russian translation of The Road to Serfdom. He spoke with apprehension at his award speech about the danger the authority of the prize would lend to an economist, but the prize brought much greater public awareness to the then controversial ideas of Hayek and was described by his biographer as "the great rejuvenating event in his life". British politics In February 1975, Margaret Thatcher was elected leader of the British Conservative Party. The Institute of Economic Affairs arranged a meeting between Hayek and Thatcher in London soon after. During Thatcher's only visit to the Conservative Research Department in the summer of 1975, a speaker had prepared a paper on why the "middle way" was the pragmatic path the Conservative Party should take, avoiding the extremes of left and right. Before he had finished, Thatcher "reached into her briefcase and took out a book. It was Hayek's The Constitution of Liberty. Interrupting our pragmatist, she held the book up for all of us to see. 'This', she said sternly, 'is what we believe', and banged Hayek down on the table". Despite the media depictions of him as Thatcher's guru and power behind the throne, the communication between him and the Prime Minister was not very regular, they were in contact only once or twice a year. Besides Thatcher, Hayek also made a significant influence on Enoch Powell, Keith Joseph, Nigel Lawson, Geoffrey Howe and John Biffen. Hayek gained some controversy in 1978 by praising Thatcher's anti-immigration policy proposal in an article which ignited numerous accusations of anti-Semitism and racism because of his reflections on the inability of assimilation of Eastern European Jews in the Vienna of his youth. He defended himself by explaining that he made no racial judgements, only highlighted the problems of acculturation. In 1977, Hayek was critical of the Lib–Lab pact in which the British Liberal Party agreed to keep the British Labour government in office. Writing to The Times, Hayek said: "May one who has devoted a large part of his life to the study of the history and the principles of liberalism point out that a party that keeps a socialist government in power has lost all title to the name 'Liberal'. Certainly no liberal can in future vote 'Liberal'". Hayek was criticised by Liberal politicians Gladwyn Jebb and Andrew Phillips, who both claimed that the purpose of the pact was to discourage socialist legislation. Lord Gladwyn pointed out that the German Free Democrats were in coalition with the German Social Democrats. Hayek was defended by Professor Antony Flew, who stated that—unlike the British Labour Party—the German Social Democrats had since the late 1950s abandoned public ownership of the means of production, distribution and exchange and had instead embraced the social market economy. In 1978, Hayek came into conflict with Liberal Party leader David Steel, who claimed that liberty was possible only with "social justice and an equitable distribution of wealth and power, which in turn require a degree of active government intervention" and that the Conservative Party were more concerned with the connection between liberty and private enterprise than between liberty and democracy. Hayek claimed that a limited democracy might be better than other forms of limited government at protecting liberty, but that an unlimited democracy was worse than other forms of unlimited government because "its government loses the power even to do what it thinks right if any group on which its majority depends thinks otherwise". Hayek stated that if the Conservative leader had said "that free choice is to be exercised more in the market place than in the ballot box, she has merely uttered the truism that the first is indispensable for individual freedom while the second is not: free choice can at least exist under a dictatorship that can limit itself but not under the government of an unlimited democracy which cannot". Hayek supported Britain in the Falklands War, writing that it would be justified to attack Argentinian territory instead of just defending the islands, which earned him a lot of criticism in Argentina, a country which he also visited several times. He was also displeased by the weak response of the United States to the Iran hostage crisis, claiming that an ultimatum should be issued and Iran bombed if they do not comply. He supported Ronald Reagan's decision to keep high defence spending, believing that a strong US military is a guarantee of world peace and necessary to keep the Soviet Union under control. President Reagan listed Hayek as among the two or three people who most influenced his philosophy and welcomed him to the White House as a special guest. Senator Barry Goldwater listed Hayek as his favourite political philosopher and congressman Jack Kemp named him an inspiration for his political career. Recognition In 1980, Hayek was one of twelve Nobel laureates to meet with Pope John Paul II "to dialogue, discuss views in their fields, communicate regarding the relationship between Catholicism and science, and 'bring to the Pontiff's attention the problems which the Nobel Prize Winners, in their respective fields of study, consider to be the most urgent for contemporary man'" Hayek was appointed a Companion of Honour (CH) in the 1984 Birthday Honours by Elizabeth II on the advice of British Prime Minister Margaret Thatcher for his "services to the study of economics". Hayek had hoped to receive a baronetcy and after being awarded the CH sent a letter to his friends requesting that he be called the English version of Friedrich (i.e. Frederick) from now on. After his twenty-minute audience with the Queen, he was "absolutely besotted" with her according to his daughter-in-law Esca Hayek. Hayek said a year later that he was "amazed by her. That ease and skill, as if she'd known me all my life". The audience with the Queen was followed by a dinner with family and friends at the Institute of Economic Affairs. When later that evening Hayek was dropped off at the Reform Club, he commented: "I've just had the happiest day of my life". In 1991, President George H.W. Bush awarded Hayek the Presidential Medal of Freedom, one of the two highest civilian awards in the United States, for a "lifetime of looking beyond the horizon". Death Hayek died on 23 March 1992, aged 92, in Freiburg, Germany and was buried on 4 April in the Neustift am Walde cemetery in the northern outskirts of Vienna according to the Catholic rite. In 2011, his article "The Use of Knowledge in Society" was selected as one of the top 20 articles published in The American Economic Review during its first 100 years. The New York University Journal of Law and Liberty holds an annual lecture in his honor. Work Business cycle Ludwig von Mises had earlier applied the concept of marginal utility to the value of money in his Theory of Money and Credit (1912) in which he also proposed an explanation for "industrial fluctuations" based on the ideas of the old British Currency School and of Swedish economist Knut Wicksell. Hayek used this body of work as a starting point for his own interpretation of the business cycle, elaborating what later became known as the Austrian theory of the business cycle. Hayek spelled out the Austrian approach in more detail in his book, published in 1929, an English translation of which appeared in 1933 as Monetary Theory and the Trade Cycle. There, Hayek argued for a monetary approach to the origins of the cycle. In his Prices and Production (1931), Hayek argued that the business cycle resulted from the central bank's inflationary credit expansion and its transmission over time, leading to a capital misallocation caused by the artificially low interest rates. Hayek claimed that "the past instability of the market economy is the consequence of the exclusion of the most important regulator of the market mechanism, money, from itself being regulated by the market process". Hayek's analysis was based on Eugen Böhm von Bawerk's concept of the "average period of production" and on the effects that monetary policy could have upon it. In accordance with the reasoning later outlined in his essay "The Use of Knowledge in Society" (1945), Hayek argued that a monopolistic governmental agency like a central bank can neither possess the relevant information which should govern supply of money, nor have the ability to use it correctly. In 1929, Lionel Robbins assumed the helm of the London School of Economics (LSE). Eager to promote alternatives to what he regarded as the narrow approach of the school of economic thought that then dominated the English-speaking academic world (centered at the University of Cambridge and deriving largely from the work of Alfred Marshall), Robbins invited Hayek to join the faculty at LSE, which he did in 1931. According to Nicholas Kaldor, Hayek's theory of the time-structure of capital and of the business cycle initially "fascinated the academic world" and appeared to offer a less "facile and superficial" understanding of macroeconomics than the Cambridge school's. Also in 1931, Hayek crititicized John Maynard Keynes's Treatise on Money (1930) in his "Reflections on the pure theory of Mr. J.M. Keynes" and published his lectures at the LSE in book form as Prices and Production. For Keynes, unemployment and idle resources are caused by a lack of effective demand, but for Hayek they stem from a previous unsustainable episode of easy money and artificially low interest rates. Keynes asked his friend Piero Sraffa to respond. Sraffa elaborated on the effect of inflation-induced "forced savings" on the capital sector and about the definition of a "natural" interest rate in a growing economy (see Sraffa–Hayek debate). Others who responded negatively to Hayek's work on the business cycle included John Hicks, Frank Knight and Gunnar Myrdal, who, later on, would share the Sveriges-Riksbank Prize in Economics with him. Kaldor later wrote that Hayek's Prices and Production had produced "a remarkable crop of critics" and that the total number of pages in British and American journals dedicated to the resulting debate "could rarely have been equalled in the economic controversies of the past". Hayek's work, throughout the 1940s, was largely ignored, except for scathing critiques by Nicholas Kaldor. Lionel Robbins himself, who had embraced the Austrian theory of the business cycle in The Great Depression (1934), later regretted having written the book and accepted many of the Keynesian counter-arguments. Hayek never produced the book-length treatment of "the dynamics of capital" that he had promised in the Pure Theory of Capital. At the University of Chicago, Hayek was not part of the economics department and did not influence the rebirth of neoclassical theory that took place there (see Chicago school of economics). When in 1974 he shared the Nobel Memorial Prize in Economics with Myrdal, the latter complained about being paired with an "ideologue". Milton Friedman declared himself "an enormous admirer of Hayek, but not for his economics. Milton Friedman also commented on some of his writings, saying "I think Prices and Production is a very flawed book. I think his [Pure Theory of Capital] is unreadable. On the other hand, The Road to Serfdom is one of the great books of our time". Economic calculation problem Building on the earlier work of Mises and others, Hayek also argued that while in centrally planned economies an individual or a select group of individuals must determine the distribution of resources, these planners will never have enough information to carry out this allocation reliably. This argument, first proposed by Max Weber and Ludwig von Mises, says that the efficient exchange and use of resources can be maintained only through the price mechanism in free markets (see economic calculation problem). In 1935, Hayek published Collectivist Economic Planning, a collection of essays from an earlier debate that had been initiated by Mises. Hayek included Mises's essay in which Mises argued that rational planning was impossible under socialism. Socialist Oskar Lange responded by invoking general equilibrium theory, which they argued disproved Mises's thesis. They noted that the difference between a planned and a free market system lay in who was responsible for solving the equations. They argued that if some of the prices chosen by socialist managers were wrong, gluts or shortages would appear, signalling them to adjust the prices up or down, just as in a free market. Through such a trial and error, a socialist economy could mimic the efficiency of a free market system while avoiding its many problems. Hayek challenged this vision in a series of contributions. In "Economics and Knowledge" (1937), he pointed out that the standard equilibrium
wrong, gluts or shortages would appear, signalling them to adjust the prices up or down, just as in a free market. Through such a trial and error, a socialist economy could mimic the efficiency of a free market system while avoiding its many problems. Hayek challenged this vision in a series of contributions. In "Economics and Knowledge" (1937), he pointed out that the standard equilibrium theory assumed that all agents have full and correct information, and how, in his mind, in the real world different individuals have different bits of knowledge and furthermore some of what they believe is wrong. In "The Use of Knowledge in Society" (1945), Hayek argued that the price mechanism serves to share and synchronise local and personal knowledge, allowing society's members to achieve diverse and complicated ends through a principle of spontaneous self-organization. He contrasted the use of the price mechanism with central planning, arguing that the former allows for more rapid adaptation to changes in particular circumstances of time and place. Thus, Hayek set the stage for Oliver Williamson's later contrast between markets and hierarchies as alternative co-ordination mechanisms for economic transactions. He used the term catallaxy to describe a "self-organizing system of voluntary co-operation". Hayek's research into this argument was specifically cited by the Nobel Committee in its press release awarding Hayek the Nobel prize. Criticism of collectivism Hayek was one of the leading academic critics of collectivism in the 20th century. In Hayek's view, the central role of the state should be to maintain the rule of law, with as little arbitrary intervention as possible. In his popular book The Road to Serfdom (1944) and in subsequent academic works, Hayek argued that socialism required central economic planning and that such planning in turn leads towards totalitarianism. In The Road to Serfdom, Hayek wrote: Hayek posited that a central planning authority would have to be endowed with powers that would impact and ultimately control social life because the knowledge required for centrally planning an economy is inherently decentralised, and would need to be brought under control. Though Hayek did argue that the state should provide law centrally, others have pointed out that this contradicts his arguments about the role of judges in "discovering" the law, suggesting that Hayek would have supported decentralized provision of legal services. Hayek also wrote that the state can play a role in the economy, specifically in creating a safety net, saying: There is no reason why, in a society which has reached the general level of wealth ours has, the first kind of security should not be guaranteed to all without endangering general freedom; that is: some minimum of food, shelter and clothing, sufficient to preserve health. Nor is there any reason why the state should not help to organize a comprehensive system of social insurance in providing for those common hazards of life against which few can make adequate provision. "The Denationalization of Money" is one of his literary works, in which he advocated the establishment of competitions in issuing moneys. Investment and choice Hayek made breakthroughs in the choice theory, and examined the inter-relations between non-permanent production goods and "latent" or potentially economic permanent resources, building on the choice theoretical insight that "processes that take more time will evidently not be adopted unless they yield a greater return than those that take less time". Philosophy of science During World War II, Hayek began the Abuse of Reason project. His goal was to show how a number of then-popular doctrines and beliefs had a common origin in some fundamental misconceptions about the social science. Ideas were developed in The Counter-Revolution of Science in 1952 and in some of Hayek's later essays in the philosophy of science such as "Degrees of Explanation" (1955) and "The Theory of Complex Phenomena" (1964). In Counter-Revolution, for example, Hayek observed that the hard sciences attempt to remove the "human factor" to obtain objective and strictly controlled results: Meanwhile, the soft sciences are attempting to measure human action itself: He notes that these are mutually exclusive and that social sciences should not attempt to impose positivist methodology, nor to claim objective or definite results: Psychology Hayek's first academic essay was a psychological work titled 'Contributions to the Theory of the Development of Consciousness' (Beiträge zur Theorie der Entwicklung des Bewußtseins) In The Sensory Order: An Inquiry into the Foundations of Theoretical Psychology (1952), Hayek independently developed a "Hebbian learning" model of learning and memory—an idea he first conceived in 1920 prior to his study of economics. Hayek's expansion of the "Hebbian synapse" construction into a global brain theory received attention in neuroscience, cognitive science, computer science, and evolutionary psychology by scientists such as Gerald Edelman, Vittorio Guidano and Joaquin Fuster. The Sensory Order can be viewed as a development of his attack on scientism. Hayek posited two orders, namely the sensory order that we experience and the natural order that natural science revealed. Hayek thought that the sensory order actually is a product of the brain. He described the brain as a very complex yet self-ordering hierarchical classification system, a huge network of connections. Because of the nature of the classifier system, richness of our sensory experience can exist. Hayek's description posed problems to behaviorism, whose proponents took the sensory order as fundamental. Social and political philosophy In the latter half of his career, Hayek made a number of contributions to social and political philosophy which he based on his views on the limits of human knowledge and the idea of spontaneous order in social institutions. He argues in favour of a society organised around a market order in which the apparatus of state is employed almost (though not entirely) exclusively to enforce the legal order (consisting of abstract rules and not particular commands) necessary for a market of free individuals to function. These ideas were informed by a moral philosophy derived from epistemological concerns regarding the inherent limits of human knowledge. Hayek argued that his ideal individualistic and free-market polity would be self-regulating to such a degree that it would be "a society which does not depend for its functioning on our finding good men for running it". Although Hayek believed in a society governed by laws, he disapproved of the notion of "social justice". He compared the market to a game in which "there is no point in calling the outcome just or unjust" and argued that "social justice is an empty phrase with no determinable content". Likewise, "the results of the individual's efforts are necessarily unpredictable, and the question as to whether the resulting distribution of incomes is just has no meaning". He generally regarded government redistribution of income or capital as an unacceptable intrusion upon individual freedom, saying that "the principle of distributive justice, once introduced, would not be fulfilled until the whole of society was organized in accordance with it. This would produce a kind of society which in all essential respects would be the opposite of a free society". Spontaneous order Hayek viewed the free price system not as a conscious invention (that which is intentionally designed by man), but as spontaneous order or what Scottish philosopher Adam Ferguson referred to as "the result of human action but not of human design". For instance, Hayek put the price mechanism on the same level as language, which he developed in his price signal theory. Hayek attributed the birth of civilisation to private property in his book The Fatal Conceit (1988). He explained that price signals are the only means of enabling each economic decision maker to communicate tacit knowledge or dispersed knowledge to each other to solve the economic calculation problem. Alain de Benoist of the Nouvelle Droite (New Right) produced a highly critical essay on Hayek's work in an issue of Telos, citing the flawed assumptions behind Hayek's idea of "spontaneous order" and the authoritarian and totalising implications of his free-market ideology. Hayek's concept of the market as a spontaneous order was recently applied to ecosystems to defend a broadly non-interventionist policy. Like the market, ecosystems contain complex networks of information, involve an ongoing dynamic process, contain orders within orders and the entire system operates without being directed by a conscious mind. On this analysis, species takes the place of price as a visible element of the system formed by a complex set of largely unknowable elements. Human ignorance about the countless interactions between the organisms of an ecosystem limits our ability to manipulate nature. Hayek's price signal concept is in relation to how consumers are often unaware of specific events that change market, yet change their decisions, simply because the price goes up. Thus pricing communicates information. Social safety nets With regard to a social safety net, Hayek advocated "some provision for those threatened by the extremes of indigence or starvation due to circumstances beyond their control" and argued that the "necessity of some such arrangement in an industrial society is unquestioned—be it only in the interest of those who require protection against acts of desperation on the part of the needy". Summarizing Hayek's views on the topic, journalist Nicholas Wapshott has argued that "[Hayek] advocated mandatory universal health care and unemployment insurance, enforced, if not directly provided, by the state". Critical theorist Bernard Harcourt has argued further that "Hayek was adamant about this". In 1944, Hayek wrote in The Road to Serfdom: In 1973, Hayek reiterated in Law, Legislation and Liberty: There is no reason why in a free society government should not assure to all, protection against severe deprivation in the form of an assured minimum income, or a floor below which nobody need to descend. To enter into such an insurance against extreme misfortune may well be in the interest of all; or it may be felt to be a clear moral duty of all to assist, within the organised community, those who cannot help themselves. So long as such a uniform minimum income is provided outside the market to all those who, for any reason, are unable to earn in the market an adequate maintenance, this need not lead to a restriction of freedom, or conflict with the Rule of law. Liberalism and skepticism Arthur M. Diamond argues Hayek's problems arise when he goes beyond claims that can be evaluated within economic science. Diamond argued: The human mind, Hayek says, is not just limited in its ability to synthesize a vast array of concrete facts, it is also limited in its ability to give a deductively sound ground to ethics. Here is where the tension develops, for he also wants to give a reasoned moral defense of the free market. He is an intellectual skeptic who wants to give political philosophy a secure intellectual foundation. It is thus not too surprising that what results is confused and contradictory. Chandran Kukathas argues that Hayek's defence of liberalism is unsuccessful because it rests on presuppositions that are incompatible. The unresolved dilemma of his political philosophy is how to mount a systematic defence of liberalism if one emphasizes the limited capacity of reason. Norman P. Barry similarly notes that the "critical rationalism" in Hayek's writings appears incompatible with "a certain kind of fatalism, that we must wait for evolution to pronounce its verdict". Milton Friedman and Anna Schwartz argue that the element of paradox exists in the views of Hayek. Noting Hayek's vigorous defense of "invisible hand" evolution that Hayek claimed created better economic institutions than could be created by rational design, Friedman pointed out the irony that Hayek was then proposing to replace the monetary system thus created with a deliberate construct of his own design. John N. Gray summarized this view as "his scheme for an ultra-liberal constitution was a prototypical version of the philosophy he had attacked". Bruce Caldwell wrote that "[i]f one is judging his work against the standard of whether he provided a finished political philosophy, Hayek clearly did not succeed", although he thinks that "economists may find Hayek's political writings useful". Dictatorship and totalitarianism Hayek sent António de Oliveira Salazar a copy of The Constitution of Liberty (1960) in 1962. Hayek hoped that his book—this "preliminary sketch of new constitutional principles"—"may assist" Salazar "in his endeavour to design a constitution which is proof against the abuses of democracy". Hayek visited Chile in the 1970s and 1980s during the Government Junta of general Augusto Pinochet and accepted being appointed Honorary Chairman of the Centro de Estudios Públicos, the think tank formed by the economists who transformed Chile into a free market economy. Asked about the military dictatorship of Chile by a Chilean interviewer, Hayek is translated from German to Spanish to English as having said the following: As long term institutions, I am totally against dictatorships. But a dictatorship may be a necessary system for a transitional period. [...] Personally I prefer a liberal dictatorship to democratic government devoid of liberalism. My personal impression—and this is valid for South America—is that in Chile, for example, we will witness a transition from a dictatorial government to a liberal government. In a letter to the London Times, he defended the Pinochet regime and said that he had "not been able to find a single person even in much maligned Chile who did not agree that personal freedom was much greater under Pinochet than it had been under Allende". Hayek admitted that "it is not very likely that this will succeed, even if, at a particular point in time, it may be the only hope there is", but he explained that "[i]t is not certain hope, because it will always depend on the goodwill of an individual, and there are very few individuals one can trust. But if it is the sole opportunity which exists at a particular moment it may be the best solution despite this. And only if and when the dictatorial government is visibly directing its steps towards limited democracy". For Hayek, the distinction between authoritarianism and totalitarianism has much importance and he was at pains to emphasise his opposition to totalitarianism, noting that the concept of transitional dictatorship which he defended was characterised by authoritarianism, not totalitarianism. For example, when Hayek visited Venezuela in May 1981, he was asked to comment on the prevalence of totalitarian regimes in Latin America. In reply, Hayek warned against confusing "totalitarianism with authoritarianism" and said that he was unaware of "any totalitarian governments in Latin America. The only one was Chile under Allende". For Hayek, the word "totalitarian" signifies something very specific, namely the intention to "organize the whole of society" to attain a "definite social goal" which is stark in contrast to "liberalism and individualism". He claimed that democracy can also be repressive and totalitarian; in The Constitution of Liberty he often refers to Jacob Talmon's concept of totalitarian democracy. Immigration, nationalism and race Hayek was skeptical about international immigration and supported Thatcher's anti-immigration policies. In Law, Legislation and Liberty he elaborated: Freedom of migration is one of the widely accepted and wholly admirable principles of liberalism. But should this generally give the stranger a right to settle down in a community in which he is not welcome? Has he a claim to be given a job or be sold a house if no resident is willing to do so? He clearly should be entitled to accept a job or buy a house if offered to him. But have the individual inhabitants a duty to offer either to him? Or ought it to be an offence if they voluntarily agree not to do so? Swiss and Tyrolese villages have a way of keeping out strangers which neither infringe nor rely on any law. Is this anti-liberal or morally justified? For established old communities I have no certain answers to these questions. He was mainly preoccupied with practical problems concerning immigration: There exist, of course, other reasons why such restrictions appear unavoidable so long as certain differences in national or ethnic traditions (especially differences in the rate of propagation) exist-which in turn are not likely to disappear so long as restrictions on migration continue. We must face the fact that we here encounter a limit to the universal application of those liberal principles of policy which the existing facts of the present world make unavoidable. He was not sympathetic to nationalist ideas and was afraid that mass immigration might revive nationalist sentiment among domestic population and ruin the postwar progress that was made among Western nations. He additionally explained: However far modern man accepts in principle the ideal that the same rules should apply to all men, in fact he does concede it only to those whom he regards as similar to himself, and only slowly learns to extend the range of those he does accept as his likes. There is little legislation can do to speed up this process and much it may do to reverse it by re-awakening sentiments that are already on the wane. Despite his opposition to nationalism, Hayek made numerous controversial and inflammatory comments about specific ethnic groups. Answering an interview question about people he cannot deal with he mentioned his dislike of Middle Eastern populations, claiming they were dishonest, and also expressed "profound dislike" of Indian students at London School of Economics, saying that were usually "detestable sons of Bengali moneylenders". He claimed that his attitude is not based on any racial feeling. During World War II he discussed the possibility of sending his children to the United States, but was concerned that they might be placed with a "coloured family". In a later interview, questioned about his attitude towards Black people, he said laconically that he "did not like dancing Negroes" and on another occasion he ridiculed the decision to award the Nobel Peace Prize to Martin Luther King Jr.. He also made negative comments about awarding the Prize to Ralph Bunche, Albert Luthuli, and his LSE colleague W. Arthur Lewis who he described as an "unusually able West Indian negro". In 1978 Hayek made a month-long visit to South Africa (his third) where he gave numerous lectures, interviews, and met prominent politicians and business leaders, unconcerned about possible propagandistic effect of his tour for Apartheid regime. He expressed his opposition to some of the government policies, believing that publicly funded institutions should treat all citizens equally, but also claimed that private institutions have the right to discriminate. Additionally, he condemned the "scandalous" hostility and interference of the international community in South African internal affairs. He further explained his attitude: People in South Africa have to deal with their own problems, and the idea that you can use external pressure to change people, who after all have built up a civilization of a kind, seems to me morally a very doubtful belief. While Hayek gave somewhat ambiguous comments on the injustices of Apartheid and proper role of the state, some of his Mont Pelerin colleagues, such as John Davenport and Wilhelm Röpke, were more ardent supporters of South African government and criticized Hayek for being too soft on the subject. Inequality and class Hayek claimed that the idea that "all men are born equal" is untrue because evolution and genetic differences have created "boundless variety of human nature". He emphasized the importance of nature, complaining that it became too fashionable to ascribe all human differences to environment. Hayek defended economic inequality, believing that the existence of wealthy class is important not only for economic reasons—accumulating capital and directing investments—but also for political, cultural, scientific and conservationist goals which
manager for the development of the IBM System/360 family of computers and the OS/360 software package. During this time he coined the term "computer architecture". In 1964, Brooks accepted an invitation to come to the University of North Carolina at Chapel Hill and founded the University's computer science department. He chaired it for 20 years. he was still engaged in active research there, primarily in virtual environments and scientific visualization. A few years after leaving IBM he wrote The Mythical Man-Month. The seed for the book was planted by IBM's then-CEO Thomas Watson Jr., who asked in Brooks's exit interview why it was so much harder to manage software projects than hardware projects. In this book, Brooks made the now-famous statement: "Adding manpower to a late software project makes it later." This has since come to be known as Brooks's law. In addition to The Mythical Man-Month, Brooks is also known for the paper No Silver Bullet – Essence and Accident in Software Engineering. In 2004 in a talk at the Computer History Museum and also in a 2010 interview in Wired magazine, Brooks was asked "What do you consider your greatest technological achievement?" Brooks responded, "The most important single decision I ever made was to change the IBM 360 series from a 6-bit byte to an 8-bit byte, thereby enabling the use of lowercase letters. That change propagated everywhere." A "20th anniversary" edition of The Mythical Man-Month with four additional chapters was published in 1995. As well as The Mythical Man-Month, Brooks has authored or co-authored many books and peer reviewed papers including Automatic Data Processing, No Silver Bullet, Computer Architecture, and The Design of Design. His contributions to human–computer interaction are described in Ben Shneiderman's HCI pioneers website. Service and memberships Brooks has served on a number of US national boards and committees. Defense Science Board (1983–86) Member, Artificial Intelligence Task Force (1983–84) Chairman, Military Software Task Force (1985–87) Member, Computers in Simulation and Training Task Force (1986–87) National Science Board (1987–92) Awards and honors In chronological order: Fellow, Institute of Electrical and Electronic Engineers (1968) W. Wallace McDowell Award for Outstanding Contribution to the Computer Art, IEEE Computer Group (1970) Computer Sciences Distinguished Information Services Award, Information Technology Professionals (1970) Guggenheim Fellowship for studies on computer architecture and human factors of computer systems, University of Cambridge, England (1975) Member,
to the University of North Carolina at Chapel Hill and founded the University's computer science department. He chaired it for 20 years. he was still engaged in active research there, primarily in virtual environments and scientific visualization. A few years after leaving IBM he wrote The Mythical Man-Month. The seed for the book was planted by IBM's then-CEO Thomas Watson Jr., who asked in Brooks's exit interview why it was so much harder to manage software projects than hardware projects. In this book, Brooks made the now-famous statement: "Adding manpower to a late software project makes it later." This has since come to be known as Brooks's law. In addition to The Mythical Man-Month, Brooks is also known for the paper No Silver Bullet – Essence and Accident in Software Engineering. In 2004 in a talk at the Computer History Museum and also in a 2010 interview in Wired magazine, Brooks was asked "What do you consider your greatest technological achievement?" Brooks responded, "The most important single decision I ever made was to change the IBM 360 series from a 6-bit byte to an 8-bit byte, thereby enabling the use of lowercase letters. That change propagated everywhere." A "20th anniversary" edition of The Mythical Man-Month with four additional chapters was published in 1995. As well as The Mythical Man-Month, Brooks has authored or co-authored many books and peer reviewed papers including Automatic Data Processing, No Silver Bullet, Computer Architecture, and The Design of Design. His contributions to human–computer interaction are described in Ben Shneiderman's HCI pioneers website. Service and memberships Brooks has served on a number of US national boards and committees. Defense Science Board (1983–86) Member, Artificial Intelligence Task Force (1983–84) Chairman, Military Software Task Force (1985–87) Member, Computers in Simulation and Training Task Force (1986–87) National Science Board (1987–92) Awards and honors In chronological order: Fellow, Institute of Electrical and Electronic Engineers (1968) W. Wallace McDowell Award for Outstanding Contribution to the Computer Art, IEEE Computer Group (1970) Computer Sciences Distinguished Information Services Award, Information Technology Professionals (1970) Guggenheim Fellowship for studies on computer architecture and human factors of computer systems, University of Cambridge, England (1975) Member, National Academy of Engineering (1976) Fellow, American Academy of Arts and Sciences (1976) Computer Pioneer Award, IEEE Computer Society (1982) National Medal of Technology and Innovation (1985) Thomas Jefferson Award, University of North Carolina at Chapel Hill (1986) Distinguished Service Award, Association
brief or trivial item of news or information. Usage The term was coined by American writer Norman Mailer in his 1973 biography of Marilyn Monroe. Mailer described factoids as "facts which have no existence before appearing in a magazine or newspaper", and formed the word by combining the word fact and the ending -oid to mean "similar but not the same". The Washington Times described Mailer's new word as referring to "something that looks like a fact, could be a fact, but in fact is not a fact". Accordingly, factoids may give rise to, or arise from, common misconceptions and urban legends. Several decades after the term was coined by Mailer, it came to have several meanings, some of which are quite distinct from each other. In 1993, William Safire identified several contrasting senses of factoid: "factoid: accusatory: misinformation purporting to be factual; or, a phony statistic." "factoid: neutral: seemingly though not necessarily factual" "factoid: (the CNN version): a little-known bit of information; trivial but interesting data." This new sense of a factoid as a trivial but interesting fact was popularized by the CNN Headline News TV channel, which, during the 1980s and 1990s, often included such a fact under the heading "factoid" during newscasts. BBC Radio 2 presenter Steve Wright uses factoids extensively on his show. Versus factlet As a result of
CNN version): a little-known bit of information; trivial but interesting data." This new sense of a factoid as a trivial but interesting fact was popularized by the CNN Headline News TV channel, which, during the 1980s and 1990s, often included such a fact under the heading "factoid" during newscasts. BBC Radio 2 presenter Steve Wright uses factoids extensively on his show. Versus factlet As a result of confusion over the meaning of factoid, some English-language style and usage guides discourage its use. William Safire in his "On Language" column advocated the use of the word factlet instead of factoid to express a brief interesting fact as well as a "little bit of arcana" but did not explain how adopting this new term would alleviate the ongoing confusion over the existing contradictory common use meanings of factoid. Safire suggested that factlet be used to designate a small or trivial bit of information that is nonetheless true or accurate. A report in The Guardian identified Safire as the writer who coined the term factlet, although Safire's 1993 column suggested factlet was already in use at that time. The Atlantic magazine
this was most likely a first inversion dominant chord (spelled B–D–G, from bottom note of the chord to the top). Composers were inconsistent in the usages described below. Especially in the 17th century, the numbers were omitted whenever the composer thought the chord was obvious. Early composers such as Claudio Monteverdi often specified the octave by the use of compound intervals such as 10, 11, and 15. Numbers Contemporary figured bass abbreviations for triads and seventh chords are shown in the table to the right. The numbers indicate the number of scale steps above the given bass-line that a note should be played. For example: Here, the bass note is a C, and the numbers 4 and 6 indicate that notes a fourth and a sixth above it should be played, that is an F and an A. In other words, the second inversion of an F major chord can be realized as: In cases where the numbers 3 or 5 would normally be understood, these are usually left out. For example: has the same meaning as and can be realized as although the performer may choose which octave to play the notes in and will often elaborate them in some way, such as by playing them as arpeggios rather than as block chords, or by adding improvised ornaments, depending on the tempo and texture of the music. Sometimes, other numbers are omitted: a 2 on its own or indicates , for example. From the figured bass-writer's perspective, this bass note is obviously a third inversion seventh chord, so the sixth interval is viewed as an interval that the player should automatically infer. In many cases entire figures can be left out, usually where the chord is obvious from the progression or the melody. Sometimes the chord changes but the bass note itself is held. In these cases the figures for the new chord are written wherever in the bar they are meant to occur. can be realized as When the bass note changes but the notes in the chord above it are to be held, a line is drawn next to the figure or figures, for as long as the chord is to be held, to indicate this: can be realized as Note that when the bass moves the chord intervals have effectively changed, in this case from to , but no additional numbers are written. Accidentals When an accidental is shown on its own without a number, it applies to the note a third above the lowest note; most commonly, this is the third of the chord. Otherwise, if a number is shown, the accidental affects the said interval. For example, this, showing the widespread default meaning of an accidental without number as applying to the third above the bass: can be realized as Sometimes the accidental is placed after the number rather than before it. Alternatively, a cross placed next to a number indicates that the pitch of that note should be raised (augmented) by a semitone (so that if it is normally a flat it becomes a natural, and if it is normally a natural it becomes a sharp). A different way to indicate this is to draw a backslash through the number itself. The following three notations, therefore, all indicate the same thing: can all be realized as More rarely, a forward slash through a number indicates that a pitch is to be lowered (diminished) by a semitone: can both be realized as When sharps or flats are used with key signatures, they may have a slightly different meaning, especially in 17th-century music. A sharp might be used to cancel a flat in the key signature, or vice versa, instead of a natural sign. Example in context Contemporary uses In the 20th and 21st century, figured bass is also sometimes used by classical musicians as a shorthand way of indicating chords when a composer is sketching out ideas for a new piece or when a music student is analyzing the harmony of a notated piece of music (e.g., a Bach chorale or a Chopin piano prelude). Figured bass is not generally used in modern musical compositions, except for neo-Baroque pieces. A form of figured bass is used in notation of accordion music; another simplified form is used to notate guitar chords. In the 2000s, outside of professional Baroque ensembles that specialize in the performance practice of the Baroque era, the most common use of figured bass notation is to indicate the inversion in a harmonic analysis or composer's sketch context, however, often without the staff notation, using letter note names followed with the figure. For instance, if a piano piece had a C major triad in the right hand (C–E–G), with the bass note a G with the left hand, this would be a second inversion C major chord, which would be written G. If this same C major triad had an E in the bass, it would be a first inversion chord, which would be written E or E (this is different from the jazz notation, where a C means the major sixth chord C–E–G–A, i.e., a C major
and organ and cello for sacred music. A double bass may be added, particularly when accompanying a lower-pitched solo voice (e.g., a bass singer). Typically performers match the instrument families used in the full ensemble: including bassoon when the work includes oboes or other winds, but restricting it to cello and/or double bass if only strings are involved. Harps, lutes, and other handheld instruments are more typical of early 17th-century music. Sometimes instruments are specified by the composer: in L'Orfeo (1607) Monteverdi calls for an exceptionally varied instrumentation, with multiple harpsichords and lutes with a bass violin in the pastoral scenes followed by lamenting to the accompaniment of organo di legno and chitarrone, while Charon stands watch to the sound of a regal. The keyboard (or other chord-playing instrument) player realizes (adds in an improvised fashion) a continuo part by playing, in addition to the notated bass line, notes above it to complete chords, either determined ahead of time or improvised in performance. The figured bass notation, described below, is a guide, but performers are also expected to use their musical judgment and the other instruments or voices (notably the lead melody and any accidentals that might be present in it) as a guide. Experienced players sometimes incorporate motives found in the other instrumental parts into their improvised chordal accompaniment. Modern editions of such music usually supply a realized keyboard part, fully written out in staff notation for a player, in place of improvisation. With the rise in historically informed performance, however, the number of performers who are able to improvise their parts from the figures, as Baroque players would have done, has increased. Basso continuo, though an essential structural and identifying element of the Baroque period, rapidly declined in the classical period (up to around 1800). A late example is C. P. E. Bach's Concerto in D minor for flute, strings and basso continuo (1747). Examples of its use in the 19th century are rarer, but they do exist: masses by Anton Bruckner, Beethoven, and Franz Schubert, for example, have a basso continuo part that was for an organist. Figured bass notation A part notated with figured bass consists of a bass line notated with notes on a musical staff plus added numbers and accidentals (or in some cases (back)slashes added to a number) beneath the staff to indicate what intervals above the bass notes should be played, and therefore which inversions of which chords are to be played. The phrase tasto solo indicates that only the bass line (without any upper chords) is to be played for a short period, usually until the next figure is encountered. This instructs the chord-playing instrumentalist not to play any improvised chords for a period. The reason tasto solo had to be specified was because it was an accepted convention that if no figures were present in a section of otherwise figured bass
clothing, cosmetics and various other goods by half. Among the changes – easier tax refunds for overseas shoppers and accelerated openings of more duty-free shops in cities covered by the 72-hour visa scheme. The 72-hour visa was introduced in Beijing and Shanghai in January 2013 and has been extended to 18 Chinese cities. According to reports at the same time, Chinese consumer spending in other countries such as Japan has slowed even though the yen has dropped. There is clearly a trend in the next 5 years that the domestic fashion market will show an increase. China is an interesting market for fashion retail as Chinese consumers' motivation to shop for fashion items are unique from Western Audiences. Demographics have limited association with shopping motivation, with occupation, income and education level having no impact; unlike in Western Countries. Chinese high-street shoppers prefer adventure and social shopping, while online shoppers are motivated by idea shopping. Another difference is how gratification and idea shopping influence spending over ¥1k per month on fashion items, and regular spending influenced by value shopping. Marketing Market research Consumers of different groups have varying needs and demands. Factors taken into consideration when thinking of consumers' needs include key demographics. To understand consumers' needs and predict fashion trends, fashion companies have to do market research There are two research methods: primary and secondary. Secondary methods are taking other information that has already been collected, for example using a book or an article for research. Primary research is collecting data through surveys, interviews, observation, and/or focus groups. Primary research often focuses on large sample sizes to determine customer's motivations to shop. The benefits of primary research are specific information about a fashion brand's consumer is explored. Surveys are helpful tools; questions can be open-ended or closed-ended. Negative factor surveys and interviews present is that the answers can be biased, due to wording in the survey or on face-to-face interactions. Focus groups, about 8 to 12 people, can be beneficial because several points can be addressed in depth. However, there are drawbacks to this tactic, too. With such a small sample size, it is hard to know if the greater public would react the same way as the focus group. Observation can really help a company gain insight on what a consumer truly wants. There is less of a bias because consumers are just performing their daily tasks, not necessarily realizing they are being observed. For example, observing the public by taking street style photos of people, the consumer did not get dressed in the morning knowing that would have their photo taken necessarily. They just wear what they would normally wear. Through observation patterns can be seen, helping trend forecasters know what their target market needs and wants. Knowing the needs of consumers will increase fashion companies' sales and profits. Through research and studying the consumers' lives the needs of the customer can be obtained and help fashion brands know what trends the consumers are ready for. Symbolic consumption Consumption is driven not only by need, the symbolic meaning for consumers is also a factor. Consumers engaging in symbolic consumption may develop a sense of self over an extended period of time as various objects are collected as part of the process of establishing their identity and, when the symbolic meaning is shared in a social group, to communicate their identity to others. For teenagers, consumption plays a role in distinguishing the child self from the adult. Researchers have found that the fashion choices of teenagers are used for self-expression and also to recognize other teens who wear similar clothes. The symbolic association of clothing items can link individuals' personality and interests, with music as a prominent factor influencing fashion decisions. Political influences Political figures have played a central role in the development of fashion, at least since the time of French king Louis XIV. For example, First Lady Jacqueline Kennedy was a fashion icon of the early 1960s. Wearing Chanel suits, structural Givenchy shift dresses, and soft color Cassini coats with large buttons, she inspired trends of both elegant formal dressing and classic feminine style. Cultural upheavals have also had an impact on fashion trends. For example, during the 1960s, the U.S. economy was robust, the divorce rate was increasing, and the government approved the birth control pill. These factors inspired the younger generation to rebel against entrenched social norms. The civil rights movement, a struggle for social justice and equal opportunity for Blacks, and the women's liberation movement, seeking equal rights and opportunities and greater personal freedom for women, were in full bloom. In 1964, the leg-baring mini-skirt was introduced and became a white-hot trend. Fashion designers then began to experiment with the shapes of garments: loose sleeveless dresses, micro-minis, flared skirts, and trumpet sleeves. Fluorescent colors, print patterns, bell-bottom jeans, fringed vests, and skirts became de rigueur outfits of the 1960s. Concern and protest over U.S involvement in the failing Vietnam War also influenced fashion . Camouflage patterns in military clothing, developed to help military personnel be less visible to enemy forces, seeped into streetwear designs in the 1960s. Camouflage trends have disappeared and resurfaced several times since then, appearing in high fashion iterations in the 1990s. Designers such as Valentino, Dior, and Dolce & Gabbana combined camouflage into their runway and ready-to-wear collections. Today, variations of camouflage, including pastel shades, in every article of clothing or accessory, continue to enjoy popularity. Technology influences Today, technology plays a sizable role in society, and technological influences are correspondingly increasing within the realm of fashion. Wearable technology has become incorporated; for example, clothing constructed with solar panels that charge devices and smart fabrics that enhance wearer comfort by changing color or texture based on environmental changes. 3D printing technology has influenced designers such as Iris van Herpen and Kimberly Ovitz. As the technology evolves, 3D printers will become more accessible to designers and eventually, consumers — these could potentially reshape design and production in the fashion industry entirely. Internet technology, enabling the far reaches of online retailers and social media platforms, has created previously unimaginable ways for trends to be identified, marketed, and sold immediately. Trend-setting styles are easily displayed and communicated online to attract customers. Posts on Instagram or Facebook can quickly increase awareness about new trends in fashion, which subsequently may create high demand for specific items or brands, new "buy now button" technology can link these styles with direct sales. Machine vision technology has been developed to track how fashions spread through society. The industry can now see the direct correlation on how fashion shows influence street-chic outfits. Effects such as these can now be quantified and provide valuable feedback to fashion houses, designers, and consumers regarding trends. Media The media plays a significant role when it comes to fashion. For instance, an important part of fashion is fashion journalism. Editorial critique, guidelines, and commentary can be found on television and in magazines, newspapers, fashion websites, social networks, and fashion blogs. In recent years, fashion blogging and YouTube videos have become a major outlet for spreading trends and fashion tips, creating an online culture of sharing one's style on a website or social media accounts (like instagram, tiktok, or twitter). Through these media outlets, readers and viewers all over the world can learn about fashion, making it very accessible. In addition to fashion journalism, another media platform that is important in fashion industry is advertisement. Advertisements provide information to audiences and promote the sales of products and services. The fashion industry utilizes advertisements to attract consumers and promote its products to generate sales. A few decades ago when technology was still underdeveloped, advertisements heavily relied on radio, magazines, billboards, and newspapers. These days, there are more various ways in advertisements such as television ads, online-based ads using internet websites, and posts, videos, and live streaming in social media platforms. Fashion in printed media There are two subsets of print styling: editorial and lifestyle. Editorial styling is the high - fashion styling seen in fashion magazines, and this tends to be more artistic and fashion-forward. Lifestyle styling focuses on a more overtly commercial goal, like a department store advertisement, a website, or an advertisement where fashion is not what's being sold but the models hired to promote the product in the photo. The dressing practices of the powerful have traditionally been mediated through art and the practices of the courts. The looks of the French court were disseminated through prints from the 16th century on, but gained cohesive design with the development of a centralized court under King Louis XIV, which produced an identifiable style that took his name. At the beginning of the 20th century, fashion magazines began to include photographs of various fashion designs and became even more influential than in the past. In cities throughout the world these magazines were greatly sought after and had a profound effect on public taste in clothing. Talented illustrators drew exquisite fashion plates for the publications which covered the most recent developments in fashion and beauty. Perhaps the most famous of these magazines was La Gazette du Bon Ton, which was founded in 1912 by Lucien Vogel and regularly published until 1925 (with the exception of the war years). Vogue, founded in the United States in 1892, has been the longest-lasting and most successful of the hundreds of fashion magazines that have come and gone. Increasing affluence after World War II and, most importantly, the advent of cheap color printing in the 1960s, led to a huge boost in its sales and heavy coverage of fashion in mainstream women's magazines, followed by men's magazines in the 1990s. One such example of Vogue'''s popularity is the younger version, Teen Vogue, which covers clothing and trends that are targeted more toward the "fashionista on a budget". Haute couture designers followed the trend by starting ready-to-wear and perfume lines which are heavily advertised in the magazines and now dwarf their original couture businesses. A recent development within fashion print media is the rise of text-based and critical magazines which aim to prove that fashion is not superficial, by creating a dialogue between fashion academia and the industry. Examples of this development are: Fashion Theory (1997), Fashion Practice: The Journal of Design, Creative Process & the Fashion Industry (2008), and Vestoj (2009). Fashion in television Television coverage began in the 1950s with small fashion features. In the 1960s and 1970s, fashion segments on various entertainment shows became more frequent, and by the 1980s, dedicated fashion shows such as Fashion Television started to appear. FashionTV was the pioneer in this undertaking and has since grown to become the leader in both Fashion Television and new media channels. The Fashion Industry is beginning to promote their styles through Bloggers on social media's. Vogue specified Chiara Ferragni as "blogger of the moment" due to the rises of followers through her Fashion Blog, that became popular. A few days after the 2010 Fall Fashion Week in New York City came to a close, The New Islander's Fashion Editor, Genevieve Tax, criticized the fashion industry for running on a seasonal schedule of its own, largely at the expense of real-world consumers. "Because designers release their fall collections in the spring and their spring collections in the fall, fashion magazines such as Vogue always and only look forward to the upcoming season, promoting parkas come September while issuing reviews on shorts in January", she writes. "Savvy shoppers, consequently, have been conditioned to be extremely, perhaps impractically, farsighted with their buying." The fashion industry has been the subject of numerous films and television shows, including the reality show Project Runway and the drama series Ugly Betty. Specific fashion brands have been featured in film, not only as product placement opportunities, but as bespoke items that have subsequently led to trends in fashion. Videos in general have been very useful in promoting the fashion industry. This is evident not only from television shows directly spotlighting the fashion industry, but also movies, events and music videos which showcase fashion statements as well as promote specific brands through product placements. Controversial advertisements in fashion industry Racism in fashion advertisements Some fashion advertisements have been accused of racism and led to boycotts from customers. Globally known Swedish fashion brand H&M faced this issue with one of its children's wear advertisements in 2018. A Black child wearing a hoodie with the slogan "coolest monkey in the jungle" was featured in the ad. This immediately led to controversy, as "monkey" is commonly used as slur against Black people, and caused many customers to boycott the brand. Many people, including celebrities, posted on social media about their resentments towards H&M and refusal to work with and buy its products. H&M issued a statement saying "we apologise to anyone this may have offended", though this too received some criticism for appearing insincere. Another fashion advertisement seen as racist was from GAP, an American worldwide clothing brand. GAP collaborated with Ellen DeGeneres in 2016 for the advertisement. It features four playful young girls, with a tall White girl leaning with her arm on a shorter Black girl's head. Upon release, some viewers harshly criticized it, claiming it shows an underlying passive racism. A representative from The Root commented that the ad portrays the message that Black people are undervalued and seen as props for White people to look better. Others saw little issue with the ad, and that the controversy was the result of people being oversensitive. GAP replaced the image in the ad and apologized to critics. Sexism in fashion advertisements Many fashion brands have published ads that were provocative and sexy to attract customers’ attention. British high fashion brand, Jimmy Choo, was blamed for having sexism in its ad which featured a female British model wearing the brand's boots. In this two-minute ad, men whistle at a model, walking on the street with red, sleeveless mini dress. This ad gained much backlash and criticism by the viewers, as it was seen as promoting sexual harassment and other misconduct. Many people showed their dismay through social media posts, leading Jimmy Choo to pull down the ad from social media platforms. French luxury fashion brand Yves Saint Laurent also faced this issue with its print ad shown in Paris in 2017. The ad depicted a female model wearing fishnet tights with roller-skate stilettos reclining with her legs opened in front of the camera. This advertisement brought harsh comments from both viewers and French advertising organization directors for going against the advertising codes related to "respect for decency, dignity and those prohibiting submission, violence or dependence, as well as the use of stereotypes." and additionally said that this ad was causing "mental harm to adolescents." Due to the negative public reaction, the poster was removed from the city. Public relations and social media Fashion public relations involves being in touch with a company's audiences and creating strong relationships with them, reaching out to media, and initiating messages that project positive images of the company. Social media plays an important role in modern-day fashion public relations; enabling practitioners to reach a wide range of consumers through various platforms. Building brand awareness and credibility is a key implication of good public relations. In some cases, the hype is built about new designers' collections before they are released into the market, due to the immense exposure generated by practitioners. Social media, such as blogs, microblogs, podcasts, photo and video sharing sites have all become increasingly important to fashion public relations. The interactive nature of these platforms allows practitioners to engage and communicate with the public in real-time, and tailor their clients' brand or campaign messages to the target audience. With blogging platforms such as Instagram, Tumblr, WordPress, Squarespace, and other sharing sites, bloggers have emerged as expert fashion commentators, shaping brands and having a great impact on what is ‘on trend’. Women in the fashion public relations industry such as Sweaty Betty PR founder Roxy Jacenko and Oscar de la Renta's PR girl Erika Bearman, have acquired copious followers on their social media sites, by providing a brand identity and a behind the scenes look into the companies they work for. Social media is changing the way practitioners deliver messages, as they are concerned with the media, and also customer relationship building. PR practitioners must provide effective communication among all platforms, in order to engage the fashion public in an industry socially connected via online shopping. Consumers have the ability to share their purchases on their personal social media pages (such as Facebook, Twitter, Instagram, etc.), and if practitioners deliver the brand message effectively and meet the needs of its public, word-of-mouth publicity will be generated and potentially provide a wide reach for the designer and their products. Fashion and political activism As fashion concerns people, and signifies social hierarchies, fashion intersects with politics and the social organization of societies. Whereas haute couture and business suits are associated by people in power, also groups aiming to challenge the political order also use clothes to signal their position. The explicit use of fashion as a form of activism, is usually referred to as "fashion activism." There is a complex relationship between fashion and feminism. Some feminists have argued that by participating in feminine fashions women are contributing to maintaining the gender differences which are part of women's oppression. Brownmiller felt that women should reject traditionally feminine dress, focusing on comfort and practicality rather than fashion. Others believe that it is the fashion system itself that is repressive in requiring women to seasonally change their clothes to keep up with trends. Greer has advocated this argument that seasonal changes in dress should be ignored; she argues that women can be liberated by replacing the compulsiveness of fashion with enjoyment of rejecting the norm to create their own personal styling. This rejection of seasonal fashion led to many protests in the 1960s alongside rejection of fashion on socialist, racial and environmental grounds. However, Mosmann has pointed out that the relationship between protesting fashion and creating fashion is dynamic because the language and style used in these protests has then become part of fashion itself. Fashion designers and brands have traditionally kept themselves out of political conflicts, there has been a movement in the industry towards taking more explicit positions across the political spectrum. From maintaining a rather apolitical stance, designers and brands today engage more explicitly in current debates. For example, considering the U.S.'s political climate in the surrounding months of the 2016 presidential election, during 2017 fashion weeks in London, Milan, New York, Paris and São Paulo amongst others, many designers took the opportunity to take political stances leveraging their platforms and influence to reach their customers. This has also led to some controversy over democratic values, as fashion is not always the most inclusive platform for political debate, but a one-way broadcast of top-down messages. When taking an explicit political stance, designers generally favor issues that can be identified in clear language with virtuous undertones. For example, aiming to "amplify a greater message of unity, inclusion, diversity, and feminism in a fashion space", designer Mara Hoffman invited the founders of the Women's March on Washington to open her show which featured modern silhouettes of utilitarian wear, described by critics as "Made for a modern warrior" and "Clothing for those who still have work to do". Prabal Gurung debuted his collection of T-shirts featuring slogans such as "The Future is Female", "We Will Not Be Silenced", and "Nevertheless She Persisted", with proceeds going to the ACLU, Planned Parenthood, and Gurung's own charity, "Shikshya Foundation Nepal". Similarly, The Business of Fashion launched the #TiedTogether movement on Social Media, encouraging member of the industry from editors to models, to wear
of jeans; after a year, they can return the jeans to Mud, trade them for a new pair and start another year-long lease, or keep them. MUD is responsible for any repairs during the lease period. Another ethical fashion company, Patagonia set up the first multi-seller branded store on eBay to facilitate secondhand sales; consumers who take the Common Threads pledge can sell in this store and have their gear listed on Patagonia.com's "Used Gear" section. China's domestic spending Consumption as a share of gross domestic product in China has fallen for six decades, from 76 percent in 1952 to 28 percent in 2011. China plans to reduce tariffs on a number of consumer goods and expand its 72-hour transit visa plan to more cities in an effort to stimulate domestic consumption. The announcement of import tax reductions follows changes in June 2015, when the government cut the tariffs on clothing, cosmetics and various other goods by half. Among the changes – easier tax refunds for overseas shoppers and accelerated openings of more duty-free shops in cities covered by the 72-hour visa scheme. The 72-hour visa was introduced in Beijing and Shanghai in January 2013 and has been extended to 18 Chinese cities. According to reports at the same time, Chinese consumer spending in other countries such as Japan has slowed even though the yen has dropped. There is clearly a trend in the next 5 years that the domestic fashion market will show an increase. China is an interesting market for fashion retail as Chinese consumers' motivation to shop for fashion items are unique from Western Audiences. Demographics have limited association with shopping motivation, with occupation, income and education level having no impact; unlike in Western Countries. Chinese high-street shoppers prefer adventure and social shopping, while online shoppers are motivated by idea shopping. Another difference is how gratification and idea shopping influence spending over ¥1k per month on fashion items, and regular spending influenced by value shopping. Marketing Market research Consumers of different groups have varying needs and demands. Factors taken into consideration when thinking of consumers' needs include key demographics. To understand consumers' needs and predict fashion trends, fashion companies have to do market research There are two research methods: primary and secondary. Secondary methods are taking other information that has already been collected, for example using a book or an article for research. Primary research is collecting data through surveys, interviews, observation, and/or focus groups. Primary research often focuses on large sample sizes to determine customer's motivations to shop. The benefits of primary research are specific information about a fashion brand's consumer is explored. Surveys are helpful tools; questions can be open-ended or closed-ended. Negative factor surveys and interviews present is that the answers can be biased, due to wording in the survey or on face-to-face interactions. Focus groups, about 8 to 12 people, can be beneficial because several points can be addressed in depth. However, there are drawbacks to this tactic, too. With such a small sample size, it is hard to know if the greater public would react the same way as the focus group. Observation can really help a company gain insight on what a consumer truly wants. There is less of a bias because consumers are just performing their daily tasks, not necessarily realizing they are being observed. For example, observing the public by taking street style photos of people, the consumer did not get dressed in the morning knowing that would have their photo taken necessarily. They just wear what they would normally wear. Through observation patterns can be seen, helping trend forecasters know what their target market needs and wants. Knowing the needs of consumers will increase fashion companies' sales and profits. Through research and studying the consumers' lives the needs of the customer can be obtained and help fashion brands know what trends the consumers are ready for. Symbolic consumption Consumption is driven not only by need, the symbolic meaning for consumers is also a factor. Consumers engaging in symbolic consumption may develop a sense of self over an extended period of time as various objects are collected as part of the process of establishing their identity and, when the symbolic meaning is shared in a social group, to communicate their identity to others. For teenagers, consumption plays a role in distinguishing the child self from the adult. Researchers have found that the fashion choices of teenagers are used for self-expression and also to recognize other teens who wear similar clothes. The symbolic association of clothing items can link individuals' personality and interests, with music as a prominent factor influencing fashion decisions. Political influences Political figures have played a central role in the development of fashion, at least since the time of French king Louis XIV. For example, First Lady Jacqueline Kennedy was a fashion icon of the early 1960s. Wearing Chanel suits, structural Givenchy shift dresses, and soft color Cassini coats with large buttons, she inspired trends of both elegant formal dressing and classic feminine style. Cultural upheavals have also had an impact on fashion trends. For example, during the 1960s, the U.S. economy was robust, the divorce rate was increasing, and the government approved the birth control pill. These factors inspired the younger generation to rebel against entrenched social norms. The civil rights movement, a struggle for social justice and equal opportunity for Blacks, and the women's liberation movement, seeking equal rights and opportunities and greater personal freedom for women, were in full bloom. In 1964, the leg-baring mini-skirt was introduced and became a white-hot trend. Fashion designers then began to experiment with the shapes of garments: loose sleeveless dresses, micro-minis, flared skirts, and trumpet sleeves. Fluorescent colors, print patterns, bell-bottom jeans, fringed vests, and skirts became de rigueur outfits of the 1960s. Concern and protest over U.S involvement in the failing Vietnam War also influenced fashion . Camouflage patterns in military clothing, developed to help military personnel be less visible to enemy forces, seeped into streetwear designs in the 1960s. Camouflage trends have disappeared and resurfaced several times since then, appearing in high fashion iterations in the 1990s. Designers such as Valentino, Dior, and Dolce & Gabbana combined camouflage into their runway and ready-to-wear collections. Today, variations of camouflage, including pastel shades, in every article of clothing or accessory, continue to enjoy popularity. Technology influences Today, technology plays a sizable role in society, and technological influences are correspondingly increasing within the realm of fashion. Wearable technology has become incorporated; for example, clothing constructed with solar panels that charge devices and smart fabrics that enhance wearer comfort by changing color or texture based on environmental changes. 3D printing technology has influenced designers such as Iris van Herpen and Kimberly Ovitz. As the technology evolves, 3D printers will become more accessible to designers and eventually, consumers — these could potentially reshape design and production in the fashion industry entirely. Internet technology, enabling the far reaches of online retailers and social media platforms, has created previously unimaginable ways for trends to be identified, marketed, and sold immediately. Trend-setting styles are easily displayed and communicated online to attract customers. Posts on Instagram or Facebook can quickly increase awareness about new trends in fashion, which subsequently may create high demand for specific items or brands, new "buy now button" technology can link these styles with direct sales. Machine vision technology has been developed to track how fashions spread through society. The industry can now see the direct correlation on how fashion shows influence street-chic outfits. Effects such as these can now be quantified and provide valuable feedback to fashion houses, designers, and consumers regarding trends. Media The media plays a significant role when it comes to fashion. For instance, an important part of fashion is fashion journalism. Editorial critique, guidelines, and commentary can be found on television and in magazines, newspapers, fashion websites, social networks, and fashion blogs. In recent years, fashion blogging and YouTube videos have become a major outlet for spreading trends and fashion tips, creating an online culture of sharing one's style on a website or social media accounts (like instagram, tiktok, or twitter). Through these media outlets, readers and viewers all over the world can learn about fashion, making it very accessible. In addition to fashion journalism, another media platform that is important in fashion industry is advertisement. Advertisements provide information to audiences and promote the sales of products and services. The fashion industry utilizes advertisements to attract consumers and promote its products to generate sales. A few decades ago when technology was still underdeveloped, advertisements heavily relied on radio, magazines, billboards, and newspapers. These days, there are more various ways in advertisements such as television ads, online-based ads using internet websites, and posts, videos, and live streaming in social media platforms. Fashion in printed media There are two subsets of print styling: editorial and lifestyle. Editorial styling is the high - fashion styling seen in fashion magazines, and this tends to be more artistic and fashion-forward. Lifestyle styling focuses on a more overtly commercial goal, like a department store advertisement, a website, or an advertisement where fashion is not what's being sold but the models hired to promote the product in the photo. The dressing practices of the powerful have traditionally been mediated through art and the practices of the courts. The looks of the French court were disseminated through prints from the 16th century on, but gained cohesive design with the development of a centralized court under King Louis XIV, which produced an identifiable style that took his name. At the beginning of the 20th century, fashion magazines began to include photographs of various fashion designs and became even more influential than in the past. In cities throughout the world these magazines were greatly sought after and had a profound effect on public taste in clothing. Talented illustrators drew exquisite fashion plates for the publications which covered the most recent developments in fashion and beauty. Perhaps the most famous of these magazines was La Gazette du Bon Ton, which was founded in 1912 by Lucien Vogel and regularly published until 1925 (with the exception of the war years). Vogue, founded in the United States in 1892, has been the longest-lasting and most successful of the hundreds of fashion magazines that have come and gone. Increasing affluence after World War II and, most importantly, the advent of cheap color printing in the 1960s, led to a huge boost in its sales and heavy coverage of fashion in mainstream women's magazines, followed by men's magazines in the 1990s. One such example of Vogue'''s popularity is the younger version, Teen Vogue, which covers clothing and trends that are targeted more toward the "fashionista on a budget". Haute couture designers followed the trend by starting ready-to-wear and perfume lines which are heavily advertised in the magazines and now dwarf their original couture businesses. A recent development within fashion print media is the rise of text-based and critical magazines which aim to prove that fashion is not superficial, by creating a dialogue between fashion academia and the industry. Examples of this development are: Fashion Theory (1997), Fashion Practice: The Journal of Design, Creative Process & the Fashion Industry (2008), and Vestoj (2009). Fashion in television Television coverage began in the 1950s with small fashion features. In the 1960s and 1970s, fashion segments on various entertainment shows became more frequent, and by the 1980s, dedicated fashion shows such as Fashion Television started to appear. FashionTV was the pioneer in this undertaking and has since grown to become the leader in both Fashion Television and new media channels. The Fashion Industry is beginning to promote their styles through Bloggers on social media's. Vogue specified Chiara Ferragni as "blogger of the moment" due to the rises of followers through her Fashion Blog, that became popular. A few days after the 2010 Fall Fashion Week in New York City came to a close, The New Islander's Fashion Editor, Genevieve Tax, criticized the fashion industry for running on a seasonal schedule of its own, largely at the expense of real-world consumers. "Because designers release their fall collections in the spring and their spring collections in the fall, fashion magazines such as Vogue always and only look forward to the upcoming season, promoting parkas come September while issuing reviews on shorts in January", she writes. "Savvy shoppers, consequently, have been conditioned to be extremely, perhaps impractically, farsighted with their buying." The fashion industry has been the subject of numerous films and television shows, including the reality show Project Runway and the drama series Ugly Betty. Specific fashion brands have been featured in film, not only as product placement opportunities, but as bespoke items that have subsequently led to trends in fashion. Videos in general have been very useful in promoting the fashion industry. This is evident not only from television shows directly spotlighting the fashion industry, but also movies, events and music videos which showcase fashion statements as well as promote specific brands through product placements. Controversial advertisements in fashion industry Racism in fashion advertisements Some fashion advertisements have been accused of racism and led to boycotts from customers. Globally known Swedish fashion brand H&M faced this issue with one of its children's wear advertisements in 2018. A Black child wearing a hoodie with the slogan "coolest monkey in the jungle" was featured in the ad. This immediately led to controversy, as "monkey" is commonly used as slur against Black people, and caused many customers to boycott the brand. Many people, including celebrities, posted on social media about their resentments towards H&M and refusal to work with and buy its products. H&M issued a statement saying "we apologise to anyone this may have offended", though this too received some criticism for appearing insincere. Another fashion advertisement seen as racist was from GAP, an American worldwide clothing brand. GAP collaborated with Ellen DeGeneres in 2016 for the advertisement. It features four playful young girls, with a tall White girl leaning with her arm on a shorter Black girl's head. Upon release, some viewers harshly criticized it, claiming it shows an underlying passive racism. A representative from The Root commented that the ad portrays the message that Black people are undervalued and seen as props for White people to look better. Others saw little issue with the ad, and that the controversy was the result of people being oversensitive. GAP replaced the image in the ad and apologized to critics. Sexism in fashion advertisements Many fashion brands have published ads that were provocative and sexy to attract customers’ attention. British high fashion brand, Jimmy Choo, was blamed for having sexism in its ad which featured a female British model wearing the brand's boots. In this two-minute ad, men whistle at a model, walking on the street with red, sleeveless mini dress. This ad gained much backlash and criticism by the viewers, as it was seen as promoting sexual harassment and other misconduct. Many people showed their dismay through social media posts, leading Jimmy Choo to pull down the ad from social media platforms. French luxury fashion brand Yves Saint Laurent also faced this issue with its print ad shown in Paris in 2017. The ad depicted a female model wearing fishnet tights with roller-skate stilettos reclining with her legs opened in front of the camera. This advertisement brought harsh comments from both viewers and French advertising organization directors for going against the advertising codes related to "respect for decency, dignity and those prohibiting submission, violence or dependence, as well as the use of stereotypes." and additionally said that this ad was causing "mental harm to adolescents." Due to the negative public reaction, the poster was removed from the city. Public relations and social media Fashion public relations involves being in touch with a company's audiences and creating strong relationships with them, reaching out to media, and initiating messages that project positive images of the company. Social media plays an important role in modern-day fashion public relations; enabling practitioners to reach a wide range of consumers through various platforms. Building brand awareness and credibility is a key implication of good public relations. In some cases, the hype is built about new designers' collections before they are released into the market, due to the immense exposure generated by practitioners. Social media, such as blogs, microblogs, podcasts, photo and video sharing sites have all become increasingly important to fashion public relations. The interactive nature of these platforms allows practitioners to engage and communicate with the public in real-time, and tailor their clients' brand or campaign messages to the target audience. With blogging platforms such as Instagram, Tumblr, WordPress, Squarespace, and other sharing sites, bloggers have emerged as expert fashion commentators, shaping brands and having a great impact on what is ‘on trend’. Women in the fashion public relations industry such as Sweaty Betty PR founder Roxy Jacenko and Oscar de la Renta's PR girl Erika Bearman, have acquired copious followers on their social media sites, by providing a brand identity and a behind the scenes look into the companies they work for. Social media is changing the way practitioners deliver messages, as they are concerned with the media, and also customer relationship building. PR practitioners must provide effective communication among all platforms, in order to engage the fashion public in an industry socially connected via online shopping. Consumers have the ability to share their purchases on their personal social media pages (such as Facebook, Twitter, Instagram, etc.), and if practitioners deliver the brand message effectively and meet the needs of its public, word-of-mouth publicity will be generated and potentially provide a wide reach for the designer and their products. Fashion and political activism As fashion concerns people, and signifies social hierarchies, fashion intersects with politics and the social organization of societies. Whereas haute couture and business suits are associated by people in power, also groups aiming to challenge the political order also use clothes to signal their position. The explicit use of fashion as a form of activism, is usually referred to as "fashion activism." There is a complex relationship between fashion and feminism. Some feminists have argued that by participating in feminine fashions women are contributing to maintaining the gender differences which are part of women's oppression. Brownmiller felt that women should reject traditionally feminine dress, focusing on comfort and practicality rather than fashion. Others believe that it is the fashion system itself that is repressive in requiring women to seasonally change their clothes to keep up with trends. Greer has advocated this argument that seasonal changes in dress should be ignored; she argues that women can be liberated by replacing the compulsiveness of fashion with enjoyment of rejecting the norm to create their own personal styling. This rejection of seasonal fashion led to many protests in the 1960s
as Fourier synthesis. For example, determining what component frequencies are present in a musical note would involve computing the Fourier transform of a sampled musical note. One could then re-synthesize the same sound by including the frequency components as revealed in the Fourier analysis. In mathematics, the term Fourier analysis often refers to the study of both operations. The decomposition process itself is called a Fourier transformation. Its output, the Fourier transform, is often given a more specific name, which depends on the domain and other properties of the function being transformed. Moreover, the original concept of Fourier analysis has been extended over time to apply to more and more abstract and general situations, and the general field is often known as harmonic analysis. Each transform used for analysis (see list of Fourier-related transforms) has a corresponding inverse transform that can be used for synthesis. To use Fourier analysis, data must be equally spaced. Different approaches have been developed for analyzing unequally spaced data, notably the least-squares spectral analysis (LSSA) methods that use a least squares fit of sinusoids to data samples, similar to Fourier analysis. Fourier analysis, the most used spectral method in science, generally boosts long-periodic noise in long gapped records; LSSA mitigates such problems. Applications Fourier analysis has many scientific applications – in physics, partial differential equations, number theory, combinatorics, signal processing, digital image processing, probability theory, statistics, forensics, option pricing, cryptography, numerical analysis, acoustics, oceanography, sonar, optics, diffraction, geometry, protein structure analysis, and other areas. This wide applicability stems from many useful properties of the transforms: The transforms are linear operators and, with proper normalization, are unitary as well (a property known as Parseval's theorem or, more generally, as the Plancherel theorem, and most generally via Pontryagin duality). The transforms are usually invertible. The exponential functions are eigenfunctions of differentiation, which means that this representation transforms linear differential equations with constant coefficients into ordinary algebraic ones. Therefore, the behavior of a linear time-invariant system can be analyzed at each frequency independently. By the convolution theorem, Fourier transforms turn the complicated convolution operation into simple multiplication, which means that they provide an efficient way to compute convolution-based operations such as signal filtering, polynomial multiplication, and multiplying large numbers. The discrete version of the Fourier transform (see below) can be evaluated quickly on computers using fast Fourier transform (FFT) algorithms. In forensics, laboratory infrared spectrophotometers use Fourier transform analysis for measuring the wavelengths of light at which a material will absorb in the infrared spectrum. The FT method is used to decode the measured signals and record the wavelength data. And by using a computer, these Fourier calculations are rapidly carried out, so that in a matter of seconds, a computer-operated FT-IR instrument can produce an infrared absorption pattern comparable to that of a prism instrument. Fourier transformation is also useful as a compact representation of a signal. For example, JPEG compression uses a variant of the Fourier transformation (discrete cosine transform) of small square pieces of a digital image. The Fourier components of each square are rounded to lower arithmetic precision, and weak components are eliminated entirely, so that the remaining components can be stored very compactly. In image reconstruction, each image square is reassembled from the preserved approximate Fourier-transformed components, which are then inverse-transformed to produce an approximation of the original image. In signal processing, the Fourier transform often takes a time series or a function of continuous time, and maps it into a frequency spectrum. That is, it takes a function from the time domain into the frequency domain; it is a decomposition of a function into sinusoids of different frequencies; in the case of a Fourier series or discrete Fourier transform, the sinusoids are harmonics of the fundamental frequency of the function being analyzed. When a function is a function of time and represents a physical signal, the transform has a standard interpretation as the frequency spectrum of the signal. The magnitude of the resulting complex-valued function at frequency represents the amplitude of a frequency component whose initial phase is given by the angle of (polar coordinates). Fourier transforms are not limited to functions of time, and temporal frequencies. They can equally be applied to analyze spatial frequencies, and indeed for nearly any function domain. This justifies their use in such diverse branches as image processing, heat conduction, and automatic control. When processing signals, such as audio, radio waves, light waves, seismic waves, and even images, Fourier analysis can isolate narrowband components of a compound waveform, concentrating them for easier detection or removal. A large family of signal processing techniques consist of Fourier-transforming a signal, manipulating the Fourier-transformed data in a simple way, and reversing the transformation. Some examples include: Equalization of audio recordings with a series of bandpass filters; Digital radio reception without a superheterodyne circuit, as in a modern cell phone or radio scanner; Image processing to remove periodic or anisotropic artifacts such as jaggies from interlaced video, strip artifacts from strip aerial photography, or wave patterns from radio frequency interference in a digital camera; Cross correlation of similar images for co-alignment; X-ray crystallography to reconstruct a crystal structure from its diffraction pattern; Fourier-transform ion cyclotron resonance mass spectrometry to determine the mass of ions from the frequency of cyclotron motion in a magnetic field; Many other forms of spectroscopy, including infrared and nuclear magnetic resonance spectroscopies; Generation of sound spectrograms used to analyze sounds; Passive sonar used to classify targets based on machinery noise. Variants of Fourier analysis (Continuous) Fourier transform Most often, the unqualified term Fourier transform refers to the transform of functions of a continuous real argument, and it produces a continuous function of frequency, known as a frequency distribution. One function is transformed into another, and the operation is reversible. When the domain of the input (initial) function is time (), and the domain of
sums of simpler trigonometric functions. Fourier analysis grew from the study of Fourier series, and is named after Joseph Fourier, who showed that representing a function as a sum of trigonometric functions greatly simplifies the study of heat transfer. The subject of Fourier analysis encompasses a vast spectrum of mathematics. In the sciences and engineering, the process of decomposing a function into oscillatory components is often called Fourier analysis, while the operation of rebuilding the function from these pieces is known as Fourier synthesis. For example, determining what component frequencies are present in a musical note would involve computing the Fourier transform of a sampled musical note. One could then re-synthesize the same sound by including the frequency components as revealed in the Fourier analysis. In mathematics, the term Fourier analysis often refers to the study of both operations. The decomposition process itself is called a Fourier transformation. Its output, the Fourier transform, is often given a more specific name, which depends on the domain and other properties of the function being transformed. Moreover, the original concept of Fourier analysis has been extended over time to apply to more and more abstract and general situations, and the general field is often known as harmonic analysis. Each transform used for analysis (see list of Fourier-related transforms) has a corresponding inverse transform that can be used for synthesis. To use Fourier analysis, data must be equally spaced. Different approaches have been developed for analyzing unequally spaced data, notably the least-squares spectral analysis (LSSA) methods that use a least squares fit of sinusoids to data samples, similar to Fourier analysis. Fourier analysis, the most used spectral method in science, generally boosts long-periodic noise in long gapped records; LSSA mitigates such problems. Applications Fourier analysis has many scientific applications – in physics, partial differential equations, number theory, combinatorics, signal processing, digital image processing, probability theory, statistics, forensics, option pricing, cryptography, numerical analysis, acoustics, oceanography, sonar, optics, diffraction, geometry, protein structure analysis, and other areas. This wide applicability stems from many useful properties of the transforms: The transforms are linear operators and, with proper normalization, are unitary as well (a property known as Parseval's theorem or, more generally, as the Plancherel theorem, and most generally via Pontryagin duality). The transforms are usually invertible. The exponential functions are eigenfunctions of differentiation, which means that this representation transforms linear differential equations with constant coefficients into ordinary algebraic ones. Therefore, the behavior of a linear time-invariant system can be analyzed at each frequency independently. By the convolution theorem, Fourier transforms turn the complicated convolution operation into simple multiplication, which means that they provide an efficient way to compute convolution-based operations such as signal filtering, polynomial multiplication, and multiplying large numbers. The discrete version of the Fourier transform (see below) can be evaluated quickly on computers using fast Fourier transform (FFT) algorithms. In forensics, laboratory infrared spectrophotometers use Fourier transform analysis for measuring the wavelengths of light at which a material will absorb in the infrared spectrum. The FT method is used to decode the measured signals and record the wavelength data. And by using a computer, these Fourier calculations are rapidly carried out, so that in a matter of seconds, a computer-operated FT-IR instrument can produce an infrared absorption pattern comparable to that of a prism instrument. Fourier transformation is also useful as a compact representation of a signal. For example, JPEG compression uses a variant of the Fourier transformation (discrete cosine transform) of small square pieces of a digital image. The Fourier components of each square are rounded to lower arithmetic precision, and weak components are eliminated entirely, so that the remaining components can be stored very compactly. In image reconstruction, each image square is reassembled from the preserved approximate Fourier-transformed components, which are then inverse-transformed to produce an approximation of the original image. In signal processing, the Fourier transform often takes a time series or a function of continuous time, and maps it into a frequency spectrum. That is, it takes a function from the time domain into the frequency domain; it is a decomposition of a function into sinusoids of different frequencies; in the case of a Fourier series or discrete Fourier transform, the sinusoids are harmonics of the fundamental frequency of the function being analyzed. When a function is a function of time and represents a physical signal, the transform has a standard interpretation as the frequency spectrum of the signal. The magnitude of the resulting complex-valued function at frequency represents the amplitude of a frequency component whose initial phase is given by the angle of (polar coordinates). Fourier transforms are not limited to functions of time, and temporal frequencies. They can equally be applied to analyze spatial frequencies, and indeed for nearly any function domain. This justifies their use in such diverse branches as image processing, heat conduction, and automatic control. When processing signals, such as audio, radio waves, light waves, seismic waves, and even images, Fourier analysis can isolate narrowband components of a compound waveform, concentrating them for easier detection or removal. A large family of signal processing techniques consist of Fourier-transforming a signal, manipulating the Fourier-transformed data in a simple way, and reversing the transformation. Some examples include: Equalization of audio recordings with a series of bandpass filters; Digital radio reception without a superheterodyne circuit, as in a modern cell phone or radio scanner; Image processing to remove periodic or anisotropic artifacts such as jaggies from interlaced video, strip artifacts from strip aerial photography, or wave patterns from radio frequency interference in a digital camera; Cross correlation of similar images for co-alignment; X-ray crystallography to reconstruct a crystal structure from its diffraction pattern; Fourier-transform ion cyclotron resonance mass spectrometry to determine the mass of ions from the frequency of cyclotron motion in a magnetic field; Many other forms of spectroscopy, including infrared and nuclear magnetic resonance spectroscopies; Generation of sound spectrograms used to analyze sounds; Passive sonar used to classify targets based on machinery noise. Variants of Fourier analysis (Continuous) Fourier transform Most often, the unqualified term Fourier transform refers to the transform of functions of a continuous real argument, and it produces a continuous function of frequency, known as a frequency distribution. One function is transformed into another, and the operation is reversible. When the domain of the input (initial) function is time (), and the domain of the output (final) function is ordinary frequency, the transform of function at frequency is given by the complex number: Evaluating this quantity for all values of produces the frequency-domain function. Then can be represented as a recombination of complex exponentials of all possible frequencies: which is the inverse transform formula. The complex number, , conveys both amplitude and phase of frequency .
was the city of Kokura, but it was found to be obscured by clouds and drifting smoke from fires started by a major firebombing raid by 224 B-29s on nearby Yahata the previous day. This covered 70% of the area over Kokura, obscuring the aiming point. Three bomb runs were made over the next 50 minutes, burning fuel and repeatedly exposing the aircraft to the heavy defenses of Yahata, but the bombardier was unable to drop visually. By the time of the third bomb run, Japanese anti-aircraft fire was getting close; Second Lieutenant Jacob Beser was monitoring Japanese communications, and he reported activity on the Japanese fighter direction radio bands. Sweeney then proceeded to the alternative target of Nagasaki. It was obscured by clouds, as well, and Ashworth ordered Sweeney to make a radar approach. At the last minute, however, bombardier Captain Kermit K. Beahan found a hole in the clouds. The Fat Man was dropped and exploded at 11:02 local time, following a 43-second free-fall, at an altitude of about . There was poor visibility due to cloud cover and the bomb missed its intended detonation point by almost two miles, so the damage was somewhat less extensive than that in Hiroshima. An estimated 35,000–40,000 people were killed outright by the bombing at Nagasaki. A total of 60,000–80,000 fatalities resulted, including from long-term health effects, the strongest of which was leukemia with an attributable risk of 46% for bomb victims. Others died later from related blast and burn injuries, and hundreds more from radiation illnesses from exposure to the bomb's initial radiation. Most of the direct deaths and injuries were among munitions or industrial workers. Mitsubishi's industrial production in the city was also severed by the attack; the dockyard would have produced at 80 percent of its full capacity within three to four months, the steelworks would have required a year to get back to substantial production, the electric works would have resumed some production within two months and been back at capacity within six months, and the arms plant would have required 15 months to return to 60 to 70 percent of former capacity. The Mitsubishi-Urakami Ordnance Works, which manufactured the Type 91 torpedoes released in the attack on Pearl Harbor, was destroyed in the blast. Post-war development After the war, two Y-1561 Fat Man bombs were used in the Operation "Crossroads" nuclear tests at Bikini Atoll in the Pacific. The first was known as Gilda after Rita Hayworth's character in the 1946 movie Gilda, and it was dropped by the B-29 Dave's Dream; it missed its aim point by . The second bomb was nicknamed Helen of Bikini and was placed without its tail fin assembly in a steel caisson made from a submarine's conning tower; it was detonated beneath the landing craft USS LSM-60. The two weapons yielded about each. The Los Alamos Laboratory and the Army Air Forces had already commenced work on improving the design. The North American B-45 Tornado, Convair XB-46, Martin XB-48, and Boeing B-47 Stratojet bombers had bomb bays sized to carry the Grand Slam, which was much longer but not as wide as the Fat Man. The only American bombers that could carry the Fat Man were the B-29 and the Convair B-36. In November 1945, the Army Air Forces asked Los Alamos for 200 Fat Man bombs, but there were only two sets of plutonium cores and high-explosive assemblies at the time. The Army Air Forces wanted improvements to the design to make it easier to manufacture, assemble, handle, transport, and stockpile. The wartime Project W-47 was continued, and drop tests resumed in January 1946. The Mark III Mod 0 Fat Man was ordered into production in mid-1946. High explosives were manufactured by the Salt Wells Pilot Plant, which had been established by the Manhattan Project as part of Project Camel, and a new plant was established at the Iowa Army Ammunition Plant. Mechanical components were made or procured by the Rock Island Arsenal; electrical and mechanical components for about 50 bombs were stockpiled at Kirtland Army Air Field by August 1946, but only nine plutonium cores were available. Production of the Mod 0 ended in December 1948, by which time there were still only 53 cores available. It was replaced by improved versions known as Mods 1 and 2 which contained a number of minor changes, the most important of which was that they did not charge the X-Unit firing system's capacitors until released from the aircraft. The Mod 0s were withdrawn from service between March and July 1949, and by October they had all been rebuilt as Mods 1 and 2. Some 120 Mark III Fat Man units were added to the stockpile between 1947 and 1949 when it was superseded by the Mark 4 nuclear bomb. The Mark III Fat Man was retired in 1950. A nuclear strike would have been a formidable undertaking in the post-war 1940s due to the limitations of the Mark III Fat Man. The lead-acid batteries which powered the fuzing system remained charged for only 36 hours, after which they needed to be recharged. To do this meant disassembling the bomb, and recharging took 72 hours. The batteries had to be removed in any case after nine days or they corroded. The plutonium core could not be left in for much longer, because its heat damaged the high explosives. Replacing the core also required the bomb to be completely disassembled and reassembled. This required about 40 to 50 men and took between 56 and 72 hours, depending on the skill of the bomb assembly team, and the Armed Forces Special Weapons Project had only three teams in June 1948. The only aircraft capable of carrying the bomb were Silverplate B-29s, and the only group equipped with them was the 509th Bombardment Group at Walker Air Force Base in Roswell, New Mexico. They would first have to fly to Sandia Base to collect the bombs, and then to
barrel too long for any existing or planned bomber. The only way to use plutonium in a workable bomb was therefore implosion. The impracticability of a gun-type bomb using plutonium was agreed at a meeting in Los Alamos on 17 July 1944. All gun-type work in the Manhattan Project was directed at the Little Boy, enriched-uranium gun design, and the Los Alamos Laboratory was reorganized, with almost all of the research focused on the problems of implosion for the Fat Man bomb. The idea of using shaped charges as three-dimensional explosive lenses came from James L. Tuck, and was developed by von Neumann. To overcome the difficulty of synchronizing multiple detonations, Luis Alvarez and Lawrence Johnston invented exploding-bridgewire detonators to replace the less precise primacord detonation system. Robert Christy is credited with doing the calculations that showed how a solid subcritical sphere of plutonium could be compressed to a critical state, greatly simplifying the task, since earlier efforts had attempted the more-difficult compression of a hollow spherical shell. After Christy's report, the solid-plutonium core weapon was referred to as the "Christy Gadget". The task of the metallurgists was to determine how to cast plutonium into a sphere. The difficulties became apparent when attempts to measure the density of plutonium gave inconsistent results. At first contamination was believed to be the cause, but it was soon determined that there were multiple allotropes of plutonium. The brittle α phase that exists at room temperature changes to the plastic β phase at higher temperatures. Attention then shifted to the even more malleable δ phase that normally exists in the range. It was found that this was stable at room temperature when alloyed with aluminum, but aluminum emits neutrons when bombarded with alpha particles, which would exacerbate the pre-ignition problem. The metallurgists then hit upon a plutonium–gallium alloy, which stabilized the δ phase and could be hot pressed into the desired spherical shape. As plutonium was found to corrode readily, the sphere was coated with nickel. The size of the bomb was constrained by the available aircraft, which were investigated for suitability by Dr. Norman Foster Ramsey. The only Allied aircraft considered capable of carrying the Fat Man without major modification were the British Avro Lancaster and the American Boeing B-29 Superfortress. At the time, the B-29 represented the epitome of bomber technology with significant advantages in Maximum takeoff weight, range, speed, flight ceiling, and survivability. Without the availability of the B-29, dropping the bomb would likely have been impossible. However, this still constrained the bomb to a maximum length of , width of and weight of . Removing the bomb rails allowed a maximum width of . Drop tests began in March 1944, and resulted in modifications to the Silverplate aircraft due to the weight of the bomb. High-speed photographs revealed that the tail fins folded under the pressure, resulting in an erratic descent. Various combinations of stabilizer boxes and fins were tested on the Fat Man shape to eliminate its persistent wobble until an arrangement dubbed a "California Parachute", a cubical open-rear tail box outer surface with eight radial fins inside of it, four angled at 45° and four perpendicular to the line of fall holding the outer square-fin box to the bomb's rear end, was approved. In drop tests in early weeks, the Fat Man missed its target by an average of , but this was halved by June as the bombardiers became more proficient with it. The early Y-1222 model Fat Man was assembled with some 1,500 bolts. This was superseded by the Y-1291 design in December 1944. This redesign work was substantial, and only the Y-1222 tail design was retained. Later versions included the Y-1560, which had 72 detonators; the Y-1561, which had 32; and the Y-1562, which had 132. There were also the Y-1563 and Y-1564, which were practice bombs with no detonators at all. The final wartime Y-1561 design was assembled with just 90 bolts. On 16 July 1945, a Y-1561 model Fat Man, known as the Gadget, was detonated in a test explosion at a remote site in New Mexico, known as the "Trinity" test. It gave a yield of about . Some minor changes were made to the design as a result of the Trinity test. Philip Morrison recalled that "There were some changes of importance... The fundamental thing was, of course, very much the same." Interior The bomb was long and in diameter. It weighed . Assembly The plutonium pit was in diameter and contained an "Urchin" modulated neutron initiator that was in diameter. The depleted uranium tamper was an diameter sphere, surrounded by a thick shell of boron-impregnated plastic. The plastic shell had a diameter cylindrical hole running through it, like the hole in a cored apple, in order to allow insertion of the pit as late as possible. The missing tamper cylinder containing the pit could be slipped in through a hole in the surrounding diameter aluminum pusher. The pit was warm to the touch, emitting 2.4 W/kg-Pu, about 15 W for the core. The explosion symmetrically compressed the plutonium to twice its normal density before the "Urchin" added free neutrons to initiate a fission chain reaction. The result was the fission of about of the of plutonium in the pit, i.e. of about 16% of the fissile material present. The detonation released the energy equivalent to the detonation of . About 30% of the yield came from fission of the uranium tamper. Bombing of Nagasaki Bomb assembly The first plutonium core was transported with its polonium-beryllium modulated neutron initiator in the custody of Project Alberta courier Raemer Schreiber in a magnesium field carrying case designed for the purpose by Philip Morrison. Magnesium was chosen because it does not act as a tamper. It left Kirtland Army Air Field on a C-54 transport aircraft of the 509th Composite Group's 320th Troop Carrier Squadron on 26 July and arrived at North Field on Tinian on 28 July. Three Fat Man high-explosive pre-assemblies (designated F31, F32, and F33) were picked up at Kirtland on 28 July by three B-29s: Luke the Spook and Laggin' Dragon from the 509th Composite Group's 393d Bombardment Squadron, and another from the 216th Army Air Forces Base Unit. The cores were transported to North Field, arriving on 2 August, when F31 was partly disassembled in order to check all its components. F33 was expended near Tinian during a final rehearsal on 8 August. F32 presumably would have been used for a third attack or its rehearsal. On 7 August, the day after the bombing of Hiroshima, Rear Admiral William R. Purnell, Commodore William S. Parsons, Tibbets, General Carl Spaatz and Major General Curtis LeMay met on Guam to discuss what should be done next. Since there was no indication of Japan surrendering, they decided to proceed with their orders and drop another bomb. Parsons said that Project Alberta would have it ready by 11 August, but Tibbets pointed to weather reports indicating poor flying conditions on that day due to a storm and asked if the bomb could be made ready by 9 August. Parsons agreed to try to do so. Fat Man F31 was assembled on Tinian by Project Alberta personnel, and the physics package was fully assembled and wired. It was placed inside its ellipsoidal aerodynamic bombshell and wheeled out, where it was signed by nearly 60 people, including Purnell, Brigadier General Thomas F. Farrell, and Parsons. It was then wheeled to the bomb bay of the B-29 Superfortress named Bockscar after the plane's command pilot Captain Frederick C. Bock, who flew The Great Artiste with his crew on the mission. Bockscar was flown by Major Charles W. Sweeney and his crew, with Commander Frederick L. Ashworth from Project Alberta as the weaponeer in charge of the bomb. Bombing of Nagasaki Bockscar lifted off at 03:47 on the morning of 9 August 1945, with Kokura as the primary target and Nagasaki the secondary target. The weapon was already armed, but with the green electrical safety plugs still engaged. Ashworth changed them to red after ten minutes so that Sweeney could climb to in order to get above storm clouds. During the pre-flight inspection of Bockscar, the flight engineer notified Sweeney that an inoperative fuel transfer pump made it impossible to use of fuel carried in a reserve tank. This fuel would still have to be carried all the way to Japan and back, consuming still more fuel. Replacing the pump would take hours; moving the Fat Man to another aircraft might take just as long and was dangerous as well, as the bomb was live. Colonel Paul Tibbets and Sweeney therefore elected to have Bockscar continue the mission. The target for the bomb was the city of Kokura, but it was found to be obscured by clouds and drifting smoke from fires started by a major firebombing raid by 224 B-29s on nearby Yahata the previous day. This covered 70% of the area over Kokura, obscuring the aiming point. Three bomb runs were made over the next 50 minutes, burning fuel and repeatedly exposing the aircraft to the heavy defenses of Yahata, but the bombardier was unable to drop visually. By the time of the third bomb run, Japanese anti-aircraft fire was getting close; Second Lieutenant
The IRS position was challenged by a relator in the case of Alderson v. United States; and, in 2012, the U.S. Court of Appeals for the Ninth Circuit upheld the IRS' stance. As of 2013, this remained the only circuit court decision on tax treatment of these payments. Relevant decisions by the United States Supreme Court In a 2000 case, Vermont Agency of Natural Resources v. United States ex rel. Stevens, 529 U.S. 765 (2000), the United States Supreme Court held that a private individual may not bring suit in federal court on behalf of the United States against a State (or state agency) under the FCA. In Stevens, the Supreme Court also endorsed the "partial assignment" approach to qui tam relator standing to sue, which had previously been articulated by the Ninth Circuit Federal Court of Appeals and is an exception to the general legal rule for standing. In a 2007 case, Rockwell International Corp. v. United States, the United States Supreme Court considered several issues relating to the "original source" exception to the FCA's public-disclosure bar. The Court held that (1) the original source requirement of the FCA provision setting for the original-source exception to the public-disclosure bar on federal-court jurisdiction is jurisdictional; (2) the statutory phrase "information on which the allegations are based" refers to the relator's allegations and not the publicly disclosed allegations; the terms "allegations" is not limited to the allegations in the original complaint, but includes, at a minimum, the allegations in the original complaint as amended; (3) relator's knowledge with respect to the pondcrete fell short of the direct and independent knowledge of the information on which the allegations are based required for him to qualify as an original source; and (4) the government's intervention did not provide an independent basis of jurisdiction with respect to the relator. In a 2008 case, Allison Engine Co. v. United States ex rel. Sanders, the United States Supreme Court considered whether a false claim had to be presented directly to the Federal government, or if it merely needed to be paid with government money, such as a false claim by a subcontractor to a prime contractor. The Court found that the claim need not be presented directly to the government, but that the false statement must be made with the intention that it will be relied upon by the government in paying, or approving payment of, a claim. The Fraud Enforcement and Recovery Act of 2009 reversed the Court's decision and made the types of fraud to which the False Claims Act applies more explicit. In a 2009 case, United States ex rel. Eisenstein v. City of New York, the United States Supreme Court considered whether, when the government declines to intervene or otherwise actively participate in a qui tam action under the False Claims Act, the United States is a "party" to the suit for purposes of Federal Rule of Appellate Procedure 4(a)(1)(A) (which requires that a notice of appeal in a federal civil action generally be filed within 30 days after entry of a judgment or order from which the appeal is taken). The Court held that when the United States has declined to intervene in a privately initiated FCA action, it is not a "party" for FRAP 4 purposes, and therefore, petitioner's appeal filed after 30 days was untimely. In a 2016 case, Universal Health Services, Inc. v. United States ex rel. Escobar, the United States Supreme Court sought to clarify the standard for materiality under the FCA. The court unanimously upheld the implied certification theory of FCA liability and strengthened the FCA's materiality requirement. State False Claims Acts As of 2020, 29 states and the District of Columbia have false-claims laws modeled on the federal statute to protect their publicly funded programs from fraud by including qui tam provisions, which enables them to recover money at state level. Some of these state False Claims Act statutes provide similar protections to those of the federal law, while others limit recovery to claims of fraud related to the Medicaid program. The California False Claims Act was enacted in 1987, but lay relatively dormant until the early 1990s, when public entities, frustrated by what they viewed as a barrage of unjustified and unmeritorious claims, began to employ the False Claims Act as a defensive measure. In 1995, the State of Texas passed the Texas Medicaid Fraud Prevention Act (TMFPA), which specifically aims at combating fraud against the Texas Medicaid Program, which provides healthcare and prescription drug coverage to low-income individuals. The Texas law enacts state qui tam provisions that allow individuals to report fraud and initiate action against violations of the TMFPA, imposes consequences for noncompliance and includes whistleblower protections. Influence on other countries In Australia, The Treasury Laws Amendment (Enhancing Whistleblower Protections) Act, was passed in December 2018 and went into effect in 2019. The law expanded protections for whistleblowers, allowing them to report misconduct anonymously, as well as applying anti-retaliation protections to additional kinds of whistleblowers. Importantly, the law does not provide for rewards for whistleblowers. There have been calls since 2011 for legislation modeled on the False Claims Act and for their application to the tobacco industry and carbon pricing schemes. In October 2013, the UK Government announced that it is considering the case for financially incentivising individuals reporting fraud in economic crime cases by private sector organisations, in an approach much like the US False Claims Act. The 'Serious and Organised Crime Strategy' paper released by the UK's Secretary of State for the Home Department sets out how that government plans to take action to prevent serious and organised crime and strengthen protections against and responses to it. The paper asserts that serious and organised crime costs the UK more than £24 billion a year. In the context of anti-corruption, the paper acknowledges that there is a need to not only target serious and organised criminals but also support those who seek to help identify and disrupt serious and organised criminality. Three UK agencies, the Department for Business, Innovation & Skills, the Ministry of Justice and the Home Office were tasked with considering the case for a US-style False Claims Act in the UK. In July 2014, the Financial Conduct Authority and the Bank of England Prudential Regulation Authority recommended Parliament enact strong measure to encourage and protect whistleblowers, but without offering whistleblower rewards – rejecting the US model. Rule 9(b) circuit split Under Rule 9(b) of the Federal Rules of Civil Procedure, allegations of fraud or mistake must be pleaded with particularity. All appeals courts to have addressed the issue of whether Rule 9(b) pleading standards apply to qui tam actions have held that the heightened standard applies. The Fifth Circuit, the Sixth Circuit, the Seventh Circuit, the Eighth Circuit, the Tenth Circuit, and the Eleventh Circuit have all found that plaintiffs must allege specific false claims. In 2010, the First Circuit decision in U.S. ex rel. Duxbury v. Ortho Biotech Prods., L.P.(2009) and the Eleventh Circuit ruling in U.S. ex rel. Hopper v. Solvay Pharms., Inc.(2009) were both appealed to the U.S. Supreme Court. The Court denied certiorari for both cases, however, declining to resolve the divergent appeals court decisions. ACLU et al. v. Holder In 2009, the American Civil Liberties Union (ACLU), Government Accountability Project (GAP) and OMB Watch filed suit against the Department of Justice challenging the constitutionality of the "seal provisions" of the FCA that require the whistleblower and the court to keep lawsuits confidential for at least 60 days. The plaintiffs argued that the requirements infringe the First Amendment rights of the public and the whistleblower, and that they violate the division of powers, since courts are not free to release the documents until the executive branch acts. The government moved for dismissal, and the district court granted that motion in 2009. The plaintiffs appealed, and in 2011 their appeal was denied. Examples In 2004, the billing groups associated with the University of Washington agreed to pay $35 million to resolve civil claims brought by whistleblower Mark Erickson, a former compliance officer, under the False Claims Act. The settlement, approved by the UW Board of Regents, resolved claims that they systematically overbilled Medicaid and Medicare and that employees destroyed documents to hide the practice. The fraud settlement, the largest against a teaching hospital since the University of Pennsylvania agreed to pay $30 million in 1995, ended a five-year investigation that resulted in guilty pleas from two prominent doctors. The whistleblower was awarded $7.25M. In 2010, a subsidiary of Johnson & Johnson agreed to pay over $81 million in civil and criminal penalties to resolve allegations in a FCA suit filed by two whistleblowers. The suit alleged that Ortho-McNeil-Janssen Pharmaceuticals, Inc. (OMJPI) acted improperly concerning the marketing, promotion and sale of the anti-convulsant drug Topamax. Specifically, the suit alleged that OMJPI "illegally marketed Topamax by, among other things, promoting the sale and use of Topamax for a variety of psychiatric conditions other than those for which its use was approved by the Food and Drug Administration, (i.e., "off-label" uses)." It also states that "certain of these uses were not medically accepted indications for which State Medicaid programs provided coverage" and that as a result "OMJPI knowingly caused false or fraudulent claims for Topamax to be submitted to, or caused purchase by, certain federally funded healthcare programs. In response to a complaint from whistleblower Jerry H. Brown II, the US Government filed suit against Maersk for overcharging for shipments to US forces fighting in Iraq and Afghanistan. In a settlement announced on 3 January 2012, the company agreed to pay $31.9 million in fines and interest, but made no admission of wrongdoing. Brown was entitled to $3.6 million of the settlement. The largest healthcare fraud settlement in history was made by GlaxoSmithKline in 2012 when it paid a total of $3 billion to resolve four qui tam lawsuits brought under the False Claims Act and related criminal charges. The claims include allegations Glaxo engaged in off-label marketing and paid kickbacks to doctors to prescribe certain drugs, including Paxil, Wellbutrin and Advair. In 2013, Wyeth Pharmaceuticals Inc., a pharmaceutical company acquired by Pfizer, Inc. in 2009, paid $490.9 million to resolve its criminal and civil liability arising from the unlawful marketing of its drug Rapamune for uses that were
people who are not affiliated with the government, called "relators" under the law, to file actions on behalf of the government (informally called "whistleblowing" especially when the relator is employed by the organization accused in the suit). Persons filing under the Act stand to receive a portion (15-30 percent, depending on certain factors) of any recovered damages. As of 2019, over 71 percent of all FCA actions were initiated by whistleblowers. Claims under the law have typically involved health care, military, or other government spending programs, and dominate the list of largest pharmaceutical settlements. Between 1987 and 2019, the government recovered more than $62 billion under the False Claims Act. History Qui tam laws have history dating back to the Middle Ages in England. In 1318, King Edward II offered one third of the penalty to the relator when the relator successfully sued government officials who moonlighted as wine merchants. The Maintenance and Embracery Act 1540 of Henry VIII provided that common informers could sue for certain forms of interference with the course of justice in legal proceedings that were concerned with the title to land. This act is still in force today in the Republic of Ireland, although in 1967 it was extinguished in England. The idea of a common informer bringing suit for damages to the Commonwealth was later brought to Massachusetts, where "penalties for fraud in the sale of bread [are] to be distributed one third to inspector who discovered the fraud and the remainder for the benefit of the town where the offense occurred." Other statutes can be found on the colonial law books of Connecticut, New York, Virginia and South Carolina. The American Civil War (1861–1865) was marked by fraud on all levels, both in the Union north and the Confederate south. During the war, unscrupulous contractors sold the Union Army decrepit horses and mules in ill health, faulty rifles and ammunition, and rancid rations and provisions, among other unscrupulous actions. In response, Congress passed the False Claims Act on March 2, 1863, . Because it was passed under the administration of President Abraham Lincoln, the False Claims Act is often referred to as the "Lincoln Law". Importantly, a reward was offered in what is called the qui tam provision, which permits citizens to sue on behalf of the government and be paid a percentage of the recovery. Qui tam is an abbreviated form of the Latin legal phrase qui tam pro domino rege quam pro se ipso in hac parte sequitur ("he who brings a case on behalf of our lord the King, as well as for himself") In a qui tam action, the citizen filing suit is called a "relator". As an exception to the general legal rule of standing, courts have held that qui tam relators are "partially assigned" a portion of the government's legal injury, thereby allowing relators to proceed with their suits. U.S. Senator Jacob M. Howard, who sponsored the legislation, justified giving rewards to whistle blowers, many of whom had engaged in unethical activities themselves. He said, "I have based the [qui tam provision] upon the old-fashioned idea of holding out a temptation, and ‘setting a rogue to catch a rogue,’ which is the safest and most expeditious way I have ever discovered of bringing rogues to justice." In the massive military spending leading up to and during World War II, the US Attorney General relied on criminal provisions of the law to deal with fraud, rather than using the FCA. As a result, attorneys would wait for the Department of Justice to file criminal cases and then immediately file civil suits under the FCA, a practice decried as "parasitic" at the time. Congress moved to abolish the FCA but at the last minute decided instead to reduce the relator's share of the recovered proceeds. The law was again amended in 1986, again due to issues with military spending. Under President Ronald Reagan's military buildup, reports of massive fraud among military contractors had become major news, and Congress acted to strengthen the FCA. The first qui tam case under the amended False Claims Act was filed in 1987 by an eye surgeon against an eye clinic and one of its doctors, alleging unnecessary surgeries and other procedures were being performed. The case settled in 1988 for a total of $605,000. However, the law was primarily used in the beginning against defense contractors. By the late 1990s, health care fraud began to receive more focus, accounting for approximately 40% of recoveries by 2008 Franklin v. Parke-Davis, filed in 1996, was the first case to apply the FCA to fraud committed by a pharma company against the government, due to bills submitted for payment by Medicaid/Medicare for treatments that those programs do not pay for as they are not FDA-approved or otherwise listed on a government formulary. FCA cases against pharma companies are often related to off-label marketing of drugs by drug companies, which is illegal under a different law, the Federal Food, Drug, and Cosmetic Act; the intersection occurs when off-label marketing leads to prescriptions being filled and bills for those prescriptions being submitted to Medicare/Medicaid. As of 2019, over 72 percent of all federal FCA actions were initiated by whistleblowers. The government recovered $62.1 billion under the False Claims Act between 1987 and 2019 and of this amount, over $44.7 billion or 72% was from qui tam cases brought by relators. In 2014, whistleblowers filed over 700 False Claims Act lawsuits. In 2014, the Department of Justice had its highest annual recovery in False Claims Act history, obtaining more than $6.1 billion in settlements and judgments from civil cases involving fraud and false claims against the government. In fiscal year 2019, the Department of Justice recovered over $3 billion under the False Claims Act, $2.2 billion of which were generated by whistleblowers. Since 2010, the federal government has recovered over $37.6 billion in False Claims Act settlements and judgments. In 2020, the DOJ recovered $2.2 billion from FCA cases: $1.6 billion of that total was from cases filed under the FCA. Qui tam whistleblowers received a total of $309 million in whistleblower rewards in 2020. Provisions The Act establishes liability when any person or entity improperly receives from or avoids payment to the Federal government. The Act prohibits: Knowingly presenting, or causing to be presented a false claim for payment or approval; Knowingly making, using, or causing to be made or used, a false record or statement material to a false or fraudulent claim; Conspiring to commit any violation of the False Claims Act; Falsely certifying the type or amount of property to be used by the Government; Certifying receipt of property on a document without completely knowing that the information is true; Knowingly buying Government property from an unauthorized officer of the Government, and; Knowingly making, using, or causing to be made or used a false record to avoid, or decrease an obligation to pay or transmit property to the Government. The False Claims act does not apply to IRS Tax matters. The statute provides that anyone who violates the law "is liable to the United States Government for a civil penalty of not less than $5,000 and not more than $10,000, as adjusted by the Federal Civil Penalties Inflation Adjustment Act of 1990, plus 3 times the amount of damages which the Government sustains because of the act of that person." The False Claims Act requires a separate penalty for each violation of the statute. Under the Civil Penalties Inflation Adjustment Act, False Claims Act penalties are periodically adjusted for inflation. In 2020, the penalties range from $11,665 to $23,331 per violation. Certain claims are not actionable, including: certain actions against armed forces members, members of the United States Congress, members of the judiciary, or senior executive branch officials; claims, records, or statements made under the Internal Revenue Code of 1986 which would include tax fraud; There are unique procedural requirements in False Claims Act cases. For example: a complaint under the False Claims Act must be filed under seal; the complaint must be served on the government but must not be served on the defendant; the complaint must be buttressed by a comprehensive memorandum, not filed in court, but served on the government detailing the factual underpinnings of the complaint. In addition, the FCA contains an anti-retaliation provision, which allows a relator to recover, in addition to his award for reporting fraud, double damages plus attorney fees for any acts of retaliation for reporting fraud against the Government. This provision specifically provides relators with a personal claim of double damages for harm suffered and reinstatement. Under the False Claims Act, the Department of Justice is authorized to pay rewards to those who report fraud against the federal government and are not convicted of a crime related to the fraud, in an amount of between 15 and 25 (but up to 30 percent in some cases) of what it recovers based upon the whistleblower's report. The relator's share is determined based on the FCA itself, legislative history, Department of Justice guidelines released in 1997, and court decisions. 1986 changes (False Claims Act Amendments () The elimination of the "government possession of information" bar against qui tam lawsuits; The establishment of defendant liability for "deliberate ignorance" and "reckless disregard" of the truth; Restoration of the "preponderance of the evidence" standard for all elements of the claim including damages; Imposition of treble damages and civil fines of $5,000 to $10,000 per false claim; Increased rewards for qui tam plaintiffs of between 15–30 percent of the funds recovered from the defendant; Defendant payment of the successful plaintiff's expenses and attorney's fees, and; Employment protection for whistleblowers including reinstatement with seniority status, special damages, and double back pay. 2009 changes On May 20, 2009, the Fraud Enforcement and Recovery Act of 2009 (FERA) was signed into law. It includes the most significant amendments to the FCA since the 1986 amendments. FERA enacted the following changes: Expanded the scope of potential FCA liability by eliminating the "presentment" requirement (effectively overruling the Supreme Court's opinion in Allison Engine Co. v. United States ex rel. Sanders, 128 S. Ct. 2123 (2008)); Redefined "claim" under the FCA to mean "any request or demand, whether under a contract or otherwise for money or property and whether or not the United States has title to the money or property" that is (1) presented directly to the United States, or (2) "to a contractor, grantee, or other recipient, if the money or property is to be spent or used on the Government's behalf or to advance a Government program or interest" and the government provides or reimburses any portion of the requested funds; Amended the FCA's intent requirement, and now requiring only that a false statement be "material to" a false claim; Expanded conspiracy liability for any violation of the provisions of the FCA; Amended the "reverse false claims" provisions to expand liability
their otherwise $2.25 debut issue at the price of nine cents US. Pencillers Mark Buckingham, Casey Jones, and Howard Porter variously contributed through issue #524 (May 2005), with a handful of issues by other teams also during this time. Writer J. Michael Straczynski and penciller Mike McKone did issues #527–541 (July 2005 – Nov. 2006), with Dwayne McDuffie taking over as writer the following issue, and Paul Pelletier succeeding McKone beginning with #544 (May 2007). As a result of the events of the "Civil War" company-crossover storyline, the Black Panther and Storm temporarily replaced Reed and Susan Richards on the team. During that period, the Fantastic Four also appeared in Black Panther, written by Reginald Hudlin and pencilled primarily by Francis Portela. Beginning with issue #554 (April 2008), writer Mark Millar and penciller Bryan Hitch began what Marvel announced as a sixteen-issue run. Following the summer 2008 crossover storyline, "Secret Invasion", and the 2009 aftermath "Dark Reign", chronicling the U.S. government's assigning of the Nation's security functions to the seemingly reformed supervillain Norman Osborn, the Fantastic Four starred in a five-issue miniseries, Dark Reign: Fantastic Four (May–Sept. 2009), written by Jonathan Hickman, with art by Sean Chen. Hickman took over as the series regular writer as of issue #570 with Dale Eaglesham and later Steve Epting on art. 2010s In the storyline "Three", which concluded in Fantastic Four #587 (cover date March 2011, published January 26, 2011), the Human Torch appears to die stopping a horde of monsters from the other-dimensional Negative Zone. The series ended with the following issue, #588, and relaunched in March 2011 as simply FF. The relaunch saw the team assume a new name, the Future Foundation, adopt new black-and-white costumes, and accept longtime ally Spider-Man as a member. In October 2011, with the publication of FF #11 (cover-dated Dec. 2011), the Fantastic Four series reached its 599th issue. In November 2011, to commemorate the 50th anniversary of the Fantastic Four and of Marvel Comics, the company published the 100-page Fantastic Four #600 (cover-dated Jan. 2012), which returned the title to its original numbering and featured the return of the Human Torch. It revealed the fate of the character of Johnny Storm after issue #587, showing that while he did in fact die, he was resurrected to fight as a gladiator for the entertainment of Annihilus. Storm later formed a resistance force called Light Brigade and defeated Annihilus. Although it was launched as a continuation of the Fantastic Four title, FF continues publication as a separate series. Starting with issue #12, the title focuses upon the youthful members of the Future Foundation, including Franklin and Valeria Richards. In the graphic novel Fantastic Four: Season One, the Fantastic Four is given an updated origin story set in the present day instead of the 1960s. The hardcover compilation debuted at number four on The New York Times Best Seller list for graphic novels. As part of Marvel NOW! Fantastic Four ended with #611, ending Jonathan Hickman's long run on FF titles, and the title was relaunched in November 2012 with the creative team of writer Matt Fraction and artist Mark Bagley. In the new title with its numbering starting at #1, the entire Fantastic Four family explore space together, with the hidden intent for Reed Richards to discover why his powers are fading. Writer James Robinson and artist Leonard Kirk launched a new Fantastic Four series in February 2014 (cover dated April 2014). Robinson later confirmed that Fantastic Four would be cancelled in 2015 with issue #645, saying that "The book is reverting to its original numbers, and the book is going away for a while. I'm moving towards the end of Fantastic Four. I just want to reassure people that you will not leave this book with a bad taste in your mouth." In the aftermath of the "Secret Wars" storyline, the Thing is working with the Guardians of the Galaxy and the Human Torch is acting as an ambassador with the Inhumans. With Franklin's powers restored and Reed having absorbed the power of the Beyonders from Doom, the Richards family is working on travelling through and reconstructing the multiverse, but Peter Parker has purchased the Baxter Building to keep it "safe" until the team is ready to come back together. A new volume for the Fantastic Four was released in August 2018, written by Dan Slott, as part of Marvel's Fresh Start event. The first issue of the new series was met with strong sales, and a positive critical reaction. When the Future Foundation is threatened by the Griever at the End of All Things, Mister Fantastic plays on her ego to convince her to provide him with equipment that will allow him to summon his teammates. When Human Torch and Thing are reunited with Mister Fantastic and Invisible Woman, the other superheroes that were part of the Fantastic Four at some point in their lives also arrived, including unexpectedly, X-Men's Iceman. With the gathered heroes assisted the Fantastic Four into causing so much damage to the Griever's equipment, she is forced to retreat in her final telepod or be trapped in that universe. This left the heroes to salvage components from the broken ship to create their own teleport system to return to their universe. The Fantastic Four and their extended family returned to Earth where they find that Liberteens members Ms. America, 2-D, Hope, and Iceberg have come together as the Fantastix with Ms. America taking the codename of Ms. Fantastix. Following the staged bank robbery that the Wrecking Crew committed and their involvement of being hired to humiliate the Fantastix in public, the Fantastic Four gave the Fantastix their blessing to continue using the Baxter Building while the FF operate in a house on Yancy Street with a dimensionally-transcendental interior. In the storyline Point of Origin, the Fantastic Four entrust Alicia, H.E.R.B.I.E. Franklin and Valerie to protect Earth while they begin their mission to learn a further origin of the cosmic radiation that granted them their powers in the first place, piloting a new space ship called Marvel-2. While in a middle of space adventure to find the origin behind their super power results from a cosmic ray, the Fantastic Four are attacked by a group who believed themselves to be the superheroes of Planet Spyre, the Unparalleled. As both Reed and Sue got separated from the Thing, while Human Torch is revealed to be the soulmate of the Unparalleled member named Sky, they learned the Unparalleled's leader and the Overseer of Planet Spyre, Revos was responsible for the cosmic rays that struck the team on their original trip as he wanted to stop them coming to his planet, and subsequently mutated his people to 'prepare for their return' before trying to eradicate the mutates who are unable to retain their original forms in the same manner as the Thing, accusing the mutates of being "villains and imperfects"; as a result, through his own paranoia and xenophobia, the Overseer himself is responsible for the fateful creation of the Fantastic Four and mutated his entire race to face a non-existent threat. Revos challenges Mr. Fantastic for a fight over their differences, until it has settled and they finally made peace. As the Fantastic Four are about to depart Spyre after helping its citizens clean up the Planet (as well as Reed providing the mutates with a variation of the temporary 'cure' he has created for Ben), Skye join them to learn about Earth and every unseen galaxy. When the incoming Kree-Skrull Empyre occur at the same time when the teen heroes being outlawed, the original Fantastic Four went to space with Avengers to stop this Empyre, leaving Franklin and Valerie being backed by Spider-Man and Wolverine to defend Earth. Spin-offs Ancillary titles and features spun off from the flagship series include the 1970s quarterly Giant-Size Fantastic Four and the 1990s Fantastic Four Unlimited and Fantastic Four Unplugged; Fantastic Force, an 18-issue spinoff (November 1994 – April 1996) featuring an adult Franklin Richards, from a different timeline, as Psi-Lord. A 12-issue series Fantastic Four: The World's Greatest Comics Magazine ran in 2001, paying homage to Stan Lee and Jack Kirby's legendary run. A spinoff title Marvel Knights 4 (April 2004 – August 2006) was written by Roberto Aguirre-Sacasa and initially illustrated by Steve McNiven in his first Marvel work. There have also been numerous limited series featuring the group. In 1996, Marvel launched the series Fantastic Four 2099, part of the company's Marvel 2099 imprint which explored an alternate future of the Marvel Universe. The four protagonists inexplicably find themselves in 2099, with the world believing them to be clones of the original members of the Fantastic Four. The series ran for 8 issues (Jan. – Aug. 1996), serving as a companion to Doom 2099—an original Marvel 2099 title featuring an individual claiming to be the original Victor von Doom. In 2004, Marvel launched Ultimate Fantastic Four. As part of the company's Ultimate Marvel imprint, the series re-imagined the team as teenagers. It ran for 60 issues (Feb. 2004 – Feb. 2009). In 2008, they also launched Marvel Adventures: Fantastic Four, an out-of-continuity series aimed at younger readers. Although it was launched by Marvel as a continuation of the Fantastic Four title in 2011, FF continued publication as a separate series after the regular series resumed in 2012. From issues #12, the title focused on the youthful members of the Future Foundation, including Franklin and Valeria Richards. A second volume was launched as part of Marvel NOW! by Matt Fraction and Mike Allred depicting a substitute Fantastic Four team starring Scott Lang, Medusa, She-Hulk and Ms. Thing. Solo series The Human Torch solo The Human Torch was given a solo strip in Strange Tales in 1962 to bolster the title's sales. The series began in Strange Tales #101 (October 1962), in 12- to 14-page stories plotted by Lee and initially scripted by his brother Larry Lieber, and drawn by penciller Kirby and inker Dick Ayers. Here, Johnny was seen living with his older sister, Susan, in fictional Glenview, Long Island, New York, where he continued high school and, with youthful naiveté, attempted to maintain a "secret identity". In Strange Tales #106 (March 1963), Johnny discovered that his friends and neighbors knew of his dual identity all along from Fantastic Four news reports, but were humoring him. Supporting characters included Johnny's girlfriend, Doris Evans, usually in consternation as Johnny cheerfully flew off to battle bad guys. She was seen again in a 1973 issue of Fantastic Four, having become a heavyset but cheerful wife and mother. Ayers took over the penciling after ten issues, later followed by original Golden Age Human Torch creator Carl Burgos and others. The Fantastic Four made occasional cameo appearances, and the Thing became a co-star with issue #123 (Aug. 1964). The Human Torch shared the split book Strange Tales with fellow feature Doctor Strange for the majority of its run, before being replaced in issue #135 (August 1965) by Nick Fury, Agent of S.H.I.E.L.D. The Silver Age stories were republished in 1974, along with some Golden Age Human Torch stories, in a short-lived ongoing Human Torch series. A later ongoing solo series in Marvel's manga-influenced Tsunami imprint, Human Torch, ran 12 issues (June 2003 – June 2004), by writer Karl Kesel and penciler Skottie Young. The series was followed by the five-issue limited series Spider-Man/Human Torch (March–July 2005), an untold tales team-up arc spanning the course of their friendship. The Thing solo The Thing appeared in two team-up issues of Marvel Feature (#11–12, September–November 1973). Following their success, he was given his own regular team-up title Marvel Two-in-One, co-starring with Marvel heroes not only in the present day but occasionally in other time periods (fighting alongside the World War II-era Liberty Legion in #20 and the 1930s hero Doc Savage in #21, for example) and in alternate realities. The series ran 100 issues (January 1974 – June 1983), with seven summer annuals (1976–1982) and was immediately followed by the solo title The Thing #1–36 (July 1983 – June 1986). Another ongoing solo series, also titled The Thing, ran eight issues (January–August 2006). Invisible Woman solo In April 2019, Marvel Comics announced that it would publish Invisible Woman, a five-issue miniseries written by Mark Waid. This was Sue Storm's first solo title. Adam Hughes drew the cover for Issue #1. Characters The Fantastic Four is formed after four civilian astronauts are exposed to cosmic rays during an unauthorized outer space test flight in an experimental rocket ship designed by Dr. Reed Richards. Pilot Ben Grimm and crew-members Susan Storm and her brother Johnny Storm survive an emergency crash-landing in a field on Earth. Upon exiting the rocket, the four discover they have developed incredible superpowers and decide to use these powers to help others. In the first issue the crew talks about Reed Richards' rocketship flying to the stars. Stan Lee's original synopsis described the crew's plan to fly to Mars, but Lee later shortly afterward wrote that due to "the rate the Communists are progressing in space, maybe we better make this a flight to the STARS, instead of just to Mars, because by the time this mag goes on sale, the Russians may have already MADE a flight to Mars!" In a significant departure from preceding superhero conventions, the Fantastic Four make no effort to maintain secret identities or, until issue #3, to wear superhero costumes, instead maintaining a public profile and enjoying celebrity status for scientific and heroic contributions to society. At the same time, they are often prone to arguing and even fighting with one another. Despite their bickering, the Fantastic Four consistently prove themselves to be "a cohesive and formidable team in times of crisis." While there have been a number of lineup changes to the group, the four characters who debuted in Fantastic Four #1 remain the core and most frequent lineup. They consist of: Mister Fantastic (Reed Richards) - A scientific genius, can stretch, twist and re-shape his body to inhuman proportions. Mr. Fantastic serves as the father figure of the group, and is "appropriately pragmatic, authoritative, and dull". Richards blames himself for the failed space mission, particularly because of how the event transformed pilot Ben Grimm. Stan Lee said the stretch powers were inspired by DC's Plastic Man, which had
Doom. In 2004, Marvel launched Ultimate Fantastic Four. As part of the company's Ultimate Marvel imprint, the series re-imagined the team as teenagers. It ran for 60 issues (Feb. 2004 – Feb. 2009). In 2008, they also launched Marvel Adventures: Fantastic Four, an out-of-continuity series aimed at younger readers. Although it was launched by Marvel as a continuation of the Fantastic Four title in 2011, FF continued publication as a separate series after the regular series resumed in 2012. From issues #12, the title focused on the youthful members of the Future Foundation, including Franklin and Valeria Richards. A second volume was launched as part of Marvel NOW! by Matt Fraction and Mike Allred depicting a substitute Fantastic Four team starring Scott Lang, Medusa, She-Hulk and Ms. Thing. Solo series The Human Torch solo The Human Torch was given a solo strip in Strange Tales in 1962 to bolster the title's sales. The series began in Strange Tales #101 (October 1962), in 12- to 14-page stories plotted by Lee and initially scripted by his brother Larry Lieber, and drawn by penciller Kirby and inker Dick Ayers. Here, Johnny was seen living with his older sister, Susan, in fictional Glenview, Long Island, New York, where he continued high school and, with youthful naiveté, attempted to maintain a "secret identity". In Strange Tales #106 (March 1963), Johnny discovered that his friends and neighbors knew of his dual identity all along from Fantastic Four news reports, but were humoring him. Supporting characters included Johnny's girlfriend, Doris Evans, usually in consternation as Johnny cheerfully flew off to battle bad guys. She was seen again in a 1973 issue of Fantastic Four, having become a heavyset but cheerful wife and mother. Ayers took over the penciling after ten issues, later followed by original Golden Age Human Torch creator Carl Burgos and others. The Fantastic Four made occasional cameo appearances, and the Thing became a co-star with issue #123 (Aug. 1964). The Human Torch shared the split book Strange Tales with fellow feature Doctor Strange for the majority of its run, before being replaced in issue #135 (August 1965) by Nick Fury, Agent of S.H.I.E.L.D. The Silver Age stories were republished in 1974, along with some Golden Age Human Torch stories, in a short-lived ongoing Human Torch series. A later ongoing solo series in Marvel's manga-influenced Tsunami imprint, Human Torch, ran 12 issues (June 2003 – June 2004), by writer Karl Kesel and penciler Skottie Young. The series was followed by the five-issue limited series Spider-Man/Human Torch (March–July 2005), an untold tales team-up arc spanning the course of their friendship. The Thing solo The Thing appeared in two team-up issues of Marvel Feature (#11–12, September–November 1973). Following their success, he was given his own regular team-up title Marvel Two-in-One, co-starring with Marvel heroes not only in the present day but occasionally in other time periods (fighting alongside the World War II-era Liberty Legion in #20 and the 1930s hero Doc Savage in #21, for example) and in alternate realities. The series ran 100 issues (January 1974 – June 1983), with seven summer annuals (1976–1982) and was immediately followed by the solo title The Thing #1–36 (July 1983 – June 1986). Another ongoing solo series, also titled The Thing, ran eight issues (January–August 2006). Invisible Woman solo In April 2019, Marvel Comics announced that it would publish Invisible Woman, a five-issue miniseries written by Mark Waid. This was Sue Storm's first solo title. Adam Hughes drew the cover for Issue #1. Characters The Fantastic Four is formed after four civilian astronauts are exposed to cosmic rays during an unauthorized outer space test flight in an experimental rocket ship designed by Dr. Reed Richards. Pilot Ben Grimm and crew-members Susan Storm and her brother Johnny Storm survive an emergency crash-landing in a field on Earth. Upon exiting the rocket, the four discover they have developed incredible superpowers and decide to use these powers to help others. In the first issue the crew talks about Reed Richards' rocketship flying to the stars. Stan Lee's original synopsis described the crew's plan to fly to Mars, but Lee later shortly afterward wrote that due to "the rate the Communists are progressing in space, maybe we better make this a flight to the STARS, instead of just to Mars, because by the time this mag goes on sale, the Russians may have already MADE a flight to Mars!" In a significant departure from preceding superhero conventions, the Fantastic Four make no effort to maintain secret identities or, until issue #3, to wear superhero costumes, instead maintaining a public profile and enjoying celebrity status for scientific and heroic contributions to society. At the same time, they are often prone to arguing and even fighting with one another. Despite their bickering, the Fantastic Four consistently prove themselves to be "a cohesive and formidable team in times of crisis." While there have been a number of lineup changes to the group, the four characters who debuted in Fantastic Four #1 remain the core and most frequent lineup. They consist of: Mister Fantastic (Reed Richards) - A scientific genius, can stretch, twist and re-shape his body to inhuman proportions. Mr. Fantastic serves as the father figure of the group, and is "appropriately pragmatic, authoritative, and dull". Richards blames himself for the failed space mission, particularly because of how the event transformed pilot Ben Grimm. Stan Lee said the stretch powers were inspired by DC's Plastic Man, which had no equivalent in Marvel. Invisible Girl/Invisible Woman (Susan Storm) - Reed Richards' girlfriend (and eventual wife) has the ability to bend and manipulate light to render herself and others invisible. Stan Lee did not want Sue to have superstrength, "to be Wonder Woman and punch people", so eventually he came to invisibility, inspired by works such as The Invisible Man. She later develops the ability to generate invisible force fields, which she uses for a variety of defensive and offensive effects. Human Torch (Johnny Storm) - Sue Storm's younger brother, possesses the ability to control fire, allowing him to project fire from his body, as well as the power to fly. This character was loosely based on a Human Torch character published by Marvel's predecessor Timely Comics in the 1940s, an android that could ignite itself. Lee said that when he conceptualized the character, "I thought it was a shame that we didn't have The Human Torch anymore, and this was a good chance to bring him back". Unlike the teen sidekicks that preceded him, the Human Torch in the early stories was "a typical adolescent — brash, rebellious, and affectionately obnoxious." Johnny Storm was killed in the 2011 storyline "Three", before being brought back and rejoining the reformed Fantastic Four. Thing (Ben Grimm) - Reed Richards' college roommate and best friend, has been transformed into a monstrous, orange, rock-like humanoid possessing high levels of superhuman strength and durability. The Thing is often filled with anger, self-loathing and self-pity over his new existence. He serves as "an uncle figure, a long-term friend of the family with a gruff Brooklyn manner, short temper, and caustic sense of humor". In the original synopsis Lee gave to Kirby, The Thing was intended as "the heavy", but over the years, the character has become "the most lovable group member: honest, direct and free of pretension". Lee said his original pitch to Kirby stated that The Thing was "someone who turned into a monster" and is bitter because unlike the other three he cannot change back to a normal appearance. The Fantastic Four has had several headquarters, most notably the Baxter Building, located at 42nd Street and Madison Avenue in New York City. The Baxter Building was replaced by Four Freedoms Plaza at the same location after its destruction at the hands of Kristoff Vernard, adopted son of the team's seminal foe Doctor Doom (prior to the completion of Four Freedoms Plaza, the team took up temporary residence at Avengers Mansion). Pier 4, a waterfront warehouse, served as a temporary headquarters after Four Freedoms Plaza was destroyed by the ostensible superhero team the Thunderbolts shortly after the revelation that they were actually the supervillain team the Masters of Evil in disguise. Pier 4 was eventually destroyed during a battle with the longtime Fantastic Four supervillain Diablo, after which the team received a new Baxter Building, courtesy of one of team leader Reed Richards' former professors, Noah Baxter. This second Baxter Building was constructed in Earth's orbit and teleported into the vacant lot formerly occupied by the original. Supporting characters Allies and supporting characters A number of characters are closely affiliated with the team, share complex personal histories with one or more of its members but have never actually held an official membership. Some of these characters include, but are not limited to: Namor the Sub-Mariner (previously an antagonist), Alicia Masters, Lyja the Lazerfist, H.E.R.B.I.E., Kristoff Vernard (Doctor Doom's former protégé), Wyatt Wingfoot, Sue and Johnny's father Franklin Storm, the receptionist android Roberta, governess Agatha Harkness, and Reed and Sue's children Franklin Richards and Valeria Richards. Several allies of the Fantastic Four have served as temporary members of the team, including Crystal, Medusa, Power Man (Luke Cage), Nova (Frankie Raye), She-Hulk, Ms. Marvel (Sharon Ventura), Ant-Man (Scott Lang), Namorita, Storm, and the Black Panther. A temporary lineup from Fantastic Four #347–349 (December 1990 – February 1991) consisted of the Hulk (in his "Joe Fixit" persona), Spider-Man, Wolverine, and Ghost Rider. Other notable characters who have been involved with the Fantastic Four include Alyssa Moy, Caledonia (Alysande Stuart of Earth-9809), Fantastic Force, the Inhumans (particularly the royal family members Black Bolt, Crystal, Medusa, Gorgon, Karnak, Triton, and Lockjaw), Reed's father Nathaniel Richards, the Silver Surfer (previously an antagonist), Thundra, postal worker Willie Lumpkin, Baxter Building landlord Walter Collins, the Thing's rivals the Yancy Street Gang and Uatu the Watcher. Author Christopher Knowles states that Kirby's work on creations such as the Inhumans and the Black Panther served as "a showcase of some of the most radical concepts in the history of the medium". Antagonists Writers and artists over many years have created a variety of characters to challenge the Fantastic Four. Knowles states that Kirby helped to create "an army of villains whose rage and destructive power had never been seen before," and "whose primary impulse is to smash the world." Some of the team's oldest and most frequent enemies have involved such foes as the Mole Man, the Skrulls, Namor the Sub-Mariner, Doctor Doom, the Puppet Master, Kang the Conqueror/Rama-Tut/Immortus, Blastaar, the Frightful Four, Annihilus, Galactus, and Klaw. Other prominent antagonists of the Fantastic Four have included the Wizard, the Impossible Man, the Red Ghost and the Super-Apes, the Mad Thinker, the Super-Skrull, the Molecule Man, Diablo, Dragon Man, Psycho-Man, Ronan the Accuser, Salem's Seven, Terrax the Tamer, Terminus, Hyperstorm, and Lucia von Bardas. Fantastic Four Incorporated Fantastic Four Incorporated, also known as Fantastic Enterprises, is a fictional organization appearing in American comic books published by Marvel Comics. It was founded by Reed Richards to license use of Richard's patents and funded the Fantastic Four's operation and their source of income. Staff are: Susan Richards (Invisible Woman) - CEO of Fantastic Four Inc. Johnny Storm (Human Torch) - made COO by Susan to give him some work ethic. Christi Stoger - with Ethan Crane, tried to frame Johnny Storm for a screw-up to get themselves promoted Ethan Crane - with Christi Stoger, tried to frame Johnny Storm for a screw-up to get themselves promoted Jian Feeta - Johnny's Personal Assistant Bethany Palmer - assisted out of abusive relationship with ex-husband, Jeff, by the Invisible Woman Jed Schultz - informed Reed about the embezzlement of their funds Margaret Kofpulski Cultural impact The Fantastic Four's characterization was initially different from all other superheroes at the time. One major difference is that they do not conceal their identities, leading the public to be both suspicious and in awe of them. Also, they frequently argued and disagreed with each other, hindering their work as a team. Described as "heroes with hangups" by Stan Lee, the Thing has a temper, and the Human Torch resents being a child among adults. Mr. Fantastic blames himself for the Thing's transformation. Social scientist Bradford W. Wright describes the team as a "volatile mix of human emotions and personalities". In spite of their disagreements, they ultimately function well as a team. The first issue of The Fantastic Four proved a success, igniting a new direction for superhero comics and soon influencing many other superhero comics. Readers grew fond of Ben's grumpiness, Johnny's tendency to annoy others and Reed and Sue's spats. Stan Lee was surprised at the reaction to the first issue, leading him to stay in the comics field despite previous plans to leave. Comics historian Stephen Krensky said that "Lee's natural dialogue and flawed characters appealed to 1960s kids looking to 'get real'". As of 2005, 150 million comics featuring the Fantastic Four had been sold. In other media There have been four The Fantastic Four animated TV series and three released feature films. The Fantastic Four also guest-starred in the "Secret Wars" story arc of the 1990s Spider-Man animated series, and the Thing guest-starred (with a small cameo from the other Fantastic Four members) in the "Fantastic Fortitude" episode of the 1996 The Incredible Hulk series. The Fantastic Four also appeared in the 2010 series The Avengers: Earth's Mightiest Heroes. There was a short-lived radio show in 1975 that adapted early Lee/Kirby stories and is notable for casting a pre-Saturday Night Live Bill Murray as the Human Torch. Also in the cast were Bob Maxwell as Reed Richards, Cynthia Adler as Sue Storm, Jim Pappas as Ben Grimm and Jerry Terheyden as Doctor Doom. Other Marvel characters featured in the series included Ant-Man, Prince Namor, Nick Fury and the Hulk. Stan Lee narrated the series and the scripts were taken almost verbatim from the comic books. The radio show was packaged into five-minute segments, with five segments comprising a complete adventure. The team appeared on the Power Records album Fantastic Four: "The Way It Began" book and record set, an audio dramatization of Fantastic Four #126. Television The Fantastic Four has been the subject of four animated television series. The first, Fantastic Four, produced by Hanna-Barbera, ran 20 episodes on ABC from September 9, 1967 to September 21, 1968. The second Fantastic Four series, produced by DePatie-Freleng, ran 13 episodes from September 9, 1978, to December 16, 1978; this series features a H.E.R.B.I.E. Unit in place of the Human Torch. In 1979, the Thing was featured as half of the Saturday morning cartoon Fred and Barney Meet the Thing. The character of the Thing received a radical make-over for the series. The title character for this program was Benjy Grimm, a teenage boy who possessed a pair of magic Thing-rings which could transform him into the Thing when he put them together and said "Thing-rings, do your thing!" The other members of the Fantastic Four do not appear in the series, nor do the animated The Flintstones stars Fred Flintstone and Barney Rubble, despite the title of the program. The third Fantastic Four was broadcast as part of The Marvel Action Hour umbrella, with introductions by Stan Lee. This series ran 26 episodes from September 24, 1994 to February 24, 1996. The fourth series, Fantastic Four: World's Greatest Heroes, debuted on September 2, 2006, on Cartoon Network and ran for 26 episodes. Different Fantastic Four members appear briefly and with little or no dialogue and are mentioned various times throughout the first season of The Avengers: Earth's Mightiest Heroes. The most expansive appearances are in the episode "The Private War of Doctor Doom", in which the Avengers team up with the Fantastic Four to battle the titular supervillain, and in the final episode of season two, in which the groups team up to battle Galactus. The Thing becomes a member of the New Avengers in episode 23 of season 2. The Fantastic Four appear in the Hulk and the Agents of S.M.A.S.H. episode "Monster No More." The Agents of S.M.A.S.H. assist the Fantastic Four in thwarting the Tribbitite Invasion. Film A film adaptation of the characters, The Fantastic Four, was completed in 1994 by producer Roger Corman and starred Alex Hyde-White as Reed Richards/Mr. Fantastic, Rebecca Staab as Sue Storm-Richards/Invisible Woman, Jay Underwood as Johnny Storm/Human Torch, Michael Bailey Smith as Ben Grimm and Carl Ciarfalio as The Thing and Joseph Culp as Victor von Doom/Doctor Doom. The film was not released to theaters or on home video, but it has since been made available through bootleg video distributors. It was made because Constantin Film owned the film rights and would have lost them if it failed to begin production by a certain deadline, a tactic known as creating an ashcan copy. According to producer Bernd Eichinger, Avi Arad had Marvel purchase the film for a few million dollars. In 2005, the second film adaptation, Fantastic Four directed by Tim Story, was released by 20th Century Fox. Despite mixed reviews from critics, it earned US$155 million in North America and $330 million worldwide. The sequel, Fantastic Four: Rise of the Silver Surfer, directed by Story and written by Don Payne, was released in 2007. Despite mixed-to-negative reviews, the sequel earned $132 million in North America and a total of $330.6 million worldwide. Both films feature Ioan Gruffudd as Reed Richards / Mr. Fantastic, Jessica Alba as Susan Storm / Invisible Woman, Chris Evans as Johnny Storm / Human Torch, Michael Chiklis as Ben Grimm / The Thing, and Julian McMahon as Victor Von Doom / Dr. Doom. Stan Lee makes cameo appearances as the mailman Willie Lumpkin in the first film and as himself in the second film. A reboot directed by Josh Trank (also titled Fantastic Four, but stylized as Fant4stic) was released on August 7, 2015. The film stars Miles Teller as Reed Richards, Kate Mara as Sue Storm, Michael B. Jordan as Johnny Storm, Jamie Bell as Ben Grimm and Toby Kebbell as Doctor Doom. It is based on Ultimate Fantastic Four. It earned poor reviews and box office results. On March 20, 2019, due to the acquisition of 21st Century Fox by Disney, the film rights of Fantastic Four reverted to Marvel Studios. In
the funnel, Büchner flask, and rubber tubing to connect to vacuum source. Filter media Filter media are the materials used to do the separation of materials. Two main types of filter media are employed in laboratories: surface filters, which are solid sieves which trap the solid particles, with or without the aid of filter paper (e.g. Büchner funnel, belt filter, rotary vacuum-drum filter, cross-flow filters, screen filter), and depth filters, a bed of granular material which retains the solid particles as they pass (e.g. sand filter). The surface filter type allows the solid particles, i.e. the residue, to be collected intact; the depth filter does not permit this. However, the depth filter is less prone to clogging due to the greater surface area where the particles can be trapped. Also, when the solid particles are very fine, it is often cheaper and easier to discard the contaminated granules than to clean the solid sieve. Filter media can be cleaned by rinsing with solvents or detergents or backwashing. Alternatively, in engineering applications, such as swimming pool water treatment plants, they may be cleaned by backwashing. Self-cleaning screen filters utilize point-of-suction backwashing to clean the screen without interrupting system flow. Achieving flow through the filter Fluids flow through a filter due to a difference in pressure—fluid flows from the high-pressure side to the low-pressure side of the filter. The simplest method to achieve this is by gravity and can be seen in the coffeemaker example. In the laboratory, pressure in the form of compressed air on the feed side (or vacuum on the filtrate side) may be applied to make the filtration process faster, though this may lead to clogging or the passage of fine particles. Alternatively, the liquid may flow through the filter by the force exerted by a pump, a method commonly used in industry when a reduced filtration time is important. In this case, the filter need not be mounted vertically. Filter aid Certain filter aids may be used to aid filtration. These are often incompressible diatomaceous earth, or kieselguhr, which is composed primarily of silica. Also used are wood cellulose and other inert porous solids such as the cheaper and safer perlite. Activated carbon is often used in industrial applications that require changes in the filtrates properties, such as altering color or odor. These filter aids can be used in two different ways. They can be used as a precoat before the slurry is filtered. This will prevent gelatinous-type solids from plugging the filter medium and also give a clearer filtrate. They can also be added to the slurry before filtration. This increases the porosity of the cake and reduces resistance of the cake during filtration. In a rotary filter, the filter aid may be applied as a precoat; subsequently, thin slices of this layer are sliced off with the cake. The use of filter aids is usually limited to cases where the cake is discarded or where the precipitate can be chemically separated from the filter. Alternatives Filtration is a more efficient method for the separation of mixtures than decantation, but is much more time-consuming. If very small amounts of solution are involved, most of the solution may be soaked up by the filter medium. An alternative to filtration is centrifugation—instead of filtering the mixture of solid and liquid particles, the mixture is centrifuged to force the (usually) denser solid to the bottom, where it often forms a firm cake. The liquid above can then be decanted. This method is especially useful for separating solids which do not filter well, such as gelatinous or fine particles. These solids can clog or pass through the filter, respectively. Biological filtration Biological filtration may take place inside an organism, or the biological component may be grown on a medium in the material being filtered. Removal of solids, emulsified components, organic chemicals and ions may be achieved by ingestion and digestion, adsorption or absorption. Because of the complexity of biological interactions, especially in multi-organism communities, it is often not possible to determine which processes are achieving the filtration result. At the molecular level, it may often by individual catalytic enzyme actions within an individual organisms. The waste products of sone organisms may subsequently broken down by other organisms to extract as much energy as possible and in so doing reducing complex organic molecules to very simple inorganic
cool it down slowly in the room temperature. This technique results to the formation of very small crystals as opposed to getting large crystals by cooling the solution down at room temperature. Vacuum filtration technique is mostly preferred for small batches of solution in order to quickly dry out small crystals. This method requires a Büchner funnel, filter paper of smaller diameter than the funnel, Büchner flask, and rubber tubing to connect to vacuum source. Filter media Filter media are the materials used to do the separation of materials. Two main types of filter media are employed in laboratories: surface filters, which are solid sieves which trap the solid particles, with or without the aid of filter paper (e.g. Büchner funnel, belt filter, rotary vacuum-drum filter, cross-flow filters, screen filter), and depth filters, a bed of granular material which retains the solid particles as they pass (e.g. sand filter). The surface filter type allows the solid particles, i.e. the residue, to be collected intact; the depth filter does not permit this. However, the depth filter is less prone to clogging due to the greater surface area where the particles can be trapped. Also, when the solid particles are very fine, it is often cheaper and easier to discard the contaminated granules than to clean the solid sieve. Filter media can be cleaned by rinsing with solvents or detergents or backwashing. Alternatively, in engineering applications, such as swimming pool water treatment plants, they may be cleaned by backwashing. Self-cleaning screen filters utilize point-of-suction backwashing to clean the screen without interrupting system flow. Achieving flow through the filter Fluids flow through a filter due to a difference in pressure—fluid flows from the high-pressure side to the low-pressure side of the filter. The simplest method to achieve this is by gravity and can be seen in the coffeemaker example. In the laboratory, pressure in the form of compressed air on the feed side (or vacuum on the filtrate side) may be applied to make the filtration process faster, though this may lead to clogging or the passage of fine particles. Alternatively, the liquid may flow through the filter by the force exerted by a pump, a method commonly used in industry when a reduced filtration time is important. In this case, the filter need not be mounted vertically. Filter aid Certain filter aids may be used to aid filtration. These are often incompressible diatomaceous earth, or kieselguhr, which is composed primarily of silica. Also used are wood cellulose and other inert porous solids such as the cheaper and safer perlite. Activated carbon is often used in industrial applications that require changes in the filtrates properties, such as altering color or odor. These filter aids can be used in two different ways. They can be used as a precoat before the slurry is filtered. This will prevent gelatinous-type solids from plugging the filter medium and also give a clearer filtrate. They can also be added to the slurry before filtration. This increases the porosity of the cake and reduces resistance of the cake during filtration. In a rotary filter, the filter aid may be applied as a precoat; subsequently, thin slices of this layer are sliced off with the cake. The use of filter aids is usually limited to cases where the cake is discarded or where the precipitate can be chemically separated from the filter. Alternatives Filtration is a more efficient method for the separation of mixtures than decantation, but is much more time-consuming. If very small amounts of solution are involved, most of the solution may be soaked up by the filter medium. An alternative to filtration is centrifugation—instead of filtering the mixture of solid and liquid particles, the mixture is centrifuged to force the (usually) denser solid to the bottom, where it often forms a firm cake. The liquid above can then be decanted. This method is especially useful for separating solids which do not filter well, such as gelatinous or fine particles. These solids can clog or pass through the filter, respectively. Biological filtration Biological filtration may take place inside an organism, or the biological component may be grown on a medium in the material being filtered. Removal of solids, emulsified components, organic chemicals and ions may be achieved by ingestion and digestion, adsorption or absorption. Because of the complexity of biological interactions, especially in multi-organism communities, it is often not possible to determine which processes are achieving the filtration result. At the molecular level, it may often by individual catalytic enzyme actions within an individual organisms. The waste products of sone organisms may subsequently broken down by other organisms to extract as much energy as possible and in so doing reducing complex organic molecules to very simple inorganic species such as water, carbon dioxide and nitrogen. Excretion Inside mammals reptile and birds, the kidneys function by renal filtration in which the glomerulus selectively removes undesirable constituents such as Urea, followed by selective reabsorption of many substances essential for the body to maintain homeostasis. The complete process is termed excretion. Similar but often less complex solutions are deployed in all animals even the Protozoa where the contractile vacuole provides a similar function. Biofilms Biofilms are often complex communities of bacteria, phages, yeasts and often more complex organisms including protozoa, Rotifers and Annelids which form dynamic and complex, frequently gelatinous films on wet substrates. Such biofilms coat the rocks of most rivers and the sea and they provide the key filtration capability of the Schmutzdecke on the surface of slow sand filters and the film on the filter media of trickling filters which are used to create potable water and treat sewage respectively. Filter feeders Filter feeders are organisms that obtain their food by filtering their, generally aquatic, environment. Many of the protozoa are filter feeders using a range of adaptations including rigid spikes of protoplasm held in the water flow as in the Suctoria to various arrangements of beating Cillia to direct particles to the mouth including organisms such as Vorticella which have a complex ring of cilia which create a vortex in the flow drafting particles into the oral cavity. Similar feeding techniques are used by the Rotifera and the Ectoprocta. Many aquatic arthropods are filter feeders . Some use rhythmical beating of abdominal limbs to create a water current to the mouth whilst the hairs on the legs trap any particle. Other such as some caddis flies spin fine webs in the water flow to trap particles. Applications and examples Many filtration processes include more than one filtration mechanism, and particulates are often removed from the fluid first to prevent clogging of downstream elements. Particulate filtration includes: The coffee filter to separate the coffee infusion from the grounds. HEPA filters in air conditioning to remove particles from air. Belt filters to extract precious metals in mining. Vertical plate filter such as those used in Merrill–Crowe process.
have been ("The Road You Didn't Take"). Sally tells Ben how her days have been spent with Buddy, trying to convince him (and herself) ("In Buddy's Eyes"). However, it is clear that Sally is still in love with Ben – even though their affair ended badly when Ben decided to marry Phyllis. She shakes loose from the memory and begins to dance with Ben, who is touched by the memory of the Sally he once cast aside. Phyllis interrupts this tender moment and has a biting encounter with Sally. Before she has a chance to really let loose, they are both called on to participate in another performance – Stella Deems and the ex-chorines line up to perform an old number ("Who's That Woman?"), as they are mirrored by their younger selves. Afterwards, Phyllis and Ben angrily discuss their lives and relationship, which has become numb and emotionless. Sally is bitter and has never been happy with Buddy, although he has always adored her. She accuses him of having affairs while he is on the road, and he admits he has a steady girlfriend, Margie, in another town, but always returns home. Carlotta amuses a throng of admirers with a tale of how her dramatic solo was cut from the Follies because the audience found it humorous, transforming it as she sings it into a toast to her own hard-won survival ("I'm Still Here"). Ben confides to Sally that his life is empty. She yearns for him to hold her, but young Sally slips between them and the three move together ("Too Many Mornings"). Ben, caught in the passion of memories, kisses Sally as Buddy watches from the shadows. Sally thinks this is a sign that the two will finally get married, and Ben is about to protest until Sally interrupts him with a kiss and runs off to gather her things, thinking that the two will leave together. Buddy leaves the shadows furious, and fantasizes about the girl he should have married, Margie, who loves him and makes him feel like "a somebody", but bitterly concludes he does not love her back ("The Right Girl"). He tells Sally that he's done, but she is lost in a fantasy world and tells him that Ben has asked her to marry him. Buddy tells her she must be either crazy or drunk, but he's already supported Sally through rehab clinics and mental hospitals and cannot take any more. Ben drunkenly propositions Carlotta, with whom he once had a fling, but she has a young lover and coolly turns him down. Heidi Schiller, joined by her younger counterpart, performs "One More Kiss", her aged voice a stark contrast to the sparkling coloratura of her younger self. Phyllis kisses a waiter and confesses to him that she had always wanted a son. She then tells Ben that their marriage can't continue the way it has been. Ben replies by saying that he wants a divorce, and Phyllis assumes the request is due to his love for Sally. Ben denies this, but still wants Phyllis out. Angry and hurt, Phyllis considers whether to grant his request ("Could I Leave You?"). Phyllis begins wondering at her younger self, who worked so hard to become the socialite that Ben needed. Ben yells at his younger self for not appreciating all the work that Phyllis did. Both Buddys enter to confront the Bens about how they stole Sally. Sally and her younger self enter and Ben firmly tells Sally that he never loved her. All the voices begin speaking and yelling at each other. Suddenly, at the peak of madness and confusion, the couples are engulfed by their follies, which transform the rundown theater into a fantastical "Loveland", an extravaganza even more grand and opulent than the gaudiest Weismann confection: "the place where lovers are always young and beautiful, and everyone lives only for love". Sally, Phyllis, Ben, and Buddy show their "real and emotional lives" in "a sort of group nervous breakdown". What follows is a series of musical numbers performed by the principal characters, each exploring their biggest desires. The two younger couples sing in a counterpoint of their hopes for the future ("You're Gonna Love Tomorrow/Love Will See Us Through"). Buddy then appears, dressed in "plaid baggy pants, garish jacket, and a shiny derby hat", and performs a high-energy vaudeville routine depicting how he is caught between his love for Sally and Margie's love for him ("The God-Why-Don't-You-Love-Me Blues"). Sally appears next, dressed as a torch singer, singing of her passion for Ben from the past - and her obsession with him now ("Losing My Mind"). In a jazzy dance number, accompanied by a squadron of chorus boys, Phyllis reflects on the two sides of her personality, one naive and passionate and the other jaded and sophisticated and her desire to combine them ("The Story of Lucy and Jessie"). Resplendent in top hat and tails, Ben begins to offer his devil-may-care philosophy ("Live, Laugh, Love"), but stumbles and anxiously calls to the conductor for the lyrics, as he frantically tries to keep going. Ben becomes frenzied, while the dancing ensemble continues as if nothing was wrong. Amidst a deafening discord, Ben screams at all the figures from his past and collapses as he cries out for Phyllis. "Loveland" has dissolved back into the reality of the crumbling and half-demolished theater; dawn is approaching. Ben admits to Phyllis his admiration for her, and Phyllis shushes him and helps Ben regain his dignity before they leave. After exiting, Buddy escorts the emotionally devastated Sally back to their hotel with the promise to work things out later. Their ghostly younger selves appear, watching them go. The younger Ben and Buddy softly call to their "girls upstairs", and the Follies end. Songs Source: Follies score "Prologue" – Orchestra "Overture" – Orchestra "Beautiful Girls" – Roscoe and Company "Don't Look at Me" – Sally and Ben "Waiting for the Girls Upstairs" – Ben, Sally, Phyllis and Buddy, Young Ben, Young Sally, Young Phyllis and Young Buddy "Montage" ("Rain on the Roof"/"Ah, Paris!"/"") – Emily, Theodore, Solange, and Hattie "The Road You Didn't Take" – Ben "Bolero d'Amour" – Danced by Vincent and Vanessa ≠≠ "In Buddy's Eyes" – Sally "Who's That Woman?" – Stella and Company "I'm Still Here" – Carlotta "Too Many Mornings" – Ben and Sally "The Right Girl" – Buddy "One More Kiss" – Heidi and Young Heidi "Could I Leave You?" – Phyllis "Loveland" – Company "You're Gonna Love Tomorrow" / "Love Will See Us Through" – Young Ben, Young Sally, Young Phyllis and Young Buddy "The God-Why-Don't-You-Love-Me Blues" – Buddy, "Margie", "Sally" "Losing My Mind" – Sally "The Story of Lucy and Jessie" ≠ – Phyllis and backup male dancers "Live, Laugh, Love" – Ben and Company "Chaos" – Ben and Company "Finale" – Young Buddy and Young Ben ≠ Some productions substitute "Ah, but Underneath" when the actress portraying Phyllis is not primarily a dancer. ≠≠ Omitted from some productions Note: This is the song list from the original Broadway production in 1971. Variations are discussed in Versions. Songs cut before the Broadway premiere include "All Things Bright and Beautiful" (used in the prologue), "Can That Boy Foxtrot!", "Who Could Be Blue?", "Little White House", "So Many People", "It Wasn't Meant to Happen", "Pleasant Little Kingdom", and "Uptown Downtown". The musical numbers "Ah, but Underneath" (replacing "The Story of Lucy and Jessie"), "Country House", "Make the Most of Your Music" (replacing "Live, Laugh, Love"), "Social Dancing" and a new version of "Loveland" have been incorporated into various productions. Analysis Hal Prince said: "Follies examines obsessive behavior, neurosis and self-indulgence more microscopically than anything I know of." Bernadette Peters quoted Sondheim on the character of "Sally": "He said early on that [Sally] is off-balance, to put it mildly. He thinks she's very neurotic, and she is very neurotic, so he said to me 'Congratulations. She's crazy. Martin Gottfried wrote: "The concept behind Follies is theatre nostalgia, representing the rose-colored glasses through which we face the fact of age ... the show is conceived in ghostliness. At its very start, ghosts of Follies showgirls stalk the stage, mythic giants in winged, feathered, black and white opulence. Similarly, ghosts of the Twenties shows slip through the evening as the characters try desperately to regain their youth through re-creations of their performances and inane theatre sentiments of their past." Joanne Gordon, author and chair and artistic director, Theatre, at California State University, Long Beach, wrote "Follies is in part an affectionate look at the American musical theatre between the two World Wars and provides Sondheim with an opportunity to use the traditional conventions of the genre to reveal the hollowness and falsity of his characters' dreams and illusions. The emotional high generated by the reunion of the Follies girls ultimately gives way to anger, disappointment, and weary resignation to reality." "Follies contains two scores: the Follies pastiche numbers and the book numbers." Some of the Follies numbers imitate the style of particular composers of the early 20th century: "Losing My Mind" is in the style of a George Gershwin ballad "The Man I Love". Sondheim noted that the song "The God-Why-Don't-You-Love-Me Blues" is "another generic pastiche: vaudeville music for chases and low comics, but with a patter lyric ... I tried to give it the sardonic knowingness of Lorenz Hart or Frank Loesser." "Loveland", the final musical sequence, (that "consumed the last half-hour of the original" production) is akin to an imaginary 1941 Ziegfeld Follies sequence, with Sally, Phyllis, Ben and Buddy performing "like comics and torch singers from a Broadway of yore." "Loveland" features a string of vaudeville-style numbers, reflecting the leading characters' emotional problems, before returning to the theater for the end of the reunion party. The four characters are "whisked into a dream show in which each acts out his or her own principal 'folly. Versions Goldman continued to revise the book of the musical right up to his death, which occurred shortly before the 1998 Paper Mill Playhouse production. Sondheim, too, has added and removed songs that he judged to be problematic in various productions. Ted Chapin explains: "Today, Follies is rarely performed twice in exactly the same version. James Goldman's widow made the observation that the show has morphed throughout its entire life ... The London production had new songs and dialogue. The Paper Mill Playhouse production used some elements from London but stayed close to the original. The 2001 Roundabout Broadway revival, the first major production following Goldman's death in 1998, was again a combination of previous versions." Major changes were made for the original production in London, which attempted to establish a lighter tone and favored a happier ending than the original Broadway production. According to Joanne Gordon, "When Follies opened in London ... it had an entirely different, and significantly more optimistic, tone. Goldman's revised book offered some small improvements over the original." According to Sondheim, the producer Cameron Mackintosh asked for changes for the 1987 London production. "I was reluctantly happy to comply, my only serious balk being at his request that I cut "The Road You Didn't Take" ... I saw no reason not to try new things, knowing we could always revert to the original (which we eventually did). The net result was four new songs ... For reasons which I've forgotten, I rewrote "Loveland" for the London production. There were only four showgirls in this version, and each one carried a shepherd's crook with a letter of the alphabet on it." The musical was written in one act, and the original director, Prince, did not want an intermission, while the co-director, Bennett, wanted two acts. It originally was performed in one act. The 1987 West End, 2005 Barrington Stage Company, the 2001 Broadway revival and Kennedy Center 2011 productions were performed in two acts. However, August 23, 2011, Broadway preview performance was performed without an intermission. By opening, the 2011 Broadway revival was performed with the intermission, in two acts. The 2017 National Theatre production is performed without an interval. Productions 1971 original Broadway Follies had its pre-Broadway tryout at the Colonial Theatre, Boston, from February 20 through March 20, 1971. Follies premiered on Broadway on April 4, 1971, at the Winter Garden Theatre. It was directed by Harold Prince and Michael Bennett, with choreography by Bennett, scenic design by Boris Aronson, costumes by Florence Klotz, and lighting by Tharon Musser. It starred Alexis Smith (Phyllis), John McMartin (Ben), Dorothy Collins (Sally), Gene Nelson (Buddy), along with several veterans of the Broadway and vaudeville stage. The supporting role of Carlotta was created by Yvonne De Carlo and usually is given to a well-known veteran performer who can belt out a song. Other notable performers in the original productions were Fifi D'Orsay as Solange LaFitte, Justine Johnston as Heidi Schiller, Mary McCarty as Stella Deems, Arnold Moss as Dimitri Weismann, Ethel Shutta as Hattie Walker, and Marcie Stringer and Charles Welch as Emily and Theodore Whitman. The show closed on July 1, 1972, after 522 performances and 12 previews. According to Variety, the production was a "total financial failure, with a cumulative loss of $792,000." Prince planned to present the musical on the West Coast and then on a national tour. However, the show did not do well in its Los Angeles engagement and plans for a tour ended. Frank Rich, for many years the chief drama critic for The New York Times, had first garnered attention, while an undergraduate at Harvard University, with a lengthy essay for the Harvard Crimson about the show, which he had seen during its pre-Broadway run in Boston. He predicted that the show eventually would achieve recognition as a Broadway classic. Rich later wrote that audiences at the original production were baffled and restless. For commercial reasons, the cast album was cut from two LPs to one early in production. Most songs were therefore heavily abridged and several were left entirely unrecorded. According to Craig Zadan, "It's generally felt that ... Prince made a mistake by giving the recording rights of Follies to Capitol Records, which in order to squeeze the unusually long score onto one disc, mutilated the songs by condensing some and omitting others." Chapin confirms this: "Alas ... final word came from Capitol that they would not go for two records ... [Dick Jones] now had to propose cuts throughout the score in consultation with Steve." "One More Kiss" was omitted from the final release but was restored for CD release. Chapin relates that "there was one song that Dick Jones [producer of the cast album] didn't want to include on the album but which Steve Sondheim most definitely did. The song was "One More Kiss", and the compromise was that if there was time, it would be recorded, even if Jones couldn't promise it would end up on the album. (It did get recorded but didn't make its way onto the album until the CD reissue years later.)" 1972 Los Angeles The musical was produced at The Muny, St. Louis, Missouri in July 1972 and then transferred to the Shubert Theatre, Century City, California, running from July 22, 1972, through October 1, 1972. It was directed by Prince and starred Dorothy Collins (Sally; replaced by Janet Blair), Alexis Smith (Phyllis), John McMartin (Ben; replaced by Edward Winter), Gene Nelson (Buddy), and Yvonne De Carlo (Carlotta) reprising their original roles. The production was the premiere attraction at the newly constructed 1,800-seat theater, which, coincidentally, was itself razed thirty years later (in 2002, in order to build a new office building), thus mirroring the Follies plot line upon which the musical is based. 1985 Wythenshawe and Lincoln Center A full production ran at the Forum Theatre, Wythenshawe, England, from April 30, 1985, directed by Howard Lloyd-Lewis, design by Chris Kinman, costumes by Charles Cusick-Smith, lighting by Tim Wratten, musical direction by Simon Lowe, and choreographed by Paul Kerryson. The cast included Mary Millar (Sally Durant Plummer), Liz Izen (Young Sally), Meg Johnson (Stella Deems), Les Want (Max Deems), Betty Benfield (Heidi Schiller), Joseph Powell (Roscoe), Chili Bouchier (Hattie Walker), Shirley Greenwood (Emily Whitman), Bryan Burdon (Theodore Whitman), Monica Dell (Solange LaFitte), Jeannie Harris (Carlotta Campion), Josephine Blake (Phyllis Rogers Stone), Kevin Colson (Ben), Debbie Snook (Young Phyllis), Stephen Hale (Young Ben), Bill Bradley (Buddy Plummer), Paul Burton (Young Buddy), David Scase (Dimitri Weismann), Mitch Sebastian (Young Vincent), Kim Ismay (Young Vanessa), Lorraine Croft (Young Stella), and Meryl Richardson (Young Heidi). A staged concert at Avery Fisher Hall, Lincoln Center, was performed on September 6 and 7, 1985. The concert starred Barbara Cook (Sally), George Hearn (Ben), Mandy Patinkin (Buddy), and Lee Remick (Phyllis), and featured Carol Burnett (Carlotta), Betty Comden (Emily), Adolph Green (Theodore), Liliane Montevecchi (Solange LaFitte), Elaine Stritch (Hattie Walker), Phyllis Newman (Stella Deems), Jim Walton (Young Buddy), Howard McGillin (Young Ben), Liz Callaway (Young Sally), Daisy Prince (Young Phyllis), Andre Gregory (Dmitri), Arthur Rubin (Roscoe), and Licia Albanese (Heidi Schiller). Rich, in his review, noted that "As performed at Avery Fisher Hall, the score emerged as an original whole, in which the 'modern' music and mock vintage tunes constantly comment on each other, much as the script's action unfolds simultaneously in 1971 (the year of the reunion) and 1941 (the year the Follies disbanded)." Among the reasons the concert was staged was to provide an opportunity to record the entire score. The resulting album was more complete than the original cast album. However, director Herbert Ross took some liberties in adapting the book and score for the concert format—dance music was changed, songs were given false endings, the new dialogue was spoken, reprises were added, and Patinkin was allowed to sing "The God-Why-Don't-You-Love-Me Blues" as a solo instead of a trio with two chorus girls. Portions of the concert were seen by audiences worldwide in the televised documentary about the making of the concert, also released on videotape and DVD, of 'Follies' in Concert. 1987 West End The musical played in the West End at the Shaftesbury Theatre on July 21, 1987, and closed on February 4, 1989, after 644 performances. The producer was Cameron Mackintosh, the direction was by Mike Ockrent, with choreography by Bob Avian and design by Maria Björnson. The cast featured Diana Rigg (Phyllis), Daniel Massey (Ben), Julia McKenzie (Sally), David Healy (Buddy), Lynda Baron, Leonard Sachs, Maria Charles, Pearl Carr & Teddy Johnson. Dolores Gray was praised as Carlotta, continuing to perform after breaking her ankle, although in a reduced version of the part. During
and the foursome reminisces about the old days of their courtship and the theater, their memories vividly coming to life in the apparitions of their young counterparts ("Waiting For The Girls Upstairs"). Each of the four is shaken at the realization of how life has changed them. Elsewhere, Willy Wheeler (portly, in his sixties) cartwheels for a photographer. Emily and Theodore Whitman, ex-vaudevillians in their seventies, perform an old routine ("The Rain on the Roof"). Solange proves she is still fashionable at what she claims is 66 ("Ah, Paris!"), and Hattie Walker performs her old showstopping number ("Broadway Baby"). Buddy warns Phyllis that Sally is still in love with Ben, and she is shaken by how the past threatens to repeat itself. Sally is awed by Ben's apparently glamorous life, but Ben wonders if he made the right choices and considers how things might have been ("The Road You Didn't Take"). Sally tells Ben how her days have been spent with Buddy, trying to convince him (and herself) ("In Buddy's Eyes"). However, it is clear that Sally is still in love with Ben – even though their affair ended badly when Ben decided to marry Phyllis. She shakes loose from the memory and begins to dance with Ben, who is touched by the memory of the Sally he once cast aside. Phyllis interrupts this tender moment and has a biting encounter with Sally. Before she has a chance to really let loose, they are both called on to participate in another performance – Stella Deems and the ex-chorines line up to perform an old number ("Who's That Woman?"), as they are mirrored by their younger selves. Afterwards, Phyllis and Ben angrily discuss their lives and relationship, which has become numb and emotionless. Sally is bitter and has never been happy with Buddy, although he has always adored her. She accuses him of having affairs while he is on the road, and he admits he has a steady girlfriend, Margie, in another town, but always returns home. Carlotta amuses a throng of admirers with a tale of how her dramatic solo was cut from the Follies because the audience found it humorous, transforming it as she sings it into a toast to her own hard-won survival ("I'm Still Here"). Ben confides to Sally that his life is empty. She yearns for him to hold her, but young Sally slips between them and the three move together ("Too Many Mornings"). Ben, caught in the passion of memories, kisses Sally as Buddy watches from the shadows. Sally thinks this is a sign that the two will finally get married, and Ben is about to protest until Sally interrupts him with a kiss and runs off to gather her things, thinking that the two will leave together. Buddy leaves the shadows furious, and fantasizes about the girl he should have married, Margie, who loves him and makes him feel like "a somebody", but bitterly concludes he does not love her back ("The Right Girl"). He tells Sally that he's done, but she is lost in a fantasy world and tells him that Ben has asked her to marry him. Buddy tells her she must be either crazy or drunk, but he's already supported Sally through rehab clinics and mental hospitals and cannot take any more. Ben drunkenly propositions Carlotta, with whom he once had a fling, but she has a young lover and coolly turns him down. Heidi Schiller, joined by her younger counterpart, performs "One More Kiss", her aged voice a stark contrast to the sparkling coloratura of her younger self. Phyllis kisses a waiter and confesses to him that she had always wanted a son. She then tells Ben that their marriage can't continue the way it has been. Ben replies by saying that he wants a divorce, and Phyllis assumes the request is due to his love for Sally. Ben denies this, but still wants Phyllis out. Angry and hurt, Phyllis considers whether to grant his request ("Could I Leave You?"). Phyllis begins wondering at her younger self, who worked so hard to become the socialite that Ben needed. Ben yells at his younger self for not appreciating all the work that Phyllis did. Both Buddys enter to confront the Bens about how they stole Sally. Sally and her younger self enter and Ben firmly tells Sally that he never loved her. All the voices begin speaking and yelling at each other. Suddenly, at the peak of madness and confusion, the couples are engulfed by their follies, which transform the rundown theater into a fantastical "Loveland", an extravaganza even more grand and opulent than the gaudiest Weismann confection: "the place where lovers are always young and beautiful, and everyone lives only for love". Sally, Phyllis, Ben, and Buddy show their "real and emotional lives" in "a sort of group nervous breakdown". What follows is a series of musical numbers performed by the principal characters, each exploring their biggest desires. The two younger couples sing in a counterpoint of their hopes for the future ("You're Gonna Love Tomorrow/Love Will See Us Through"). Buddy then appears, dressed in "plaid baggy pants, garish jacket, and a shiny derby hat", and performs a high-energy vaudeville routine depicting how he is caught between his love for Sally and Margie's love for him ("The God-Why-Don't-You-Love-Me Blues"). Sally appears next, dressed as a torch singer, singing of her passion for Ben from the past - and her obsession with him now ("Losing My Mind"). In a jazzy dance number, accompanied by a squadron of chorus boys, Phyllis reflects on the two sides of her personality, one naive and passionate and the other jaded and sophisticated and her desire to combine them ("The Story of Lucy and Jessie"). Resplendent in top hat and tails, Ben begins to offer his devil-may-care philosophy ("Live, Laugh, Love"), but stumbles and anxiously calls to the conductor for the lyrics, as he frantically tries to keep going. Ben becomes frenzied, while the dancing ensemble continues as if nothing was wrong. Amidst a deafening discord, Ben screams at all the figures from his past and collapses as he cries out for Phyllis. "Loveland" has dissolved back into the reality of the crumbling and half-demolished theater; dawn is approaching. Ben admits to Phyllis his admiration for her, and Phyllis shushes him and helps Ben regain his dignity before they leave. After exiting, Buddy escorts the emotionally devastated Sally back to their hotel with the promise to work things out later. Their ghostly younger selves appear, watching them go. The younger Ben and Buddy softly call to their "girls upstairs", and the Follies end. Songs Source: Follies score "Prologue" – Orchestra "Overture" – Orchestra "Beautiful Girls" – Roscoe and Company "Don't Look at Me" – Sally and Ben "Waiting for the Girls Upstairs" – Ben, Sally, Phyllis and Buddy, Young Ben, Young Sally, Young Phyllis and Young Buddy "Montage" ("Rain on the Roof"/"Ah, Paris!"/"") – Emily, Theodore, Solange, and Hattie "The Road You Didn't Take" – Ben "Bolero d'Amour" – Danced by Vincent and Vanessa ≠≠ "In Buddy's Eyes" – Sally "Who's That Woman?" – Stella and Company "I'm Still Here" – Carlotta "Too Many Mornings" – Ben and Sally "The Right Girl" – Buddy "One More Kiss" – Heidi and Young Heidi "Could I Leave You?" – Phyllis "Loveland" – Company "You're Gonna Love Tomorrow" / "Love Will See Us Through" – Young Ben, Young Sally, Young Phyllis and Young Buddy "The God-Why-Don't-You-Love-Me Blues" – Buddy, "Margie", "Sally" "Losing My Mind" – Sally "The Story of Lucy and Jessie" ≠ – Phyllis and backup male dancers "Live, Laugh, Love" – Ben and Company "Chaos" – Ben and Company "Finale" – Young Buddy and Young Ben ≠ Some productions substitute "Ah, but Underneath" when the actress portraying Phyllis is not primarily a dancer. ≠≠ Omitted from some productions Note: This is the song list from the original Broadway production in 1971. Variations are discussed in Versions. Songs cut before the Broadway premiere include "All Things Bright and Beautiful" (used in the prologue), "Can That Boy Foxtrot!", "Who Could Be Blue?", "Little White House", "So Many People", "It Wasn't Meant to Happen", "Pleasant Little Kingdom", and "Uptown Downtown". The musical numbers "Ah, but Underneath" (replacing "The Story of Lucy and Jessie"), "Country House", "Make the Most of Your Music" (replacing "Live, Laugh, Love"), "Social Dancing" and a new version of "Loveland" have been incorporated into various productions. Analysis Hal Prince said: "Follies examines obsessive behavior, neurosis and self-indulgence more microscopically than anything I know of." Bernadette Peters quoted Sondheim on the character of "Sally": "He said early on that [Sally] is off-balance, to put it mildly. He thinks she's very neurotic, and she is very neurotic, so he said to me 'Congratulations. She's crazy. Martin Gottfried wrote: "The concept behind Follies is theatre nostalgia, representing the rose-colored glasses through which we face the fact of age ... the show is conceived in ghostliness. At its very start, ghosts of Follies showgirls stalk the stage, mythic giants in winged, feathered, black and white opulence. Similarly, ghosts of the Twenties shows slip through the evening as the characters try desperately to regain their youth through re-creations of their performances and inane theatre sentiments of their past." Joanne Gordon, author and chair and artistic director, Theatre, at California State University, Long Beach, wrote "Follies is in part an affectionate look at the American musical theatre between the two World Wars and provides Sondheim with an opportunity to use the traditional conventions of the genre to reveal the hollowness and falsity of his characters' dreams and illusions. The emotional high generated by the reunion of the Follies girls ultimately gives way to anger, disappointment, and weary resignation to reality." "Follies contains two scores: the Follies pastiche numbers and the book numbers." Some of the Follies numbers imitate the style of particular composers of the early 20th century: "Losing My Mind" is in the style of a George Gershwin ballad "The Man I Love". Sondheim noted that the song "The God-Why-Don't-You-Love-Me Blues" is "another generic pastiche: vaudeville music for chases and low comics, but with a patter lyric ... I tried to give it the sardonic knowingness of Lorenz Hart or Frank Loesser." "Loveland", the final musical sequence, (that "consumed the last half-hour of the original" production) is akin to an imaginary 1941 Ziegfeld Follies sequence, with Sally, Phyllis, Ben and Buddy performing "like comics and torch singers from a Broadway of yore." "Loveland" features a string of vaudeville-style numbers, reflecting the leading characters' emotional problems, before returning to the theater for the end of the reunion party. The four characters are "whisked into a dream show in which each acts out his or her own principal 'folly. Versions Goldman continued to revise the book of the musical right up to his death, which occurred shortly before the 1998 Paper Mill Playhouse production. Sondheim, too, has added and removed songs that he judged to be problematic in various productions. Ted Chapin explains: "Today, Follies is rarely performed twice in exactly the same version. James Goldman's widow made the observation that the show has morphed throughout its entire life ... The London production had new songs and dialogue. The Paper Mill Playhouse production used some elements from London but stayed close to the original. The 2001 Roundabout Broadway revival, the first major production following Goldman's death in 1998, was again a combination of previous versions." Major changes were made for the original production in London, which attempted to establish a lighter tone and favored a happier ending than the original Broadway production. According to Joanne Gordon, "When Follies opened in London ... it had an entirely different, and significantly more optimistic, tone. Goldman's revised book offered some small improvements over the original." According to Sondheim, the producer Cameron Mackintosh asked for changes for the 1987 London production. "I was reluctantly happy to comply, my only serious balk being at his request that I cut "The Road You Didn't Take" ... I saw no reason not to try new things, knowing we could always revert to the original (which we eventually did). The net result was four new songs ... For reasons which I've forgotten, I rewrote "Loveland" for the London production. There were only four showgirls in this version, and each one carried a shepherd's crook with a letter of the alphabet on it." The musical was written in one act, and the original director, Prince, did not want an intermission, while the co-director, Bennett, wanted two acts. It originally was performed in one act. The 1987 West End, 2005 Barrington Stage Company, the 2001 Broadway revival and Kennedy Center 2011 productions were performed in two acts. However, August 23, 2011, Broadway preview performance was performed without an intermission. By opening, the 2011 Broadway revival was performed with the intermission, in two acts. The 2017 National Theatre production is performed without an interval. Productions 1971 original Broadway Follies had its pre-Broadway tryout at the Colonial Theatre, Boston, from February 20 through March 20, 1971. Follies premiered on Broadway on April 4, 1971, at the Winter Garden Theatre. It was directed by Harold Prince and Michael Bennett, with choreography by Bennett, scenic design by Boris Aronson, costumes by Florence Klotz, and lighting by Tharon Musser. It starred Alexis Smith (Phyllis), John McMartin (Ben), Dorothy Collins (Sally), Gene Nelson (Buddy), along with several veterans of the Broadway and vaudeville stage. The supporting role of Carlotta was created by Yvonne De Carlo and usually is given to a well-known veteran performer who can belt out a song. Other notable performers in the original productions were Fifi D'Orsay as Solange LaFitte, Justine Johnston as Heidi Schiller, Mary McCarty as Stella Deems, Arnold Moss as Dimitri Weismann, Ethel Shutta as Hattie Walker, and Marcie Stringer and Charles Welch as Emily and Theodore Whitman. The show closed on July 1, 1972, after 522 performances and 12 previews. According to Variety, the production was a "total financial failure, with a cumulative loss of $792,000." Prince planned to present the musical on the West Coast and then on a national tour. However, the show did not do well in its Los Angeles engagement and plans for a tour ended. Frank Rich, for many years the chief drama critic for The New York Times, had first garnered attention, while an undergraduate at Harvard University, with a lengthy essay for the Harvard Crimson about the show, which he had seen during its pre-Broadway run in Boston. He predicted that the show eventually would achieve recognition as a Broadway classic. Rich later wrote that audiences at the original production were baffled and restless. For commercial reasons, the cast album was cut from two LPs to one early in production. Most songs were therefore heavily abridged and several were left entirely unrecorded. According to Craig Zadan, "It's generally felt that ... Prince made a mistake by giving the recording rights of Follies to Capitol Records, which in order to squeeze the unusually long score onto one disc, mutilated the songs by condensing some and omitting others." Chapin confirms this: "Alas ... final word came from Capitol that they would not go for two records ... [Dick Jones] now had to propose cuts throughout the score in consultation with Steve." "One More Kiss" was omitted from the final release but was restored for CD release. Chapin relates that "there was one song that Dick Jones [producer of the cast album] didn't want to include on the album but which Steve Sondheim most definitely did. The song was "One More Kiss", and the compromise was that if there was time, it would be recorded, even if Jones couldn't promise it would end up on the album. (It did get recorded but didn't make its way onto the album until the CD reissue years later.)" 1972 Los Angeles The musical was produced at The Muny, St. Louis, Missouri in July 1972 and then transferred to the Shubert Theatre, Century City, California, running from July 22, 1972, through October 1, 1972. It was directed by Prince and starred Dorothy Collins (Sally; replaced by Janet Blair), Alexis Smith (Phyllis), John McMartin (Ben; replaced by Edward Winter), Gene Nelson (Buddy), and Yvonne De Carlo (Carlotta) reprising their original roles. The production was the premiere attraction at the newly constructed 1,800-seat theater, which, coincidentally, was itself razed thirty years later (in 2002, in order to build a new office building), thus mirroring the Follies plot line upon which the musical is based. 1985 Wythenshawe and Lincoln Center A full production ran at the Forum Theatre, Wythenshawe, England, from April 30, 1985, directed by Howard Lloyd-Lewis, design by Chris Kinman, costumes by Charles Cusick-Smith, lighting by Tim Wratten, musical direction by Simon Lowe, and choreographed by Paul Kerryson. The cast included Mary Millar (Sally Durant Plummer), Liz Izen (Young Sally), Meg Johnson (Stella Deems), Les Want (Max Deems), Betty Benfield (Heidi Schiller), Joseph Powell (Roscoe), Chili Bouchier (Hattie Walker), Shirley Greenwood (Emily Whitman), Bryan Burdon (Theodore Whitman), Monica Dell (Solange LaFitte), Jeannie Harris (Carlotta Campion), Josephine Blake (Phyllis Rogers Stone), Kevin Colson (Ben), Debbie Snook (Young Phyllis), Stephen Hale (Young Ben), Bill Bradley (Buddy Plummer), Paul Burton (Young Buddy), David Scase (Dimitri Weismann), Mitch Sebastian (Young Vincent), Kim Ismay (Young Vanessa), Lorraine Croft (Young Stella), and Meryl Richardson (Young Heidi). A staged concert at Avery Fisher Hall, Lincoln Center, was performed on September 6 and 7, 1985. The concert starred Barbara Cook (Sally), George Hearn (Ben), Mandy Patinkin (Buddy), and Lee Remick (Phyllis), and featured Carol Burnett (Carlotta), Betty Comden (Emily), Adolph Green (Theodore), Liliane Montevecchi (Solange LaFitte), Elaine Stritch (Hattie Walker), Phyllis Newman (Stella Deems), Jim Walton (Young Buddy), Howard McGillin (Young Ben), Liz Callaway (Young Sally), Daisy Prince (Young Phyllis), Andre Gregory (Dmitri), Arthur Rubin (Roscoe), and Licia Albanese (Heidi Schiller). Rich, in his review, noted that "As performed at Avery Fisher Hall, the score emerged as an original whole, in which the 'modern' music and mock vintage tunes constantly comment on each other, much as the script's action unfolds simultaneously in 1971 (the year of the reunion) and 1941 (the year the Follies disbanded)." Among the reasons the concert was staged was to provide an opportunity to record the entire score. The resulting album was more complete than the original cast album. However, director Herbert Ross took some liberties in adapting the book and score for the concert format—dance music was changed, songs were given false endings, the new dialogue was spoken, reprises were added, and Patinkin was allowed to sing "The God-Why-Don't-You-Love-Me Blues" as a solo instead of a trio with two chorus girls. Portions of the concert were seen by audiences worldwide in the televised documentary about the making of the concert, also released on videotape and DVD, of 'Follies' in Concert. 1987 West End The musical played in the West End at the Shaftesbury Theatre on July 21, 1987, and closed on February 4, 1989, after 644 performances. The producer was Cameron Mackintosh, the direction was by Mike Ockrent, with choreography by Bob Avian and design by Maria Björnson. The cast featured Diana Rigg (Phyllis), Daniel Massey (Ben), Julia McKenzie (Sally), David Healy (Buddy), Lynda Baron, Leonard Sachs, Maria Charles, Pearl Carr & Teddy Johnson. Dolores Gray was praised as Carlotta, continuing to perform after breaking her ankle, although in a reduced version of the part. During the run, Eartha Kitt replaced Gray, sparking somewhat of a comeback (she went on to perform her own one-woman show at The Shaftesbury Theatre to sell-out houses for three weeks from March 18, 1989, after Follies closed). Other cast replacements included Millicent Martin as Phyllis. Julia McKenzie returned to the production for the final four performances. The book "was extensively reworked by James Goldman, with Sondheim's cooperation and also given an intermission." The producer Cameron Mackintosh did not like "that there was no change in the characters from beginning to end ... In the
they aim their analysis cross-linguistically, rather than only to a single language like English (as it's typical of formalist/generativism approaches). Economy The concept of economy is metaphorically transferred from a social or economical context to a linguistic level. It is considered as a regulating force in language maintenance. Controlling the impact of language change or internal and external conflicts of the system, the economy principle means that systemic coherence is maintained without increasing energy cost. This is why all human languages, no matter how different they are, have high functional value as based on a compromise between the competing motivations of speaker-easiness (simplicity or inertia) versus hearer-easiness (clarity or energeia). The principle of economy was elaborated by the French structural–functional linguist André Martinet. Martinet's concept is similar to Zipf's principle of least effort; although the idea had been discussed by various linguists in the late 19th and early 20th century. The functionalist concept of economy is not to be confused with economy in generative grammar. Information structure Some key adaptations of functional explanation are found in the study of information structure. Based on earlier linguists' work, Prague Circle linguists Vilém Mathesius, Jan Firbas and others elaborated the concept of theme–rheme relations (topic and comment) to study pragmatic concepts such as sentence focus, and givenness of information, to successfully explain word-order variation. The method has been used widely in linguistics to uncover word-order patterns in the languages of the world. Its importance, however, is limited to within-language variation, with no apparent explanation of cross-linguistic word order tendencies. Functional principles Several principles from pragmatics have been proposed as functional explanations of linguistic structures, often in a typological perspective. Theme first: languages prefer placing the theme before the rheme; and the subject typically carries the role of the theme; therefore, most languages have subject before object in their basic word order. Animate first: similarly, since subjects are more likely to be animate, they are more likely to precede the object. Given before new: old information comes before new information. First things first: more important or more urgent information comes before other information. Lightness: light (short) constituents are ordered before heavy (long) constituents. Uniformity: word order choices are generalised. For example, languages tend to have either prepositions or postpositions; and not both equally. Functional load: elements within a linguistic sub-system are made distinct to avoid confusion. Frameworks There are several distinct grammatical frameworks that employ a functional approach. The structuralist functionalism of the Prague school was the earliest functionalist framework developed in the 1920s. André Martinet's Functional Syntax, with two major books, A functional view of language (1962) and Studies in Functional Syntax (1975). Martinet is one of the most famous French linguists and can be regarded as the father of French functionalism. Founded by Martinet and his colleagues, SILF (Société internationale de linguistique fonctionnelle) is an international organisation of functional linguistics which operates mainly in French. Simon Dik's Functional Grammar, originally developed in the 1970s and 80s, has been influential and inspired many other functional theories. It has been developed into Functional Discourse Grammar by the linguist Kees Hengeveld. Michael Halliday's systemic functional grammar argues that the explanation of how language works "needed to be grounded in a functional analysis, since language had evolved in the process of carrying out certain critical functions as human beings interacted with their ... 'eco-social' environment". Halliday draws on the work of Bühler and Malinowski. The link between Firthian linguistics and Alfred North Whitehead also deserves a mention. Role and reference grammar, developed by Robert Van Valin employs functional analytical framework with a somewhat formal mode of description. In RRG, the description of a sentence in a particular language is formulated in terms of its semantic structure and communicative functions, as well as the grammatical procedures used to express these meanings. Danish functional grammar combines Saussurean/Hjelmslevian structuralism with a focus on pragmatics and discourse. Interactional linguistics, based on Conversation Analysis, considers linguistic structures as related to the functions of e.g. action and turn-taking in interaction. Construction grammar is a
The term function seems to have been introduced by Vilém Mathesius, possibly influenced from works in sociology. Functional analysis is the examination of how linguistic elements function on different layers of linguistic structure, and how the levels interact with each other. Functions exist on all levels of grammar, even in phonology, where the phoneme has the function of distinguishing between lexical material. Syntactic functions: (e.g. Subject and Object), defining different perspectives in the presentation of a linguistic expression. Semantic functions: (Agent, Patient, Recipient, etc.), describing the role of participants in states of affairs or actions expressed. Pragmatic functions: (Theme and Rheme, Topic and Focus, Predicate), defining the informational status of constituents, determined by the pragmatic context of the verbal interaction. Functional explanation In the functional mode of explanation, a linguistic structure is explained with an appeal to its function. Functional linguistics takes as its starting point the notion that communication is the primary purpose of language. Therefore, general phonological, morphosyntactic and semantic phenomena are thought of as being motivated by the needs of people to communicate successfully with each other. Thus, the perspective is taken that the organisation of language reflects its use value. Many prominent functionalist approaches, like Role and reference grammar and Functional discourse grammar, are also typologically-oriented, that is they aim their analysis cross-linguistically, rather than only to a single language like English (as it's typical of formalist/generativism approaches). Economy The concept of economy is metaphorically transferred from a social or economical context to a linguistic level. It is considered as a regulating force in language maintenance. Controlling the impact of language change or internal and external conflicts of the system, the economy principle means that systemic coherence is maintained without increasing energy cost. This is why all human languages, no matter how different they are, have high functional value as based on a compromise between the competing motivations of speaker-easiness (simplicity or inertia) versus hearer-easiness (clarity or energeia). The principle of economy was elaborated by the French structural–functional linguist André Martinet. Martinet's concept is similar to Zipf's principle of least effort; although the idea had been discussed by various linguists in the late 19th and early 20th century. The functionalist concept of economy is not to be confused with economy in generative grammar. Information structure Some key adaptations of functional explanation are found in the study of information structure. Based on earlier linguists' work, Prague Circle linguists Vilém Mathesius, Jan Firbas and others elaborated the concept of theme–rheme relations (topic and comment) to study pragmatic concepts such as sentence focus, and givenness of information, to successfully explain word-order variation. The method has been used widely in linguistics to uncover word-order patterns in the languages of the world. Its importance, however, is limited to within-language variation, with no apparent explanation of cross-linguistic word order tendencies. Functional principles Several principles from pragmatics have been proposed as functional explanations of linguistic structures, often in a typological perspective. Theme first: languages prefer placing the theme before the rheme; and the subject typically carries the role of the theme; therefore, most languages have subject before
molar mass, Fick's law becomes where is the mole fraction of species . Fick's second law Fick's second law predicts how diffusion causes the concentration to change with respect to time. It is a partial differential equation which in one dimension reads: where is the concentration in dimensions of [(amount of substance) length−3], example mol/m3; is a function that depends on location and time is time, example s is the diffusion coefficient in dimensions of [length2 time−1], example m2/s is the position [length], example m In two or more dimensions we must use the Laplacian , which generalises the second derivative, obtaining the equation Fick's second law has the same mathematical form as the Heat equation and its fundamental solution is the same as the Heat kernel, except switching thermal conductivity with diffusion coefficient : Derivation of Fick's second law Fick's second law can be derived from Fick's first law and the mass conservation in absence of any chemical reactions: Assuming the diffusion coefficient to be a constant, one can exchange the orders of the differentiation and multiply by the constant: and, thus, receive the form of the Fick's equations as was stated above. For the case of diffusion in two or more dimensions Fick's second law becomes which is analogous to the heat equation. If the diffusion coefficient is not a constant, but depends upon the coordinate or concentration, Fick's second law yields An important example is the case where is at a steady state, i.e. the concentration does not change by time, so that the left part of the above equation is identically zero. In one dimension with constant , the solution for the concentration will be a linear change of concentrations along . In two or more dimensions we obtain which is Laplace's equation, the solutions to which are referred to by mathematicians as harmonic functions. Example solutions and generalization Fick's second law is a special case of the convection–diffusion equation in which there is no advective flux and no net volumetric source. It can be derived from the continuity equation: where is the total flux and is a net volumetric source for . The only source of flux in this situation is assumed to be diffusive flux: Plugging the definition of diffusive flux to the continuity equation and assuming there is no source (), we arrive at Fick's second law: If flux were the result of both diffusive flux and advective flux, the convection–diffusion equation is the result. Example solution 1: constant concentration source and diffusion length A simple case of diffusion with time in one dimension (taken as the -axis) from a boundary located at position , where the concentration is maintained at a value is where is the complementary error function. This is the case when corrosive gases diffuse through the oxidative layer towards the metal surface (if we assume that concentration of gases in the environment is constant and the diffusion space – that is, the corrosion product layer – is semi-infinite, starting at 0 at the surface and spreading infinitely deep in the material). If, in its turn, the diffusion space is infinite (lasting both through the layer with , and that with , ), then the solution is amended only with coefficient in front of (as the diffusion now occurs in both directions). This case is valid when some solution with concentration is put in contact with a layer of pure solvent. (Bokstein, 2005) The length is called the diffusion length and provides a measure of how far the concentration has propagated in the -direction by diffusion in time (Bird, 1976). As a quick approximation of the error function, the first two terms of the Taylor series can be used: If is time-dependent, the diffusion length becomes This idea is useful for estimating a diffusion length over a heating and cooling cycle, where varies with temperature. Example solution 2: Brownian particle and Mean squared displacement Another simple case of diffusion is the Brownian motion of one particle. The particle's Mean squared displacement from its original position is: where is the dimension of the particle's Brownian motion. For example, the diffusion of a molecule across a cell membrane 8 nm thick is 1-D diffusion because of the spherical symmetry; However, the diffusion of a molecule from the membrane to the center of a eukaryotic cell is a 3-D diffusion. For a cylindrical cactus, the diffusion from photosynthetic cells on its surface to its center (the axis of its cylindrical symmetry) is a 2-D diffusion. The square root of MSD, , is often used as a characterization of how far has the particle moved after time has elapsed. The MSD is symmetrically distributed over the 1D, 2D, and 3D space. Thus, the probability distribution of the magnitude of MSD in 1D is Gaussian and 3D is Maxwell-Boltzmann distribution. Generalizations In non-homogeneous media, the diffusion coefficient varies in
approximation of the error function, the first two terms of the Taylor series can be used: If is time-dependent, the diffusion length becomes This idea is useful for estimating a diffusion length over a heating and cooling cycle, where varies with temperature. Example solution 2: Brownian particle and Mean squared displacement Another simple case of diffusion is the Brownian motion of one particle. The particle's Mean squared displacement from its original position is: where is the dimension of the particle's Brownian motion. For example, the diffusion of a molecule across a cell membrane 8 nm thick is 1-D diffusion because of the spherical symmetry; However, the diffusion of a molecule from the membrane to the center of a eukaryotic cell is a 3-D diffusion. For a cylindrical cactus, the diffusion from photosynthetic cells on its surface to its center (the axis of its cylindrical symmetry) is a 2-D diffusion. The square root of MSD, , is often used as a characterization of how far has the particle moved after time has elapsed. The MSD is symmetrically distributed over the 1D, 2D, and 3D space. Thus, the probability distribution of the magnitude of MSD in 1D is Gaussian and 3D is Maxwell-Boltzmann distribution. Generalizations In non-homogeneous media, the diffusion coefficient varies in space, . This dependence does not affect Fick's first law but the second law changes: In anisotropic media, the diffusion coefficient depends on the direction. It is a symmetric tensor . Fick's first law changes to it is the product of a tensor and a vector: For the diffusion equation this formula gives The symmetric matrix of diffusion coefficients should be positive definite. It is needed to make the right hand side operator elliptic. For inhomogeneous anisotropic media these two forms of the diffusion equation should be combined in The approach based on Einstein's mobility and Teorell formula gives the following generalization of Fick's equation for the multicomponent diffusion of the perfect components: where are concentrations of the components and is the matrix of coefficients. Here, indices and are related to the various components and not to the space coordinates. The Chapman–Enskog formulae for diffusion in gases include exactly the same terms. These physical models of diffusion are different from the test models which are valid for very small deviations from the uniform equilibrium. Earlier, such terms were introduced in the Maxwell–Stefan diffusion equation. For anisotropic multicomponent diffusion coefficients one needs a rank-four tensor, for example , where refer to the components and correspond to the space coordinates. Applications Equations based on Fick's law have been commonly used to model transport processes in foods, neurons, biopolymers, pharmaceuticals, porous soils, population dynamics, nuclear materials, plasma physics, and semiconductor doping processes. The theory of voltammetric methods is based on solutions of Fick's equation. On the other hand, in some cases a "Fickian" description is inadequate. For example, in polymer science and food science a more general approach is required to describe transport of components in materials undergoing a glass transition. One more general framework is the Maxwell–Stefan diffusion equations of multi-component mass transfer, from which Fick's law can be obtained as a limiting case, when the mixture is extremely dilute and every chemical species is interacting only with the bulk mixture and not with other species. To account for the presence of multiple species in a non-dilute mixture, several variations of the Maxwell–Stefan equations are used. See also non-diagonal coupled transport processes (Onsager relationship). Fick's flow in liquids When two miscible liquids are brought into contact, and diffusion takes place, the macroscopic (or average) concentration evolves following Fick's law. On a mesoscopic scale, that is, between the macroscopic scale described by Fick's law and molecular scale, where molecular random walks take place, fluctuations cannot be neglected. Such situations can be successfully modeled with Landau-Lifshitz fluctuating hydrodynamics. In this theoretical framework, diffusion is due to fluctuations whose dimensions range from the molecular scale to the macroscopic scale. In particular, fluctuating hydrodynamic equations include a Fick's flow term, with a given diffusion coefficient, along with hydrodynamics equations and stochastic terms describing fluctuations. When calculating the fluctuations with a perturbative approach, the zero order approximation is Fick's law. The first order gives the fluctuations, and it comes out that fluctuations contribute to diffusion. This represents somehow a tautology, since the phenomena described by a lower order approximation is the result of a higher approximation: this problem is solved only by renormalizing the fluctuating hydrodynamics equations. Sorption rate and collision frequency of diluted solute The adsorption or absorption rate of a dilute solute to a surface or interface in a (gas or liquid) solution can be calculated using Fick's laws of diffusion. The accumulated number of molecules adsorbed on the surface is expressed by the Langmuir-Schaefer equation at the short-time limit by integrating the diffusion equation over time: where is the surface area and is the number concentration of the molecule in the bulk solution. The Langmuir-Schaefer equation can be extended to the Ward-Tordai Equation to account for the "back-diffusion" of rejected molecules from the surface: where is the bulk concentration, is the sub-surface concentration (which is a function of time depending on the reaction model of the adsorption), and is a dummy variable. Monte Carlo simulations show that these two equations work to predict the adsorption rate of systems that form predictable concentration gradients near the surface but have troubles for systems without or with unpredictable concentration gradients, such as typical biosensing systems or when flow and convection are significant. In the ultrashort time limit, in the order of the diffusion time a2/D, where a is the particle radius, the diffusion is described by the Langevin equation. At a longer time, the Langevin equation merges into the Stokes–Einstein equation. The latter is appropriate for the condition of the diluted solution, where long-range diffusion is considered. According to the fluctuation-dissipation theorem based on the Langevin equation in the long-time limit and when the particle is significantly denser than the surrounding fluid, the time-dependent diffusion constant is: where kB is Boltzmann's constant. T is the absolute temperature. μ is the mobility of the particle in the fluid or gas, which can be calculated using the Einstein relation (kinetic theory). m is the mass of the particle. t is time. For a single molecule such as organic molecules or biomolecules (e.g. proteins) in water, the exponential term is negligible due to the small product of mμ in the picosecond region. When the area of interest is the size of a molecule (specifically, a long cylindrical molecule such as DNA), the adsorption rate equation represents the collision frequency of two molecules in a diluted solution, with one molecule a specific side and the other no steric dependence, i.e., a molecule (random orientation) hit one side of the other. The diffusion constant need to be updated to the relative diffusion constant between two diffusing molecules. This estimation is especially useful in studying the interaction between a small molecule and a larger molecule such as a protein. The effective diffusion constant is dominated by the smaller one whose diffusion constant can be used instead. The above hitting rate equation is also useful to predict the kinetics of molecular self-assembly on a surface. Molecules are randomly oriented in the bulk solution. Assuming 1/6 of the molecules has the right orientation to the surface binding sites, i.e. 1/2 of the z-direction in x, y, z three dimensions, thus the concentration of interest is just 1/6 of the bulk concentration. Put this value into the equation one should be able to calculate the theoretical adsorption kinetic curve using the Langmuir adsorption model. In a more rigid picture, 1/6 can be replaced by the steric factor of the binding geometry. Biological perspective The first law gives rise to the following formula: in which, is the permeability, an experimentally determined membrane "conductance" for a given gas at a given temperature. is the difference in concentration of the gas across the membrane for the direction of flow (from to ). Fick's first law is also important in radiation transfer equations. However, in this context, it becomes inaccurate when the diffusion constant is low and the radiation becomes limited by the speed of light rather than by the resistance of the material the radiation is flowing through. In this situation, one can use a flux limiter. The exchange rate of a gas across a fluid membrane can be determined by using this law together with Graham's law. Under the condition of a diluted solution when diffusion takes control, the membrane permeability mentioned in the above section can be theoretically calculated for the solute using the equation mentioned in the last section (use with particular care because the equation is derived for dense solutes, while biological molecules are not denser than water): where is the total area of the pores on the membrane (unit m2). transmembrane efficiency (unitless), which can be calculated from the stochastic theory of chromatography. D is the diffusion constant of the solute unit m2s−1. t is time unit s. c2, c1 concentration should use unit mol m−3, so flux unit becomes mol s−1. The flux is decay over the square root of time because a concentration gradient builds up
a term to refer to the geographical regions that includes East and Southeast Asia as well as the Russian Far East to a lesser extent. The term first came into use in European geopolitical discourse in the 15th century, particularly the British, denoting the Far East as the "farthest" of the three "easts", beyond the Near East and the Middle East. Likewise, in the Qing Dynasty of the 19th and early 20th centuries, the term "Tàixī ()" – i.e., anything further west than the Arab world – was used to refer to the Western countries. Since the 1960s, East and Southeast Asia (ESEA) has become the most common term for the region in international mass media outlets. The Russian Far East is often excluded due to cultural and ethnic differences, and is often considered as part of North Asia or Siberia instead. Popularization Among Western Europeans, prior to the colonial era, "Far East" referred to anything further east than the Middle East. South Asia is sometimes also included for economic and cultural reasons. In the 16th century, King John III of Portugal called India a "rich and interesting country in the Far East (Extremo Oriente)." The term was popularized during the period of the British Empire as a blanket term for lands to the east of British India. In pre-World War I European geopolitics, the Near East referred to the relatively nearby lands of the Ottoman Empire, the Middle East denoted northwestern South Asia and Central Asia, and the Far East meant countries along the western Pacific Ocean and eastern Indian Ocean. Many European languages have analogous terms, such as the French (), Spanish (), Portuguese (), German (), Italian (), Polish (), Norwegian () and Dutch (). Cultural as well as geographic meaning Significantly, the term evokes cultural as well as geographic separation; the Far East is not just geographically distant, but also culturally exotic. It never refers, for instance, to the culturally Western nations of Australia and New Zealand, which lie even farther to the east of Europe than East Asia itself. This combination of cultural and geographic subjectivity
East Siberia Orient South Asia Southeast Asia Tropical Asia Turkic migration Wars List of conflicts in Asia#East Asia List of conflicts in Asia#Southeast Asia List of Chinese wars and battles List of wars involving Indonesia List of wars involving Japan List of wars involving the People's Republic of China List of wars involving Thailand Indochina Wars (1946–1991) Korean War (1950–1953) Pacific War, part of World War II Russo-Japanese War (1904–1905) Organizations ASEAN+3 Comprehensive Economic Partnership for East Asia East Asian Community Regional Comprehensive Economic Partnership Southeast Asian Fisheries Development Center Notes References Further reading Clyde, Paul Hibbert, and Burton F. Beers. The Far East: A History of Western Impacts and Eastern Responses, 1830-1975 (1975). online Crofts, Alfred. A history of the Far East (1958) online Fairbank, John K., Edwin Reischauer, and Albert M. Craig. East Asia: The great tradition and East Asia: The modern transformation (1960) [2 vol 1960] online, famous textbook. Green, Michael. By More Than Providence: Grand Strategy and American Power in the Asia Pacific Since 1783 (2019) excerpt Iriye, Akira. After Imperialism; The Search for a New Order in the Far East 1921-1931. (1965). Keay, John. Empire's End: A History of the Far East from High Colonialism to Hong Kong (Scribner, 1997). online Macnair, Harley F. & Donald Lach. Modern Far Eastern International Relations. (2nd ed 1955) 1950 edition online free, 780pp; focus on 1900–1950. Norman, Henry. The Peoples and Politics of the Far East: Travels and studies in the British, French, Spanish and Portuguese colonies, Siberia, China, Japan, Korea, Siam and Malaya (1904) online Paine, S. C. M. The Wars for Asia, 1911-1949 (2014) excerpt Ring, George C. Religions of the Far East: Their History to the Present Day (Kessinger Publishing, 2006). Vinacke, Harold M. A History of the Far East in Modern Times (1964) online free Vogel, Ezra. China and Japan: Facing History (2019) excerpt Woodcock, George. The British in the Far East (1969) online. Regions of
have to fly back to Heathrow' Basil says, 'No, fly us to Spain or I'll shoot you.' He arrives in Spain, is immediately arrested, and spends the entire holiday in a Spanish jail. He is released just in time to go back on the plane with Sybil. It was very funny, but I couldn't do it at the time. Making 'Fawlty Towers' work at 90 minutes was a very difficult proposition. You can build up the comedy for 30 minutes, but at that length there has to be a trough and another peak. It doesn't interest me. I don't want to do it. Cleese also may have been reticent because of Connie Booth's unwillingness to be involved. She had practically retreated from public life after the show finished (and had been initially unwilling to collaborate on a second series, which explains the four-year gap between productions). The decision by Cleese and Booth to quit before a third series has often been lauded as it ensured the show's successful status would not be weakened with later, lower-quality work. Subsequently, it has inspired the makers of other shows to do likewise. Ricky Gervais and Stephen Merchant refused to make a third series of either The Office or Extras (both also limited to 12 episodes), citing Fawlty Towers' short lifespan. Rik Mayall, Ben Elton and Lise Mayer, the writers behind The Young Ones, which also ran for only two series (each with six episodes), used this explanation as well. Victoria Wood also indicated this influenced her decision to limit dinnerladies to 16 episodes over two series. The origins, background and eventual cancellation of the series would later be humorously referenced in 1987's The Secret Policeman's Third Ball in a sketch in which Hugh Laurie and Stephen Fry present Cleese — whom they comically misname "Jim Cleese" — with a Dick Emery Lifetime Achievement Award ("Silver Dick") for his contributions to comedy, then launch into a comical series of questions regarding the show, including Cleese's marriage and divorce from Booth, innocently ridiculing Cleese and reducing him to tears, to a point at which he gets on his knees and crawls off the stage while crying. Series 1 (1975) Series 2 (1979) The second series was transmitted three-and-a-half years later, with the first episode being broadcast on 19 February 1979. Due to an industrial dispute at the BBC, which resulted in a strike, the final episode was not completed until well after the others, being finally shown as a one-off instalment on 25 October 1979. The cancelled episode on 19 March was replaced with a repeat of "Gourmet Night" from series 1. In the second series the anagrams were created by Ian McClane, Bob Spier's assistant floor manager. Reception Critical reaction At first, the series was not held in particularly high esteem. The Daily Mirrors review of the show in 1975 had the headline "Long John Short On Jokes". Eventually though, as the series began to gain popularity, critical acclaim followed. Clive James writing in The Observer said the second episode had him "retching with laughter." One critic of the show was Richard Ingrams, then television reviewer for The Spectator, who wrote a caustic piece, condemning the programme. Cleese got his revenge by naming one of the guests in the second series "Mr. Ingrams", who is caught in his room with a blow-up doll. In an interview for the "TV Characters" edition of Channel 4's 'talking heads' strand 100 Greatest (in which Basil placed second, between Homer Simpson and Edmund Blackadder), TV critic A. A. Gill theorised that the initially muted response may have been caused by Cleese seemingly ditching his label as a comic revolutionary – earned through his years with Monty Python – to do something more traditional. In a list of the 100 Greatest British Television Programmes drawn up by the British Film Institute in 2000, voted for by industry professionals, Fawlty Towers was placed first. It was also voted fifth in the "Britain's Best Sitcom" poll in 2004, and second only to Frasier in The Ultimate Sitcom poll of comedy writers in January 2006. Basil Fawlty came top of the Britain's Funniest Comedy Character poll, held by Five on 14 May 2006. In 1997, "The Germans" was ranked No. 12 on TV Guide's 100 Greatest Episodes of All Time. Named in Empire magazine's 2016 list of the greatest TV shows of all time, the entry states, Awards and accolades Three British Academy Television Awards (BAFTAs) were awarded to people for their involvement with the series. Both of the series were awarded the BAFTA in the category Best Scripted Comedy, the first being won by John Howard Davies in 1976, and the second by Douglas Argent and Bob Spiers in 1980. In 1980, Cleese received the BAFTA for Best Entertainment Performance. In a list drawn up by the British Film Institute in 2000, voted by industry professionals, Fawlty Towers was named the best British television series of all time. Legacy John Lennon was a fan of the show. He said in 1980: "I love Fawlty Towers. I'd like to be in that. [It's] the greatest show I've seen in years... what a masterpiece, a beautiful thing." Filmmaker Martin Scorsese has remarked he is a great fan of Fawlty Towers and named "The Germans" as his favourite episode. He described the scene with Basil impersonating Hitler as "so tasteless, it's hilarious". Remakes, adaptations and reunions Three attempted remakes of Fawlty Towers were started for the American market, with two making it into production. The first, Chateau Snavely starring Harvey Korman and Betty White, was produced by ABC for a pilot in 1978, but the transfer from coastal hotel to highway motel proved too much and the series never was produced. The second, also by ABC, was Amanda's, starring Bea Arthur, notable for switching the sexes of its Basil and Sybil equivalents. It also failed to pick up a major audience and was dropped after ten episodes had been aired, although 13 episodes were shot. A third remake, called Payne (produced by and starring John Larroquette), was produced in 1999, but was cancelled shortly after. Nine episodes were produced of which eight aired on American television (though the complete run was broadcast overseas). A German pilot based on the sitcom was made in 2001, named Zum letzten Kliff, but further episodes were not made after its first series. The popular sitcoms 3rd Rock from the Sun and Cheers (in both of which Cleese made guest appearances) have cited Fawlty Towers as an inspiration, especially regarding its depiction of a dysfunctional workplace "family". Arthur Mathews and Graham Linehan have cited Fawlty Towers as a major influence on their sitcom Father Ted. Guest House on Pakistan's PTV also resembled the series. Several of the characters have made other appearances, as spinoffs or in small cameo roles. In 1981, in character as Manuel, Andrew Sachs recorded his own version of the Joe Dolce cod-Italian song "Shaddap You Face" (with the B-side "Waiter, There's a Spanish Flea in My Soup") but the record was not released because Joe Dolce took out an injunction: he was about to issue his version in Britain. Sachs also portrayed a Manuel-like character in a series of British TV advertisements for life insurance. Gilly Flower and Renee Roberts, who played the elderly ladies Miss Tibbs and Miss Gatsby in the series, reprised their roles in a 1983 episode of Only Fools and Horses. In 2006, Cleese played Basil Fawlty for the first time in 27 years, for an unofficial England 2006 World Cup song, "Don't Mention the World Cup", taking its name from the phrase, "Don't mention the war," which Basil used in the episode "The Germans". In 2007, Cleese and Sachs reprised their roles for a six-episode corporate business video for the Norwegian oil company Statoil. In the video, Fawlty is running a restaurant called "Basil's Brasserie" while Manuel owns a Michelin-starred restaurant in London. In the 2008 gala performance We Are Most Amused, Cleese breaks into character as Basil for a cameo appearance by Sachs as an elderly Manuel. In November 2007, Prunella Scales returned to the role of Sybil Fawlty in a series of sketches for the BBC's annual Children in Need charity telethon. The character was seen taking over the management of the eponymous hotel from the BBC drama series Hotel Babylon, interacting with characters from that programme as well as other 1970s sitcom characters. The character of Sybil was used by permission of John Cleese. In 2007, the Los Angeles Film School produced seven episodes of Fawlty Tower Oxnard starring Robert Romanus as Basil Fawlty. In 2016, Cleese reprised his role as Basil in a series of TV adverts for High Street optician chain Specsavers. The same year, Cleese and Booth reunited to create and co-write the official theatrical adaptation of Fawlty Towers, which premiered in Melbourne at the Comedy Theatre. It was critically well received, subsequently embarking on a successful tour of Australia. Cleese was intimately involved in the creation of the stage version from the beginning, including in the casting. He visited Australia to promote the adaptation, as well as oversee its success. Melbourne was chosen to premiere the adaptation due to Fawlty Towers' enduring popularity in Australia, and also because it has become a popular international test market for large-scale theatrical productions in recent years, having recently been the city where the revised Love Never Dies and the new King Kong were also premiered. Cleese also noted he did not believe the London press would give the adaptation fair, unbiased reviews, so he deliberately chose to premiere it elsewhere. Fawlty Towers: Re-Opened In 2009, Tiger Aspect Productions produced a two-part documentary for the digital comedy channel Gold, called Fawlty Towers: Re-Opened. The documentary features interviews with all four main cast members, including Connie Booth, who had refused to talk about the series for 30 years. John Cleese confirmed at the 30-year reunion in May 2009 that they will never make another episode of the comedy because they are "too old and tired" and expectations would be too high. In a television interview (shown in Australia on Seven Network and the Australian Broadcasting Corporation) on 7 May 2009, Cleese also commented that he and Booth took six weeks to write each episode. Overseas In 1977 and 1978 alone, the original TV show was sold to 45 stations in 17 countries and was the BBC's best-selling overseas programme for that year. Fawlty Towers became a huge success in almost all countries in which it aired. Although it initially was a flop in Spain, largely because of the portrayal of the Spanish waiter Manuel, it was successfully resold with the Manuel character's nationality changed to Italian except in Spain's Catalan region where Manuel was Mexican. To show how badly it translated, Clive James picked up a clip containing Manuel's "¿Qué?" phrase to show on Clive James on Television in 1982. The series also briefly was broadcast in Italy in the 1990s on the satellite channel Canal Jimmy, in the original English with Italian subtitles. In Australia, the show originally was broadcast on ABC Television, the first series in 1976 and the second series in 1980. The show then was sold to the Seven Network where it has been repeated numerous times. Home media and merchandise Audio releases Four albums were released by BBC Records on vinyl LP and cassette. These consisted of the original television soundtracks with additional voice-over from Andrew Sachs (in character as Manuel) describing scenes which relied on visual humour. The first album, simply titled Fawlty Towers, was released in 1979 and contained the audio from "Communication Problems" (as "Mrs Richards") and "Hotel Inspectors". The second album, titled Second Sitting, was released in 1981 and contained audio from "Basil the Rat" (as "The Rat") and "The Builders". At Your Service was released in 1982, and contained the audio from "The Kipper and the Corpse" (as "Death") and "The Germans" (as "Fire Drill"). Finally, A La Carte was released in 1983, and contained the audio from "Waldorf Salad" (as "The Americans") and "Gourmet Night". The albums were re-released as double-cassette packs under the titles Fawlty Towers 1 and Fawlty Towers 2 in 1988. The remaining four episodes did not get an audio-only release until they were released on audio cassette as Fawlty Towers 3 in 1994 The first CD release of the audio versions was in a box set in 2003, titled Fawlty Towers – The Collector's Edition, which included spoken introductions to each episode by John Cleese, and an interview with Prunella Scales and Andrew Sachs. The four vinyl records were re-released in a limited edition box set, along with the remaining four episodes on vinyl for the first time, for Record Store Day in 2021. Home media Fawlty Towers was originally released by BBC Video in 1984, with three episodes on each of four tapes. Each tape was edited with the credits from all three episodes put at the end of the tape. A LaserDisc containing all episodes spliced together as a continuous episode was released in the U.S. on 23 June 1993. It was re-released in 1994, unedited but digitally remastered. It also was re-released in 1998 with a special interview with John Cleese. Fawlty Towers – The Complete
in a sketch in which Hugh Laurie and Stephen Fry present Cleese — whom they comically misname "Jim Cleese" — with a Dick Emery Lifetime Achievement Award ("Silver Dick") for his contributions to comedy, then launch into a comical series of questions regarding the show, including Cleese's marriage and divorce from Booth, innocently ridiculing Cleese and reducing him to tears, to a point at which he gets on his knees and crawls off the stage while crying. Series 1 (1975) Series 2 (1979) The second series was transmitted three-and-a-half years later, with the first episode being broadcast on 19 February 1979. Due to an industrial dispute at the BBC, which resulted in a strike, the final episode was not completed until well after the others, being finally shown as a one-off instalment on 25 October 1979. The cancelled episode on 19 March was replaced with a repeat of "Gourmet Night" from series 1. In the second series the anagrams were created by Ian McClane, Bob Spier's assistant floor manager. Reception Critical reaction At first, the series was not held in particularly high esteem. The Daily Mirrors review of the show in 1975 had the headline "Long John Short On Jokes". Eventually though, as the series began to gain popularity, critical acclaim followed. Clive James writing in The Observer said the second episode had him "retching with laughter." One critic of the show was Richard Ingrams, then television reviewer for The Spectator, who wrote a caustic piece, condemning the programme. Cleese got his revenge by naming one of the guests in the second series "Mr. Ingrams", who is caught in his room with a blow-up doll. In an interview for the "TV Characters" edition of Channel 4's 'talking heads' strand 100 Greatest (in which Basil placed second, between Homer Simpson and Edmund Blackadder), TV critic A. A. Gill theorised that the initially muted response may have been caused by Cleese seemingly ditching his label as a comic revolutionary – earned through his years with Monty Python – to do something more traditional. In a list of the 100 Greatest British Television Programmes drawn up by the British Film Institute in 2000, voted for by industry professionals, Fawlty Towers was placed first. It was also voted fifth in the "Britain's Best Sitcom" poll in 2004, and second only to Frasier in The Ultimate Sitcom poll of comedy writers in January 2006. Basil Fawlty came top of the Britain's Funniest Comedy Character poll, held by Five on 14 May 2006. In 1997, "The Germans" was ranked No. 12 on TV Guide's 100 Greatest Episodes of All Time. Named in Empire magazine's 2016 list of the greatest TV shows of all time, the entry states, Awards and accolades Three British Academy Television Awards (BAFTAs) were awarded to people for their involvement with the series. Both of the series were awarded the BAFTA in the category Best Scripted Comedy, the first being won by John Howard Davies in 1976, and the second by Douglas Argent and Bob Spiers in 1980. In 1980, Cleese received the BAFTA for Best Entertainment Performance. In a list drawn up by the British Film Institute in 2000, voted by industry professionals, Fawlty Towers was named the best British television series of all time. Legacy John Lennon was a fan of the show. He said in 1980: "I love Fawlty Towers. I'd like to be in that. [It's] the greatest show I've seen in years... what a masterpiece, a beautiful thing." Filmmaker Martin Scorsese has remarked he is a great fan of Fawlty Towers and named "The Germans" as his favourite episode. He described the scene with Basil impersonating Hitler as "so tasteless, it's hilarious". Remakes, adaptations and reunions Three attempted remakes of Fawlty Towers were started for the American market, with two making it into production. The first, Chateau Snavely starring Harvey Korman and Betty White, was produced by ABC for a pilot in 1978, but the transfer from coastal hotel to highway motel proved too much and the series never was produced. The second, also by ABC, was Amanda's, starring Bea Arthur, notable for switching the sexes of its Basil and Sybil equivalents. It also failed to pick up a major audience and was dropped after ten episodes had been aired, although 13 episodes were shot. A third remake, called Payne (produced by and starring John Larroquette), was produced in 1999, but was cancelled shortly after. Nine episodes were produced of which eight aired on American television (though the complete run was broadcast overseas). A German pilot based on the sitcom was made in 2001, named Zum letzten Kliff, but further episodes were not made after its first series. The popular sitcoms 3rd Rock from the Sun and Cheers (in both of which Cleese made guest appearances) have cited Fawlty Towers as an inspiration, especially regarding its depiction of a dysfunctional workplace "family". Arthur Mathews and Graham Linehan have cited Fawlty Towers as a major influence on their sitcom Father Ted. Guest House on Pakistan's PTV also resembled the series. Several of the characters have made other appearances, as spinoffs or in small cameo roles. In 1981, in character as Manuel, Andrew Sachs recorded his own version of the Joe Dolce cod-Italian song "Shaddap You Face" (with the B-side "Waiter, There's a Spanish Flea in My Soup") but the record was not released because Joe Dolce took out an injunction: he was about to issue his version in Britain. Sachs also portrayed a Manuel-like character in a series of British TV advertisements for life insurance. Gilly Flower and Renee Roberts, who played the elderly ladies Miss Tibbs and Miss Gatsby in the series, reprised their roles in a 1983 episode of Only Fools and Horses. In 2006, Cleese played Basil Fawlty for the first time in 27 years, for an unofficial England 2006 World Cup song, "Don't Mention the World Cup", taking its name from the phrase, "Don't mention the war," which Basil used in the episode "The Germans". In 2007, Cleese and Sachs reprised their roles for a six-episode corporate business video for the Norwegian oil company Statoil. In the video, Fawlty is running a restaurant called "Basil's Brasserie" while Manuel owns a Michelin-starred restaurant in London. In the 2008 gala performance We Are Most Amused, Cleese breaks into character as Basil for a cameo appearance by Sachs as an elderly Manuel. In November 2007, Prunella Scales returned to the role of Sybil Fawlty in a series of sketches for the BBC's annual Children in Need charity telethon. The character was seen taking over the management of the eponymous hotel from the BBC drama series Hotel Babylon, interacting with characters from that programme as well as other 1970s sitcom characters. The character of Sybil was used by permission of John Cleese. In 2007, the Los Angeles Film School produced seven episodes of Fawlty Tower Oxnard starring Robert Romanus as Basil Fawlty. In 2016, Cleese reprised his role as Basil in a series of TV adverts for High Street optician chain Specsavers. The same year, Cleese and Booth reunited to create and co-write the official theatrical adaptation of Fawlty Towers, which premiered in Melbourne at the Comedy Theatre. It was critically well received, subsequently embarking on a successful tour of Australia. Cleese was intimately involved in the creation of the stage version from the beginning, including in the casting. He visited Australia to promote the adaptation, as well as oversee its success. Melbourne was chosen to premiere the adaptation due to Fawlty Towers' enduring popularity in Australia, and also because it has become a popular international test market for large-scale theatrical productions in recent years, having recently been the city where the revised Love Never Dies and the new King Kong were also premiered. Cleese also noted he did not believe the London press would give the adaptation fair, unbiased reviews, so he deliberately chose to premiere it elsewhere. Fawlty Towers: Re-Opened In 2009, Tiger Aspect Productions produced a two-part documentary for the digital comedy channel Gold, called Fawlty Towers: Re-Opened. The documentary features interviews with all four main cast members, including Connie Booth, who had refused to talk about the series for 30 years. John Cleese confirmed at the 30-year reunion in May 2009 that they will never make another episode of the comedy because they are "too old and tired" and expectations would be too high. In a television interview (shown in Australia on Seven Network and the Australian Broadcasting Corporation) on 7 May 2009, Cleese also commented that he and Booth took six weeks to write each episode. Overseas In 1977 and 1978 alone, the original TV show was sold to 45 stations in 17 countries and was the BBC's best-selling overseas programme for that year. Fawlty Towers became a huge success in almost all countries in which it aired. Although it initially was a flop in Spain, largely because of the portrayal of the Spanish waiter Manuel, it was successfully resold with the Manuel character's nationality changed to Italian except in Spain's Catalan region where Manuel was Mexican. To show how badly it translated, Clive James picked up a clip containing Manuel's "¿Qué?" phrase to show on Clive James on Television in 1982. The series also briefly was broadcast in Italy in the 1990s on the satellite channel Canal Jimmy, in the original English with Italian subtitles. In Australia, the show originally was broadcast on ABC Television, the first series in 1976 and the second series in 1980. The show then was sold to the Seven Network where it has been repeated numerous times. Home media and merchandise Audio releases Four albums were released by BBC Records on vinyl LP and cassette. These consisted of the original television soundtracks with additional voice-over from Andrew Sachs (in character as Manuel) describing scenes which relied on visual humour. The first album, simply titled Fawlty Towers, was released in 1979 and contained the audio from "Communication Problems" (as "Mrs Richards") and "Hotel Inspectors". The second album, titled Second Sitting, was released in 1981 and contained audio from "Basil the Rat" (as "The Rat") and "The Builders". At Your Service was released in 1982, and contained the audio from "The Kipper and the Corpse" (as "Death") and "The Germans" (as "Fire Drill"). Finally, A La Carte was released in 1983, and contained the audio from "Waldorf Salad" (as "The Americans") and "Gourmet Night". The albums were re-released as double-cassette packs under the titles Fawlty Towers 1 and Fawlty Towers 2 in 1988. The remaining four episodes did not get an audio-only release until they were released on audio cassette as Fawlty Towers 3 in 1994 The first CD release of the audio versions was in a box set in 2003, titled Fawlty Towers – The Collector's Edition, which included spoken introductions to each episode by John Cleese, and an interview with Prunella Scales and Andrew Sachs. The four vinyl records were re-released in a limited edition box set, along with the remaining four episodes on vinyl for the first time, for Record Store Day in 2021. Home media Fawlty Towers was originally released by BBC Video in 1984, with three episodes on each of four tapes. Each tape was edited with the credits from all three episodes put at the end of the tape. A LaserDisc containing all episodes spliced together as a continuous episode was released in the U.S. on 23 June 1993. It was re-released in 1994, unedited but digitally remastered. It also was re-released in 1998 with a special interview with John Cleese. Fawlty Towers – The Complete Series was released on DVD on 16 October 2001, available in regions 1, 2 and 4. A "Collector's Edition" is available in region 2. The original DVD release contained a slightly edited version of "The Kipper and the Corpse", in which Basil's line "Is it your legs?" (said to Mr Lehman when asking why he wants breakfast in bed) is missing. This line was restored in subsequent remastered releases of the DVDs. Series one of the show was released on UMD Video for PSP. In July 2009, BBC America announced a DVD re-release of the Fawlty Towers series. The DVD set was released on 20 October 2009. The reissue, titled Fawlty Towers Remastered: Special Edition, contains commentary by John Cleese on every episode as well as remastered video and audio. All episodes are available as streamed video-on-demand via Britbox, Netflix and Amazon Prime Video. Additionally, both
language will face a false friend when learning the other. Sometimes, presumably both senses were present in the common ancestor language, but the cognate words got different restricted senses in Language A and Language B. Actual, which in English is usually a synonym of real, has a different meaning in other European languages, in which it means 'current' or 'up-to-date', and has the logical derivative as a verb, meaning 'to make current' or 'to update'. Actualise (or 'actualize') in English means 'to make a reality of'. The word friend itself has cognates in the other Germanic languages; but the Scandinavian ones (like Swedish frände, Danish frænde) predominantly mean 'relative'. The original Proto-Germanic word meant simply 'someone whom one cares for' and could therefore refer to both a friend and a relative, but lost various degrees of the 'friend' sense in Scandinavian languages, while it mostly lost the sense of 'relative' in English. (The plural friends is still rarely used for "kinsfolk", as in the Scottish proverb Friends agree best at a distance, quoted in 1721.) The Estonian and Finnish languages are closely related, which gives rise to false friends: Or Estonian vaimu ‘spirit; ghost’ and Finnish vaimo ‘wife’; or Estonian huvitav ‘interesting’ and Finnish huvittava ‘amusing’. A high level of lexical similarity exists between German and Dutch, but shifts in meaning of words with a shared etymology have in some instances resulted in 'bi-directional false friends': The Italian word confetti "sugared almonds" has acquired a new meaning in English, French and Dutch; in Italian, the corresponding word is coriandoli. English and Spanish, both of which have borrowed from Greek and Latin, have multiple false friends, such as: -Sp. darse cuenta - Engl. realize / Sp. realizar - Engl. carry out -Sp. realmente - Engl. actually / Sp. actualmente - Engl. currently -Sp. publicidad - Engl. advertisement / Sp. advertencia - Engl. warning. -Sp. extraño - Engl. bizarre / Sp. bizarro - Engl. brave. English and Japanese also have diverse false friends, many of them being wasei-eigo and gairaigo words. Homonyms In Swedish, the word rolig means 'fun': ett roligt skämt ("a funny joke"), while in the closely related languages Danish and Norwegian it means 'calm' (as in "he was calm despite all the commotion around him"). However, the Swedish original meaning of 'calm' is retained in some related words such as ro, 'calmness', and orolig, 'worrisome, anxious', literally 'un-calm'. The Danish and Norwegian word semester means term (as in school term), but the Swedish word semester means holiday. The Danish word frokost means lunch, the Norwegian word frokost means breakfast. In French, the word Hure refers to the
context of psychology, its meaning was restricted to a particular type of fear described as "a neurotic feeling of anxiety and depression". Also, gymnasium meant both 'a place of education' and 'a place for exercise' in Latin, but its meaning was restricted to the former in German and to the latter in English, making the expressions into false friends in those languages as well as in Greek, where it started out as 'a place for naked exercise'. Definition and origin False friends, or bilingual homophones are words in two or more languages that look or sound similar, but differ significantly in meaning. The origin of the term is as a shortened version of the expression "false friend of a translator", the English translation of a French expression () introduced by Maxime Kœssler and Jules Derocquigny in their 1928 book, with a sequel, Autres Mots anglais perfides. Causes From the etymological point of view, false friends can be created in several ways. Shared etymology If language A borrowed a word from language B, or both borrowed the word from a third language or inherited it from a common ancestor, and later the word shifted in meaning or acquired additional meanings in at least one of these languages, a native speaker of one language will face a false friend when learning the other. Sometimes, presumably both senses were present in the common ancestor language, but the cognate words got different restricted senses in Language A and Language B. Actual, which in English is usually a synonym of real, has a different meaning in other European languages, in which it means 'current' or 'up-to-date', and has the logical derivative as a verb, meaning 'to make current' or 'to update'. Actualise (or 'actualize') in English means 'to make a reality of'. The word friend itself has cognates in the other Germanic languages; but the Scandinavian ones (like Swedish frände, Danish frænde) predominantly mean 'relative'. The original Proto-Germanic word meant simply 'someone whom one cares for' and could therefore refer to both a friend and a relative, but lost various degrees of the 'friend' sense in Scandinavian languages, while it mostly lost the sense of 'relative' in English. (The plural friends is still rarely used for "kinsfolk", as in the Scottish proverb Friends agree best at a distance, quoted in 1721.) The Estonian and Finnish languages are closely related, which gives rise to false friends: Or Estonian vaimu ‘spirit; ghost’ and Finnish vaimo ‘wife’; or Estonian huvitav ‘interesting’ and Finnish huvittava ‘amusing’. A high level of lexical similarity exists between German and Dutch, but shifts in meaning of words with a shared etymology have in some instances resulted in 'bi-directional false friends': The Italian word confetti "sugared almonds" has acquired a new meaning in English, French and Dutch; in Italian, the corresponding word is coriandoli. English and Spanish, both of which have borrowed from Greek and Latin, have multiple false friends, such as: -Sp. darse cuenta - Engl. realize / Sp. realizar - Engl. carry out -Sp. realmente - Engl. actually / Sp. actualmente - Engl. currently -Sp. publicidad - Engl. advertisement / Sp. advertencia - Engl. warning. -Sp. extraño - Engl. bizarre / Sp. bizarro - Engl. brave. English and Japanese also have diverse false friends, many of them being wasei-eigo
dal ("poor") (which is a false cognate of the phono-semantically similar English word dull) is used in the new Israeli Hebrew expression אין רגע דל en rega dal (literally "There is no poor moment") as a phono-semantic matching for the English expression Never a dull moment. Similarly, the Hebrew word דיבוב dibúv ("speech, inducing someone to speak"), which is a false cognate of (and thus etymologically unrelated to) the phono-semantically similar English word dubbing, is then used in the Israeli phono-semantic matching for dubbing. The result is that in today's Israel, דיבוב dibúv means "dubbing". See also Areal feature Convergent evolution Equivalence Etymological fallacy False etymology False friend Linguistic interference (language transfer) Semantic change Sprachbund References Further reading Rubén Morán (2011), 'Cognate Linguistics', Kindle Edition, Amazon. Geoff Parkes and Alan Cornell (1992), 'NTC's Dictionary of German False Cognates', National Textbook Company, NTC Publishing Group. External links Cognates.org
terms mama and papa comprise a special case of false cognates. Examples Note: Some etymologies may be simplified to avoid overly long descriptions. Within English Between English and other languages Between other languages False cognates used in the coinage of new words The coincidental similarity between false cognates can sometimes be used in the creation of new words (neologization). For example, the Hebrew word dal ("poor") (which is a false cognate of the phono-semantically similar English word dull) is used in the new Israeli Hebrew expression אין רגע דל en rega dal (literally "There is no poor moment") as a phono-semantic matching for the English expression Never a dull moment. Similarly, the Hebrew word דיבוב dibúv ("speech, inducing someone to speak"), which is a false cognate of (and thus etymologically unrelated to) the phono-semantically similar English word dubbing, is then used in the Israeli phono-semantic matching for dubbing. The result is that in today's Israel, דיבוב dibúv means "dubbing". See also Areal feature Convergent evolution Equivalence Etymological fallacy False etymology False friend Linguistic interference
use technical indicators for deciding entry and exit points. Similarly, a large proportion of technical investors use fundamental indicators to limit their pool of possible stocks to "good" companies. The choice of stock analysis is determined by the investor's belief in the different paradigms for "how the stock market works". For explanations of these paradigms, see the discussions at efficient-market hypothesis, random walk hypothesis, capital asset pricing model, Fed model Theory of Equity Valuation, market-based valuation, and behavioral finance. Fundamental analysis includes: Economic analysis Industry analysis Company analysis The intrinsic value of the shares is determined based upon these three analyses. It is this value that is considered the true value of the share. If the intrinsic value is higher than the market price, buying the share is recommended. If it is equal to market price, it is recommended to hold the share; and if it is less than the market price, then one should sell the shares. Use by different portfolio styles Investors may also use fundamental analysis within different portfolio management styles. Buy and hold investors believe that latching on to good businesses allows the investor's asset to grow with the business. Fundamental analysis lets them find "good" companies, so they lower their risk and the probability of wipe-out. Value investors restrict their attention to under-valued companies, believing that "it's hard to fall out of a ditch". The values they follow come from fundamental analysis. Managers may use fundamental analysis to correctly value "good" and "bad" companies. Managers may also consider the economic cycle in determining whether conditions are "right" to buy fundamentally suitable companies. Contrarian investors hold that "in the short run, the market is a voting machine, not a weighing machine". Fundamental analysis allows an investor to make his or her own decision on value, while ignoring the opinions of the market. Managers may use fundamental analysis to determine future growth rates for buying high priced growth stocks. Managers may include fundamental factors along with technical factors in computer models (quantitative analysis). Top-down and bottom-up approaches Investors using fundamental analysis can use either a top-down or bottom-up approach. The top-down investor starts their analysis with global economics, including both international and national economic indicators. These may include GDP growth rates, inflation, interest rates, exchange rates, productivity, and energy prices. They subsequently narrow their search to regional/ industry analysis of total sales, price levels, the effects of competing products, foreign competition, and entry or exit from the industry. Only then do they refine their search to the best business in the area being studied. The bottom-up investor starts with specific businesses, regardless of their industry/region, and proceeds in reverse of the top-down approach. Procedures The analysis of a business's health starts with a financial statement analysis that includes financial ratios. It looks at dividends paid, operating cash flow, new equity issues and capital financing. The earnings estimates
companies, so they lower their risk and the probability of wipe-out. Value investors restrict their attention to under-valued companies, believing that "it's hard to fall out of a ditch". The values they follow come from fundamental analysis. Managers may use fundamental analysis to correctly value "good" and "bad" companies. Managers may also consider the economic cycle in determining whether conditions are "right" to buy fundamentally suitable companies. Contrarian investors hold that "in the short run, the market is a voting machine, not a weighing machine". Fundamental analysis allows an investor to make his or her own decision on value, while ignoring the opinions of the market. Managers may use fundamental analysis to determine future growth rates for buying high priced growth stocks. Managers may include fundamental factors along with technical factors in computer models (quantitative analysis). Top-down and bottom-up approaches Investors using fundamental analysis can use either a top-down or bottom-up approach. The top-down investor starts their analysis with global economics, including both international and national economic indicators. These may include GDP growth rates, inflation, interest rates, exchange rates, productivity, and energy prices. They subsequently narrow their search to regional/ industry analysis of total sales, price levels, the effects of competing products, foreign competition, and entry or exit from the industry. Only then do they refine their search to the best business in the area being studied. The bottom-up investor starts with specific businesses, regardless of their industry/region, and proceeds in reverse of the top-down approach. Procedures The analysis of a business's health starts with a financial statement analysis that includes financial ratios. It looks at dividends paid, operating cash flow, new equity issues and capital financing. The earnings estimates and growth rate projections published widely by Thomson Reuters and others can be considered either "fundamental" (they are facts) or "technical" (they are investor sentiment) based on perception of their validity. Determined growth rates (of income and cash) and risk levels (to determine the discount rate) are used in various valuation models. The foremost is the discounted cash flow model, which calculates the present value of the future:
time, the two become close friends. Frasier, along with the other characters in the series, often visits the local coffee shop, Café Nervosa, making it a frequent setting in the show. The Crane brothers, who have expensive tastes, intellectual interests, and high opinions of themselves, frequently clash with their father, Martin. The close relationship between the brothers is often tense, and their sibling rivalry intermittently results in chaos. For two psychiatrists who make a living solving other people's problems, however, they are often inept at dealing with each other's hangups. Other recurring themes in the series include Niles's relationship with his unseen first wife, Maris, (whom he later divorces), Frasier's relationship with his ex-wife, Lilith, who resides in Boston with their son Frederick, Frasier's search for love, Martin's new life after retirement, and the various attempts by the two brothers to gain acceptance into le tout Seattle. Characters Main Kelsey Grammer as Frasier Crane, a radio psychiatrist. He is a fussy, uptight, cultured, and sometimes, arrogant person. Having grown up with an educated mother and an "average Joe" father, Frasier epitomises an upper-class sophistication, yet he is still sympathetic to working-class culture. After returning to Seattle, he begins embracing his more privileged background, but he also develops a more selfish and aloof manner, possibly due to rekindling his relationship with his younger brother, Niles Crane. Despite his haughty demeanor, however, Frasier has a level-head and a strong sense of ethics. Jane Leeves as Daphne Moon (later Crane), is an English immigrant from Manchester; a physiotherapist and live-in aid hired by Frasier to help his father. Daphne's eccentric, working-class background and self-professed psychic abilities (which often end up being correct) frequently lead to Daphne's comical non-sequiturs about her unusual family, which is a sharp contrast to the Cranes' incredulity. In spite of their different upbringings, Niles falls for her instantly. Niles' obsession with Daphne and her obliviousness to this is developed throughout the earlier seasons of the series. David Hyde Pierce as Niles Crane, Frasier's younger brother. He is a psychiatrist in private practice. Educated, cold-hearted, and more arrogant than Frasier, Niles' snobby, anxious qualities provide a foil for Frasier's own issues. Despite his aforementioned qualities, he is brave, caring, and well-meaning, which, to his loved ones, more than makes up for his eccentricities and quirks. Niles is very close to his older brother, though their fiercely competitive natures often provide the audience with much humor throughout the series. Like Frasier, Niles has a deep appreciation and respect for the arts, music, and pursuits which are seen as intellectual and prefers these activities over most sports, though he excels in squash and croquet. Niles is severely mysophobic, often given to wiping his hands after human contact, and is even depicted wiping down chairs in public places before sitting on them. Peri Gilpin as Roz Doyle, the producer of Frasier's radio show. A native of Bloomer, Wisconsin, Roz, one of two single women in the series, is depicted as a sharp contrast to Daphne. Throughout the show, Roz's search for love and liberal approach to dating is the subject of many witty remarks, particularly from Niles. In the middle of series' run, Roz becomes pregnant with her first child, Alice, and the show addresses some of the challenges of being a single mother, including Roz having to borrow money from her boss, and the personal and professional strain that places on their relationship. John Mahoney as Martin Crane, Frasier and Niles's father, is an outspoken and laid-back Seattle police detective who was forced to retire after sustaining a gunshot wound to his hip. Due to this injury preventing him from being capable of living alone, upon Frasier's return to Seattle, Martin is forced to accept Frasier's invitation to live with him. Though he and his sons share few commonalities, the relationship between the three men strengthens throughout the series. Martin's relationship with his Jack Russell terrier, Eddie and his pea-green recliner, are a perpetual source of distress for Frasier. He is also known for his fondness for beer (specifically that for Ballantine). Recurring Dan Butler as Bob "Bulldog" Briscoe (seasons 4–6; recurring season 1; special appearance seasons 2–3; special guest seasons 7 & 9–11), is the womanizing, misogynistic host of "Bob "Bulldog" Briscoe and the Gonzo Sports Show,” which follows Frasier's time slot at KACL. Marsha Mason as Sherry Dempsey (seasons 4–5), Martin's flamboyant girlfriend, whose tastes and opinions are often a cause of antagonism and arguments with the rest of the family. Edward Hibbert as Gil Chesterton (seasons 2–8 & 10–11; guest season 1), KACL's posh, camp restaurant critic Patrick Kerr as Noel Shempsky (seasons 6–11; guest seasons 1 & 3–5), KACL technical assistant and avid Star Trek aficionado who speaks fluent Klingon and constantly harasses Roz Tom McGowan as Kenny Daly (seasons 7–11; guest seasons 5–6), KACL's station manager Harriet Sansom Harris as Bebe Glazer (seasons 1-11), Frasier's flirtatious and duplicitous agent. Described by Niles as "Lady Macbeth without the sincerity," she will use any method to get her or her clients the best deal. Millicent Martin as Mrs. Moon (season 9–10; guest season 7, 11), Daphne's mother Brian Klugman as Kirby (season 9; guest season 8), Bob and Lana's son, and part-timer at KACL Ashley Thomas as Alice (seasons 10–11; co-star season 9), Roz's daughter Notes The main cast remained unchanged for all 11 years. When the series ended in 2004, Grammer had portrayed the character of Frasier Crane for a total of 20 years, including his nine seasons on Cheers plus a one-time performance as the character on the series Wings which earned Grammer an Emmy nomination. At the time, he tied James Arness' portrayal of Matt Dillon on Gunsmoke for the longest-running character on American primetime television. The record has since been surpassed in animation by the voice cast of The Simpsons, and in live action by Richard Belzer's portrayal of John Munch and Mariska Hargitay's portrayal of Olivia Benson (both on Law & Order: Special Victims Unit, among several other series). Grammer was briefly the highest-paid television actor in the United States for his portrayal of Frasier, while Jane Leeves was the highest-paid British actress. In addition to those of the ensemble, additional story lines included characters from Frasier's former incarnation on Cheers, such as his ex-wife Lilith Sternin, played by Bebe Neuwirth, and their son Frederick, played by Trevor Einhorn. Reunions Grammer had been the voice of Sideshow Bob on The Simpsons since 1990. In a 1997 episode (while Frasier was still in production), the character's brother, Cecil Terwilliger, was introduced, played by Pierce, as per the reference in the episode title, "Brother from Another Series". The episode contained numerous Frasier references, including a Frasier-style version of The Simpsons theme for a transition and its iconic title card for the same thing. Pierce returned as Cecil for the second time (the first since Frasier had concluded) alongside Grammer in the 2007 episode "Funeral for a Fiend". The episode introduced the brothers' father, Dr. Robert Terwilliger, who was portrayed by Mahoney. Cast reunions also occurred on four episodes of Hot in Cleveland, which featured Leeves in the main cast along with Wendie Malick (who played Martin's girlfriend towards the end of Frasier). In the season-two episode "Unseparated at Birth" and season-three episode "Funeral Crashers", Mahoney guest-starred as a waiter smitten with Betty White's character. Gilpin appeared in the episode "I Love Lucci (Part 1)", and Tom McGowan (who played Kenny Daly) appeared in "Love Thy Neighbor" as a casting director. Hot in Cleveland was created and produced by Suzanne Martin, who wrote multiple episodes of Frasier. Production Creation During the eighth season of Cheers, Grammer made a deal with former Cheers producers David Angell, Peter Casey, and David Lee (who were moving on to produce Wings) that they would do a new series together once Cheers ended. Once it became clear during the 10th season that the 11th would be the last, the group began working on their next series together. Grammer did not originally want to continue playing Frasier Crane, and Angell, Casey, and Lee did not want the new show to be compared to Cheers, which they had worked on before Wings. The three proposed that the actor play a wealthy, Malcolm Forbes-like paraplegic publisher who operated his business from his apartment. The main show featured a "street-smart" Hispanic live-in nurse who would clash with the main character. While Grammer liked the concept, Paramount Television disliked it, and suggested that the best route would be to spin off the Frasier Crane character. Grammer ultimately agreed to star in a Cheers spin-off, but the producers set the new show as far from Boston as possible to prevent NBC from demanding that other characters from the old show make guest appearances on the new show during its first season. After first choosing Denver, Angell, Casey, and Lee initially wanted to set the show in Denver, but changed the location to Seattle after Colorado passed a law that prevented municipalities from enacting anti-discrimination laws protecting gay, lesbian, or bisexual people. The creators did not want Frasier in private practice, which would make the show resemble The Bob Newhart Show. From an unused idea they had for a Cheers episode, they conceived the concept of the psychiatrist working in a radio station surrounded by "wacky, yet loveable" characters. After realizing that such a setting was reminiscent of WKRP in Cincinnati, the creators decided to emphasize Frasier's home life, which Cheers had rarely explored. Lee considered his own experience with "the relationship between an aging father and the grown-up son he never understood" and thought it would be a good theme for Frasier. Although Frasier had mentioned on Cheers (in two episodes) that his father, a research scientist, had died, Angell, Casey, and Lee did not realize this was the case, as they were not working on Cheers during the season those two episodes were filmed. The creative team was already well into the development process when Grammer pointed out the discontinuity; they decided to overlook it, initially retconning the character's backstory. In a second-season episode, the discrepancy was resolved, as Frasier revealed he had lied to the Cheers gang about his father. One element of the original concept that was carried over was the live-in health-care provider for Frasier's father. Grammer points out that very little of the Frasier Crane of Cheers carried over to Frasier, as his family history was changed (though this was later adjusted); the setting, his job, and even the character himself changed from the Cheers predecessor, having to be more grounded as the central character of the show so the other supporting characters could be more eccentric. Casting Martin Crane was based on creator Casey's father, who spent 34 years with the San Francisco Police Department. The creators suggested to NBC that they would like to cast someone like Mahoney, to which NBC told them if they could get Mahoney, they could hire him without auditions. Both Grammer and the producers contacted Mahoney, with the producers flying to Chicago to show Mahoney the pilot script over dinner. Upon reading it, Mahoney accepted. Grammer, who had lost his father as a child, and the childless Mahoney immediately built a close father-son relationship. In discussing Martin's nurse, Warren Littlefield of NBC suggested she be English instead of Hispanic and suggested Leeves for the role. Grammer was initially reluctant, as he thought the casting made the show resemble Nanny and the Professor, but approved Leeves after a meeting and read-through with her. Mahoney and Leeves quickly bonded over their shared English heritage; Mahoney was originally from Manchester where Leeves's character is from. The character of Niles was not part of the original concept for the show. Frasier had told his bar friends on Cheers that he was an only child. However, Sheila Guthrie, the assistant casting director on Wings, brought the producers a photo of Pierce (whom she knew from his work on The Powers That Be) and noted his resemblance to Grammer when he first appeared on Cheers. She recommended him should they ever want Frasier to have a brother. The creators were "blown away" both by his resemblance to Grammer and by his acting ability. They decided to ignore Frasier's statement on Cheers and created the role for Pierce. Pierce accepted the role before realizing he had not read a script. Once he was given a script, he was initially concerned that his character was essentially a duplicate of Frasier, thinking that it would not work. The first table reading of the pilot script was notable because the producers had never heard either Pierce or Mahoney read lines because they were cast without auditions. The only main role that required an audition was Roz Doyle, who was named in memory of a producer of Wings. The producers auditioned around 300 actresses with no particular direction in mind. Women of all ethnicities were considered. Lisa Kudrow was originally cast in the role, but during rehearsals, the producers decided they needed someone who could appear more assertive in her job and take control over Frasier at KACL, and Kudrow did not fit that role. The creators quickly hired Gilpin, their second choice. The original focus of the series was intended to be the relationship between Frasier and Martin, and it was the focus of most of the first-season episodes. Once the show began airing, Niles became a breakout character, and more focus was added to the brothers' relationship, and other plots centering on Niles, starting in the second season. The producers initially did not want to make Niles's wife Maris an unseen character because they did not want to draw parallels to Vera, Norm's wife on Cheers. They originally intended that she would appear after several episodes, but were enjoying writing excuses for her absence so much that they eventually decided she would remain unseen, and after the increasingly eccentric characteristics ascribed to her, they concluded that no real actress would be able to portray her anyway. Sets and settings Frasier's apartment was designed to be ultra-modern in an eclectic style (as Frasier himself points out in the pilot). One of the show's signature elements that it became well known for was the apartment's design which included elements such as a slightly split-level design, doors with triangular wooden inlay features, numerous pieces of well-known high-end furniture (such as a replica of Coco Chanel's sofa, and both Eames Lounge Chair and Wassily Chair) and a notable view from the terrace which was frequently complimented by visitors. The main set consisted of the open-concept living area with a sitting/TV space and dining area on the lower level and a piano exit to the terrace on the rear upper level. The set also included the kitchen through an open archway. A small section of the building corridor and elevator doors was built, as was a powder room near the front entrance. Two corridors off the living area ostensibly led to the apartment's three bedrooms. Sets for each of these rooms were built as separate sets on an as-needed basis. No building or apartment in Seattle really has the view from Frasier's residence. It was created so the Space Needle, the most iconic landmark of Seattle, would appear more prominently. According to the season-one DVD bonus features, the photograph used on the set was taken from atop a cliff, possibly the ledge at Kerry Park, a frequent photography location. Despite this, Frasier has been said to have contributed to the emergence of an upscale urban lifestyle in 1990s Seattle, with buyers seeking properties in locations resembling that depicted in the show, in search of "that cosmopolitan feel of Frasier". Another of the primary sets was the radio studio at KACL from which Frasier broadcasts his show. The studio itself consists of two rooms: the broadcast booth and the control room. A section of the corridor outside of the booth was also built (visible through the windows at the back of the studio) and could be shot from the side to view the corridor itself. The set was designed based on ABC's then-brand-new radio studios in Los Angeles which the production designer visited. Technical elements such as the microphones were regularly updated to conform with the latest technology. Although the studio set lacked a "front" wall (the fourth wall), one was built for occasional use in episodes with certain moments shot from behind the broadcast desk, rather than in front of it as usual. The producers wanted to have a gathering place outside of home and work where the characters could meet. After a trip to Seattle, and seeing the many burgeoning coffee shops, the production designer suggested to producers that they use a coffee shop. Unlike many of the relatively modern coffee shop designs prevalent in Seattle, the production designer opted for a more warm and inviting style which would appear more established and traditional. Stools were specifically omitted to avoid any similarity to the bar on Cheers. Several Los Angeles coffee shops were used for reference. A bookcase was added on the back wall, suggesting patrons could grab a book and read while they enjoyed their coffee. The show used three versions of
series, is depicted as a sharp contrast to Daphne. Throughout the show, Roz's search for love and liberal approach to dating is the subject of many witty remarks, particularly from Niles. In the middle of series' run, Roz becomes pregnant with her first child, Alice, and the show addresses some of the challenges of being a single mother, including Roz having to borrow money from her boss, and the personal and professional strain that places on their relationship. John Mahoney as Martin Crane, Frasier and Niles's father, is an outspoken and laid-back Seattle police detective who was forced to retire after sustaining a gunshot wound to his hip. Due to this injury preventing him from being capable of living alone, upon Frasier's return to Seattle, Martin is forced to accept Frasier's invitation to live with him. Though he and his sons share few commonalities, the relationship between the three men strengthens throughout the series. Martin's relationship with his Jack Russell terrier, Eddie and his pea-green recliner, are a perpetual source of distress for Frasier. He is also known for his fondness for beer (specifically that for Ballantine). Recurring Dan Butler as Bob "Bulldog" Briscoe (seasons 4–6; recurring season 1; special appearance seasons 2–3; special guest seasons 7 & 9–11), is the womanizing, misogynistic host of "Bob "Bulldog" Briscoe and the Gonzo Sports Show,” which follows Frasier's time slot at KACL. Marsha Mason as Sherry Dempsey (seasons 4–5), Martin's flamboyant girlfriend, whose tastes and opinions are often a cause of antagonism and arguments with the rest of the family. Edward Hibbert as Gil Chesterton (seasons 2–8 & 10–11; guest season 1), KACL's posh, camp restaurant critic Patrick Kerr as Noel Shempsky (seasons 6–11; guest seasons 1 & 3–5), KACL technical assistant and avid Star Trek aficionado who speaks fluent Klingon and constantly harasses Roz Tom McGowan as Kenny Daly (seasons 7–11; guest seasons 5–6), KACL's station manager Harriet Sansom Harris as Bebe Glazer (seasons 1-11), Frasier's flirtatious and duplicitous agent. Described by Niles as "Lady Macbeth without the sincerity," she will use any method to get her or her clients the best deal. Millicent Martin as Mrs. Moon (season 9–10; guest season 7, 11), Daphne's mother Brian Klugman as Kirby (season 9; guest season 8), Bob and Lana's son, and part-timer at KACL Ashley Thomas as Alice (seasons 10–11; co-star season 9), Roz's daughter Notes The main cast remained unchanged for all 11 years. When the series ended in 2004, Grammer had portrayed the character of Frasier Crane for a total of 20 years, including his nine seasons on Cheers plus a one-time performance as the character on the series Wings which earned Grammer an Emmy nomination. At the time, he tied James Arness' portrayal of Matt Dillon on Gunsmoke for the longest-running character on American primetime television. The record has since been surpassed in animation by the voice cast of The Simpsons, and in live action by Richard Belzer's portrayal of John Munch and Mariska Hargitay's portrayal of Olivia Benson (both on Law & Order: Special Victims Unit, among several other series). Grammer was briefly the highest-paid television actor in the United States for his portrayal of Frasier, while Jane Leeves was the highest-paid British actress. In addition to those of the ensemble, additional story lines included characters from Frasier's former incarnation on Cheers, such as his ex-wife Lilith Sternin, played by Bebe Neuwirth, and their son Frederick, played by Trevor Einhorn. Reunions Grammer had been the voice of Sideshow Bob on The Simpsons since 1990. In a 1997 episode (while Frasier was still in production), the character's brother, Cecil Terwilliger, was introduced, played by Pierce, as per the reference in the episode title, "Brother from Another Series". The episode contained numerous Frasier references, including a Frasier-style version of The Simpsons theme for a transition and its iconic title card for the same thing. Pierce returned as Cecil for the second time (the first since Frasier had concluded) alongside Grammer in the 2007 episode "Funeral for a Fiend". The episode introduced the brothers' father, Dr. Robert Terwilliger, who was portrayed by Mahoney. Cast reunions also occurred on four episodes of Hot in Cleveland, which featured Leeves in the main cast along with Wendie Malick (who played Martin's girlfriend towards the end of Frasier). In the season-two episode "Unseparated at Birth" and season-three episode "Funeral Crashers", Mahoney guest-starred as a waiter smitten with Betty White's character. Gilpin appeared in the episode "I Love Lucci (Part 1)", and Tom McGowan (who played Kenny Daly) appeared in "Love Thy Neighbor" as a casting director. Hot in Cleveland was created and produced by Suzanne Martin, who wrote multiple episodes of Frasier. Production Creation During the eighth season of Cheers, Grammer made a deal with former Cheers producers David Angell, Peter Casey, and David Lee (who were moving on to produce Wings) that they would do a new series together once Cheers ended. Once it became clear during the 10th season that the 11th would be the last, the group began working on their next series together. Grammer did not originally want to continue playing Frasier Crane, and Angell, Casey, and Lee did not want the new show to be compared to Cheers, which they had worked on before Wings. The three proposed that the actor play a wealthy, Malcolm Forbes-like paraplegic publisher who operated his business from his apartment. The main show featured a "street-smart" Hispanic live-in nurse who would clash with the main character. While Grammer liked the concept, Paramount Television disliked it, and suggested that the best route would be to spin off the Frasier Crane character. Grammer ultimately agreed to star in a Cheers spin-off, but the producers set the new show as far from Boston as possible to prevent NBC from demanding that other characters from the old show make guest appearances on the new show during its first season. After first choosing Denver, Angell, Casey, and Lee initially wanted to set the show in Denver, but changed the location to Seattle after Colorado passed a law that prevented municipalities from enacting anti-discrimination laws protecting gay, lesbian, or bisexual people. The creators did not want Frasier in private practice, which would make the show resemble The Bob Newhart Show. From an unused idea they had for a Cheers episode, they conceived the concept of the psychiatrist working in a radio station surrounded by "wacky, yet loveable" characters. After realizing that such a setting was reminiscent of WKRP in Cincinnati, the creators decided to emphasize Frasier's home life, which Cheers had rarely explored. Lee considered his own experience with "the relationship between an aging father and the grown-up son he never understood" and thought it would be a good theme for Frasier. Although Frasier had mentioned on Cheers (in two episodes) that his father, a research scientist, had died, Angell, Casey, and Lee did not realize this was the case, as they were not working on Cheers during the season those two episodes were filmed. The creative team was already well into the development process when Grammer pointed out the discontinuity; they decided to overlook it, initially retconning the character's backstory. In a second-season episode, the discrepancy was resolved, as Frasier revealed he had lied to the Cheers gang about his father. One element of the original concept that was carried over was the live-in health-care provider for Frasier's father. Grammer points out that very little of the Frasier Crane of Cheers carried over to Frasier, as his family history was changed (though this was later adjusted); the setting, his job, and even the character himself changed from the Cheers predecessor, having to be more grounded as the central character of the show so the other supporting characters could be more eccentric. Casting Martin Crane was based on creator Casey's father, who spent 34 years with the San Francisco Police Department. The creators suggested to NBC that they would like to cast someone like Mahoney, to which NBC told them if they could get Mahoney, they could hire him without auditions. Both Grammer and the producers contacted Mahoney, with the producers flying to Chicago to show Mahoney the pilot script over dinner. Upon reading it, Mahoney accepted. Grammer, who had lost his father as a child, and the childless Mahoney immediately built a close father-son relationship. In discussing Martin's nurse, Warren Littlefield of NBC suggested she be English instead of Hispanic and suggested Leeves for the role. Grammer was initially reluctant, as he thought the casting made the show resemble Nanny and the Professor, but approved Leeves after a meeting and read-through with her. Mahoney and Leeves quickly bonded over their shared English heritage; Mahoney was originally from Manchester where Leeves's character is from. The character of Niles was not part of the original concept for the show. Frasier had told his bar friends on Cheers that he was an only child. However, Sheila Guthrie, the assistant casting director on Wings, brought the producers a photo of Pierce (whom she knew from his work on The Powers That Be) and noted his resemblance to Grammer when he first appeared on Cheers. She recommended him should they ever want Frasier to have a brother. The creators were "blown away" both by his resemblance to Grammer and by his acting ability. They decided to ignore Frasier's statement on Cheers and created the role for Pierce. Pierce accepted the role before realizing he had not read a script. Once he was given a script, he was initially concerned that his character was essentially a duplicate of Frasier, thinking that it would not work. The first table reading of the pilot script was notable because the producers had never heard either Pierce or Mahoney read lines because they were cast without auditions. The only main role that required an audition was Roz Doyle, who was named in memory of a producer of Wings. The producers auditioned around 300 actresses with no particular direction in mind. Women of all ethnicities were considered. Lisa Kudrow was originally cast in the role, but during rehearsals, the producers decided they needed someone who could appear more assertive in her job and take control over Frasier at KACL, and Kudrow did not fit that role. The creators quickly hired Gilpin, their second choice. The original focus of the series was intended to be the relationship between Frasier and Martin, and it was the focus of most of the first-season episodes. Once the show began airing, Niles became a breakout character, and more focus was added to the brothers' relationship, and
of the disparate authors, the rules systems were incompatible. FGU Incorporated published dozens of role-playing games. Fantasy Games Unlimited won the All Time Best Ancient Medieval Rules for 1979 H.G. Wells Award at Origins 1980 for Chivalry & Sorcery. In 1991, Fantasy Games Unlimited Inc. was dissolved as a New York corporation. Bizar continues to publish in Arizona as a sole proprietorship called Fantasy Games Unlimited. A new FGU website appeared in July 2006 offering the company's back catalog. It said that new products would be "coming soon". New Aftermath! products appeared in 2008. By 2010, much of the company's back catalog was available. At that time, FGU sought submissions f new adventures for their existing titles, primarily Aftermath!, Space Opera, and Villains and Vigilantes. Publications Aftermath! Archworld (1977) Bireme & Galley (1978) Blue Light Manual Broadsword Bunnies & Burrows Bushido Castle Plans Chivalry & Sorcery (1st & 2nd editions) Citadel Daredevils Diadem Down Styphon! Fire, Hack & Run Flash Gordon & the Warriors of Mongo Flashing Blades Frederick the Great Freedom Fighters Galactic Conquest Gangster! Gladiators Land of the Rising Sun Lands of Adventure Legion Lords & Wizards Madame Guillotine Merc Mercenary Middle Sea Odysseus Oregon Trail Other Suns Pieces of
other uses. Rather than focusing on one line and supporting it with supplements, FGU produced a stream of new games. Because of the disparate authors, the rules systems were incompatible. FGU Incorporated published dozens of role-playing games. Fantasy Games Unlimited won the All Time Best Ancient Medieval Rules for 1979 H.G. Wells Award at Origins 1980 for Chivalry & Sorcery. In 1991, Fantasy Games Unlimited Inc. was dissolved as a New York corporation. Bizar continues to publish in Arizona as a sole proprietorship called Fantasy Games Unlimited. A new FGU website appeared in July 2006 offering the company's back catalog. It said that new products would be "coming soon". New Aftermath! products appeared in 2008. By 2010, much of the company's back catalog was available. At that time, FGU sought submissions f new adventures for their existing titles, primarily Aftermath!, Space Opera, and Villains and Vigilantes. Publications Aftermath! Archworld (1977) Bireme & Galley (1978) Blue Light Manual Broadsword Bunnies & Burrows Bushido Castle Plans Chivalry & Sorcery (1st & 2nd editions) Citadel Daredevils Diadem Down Styphon! Fire, Hack & Run Flash Gordon & the Warriors of Mongo Flashing Blades Frederick the Great Freedom Fighters Galactic Conquest Gangster! Gladiators
systems—and quantitative estimates of these advantage—are presented by . In prosaic terms, a hierarchy is "a collection of elements that combine lawfully into complex wholes which depend for their properties upon those of their constituent parts," and wherein novelty is "fundamentally combinatorial, iterative, and transparent" . An important notion that always arises in connection with hierarchies is modularity, which is effectively implied by the sparseness of connections in hierarchical topologies. In physical systems, a module is generally a set of interacting components that relates to the external world via a very limited interface, thus concealing most aspects of its internal structure. As a result, modifications that are made to the internals of a module (to improve efficiency for example) do not necessarily create a ripple effect through the rest of the system . This feature makes the effective use of modularity a centerpiece of all good software and hardware engineering. Inevitability of hierarchy and modularity There are many compelling arguments regarding the prevalence and necessity of hierarchy/modularity in nature . points out that among evolving systems, only those that can manage to obtain and then reuse stable subassemblies (modules) are likely to be able to search through the fitness landscape with a reasonably quick pace; thus, Simon submits that "among possible complex forms, hierarchies are the ones that have the time to evolve." This line of thinking has led to the even stronger claim that although "we do not know what forms of life have evolved on other planets in the universe, ... we can safely assume that 'wherever there is life, it must be hierarchically organized'" . This would be a fortunate state of affairs since the existence of simple and isolable subsystems is thought to be a precondition for successful science . In any case, experience certainly seems to indicate that much of the world possesses hierarchical structure. It has been proposed that perception itself is a process of hierarchical decomposition , and that phenomena which are not essentially hierarchical in nature may not even be "theoretically intelligible" to the human mind (,). In Simon's words, Applications Practical applications of functional decomposition are found in Bayesian networks, structural equation modeling, linear systems, and database systems. Knowledge representation Processes related to functional decomposition are prevalent throughout the fields of knowledge representation and machine learning. Hierarchical model induction techniques such as Logic circuit minimization, decision trees, grammatical inference, hierarchical clustering, and quadtree decomposition are all examples of function decomposition. A review of other applications and function decomposition can be found in , which also presents methods based on information theory and graph theory. Many statistical inference methods can be thought of as implementing a function decomposition process in the presence of noise; that is, where functional dependencies are only expected to hold approximately. Among such models are mixture models and the recently popular methods referred to as "causal decompositions" or Bayesian networks. Database theory See database normalization. Machine learning In practical scientific applications, it is almost never possible to achieve perfect functional decomposition because of the incredible complexity of the systems under study. This complexity is manifested in the presence of "noise," which is just a designation for all the unwanted and untraceable influences on our observations. However, while perfect functional decomposition is usually impossible, the spirit lives on in a large number of statistical methods that are equipped to deal with noisy systems. When a natural or artificial system is intrinsically hierarchical, the joint distribution on system variables should provide evidence of this hierarchical structure. The task of an observer who seeks to understand the system is then to infer the hierarchical structure from observations of these variables. This is the notion behind the hierarchical decomposition of a joint distribution, the attempt to recover something of the intrinsic hierarchical structure which generated that joint distribution. As an example, Bayesian network methods attempt to decompose a joint distribution along its causal fault lines, thus "cutting nature at its seams". The essential motivation behind these methods is again that within most systems (natural or artificial), relatively few components/events interact with one another directly on equal footing . Rather, one observes pockets of dense connections (direct interactions) among small subsets of components, but only loose connections between these densely connected subsets. There is thus a notion of "causal proximity" in physical systems under which variables naturally precipitate into small clusters. Identifying these clusters and using them to represent the joint provides the basis for great efficiency of storage (relative to the full joint distribution) as well as for potent inference algorithms. Software architecture Functional Decomposition is a design method intending to produce a non-implementation, architectural description of a computer program. Rather than conjecturing Objects and adding methods to them (OOP), with each Object intending to capture some service of the program, the software architect first establishes a series of functions and types that accomplishes the main processing problem of the computer program, decomposes each to reveal common functions and types, and finally derives Modules from this activity. For example, the design of the editor Emacs can initially be thought about in terms of functions: And a possible function decomposition of f: This leads one to the plausible Module, Service, or Object, of an interpreter (containing the function fromExpr). Function Decomposition arguably yields insights about re-usability, such as if during the course of analysis, two functions produce the same type, it is likely that a common function/cross-cutting concern resides in both. To contrast, in OOP, it is a common practice to conjecture Modules prior to considering such a decomposition. This arguably results in costly refactoring later. FD mitigates that risk to some extent. Further, arguably, what separates FD from other design methods- is that it provides a concise high-level medium of architectural discourse that is end-to-end, revealing flaws in upstream requirements and beneficially exposing more design decisions in advance. And lastly, FD is known to prioritize development. Arguably, if the FD is correct, the most re-usable and cost-determined parts of the program are identified far earlier in the development cycle. Signal processing Functional decomposition is used in the analysis of many signal processing systems, such as LTI systems. The input signal to an LTI system can be expressed as a function, . Then can be decomposed into a linear combination of other functions, called component signals: Here, are the component signals. Note that are constants. This decomposition aids in analysis, because now the output of the system can be expressed in terms of the components of the input. If we let represent the effect of the system, then the output signal is , which can be expressed as: In other words, the system can be seen as acting separately on each of the components of the input signal. Commonly used examples of this type of decomposition are the Fourier series and the Fourier transform. Systems engineering Functional decomposition in systems engineering refers to the process of defining a system in functional terms, then defining lower-level functions and sequencing relationships from these higher level systems functions. The basic idea is to
other function. Thus, we would say that the function is decomposed into functions . This process is intrinsically hierarchical in the sense that we can (and often do) seek to further decompose the functions into a collection of constituent functions such that where is some other function. Decompositions of this kind are interesting and important for a wide variety of reasons. In general, functional decompositions are worthwhile when there is a certain "sparseness" in the dependency structure; that is, when constituent functions are found to depend on approximately disjoint sets of variables. Thus, for example, if we can obtain a decomposition of into a hierarchical composition of functions such that , , , as shown in the figure at right, this would probably be considered a highly valuable decomposition. Example: Arithmetic A basic example of functional decomposition is expressing the four binary arithmetic operations of addition, subtraction, multiplication, and division in terms of the two binary operations of addition and multiplication and the two unary operations of additive inversion and multiplicative inversion Subtraction can then be realized as the composition of addition and additive inversion, and division can be realized as the composition of multiplication and multiplicative inverse, This simplifies the analysis of subtraction and division, and also makes it easier to axiomatize these operations in the notion of a field, as there are only two binary and two unary operations, rather than four binary operations. Extending these primitive operations, there is a rich literature on the topic of polynomial decomposition. Example: Decomposition of continuous functions Motivation for decomposition As to why the decomposition is valuable, the reason is twofold. Firstly, decomposition of a function into non-interacting components generally permits more economical representations of the function. For example, on a set of quaternary (i.e., 4-ary) variables, representing the full function requires storing values, the value of the function for each element in the Cartesian product , i.e., each of the 1024 possible combinations for . However, if the decomposition into given above is possible, then requires storing 4 values, requires storing values, and again requires storing just 4 values. So in virtue of the decomposition, we need store only values rather than 1024 values, a dramatic savings. Intuitively, this reduction in representation size is achieved simply because each variable depends only on a subset of the other variables. Thus, variable only depends directly on variable , rather than depending on the entire set of variables. We would say that variable screens off variable from the rest of the world. Practical examples of this phenomenon surround us, as discussed in the "Philosophical Considerations" below, but let's just consider the particular case of "northbound traffic on the West Side Highway." Let us assume this variable () takes on three possible values of {"moving slow", "moving deadly slow", "not moving at all"}. Now let's say variable depends on two other variables, "weather" with values of {"sun", "rain", "snow"}, and "GW Bridge traffic" with values {"10mph", "5mph", "1mph"}. The point here is that while there are certainly many secondary variables that affect the weather variable (e.g., low pressure system over Canada, butterfly flapping in Japan, etc.) and the Bridge traffic variable (e.g., an accident on I-95, presidential motorcade, etc.) all these other secondary variables are not directly relevant to the West Side Highway traffic. All we need (hypothetically) in order to predict the West Side Highway traffic is the weather and the GW Bridge traffic, because these two variables screen off West Side Highway traffic from all other potential influences. That is, all other influences act through them. Outside of purely mathematical considerations, perhaps the greatest value of functional decomposition is the insight it provides into the structure of the world. When a functional decomposition can be achieved, this provides ontological information about what structures actually exist in the world, and how they can be predicted and manipulated. For example, in the illustration above, if it is learned that depends directly only on , this means that for purposes of prediction of , it suffices to know only . Moreover, interventions to influence can be taken directly on , and nothing additional can be gained by intervening on variables , since these only act through in any case. Philosophical considerations The philosophical antecedents and ramifications of functional decomposition are quite broad, as functional decomposition in one guise or another underlies all of modern science. Here we review just a few of these philosophical considerations. Reductionist tradition
often found themselves on the same side of debates. But Boas worked more closely with Bastian, who was noted for his antipathy to environmental determinism. Instead, he argued for the "psychic unity of mankind", a belief that all humans had the same intellectual capacity, and that all cultures were based on the same basic mental principles. Variations in custom and belief, he argued, were the products of historical accidents. This view resonated with Boas's experiences on Baffin Island and drew him towards anthropology. While at the Royal Ethnological Museum Boas became interested in the Native Americans in the Pacific Northwest, and after defending his habilitation thesis, he left for a three-month trip to British Columbia via New York. In January 1887, he was offered a job as assistant editor of the journal Science. Alienated by growing antisemitism and nationalism as well as the very limited academic opportunities for a geographer in Germany, Boas decided to stay in the United States. Possibly he received additional motivation for this decision from his romance with Marie Krackowizer, whom he married in the same year. With a family underway and under financial stress, Boas also resorted to pilfering bones and skulls from native burial sites to sell to museums. Aside from his editorial work at Science, Boas secured an appointment as docent in anthropology at Clark University, in 1888. Boas was concerned about university president G. Stanley Hall's interference in his research, yet in 1889 he was appointed as the head of a newly created department of anthropology at Clark University. In the early 1890s, he went on a series of expeditions which were referred to as the Morris K. Jesup Expedition. The primary goal of these expeditions was to illuminate Asiatic-American relations. In 1892 Boas, along with another member of the Clark faculty, resigned in protest of the alleged infringement by Hall on academic freedom. World's Columbian Exposition Anthropologist Frederic Ward Putnam, director and curator of the Peabody Museum at Harvard University, who had been appointed as head of the Department of Ethnology and Archeology for the Chicago Fair in 1892, chose Boas as his first assistant at Chicago to prepare for the 1893 World's Columbian Exposition or Chicago World's Fair, the 400th anniversary of Christopher Columbus's arrival in the Americas. Boas had a chance to apply his approach to exhibits. Boas directed a team of about one hundred assistants, mandated to create anthropology and ethnology exhibits on the Indians of North America and South America that were living at the time Christopher Columbus arrived in America while searching for India. Putnam intended the World's Columbian Exposition to be a celebration of Columbus' voyage. Putnam argued that showing late nineteenth century Inuit and First Nations (then called Eskimo and Indians) "in their natural conditions of life" would provide a contrast and celebrate the four centuries of Western accomplishments since 1493. Franz Boas traveled north to gather ethnographic material for the Exposition. Boas had intended public science in creating exhibitions for the Exposition where visitors to the Midway could learn about other cultures. Boas arranged for fourteen Kwakwaka'wakw aboriginals from British Columbia to come and reside in a mock Kwakwaka'wakw village, where they could perform their daily tasks in context. Inuit were there with 12-foot-long whips made of sealskin, wearing sealskin clothing and showing how adept they were in sealskin kayaks. His experience with the Exposition provided the first of a series of shocks to Franz Boas' faith in public anthropology. The visitors were not there to be educated. By 1916, Boas had come to recognize with a certain resignation that "the number of people in our country who are willing and able to enter into the modes of thought of other nations is altogether too small ... The American who is cognizant only of his own standpoint sets himself up as arbiter of the world." After the exposition, the ethnographic material collected formed the basis of the newly created Field Museum in Chicago with Boas as the curator of anthropology. He worked there until 1894, when he was replaced (against his will) by BAE archeologist William Henry Holmes. In 1896, Boas was appointed Assistant Curator of Ethnology and Somatology of the American Museum of Natural History under Putnam. In 1897, he organized the Jesup North Pacific Expedition, a five-year-long field-study of the nations of the Pacific Northwest, whose ancestors had migrated across the Bering Strait from Siberia. He attempted to organize exhibits along contextual, rather than evolutionary, lines. He also developed a research program in line with his curatorial goals: describing his instructions to his students in terms of widening contexts of interpretation within a society, he explained that "... they get the specimens; they get explanations of the specimens; they get connected texts that partly refer to the specimens and partly to abstract things concerning the people; and they get grammatical information". These widening contexts of interpretation were abstracted into one context, the context in which the specimens, or assemblages of specimens, would be displayed: "... we want a collection arranged according to tribes, in order to teach the particular style of each group". His approach, however, brought him into conflict with the President of the Museum, Morris Jesup, and its director, Hermon Bumpus. By 1900 Boas had begun to retreat from American museum anthropology as a tool of education or reform (Hinsley 1992: 361). He resigned in 1905, never to work for a museum again. Late 19th century debates Science versus history Some scholars, like Boas's student Alfred Kroeber, believed that Boas used his research in physics as a model for his work in anthropology. Many others, however—including Boas's student Alexander Lesser, and later researchers such as Marian W. Smith, Herbert S. Lewis, and Matti Bunzl—have pointed out that Boas explicitly rejected physics in favor of history as a model for his anthropological research. This distinction between science and history has its origins in 19th-century German academe, which distinguished between Naturwissenschaften (the sciences) and Geisteswissenschaften (the humanities), or between Gesetzwissenschaften (the law - giving sciences) and Geschichtswissenschaften (history). Generally, Naturwissenschaften and Gesetzwissenschaften refer to the study of phenomena that are governed by objective natural laws, while the latter terms in the two oppositions refer to those phenomena that have to mean only in terms of human perception or experience. In 1884, Kantian philosopher Wilhelm Windelband coined the terms nomothetic and idiographic to describe these two divergent approaches. He observed that most scientists employ some mix of both, but in differing proportions; he considered physics a perfect example of a nomothetic science, and history, an idiographic science. Moreover, he argued that each approach has its origin in one of the two "interests" of reason Kant had identified in the Critique of Judgement—one "generalizing", the other "specifying". (Winkelband's student Heinrich Rickert elaborated on this distinction in The Limits of Concept Formation in Natural Science : A Logical Introduction to the Historical Sciences; Boas's students Alfred Kroeber and Edward Sapir relied extensively on this work in defining their own approach to anthropology.) Although Kant considered these two interests of reason to be objective and universal, the distinction between the natural and human sciences was institutionalized in Germany, through the organization of scholarly research and teaching, following the Enlightenment. In Germany, the Enlightenment was dominated by Kant himself, who sought to establish principles based on universal rationality. In reaction to Kant, German scholars such as Johann Gottfried Herder (an influence to Boas) argued that human creativity, which necessarily takes unpredictable and highly diverse forms, is as important as human rationality. In 1795, the great linguist and philosopher Wilhelm von Humboldt called for an anthropology that would synthesize Kant's and Herder's interests. Humboldt founded the University of Berlin in 1809, and his work in geography, history, and psychology provided the milieu in which Boas's intellectual orientation matured. Historians working in the Humboldtian tradition developed ideas that would become central in Boasian anthropology. Leopold von Ranke defined the task of the historian as "merely to show as it actually was", which is a cornerstone of Boas's empiricism. Wilhelm Dilthey emphasized the centrality of "understanding" to human knowledge, and that the lived experience of a historian could provide a basis for an empathic understanding of the situation of a historical actor. For Boas, both values were well-expressed in a quote from Goethe: "A single action or event is interesting, not because it is explainable, but because it is true." The influence of these ideas on Boas is apparent in his 1887 essay, "The Study of Geography", in which he distinguished between physical science, which seeks to discover the laws governing phenomena, and historical science, which seeks a thorough understanding of phenomena on their own terms. Boas argued that geography is and must be historical in this sense. In 1887, after his Baffin Island expedition, Boas wrote "The Principles of Ethnological Classification", in which he developed this argument in application to anthropology: This formulation echoes Ratzel's focus on historical processes of human migration and culture contact and Bastian's rejection of environmental determinism. It also emphasizes culture as a context ("surroundings"), and the importance of history. These are the hallmarks of Boasian anthropology (which Marvin Harris would later call "historical particularism"), would guide Boas's research over the next decade, as well as his instructions to future students. (See Lewis 2001b for an alternative view to Harris'.) Although context and history were essential elements to Boas's understanding of anthropology as Geisteswissenschaften and Geschichtswissenschaften, there is one essential element that Boasian anthropology shares with Naturwissenschaften: empiricism. In 1949, Boas's student, Alfred Kroeber summed up the three principles of empiricism that define Boasian anthropology as a science: The method of science is, to begin with, questions, not with answers, least of all with value judgments. Science is a dispassionate inquiry and therefore cannot take over outright any ideologies "already formulated in everyday life" since these are themselves inevitably traditional and normally tinged with emotional prejudice. Sweeping all-or-none, black-and-white judgments are characteristic of categorical attitudes and have no place in science, whose very nature is inferential and judicious. Orthogenetic versus Darwinian evolution One of the greatest accomplishments of Boas and his students was their critique of theories of physical, social, and cultural evolution current at that time. This critique is central to Boas's work in museums, as well as his work in all four fields of anthropology. As historian George Stocking noted, however, Boas's main project was to distinguish between biological and cultural heredity, and to focus on the cultural processes that he believed had the greatest influence over social life. In fact, Boas supported Darwinian theory, although he did not assume that it automatically applied to cultural and historical phenomena (and indeed was a lifelong opponent of 19th-century theories of cultural evolution, such as those of Lewis H. Morgan and Edward Burnett Tylor). The notion of evolution that the Boasians ridiculed and rejected was the then dominant belief in orthogenesis—a determinate or teleological process of evolution in which change occurs progressively regardless of natural selection. Boas rejected the prevalent theories of social evolution developed by Edward Burnett Tylor, Lewis Henry Morgan, and Herbert Spencer not because he rejected the notion of "evolution" per se, but because he rejected orthogenetic notions of evolution in favor of Darwinian evolution. The difference between these prevailing theories of cultural evolution and Darwinian theory cannot be overstated: the orthogeneticists argued that all societies progress through the same stages in the same sequence. Thus, although the Inuit with whom Boas worked at Baffin Island, and the Germans with whom he studied as a graduate student, were contemporaries of one another, evolutionists argued that the Inuit were at an earlier stage in their evolution, and Germans at a later stage. Boasians argued that virtually every claim made by cultural evolutionists was contradicted by the data, or reflected a profound misinterpretation of the data. As Boas's student Robert Lowie remarked, "Contrary to some misleading statements on the subject, there have been no responsible opponents of evolution as 'scientifically proved', though there has been determined hostility to an evolutionary metaphysics that falsifies the established facts". In an unpublished lecture, Boas characterized his debt to Darwin thus: Although the idea does not appear quite definitely expressed in Darwin's discussion of the development of mental powers, it seems quite clear that his main object has been to express his conviction that the mental faculties developed essentially without a purposive end, but they originated as variations, and were continued by natural selection. This idea was also brought out very clearly by Wallace, who emphasized that apparently reasonable activities of man might very well have developed without an actual application of reasoning. Thus, Boas suggested that what appear to be patterns or structures in a culture were not a product of conscious design, but rather the outcome of diverse mechanisms that produce cultural variation (such as diffusion and independent invention), shaped by the social environment in which people live and act. Boas concluded his lecture by acknowledging the importance of Darwin's work: "I hope I may have succeeded in presenting to you, however imperfectly, the currents of thought due to the work of the immortal Darwin which have helped to make anthropology what it is at the present time." Early career: museum studies In the late 19th century anthropology in the United States was dominated by the Bureau of American Ethnology, directed by John Wesley Powell, a geologist who favored Lewis Henry Morgan's theory of cultural evolution. The BAE was housed at the Smithsonian Institution in Washington, and the Smithsonian's curator for ethnology, Otis T. Mason, shared Powell's commitment to cultural evolution. (The Peabody Museum at Harvard University was an important, though lesser, center of anthropological research.) It was while working on museum collections and exhibitions that Boas formulated his basic approach to culture, which led him to break with museums and seek to establish anthropology as an academic discipline. During this period Boas made five more trips to the Pacific Northwest. His continuing field research led him to think of culture as a local context for human action. His emphasis on local context and history led him to oppose the dominant model at the time, cultural evolution. Boas initially broke with evolutionary theory over the issue of kinship. Lewis Henry Morgan had argued that all human societies move from an initial form of matrilineal organization to patrilineal organization. First Nations groups on the northern coast of British Columbia, like the Tsimshian, and Tlingit, were organized into matrilineal clans. First Nations on the southern coast, like the Nootka and the Salish, however, were organized into patrilineal groups. Boas focused on the Kwakiutl, who lived between the two clusters. The Kwakiutl seemed to have a mix of features. Prior to marriage, a man would assume his wife's father's name and crest. His children took on these names and crests as well, although his sons would lose them when they got married. Names and crests thus stayed in the mother's line. At first, Boas—like Morgan before him—suggested that the Kwakiutl had been matrilineal like their neighbors to the north, but that they were beginning to evolve patrilineal groups. In 1897, however, he repudiated himself, and argued that the Kwakiutl were changing from a prior patrilineal organization to a matrilineal one, as they learned about matrilineal principles from their northern neighbors. Boas's rejection of Morgan's theories led him, in an 1887 article, to challenge Mason's principles of museum display. At stake, however, were more basic issues of causality and classification. The evolutionary approach to material culture led museum curators to organize objects on display according to function or level of technological development. Curators assumed that changes in the forms of artifacts reflect some natural process of progressive evolution. Boas, however, felt that the form an artifact took reflected the circumstances under which it was produced and used. Arguing that "[t]hough like causes have like effects like effects have not like causes", Boas realized that even artifacts that were similar in form might have developed in very different contexts, for different reasons. Mason's museum displays, organized along evolutionary lines, mistakenly juxtapose like effects; those organized along contextual lines would reveal like causes. Minik Wallace In his capacity as Assistant Curator at the American Museum of Natural History, Franz Boas requested that Arctic explorer Robert E. Peary bring one Inuk from Greenland to New York. Peary obliged and brought six Inuit to New York in 1897 who lived in the basement of the American Museum of Natural History. Four of them died from tuberculosis within a year of arriving in New York, one returned to Greenland, and a young boy, Minik Wallace, remained living in the museum. Boas staged a funeral for the father of the boy and had the remains dissected and placed in the museum. Boas has been widely critiqued for his role in bringing the Inuit to New York and his disinterest in them once they had served their purpose at the museum. Later career: academic anthropology Boas was appointed a lecturer in physical anthropology at Columbia University in 1896, and promoted to professor of anthropology in 1899. However, the various anthropologists teaching at Columbia had been assigned to different departments. When Boas left the Museum of Natural History, he negotiated with Columbia University to consolidate the various professors into one department, of which Boas would take charge. Boas's program at Columbia was the first Doctor of Philosophy (PhD) program in anthropology in America. During this time Boas played a key role in organizing the American Anthropological Association (AAA) as an umbrella organization for the emerging field. Boas originally wanted the AAA to be limited to professional anthropologists, but William John McGee (another geologist who had joined the BAE under Powell's leadership) argued that the organization should have an open membership. McGee's position prevailed and he was elected the organization's first president in 1902; Boas was elected a vice-president, along with Putnam, Powell, and Holmes. At both Columbia and the AAA, Boas encouraged the "four-field" concept of anthropology; he personally contributed to physical anthropology, linguistics, archaeology, as well as cultural anthropology. His work in these fields was pioneering: in physical anthropology he led scholars away from static taxonomical classifications of race, to an emphasis on human biology and evolution; in linguistics he broke through the limitations of classic philology and established some of the central problems in modern linguistics and cognitive anthropology; in cultural anthropology he (along with the Polish-English anthropologist Bronisław Malinowski) established the contextualist approach to culture, cultural relativism, and the participant observation method of fieldwork. The four-field approach understood not merely as bringing together different kinds of anthropologists into one department, but as reconceiving anthropology through the integration of different objects of anthropological research into one overarching object, was one of Boas's fundamental contributions to the discipline, and came to characterize American anthropology against that of England, France, or Germany. This approach defines as its object the human species as a totality. This focus did not lead Boas to seek to reduce all forms of humanity and human activity to some lowest common denominator; rather, he understood the essence of the human species to be the tremendous variation in human form and activity (an approach that parallels Charles Darwin's approach to species in general). In his 1907 essay, "Anthropology", Boas identified two basic questions for anthropologists: "Why are the tribes and nations of the world different, and how have the present differences developed?" Amplifying these questions, he explained the object of anthropological study thus: We do not discuss the anatomical, physiological, and mental characteristics of a man considered as an individual; but we are interested in the diversity of these traits in groups of men found in different geographical areas and in different social classes. It is our task to inquire into the causes that have brought about the observed differentiation and to investigate the sequence of events that have led to the establishment of the multifarious forms of human life. In other words, we are interested in the anatomical and mental characteristics of men living under the same biological, geographical, and social environment, and as determined by their past. These questions signal a marked break from then-current ideas about human diversity, which assumed that some people have a history, evident in a historical (or written) record, while other people, lacking writing, also lack history. For some, this distinction between two different kinds of societies explained the difference between history, sociology, economics and other disciplines that focus on people with writing, and anthropology, which was supposed to focus on people without writing. Boas rejected this distinction between kinds of societies, and this division of labor in the academy. He understood all societies to have a history, and all societies to be proper objects of the anthropological society. In order to approach literate and non-literate societies the same way, he emphasized the importance of studying human history through the analysis of other things besides written texts. Thus, in his 1904 article, "The History of Anthropology", Boas wrote that The historical development of the work of anthropologists seems to single out clearly a domain of knowledge that heretofore has not been treated by any other science. It is the biological history of mankind in all its varieties; linguistics applied to people without written languages; the ethnology of people without historical records; and prehistoric archeology. Historians and social theorists in the 18th and 19th centuries had speculated as to the causes of this differentiation, but Boas dismissed these theories, especially the dominant theories of social evolution and cultural evolution as speculative. He endeavored to establish a discipline that would base its claims on a rigorous empirical study. One of Boas's most important books, The Mind of Primitive Man (1911), integrated his theories concerning the history and development of cultures and established a program that would dominate American anthropology for the next fifteen years. In this study, he established that in any given population, biology, language, material, and symbolic culture, are autonomous; that each is an equally important dimension of human nature, but that no one of these dimensions is reducible to another. In other words, he established that culture does not depend on any independent variables. He emphasized that the biological, linguistic, and cultural traits of any group of people are the product of historical developments involving both cultural and non-cultural forces. He established that cultural plurality is a fundamental feature of humankind and that the specific cultural environment structures much individual behavior. Boas also presented himself as a role model for the citizen-scientist, who understand that even were the truth pursued as its own end, all knowledge has moral consequences. The Mind of Primitive Man ends with an appeal to humanism: I hope the discussions outlined in these pages have shown that the data of anthropology teach us a greater tolerance of forms of civilization different from our own, that we should learn to look on foreign races with greater sympathy and with a conviction that, as all races have contributed in the past to cultural progress in one way or another, so they will be capable of advancing the interests of mankind if we are only willing to give them a fair opportunity. Physical anthropology Boas's work in physical anthropology brought together his interest in Darwinian evolution with his interest in migration as a cause of change. His most important research in this field was his study of changes in the body from among children of immigrants in New York. Other researchers had already noted differences in height, cranial measurements, and other physical features between Americans and people from different parts of Europe. Many used these differences to argue that there is an innate biological difference between races. Boas's primary interest—in symbolic and material culture and in language—was the study of processes of change; he, therefore, set out to determine whether bodily forms are also subject to processes of change. Boas studied 17,821 people, divided into seven ethno-national groups. Boas found that average measures of the cranial size of immigrants were significantly different from members of these groups who were born in the United States. Moreover, he discovered that average measures of the cranial size of children born within ten years of their mothers' arrival were significantly different from those of children born more than ten years after their mothers' arrival. Boas did not deny that physical features such as height or cranial size were inherited; he did, however, argue that the environment has an influence on these features, which is expressed through change over time. This work was central to his influential argument that differences between races were not immutable. Boas observed: The head form, which has always been one of the most stable and permanent characteristics of human races, undergoes far-reaching changes due to the transfer of European races to American soil. The East European Hebrew, who has a round head, becomes more long-headed; the South Italian, who in Italy has an exceedingly long head, becomes more short-headed; so that both approach a uniform type in this country, so far as the head is concerned. These findings were radical at the time and continue to be debated. In 2002, the anthropologists Corey S. Sparks and Richard L. Jantz claimed that differences between children born to the same parents in Europe and America were very small and insignificant and that there was no detectable effect of exposure to the American environment on the cranial index in children. They argued that their results contradicted Boas's original findings and demonstrated that they may no longer be used to support arguments of plasticity in cranial morphology. However, Jonathan Marks—a well-known physical anthropologist and former president of the General Anthropology section of the American Anthropological Association—has remarked that this revisionist study of Boas's work "has the ring of desperation to it (if not obfuscation), and has been quickly rebutted by more mainstream biological anthropology". In 2003 anthropologists Clarence C. Gravlee, H. Russell Bernard, and William R. Leonard reanalyzed Boas's data and concluded that most of Boas's original findings were correct. Moreover, they applied new statistical, computer-assisted methods to Boas's data and discovered more evidence for cranial plasticity. In a later publication, Gravlee, Bernard and Leonard reviewed Sparks and Jantz's analysis. They argue that Sparks and Jantz misrepresented Boas's claims and that Sparks's and Jantz's data actually support Boas. For example, they point out that Sparks and Jantz look at changes in cranial size in relation to how long an individual has been in the United States in order to test the influence of the environment. Boas, however, looked at changes in cranial size in relation to how long the mother had been in the United States. They argue that Boas's method is more useful because the prenatal environment is a crucial developmental factor. A further publication by Jantz based on Gravlee et al. claims that Boas had cherry picked two groups of immigrants (Sicilians and Hebrews) which had varied most towards the same mean, and discarded other groups which had varied in the opposite direction. He commented, "Using the recent reanalysis by Gravlee et al. (2003), we can observe in Figure 2 that the maximum difference in the cranial index due to immigration (in Hebrews) is much smaller than the maximum ethnic difference, between Sicilians and Bohemians. It shows that long-headed parents produce long headed offspring and vice versa. To make the argument that children of immigrants converge onto an "American type" required Boas to use the two groups that changed the most." Although some sociobiologists and evolutionary psychologists have suggested that Boas was opposed to Darwinian evolution, Boas, in fact, was a committed proponent of Darwinian evolutionary thought. In 1888, he declared that "the development of ethnology is largely due to the general recognition of the principle of biological evolution". Since Boas's times, physical anthropologists have established that the human capacity for culture is a product of human evolution. In fact, Boas's research on changes in body form played an important role in the rise of Darwinian theory. Boas was trained at a time when biologists had no understanding of genetics; Mendelian genetics became widely known only after 1900. Prior to that time biologists relied on the measurement of physical traits as empirical data for any theory of evolution. Boas's biometric studies led him to question the use of this method and kind of data. In a speech to anthropologists in Berlin in 1912, Boas argued that at best such statistics could only raise biological questions, and not answer them. It was in this context that anthropologists began turning to genetics as a basis for any understanding of biological variation. Linguistics Boas also contributed greatly to the foundation of linguistics as a science in the United States. He published many descriptive studies of Native American languages, and wrote on theoretical difficulties in classifying languages, and laid out a research program for studying the relations between language and culture which his students such as Edward Sapir, Paul Rivet, and Alfred Kroeber followed. His 1889 article "On Alternating Sounds", however, made a singular contribution to the methodology of both linguistics and cultural anthropology. It is a response to a paper presented in 1888 by Daniel Garrison Brinton, at the time a professor of American linguistics and archeology at the University of Pennsylvania. Brinton observed that in the spoken languages of many Native Americans, certain sounds regularly alternated. Brinton argued that this pervasive inconsistency was a sign of linguistic and evolutionary inferiority. Boas had heard similar phonetic shifts during his research in Baffin Island and in the Pacific Northwest. Nevertheless, he argued that "alternating sounds" is not at all a feature of Native American languages—indeed, he argued, they do not really exist. Rather than take alternating sounds as objective proof of different stages in cultural evolution, Boas considered them in terms of his longstanding interest in the subjective perception of objective physical phenomena. He also considered his earlier critique of evolutionary museum displays. There, he pointed out that two things (artifacts of material culture) that appear to be similar may, in fact, be quite different. In this article, he raises the possibility that two things (sounds) that appear to be different may, in fact, be the same. In short, he shifted attention to the perception of different sounds. Boas begins by raising an empirical question: when people describe one sound in different ways, is it because they cannot perceive the difference, or might there be another reason? He immediately establishes that he is not concerned with cases involving perceptual deficit—the aural equivalent of color-blindness. He points out that the question of people who describe one sound in different ways is comparable to that of people who describe different sounds in one way. This is crucial for research in descriptive linguistics: when studying a new language, how are we to note the pronunciation of different words? (in this point, Boas anticipates and lays the groundwork for the distinction between phonemics and phonetics.) People may pronounce a word in a variety of ways and still recognize that they are using the same word. The issue, then, is not "that such sensations are not recognized in their individuality" (in other words, people recognize differences in pronunciations); rather, it is that sounds "are classified according to their similarity" (in other words, that people classify a variety of perceived sounds into one category). A comparable visual example would involve words for colors. The English word green can be used to refer to a variety of shades, hues, and tints. But there are some languages that have no word for green. In such cases, people might classify what we would call green as either yellow or blue. This is not an example of color-blindness—people can perceive differences in color, but they categorize similar colors in a different way than English speakers. Boas applied these principles to his studies of Inuit languages. Researchers have reported a variety of spellings for a given word. In the past, researchers have interpreted this data in a number of ways—it could indicate local variations in the pronunciation of a word, or it could indicate different dialects. Boas argues an alternative explanation: that the difference is not in how Inuit pronounce the word, but rather in how English-speaking scholars perceive the pronunciation of the word. It is not that English speakers are physically incapable of perceiving the sound in question; rather, the phonetic system of English cannot accommodate the perceived sound. Although Boas was making a very specific contribution to the methods of descriptive linguistics, his ultimate point is far reaching: observer bias need not be personal, it can be cultural. In other words, the perceptual categories of Western researchers may systematically cause a Westerner to misperceive or to fail to perceive entirely a meaningful element in another culture. As in his critique of Otis Mason's museum displays, Boas demonstrated that what appeared to be evidence of cultural evolution was really the consequence of unscientific methods and a reflection of Westerners' beliefs about their own cultural superiority. This point provides the methodological foundation for Boas's cultural relativism: elements of a culture are meaningful in that culture's terms, even
parents produce long headed offspring and vice versa. To make the argument that children of immigrants converge onto an "American type" required Boas to use the two groups that changed the most." Although some sociobiologists and evolutionary psychologists have suggested that Boas was opposed to Darwinian evolution, Boas, in fact, was a committed proponent of Darwinian evolutionary thought. In 1888, he declared that "the development of ethnology is largely due to the general recognition of the principle of biological evolution". Since Boas's times, physical anthropologists have established that the human capacity for culture is a product of human evolution. In fact, Boas's research on changes in body form played an important role in the rise of Darwinian theory. Boas was trained at a time when biologists had no understanding of genetics; Mendelian genetics became widely known only after 1900. Prior to that time biologists relied on the measurement of physical traits as empirical data for any theory of evolution. Boas's biometric studies led him to question the use of this method and kind of data. In a speech to anthropologists in Berlin in 1912, Boas argued that at best such statistics could only raise biological questions, and not answer them. It was in this context that anthropologists began turning to genetics as a basis for any understanding of biological variation. Linguistics Boas also contributed greatly to the foundation of linguistics as a science in the United States. He published many descriptive studies of Native American languages, and wrote on theoretical difficulties in classifying languages, and laid out a research program for studying the relations between language and culture which his students such as Edward Sapir, Paul Rivet, and Alfred Kroeber followed. His 1889 article "On Alternating Sounds", however, made a singular contribution to the methodology of both linguistics and cultural anthropology. It is a response to a paper presented in 1888 by Daniel Garrison Brinton, at the time a professor of American linguistics and archeology at the University of Pennsylvania. Brinton observed that in the spoken languages of many Native Americans, certain sounds regularly alternated. Brinton argued that this pervasive inconsistency was a sign of linguistic and evolutionary inferiority. Boas had heard similar phonetic shifts during his research in Baffin Island and in the Pacific Northwest. Nevertheless, he argued that "alternating sounds" is not at all a feature of Native American languages—indeed, he argued, they do not really exist. Rather than take alternating sounds as objective proof of different stages in cultural evolution, Boas considered them in terms of his longstanding interest in the subjective perception of objective physical phenomena. He also considered his earlier critique of evolutionary museum displays. There, he pointed out that two things (artifacts of material culture) that appear to be similar may, in fact, be quite different. In this article, he raises the possibility that two things (sounds) that appear to be different may, in fact, be the same. In short, he shifted attention to the perception of different sounds. Boas begins by raising an empirical question: when people describe one sound in different ways, is it because they cannot perceive the difference, or might there be another reason? He immediately establishes that he is not concerned with cases involving perceptual deficit—the aural equivalent of color-blindness. He points out that the question of people who describe one sound in different ways is comparable to that of people who describe different sounds in one way. This is crucial for research in descriptive linguistics: when studying a new language, how are we to note the pronunciation of different words? (in this point, Boas anticipates and lays the groundwork for the distinction between phonemics and phonetics.) People may pronounce a word in a variety of ways and still recognize that they are using the same word. The issue, then, is not "that such sensations are not recognized in their individuality" (in other words, people recognize differences in pronunciations); rather, it is that sounds "are classified according to their similarity" (in other words, that people classify a variety of perceived sounds into one category). A comparable visual example would involve words for colors. The English word green can be used to refer to a variety of shades, hues, and tints. But there are some languages that have no word for green. In such cases, people might classify what we would call green as either yellow or blue. This is not an example of color-blindness—people can perceive differences in color, but they categorize similar colors in a different way than English speakers. Boas applied these principles to his studies of Inuit languages. Researchers have reported a variety of spellings for a given word. In the past, researchers have interpreted this data in a number of ways—it could indicate local variations in the pronunciation of a word, or it could indicate different dialects. Boas argues an alternative explanation: that the difference is not in how Inuit pronounce the word, but rather in how English-speaking scholars perceive the pronunciation of the word. It is not that English speakers are physically incapable of perceiving the sound in question; rather, the phonetic system of English cannot accommodate the perceived sound. Although Boas was making a very specific contribution to the methods of descriptive linguistics, his ultimate point is far reaching: observer bias need not be personal, it can be cultural. In other words, the perceptual categories of Western researchers may systematically cause a Westerner to misperceive or to fail to perceive entirely a meaningful element in another culture. As in his critique of Otis Mason's museum displays, Boas demonstrated that what appeared to be evidence of cultural evolution was really the consequence of unscientific methods and a reflection of Westerners' beliefs about their own cultural superiority. This point provides the methodological foundation for Boas's cultural relativism: elements of a culture are meaningful in that culture's terms, even if they may be meaningless (or take on a radically different meaning) in another culture. Cultural anthropology The essence of Boas's approach to ethnography is found in his early essay on "The Study of Geography". There he argued for an approach that When Boas's student Ruth Benedict gave her presidential address to the American Anthropological Association in 1947, she reminded anthropologists of the importance of this idiographic stance by quoting literary critic A. C. Bradley: "We watch 'what is', seeing that so it happened and must have happened". This orientation led Boas to promote a cultural anthropology characterized by a strong commitment to Empiricism (with a resulting skepticism of attempts to formulate "scientific laws" of culture) A notion of culture as fluid and dynamic Ethnographic fieldwork, in which the anthropologist resides for an extended period among the people being researched, conducts research in the native language, and collaborates with native researchers, as a method of collecting data, and Cultural relativism as a methodological tool while conducting fieldwork, and as a heuristic tool while analyzing data. Boas argued that in order to understand "what is"—in cultural anthropology, the specific cultural traits (behaviors, beliefs, and symbols)—one had to examine them in their local context. He also understood that as people migrate from one place to another, and as the cultural context changes over time, the elements of a culture, and their meanings, will change, which led him to emphasize the importance of local histories for an analysis of cultures. Although other anthropologists at the time, such as Bronisław Malinowski and Alfred Reginald Radcliffe-Brown focused on the study of societies, which they understood to be clearly bounded, Boas's attention to history, which reveals the extent to which traits diffuse from one place to another, led him to view cultural boundaries as multiple and overlapping, and as highly permeable. Thus, Boas's student Robert Lowie once described culture as a thing of "shreds and patches". Boas and his students understood that as people try to make sense of their world they seek to integrate its disparate elements, with the result that different cultures could be characterized as having different configurations or patterns. But Boasians also understood that such integration was always in tensions with diffusion, and any appearance of a stable configuration is contingent (see Bashkow 2004: 445). During Boas's lifetime, as today, many Westerners saw a fundamental difference between modern societies, which are characterized by dynamism and individualism, and traditional societies which are stable and homogeneous. Boas's empirical field research, however, led him to argue against this comparison. For example, his 1903 essay, "Decorative Designs of Alaskan Needlecases: A History of Conventional Designs, Based on Materials in a U.S. Museum", provides another example of how Boas made broad theoretical claims based on a detailed analysis of empirical data. After establishing formal similarities among the needlecases, Boas shows how certain formal features provide a vocabulary out of which individual artisans could create variations in design. Thus, his emphasis on culture as a context for meaningful action made him sensitive to individual variation within a society (William Henry Holmes suggested a similar point in an 1886 paper, "Origin and development of form and ornament in ceramic art", although unlike Boas he did not develop the ethnographic and theoretical implications). In a programmatic essay in 1920, "The Methods of Ethnology", Boas argued that instead of "the systematic enumeration of standardized beliefs and customs of a tribe", anthropology needs to document "the way in which the individual reacts to his whole social environment, and to the difference of opinion and of mode of action that occur in primitive society and which are the causes of far-reaching changes". Boas argued that attention to individual agency reveals that "the activities of the individual are determined to a great extent by his social environment, but in turn, his own activities influence the society in which he lives and may bring about modifications in a form". Consequently, Boas thought of culture as fundamentally dynamic: "As soon as these methods are applied, primitive society loses the appearance of absolute stability ... All cultural forms rather appear in a constant state of flux ..." (see Lewis 2001b) Having argued against the relevance of the distinction between literate and non-literate societies as a way of defining anthropology's object of study, Boas argued that non-literate and literate societies should be analyzed in the same way. Nineteenth-century historians had been applying the techniques of philology to reconstruct the histories of, and relationships between, literate societies. In order to apply these methods to non-literate societies, Boas argued that the task of fieldworkers is to produce and collect texts in non-literate societies. This took the form not only of compiling lexicons and grammars of the local language, but of recording myths, folktales, beliefs about social relationships and institutions, and even recipes for local cuisine. In order to do this, Boas relied heavily on the collaboration of literate native ethnographers (among the Kwakiutl, most often George Hunt), and he urged his students to consider such people valuable partners, inferior in their standing in Western society, but superior in their understanding of their own culture. (see Bunzl 2004: 438–439) Using these methods, Boas published another article in 1920, in which he revisited his earlier research on Kwakiutl kinship. In the late 1890s, Boas had tried to reconstruct transformation in the organization of Kwakiutl clans, by comparing them to the organization of clans in other societies neighboring the Kwakiutl to the north and south. Now, however, he argued against translating the Kwakiutl principle of kin groups into an English word. Instead of trying to fit the Kwakiutl into some larger model, he tried to understand their beliefs and practices in their own terms. For example, whereas he had earlier translated the Kwakiutl word numaym as "clan", he now argued that the word is best understood as referring to a bundle of privileges, for which there is no English word. Men secured claims to these privileges through their parents or wives, and there were a variety of ways these privileges could be acquired, used, and transmitted from one generation to the next. As in his work on alternating sounds, Boas had come to realize that different ethnological interpretations of Kwakiutl kinship were the result of the limitations of Western categories. As in his work on Alaskan needlecases, he now saw variation among Kwakiutl practices as the result of the play between social norms and individual creativity. Before his death in 1942, he appointed Helen Codere to edit and publish his manuscripts about the culture of the Kwakiutl people. Franz Boas and folklore Franz Boas was an immensely influential figure throughout the development of folklore as a discipline. At first glance, it might seem that his only concern was for the discipline of anthropology—after all, he fought for most of his life to keep folklore as a part of anthropology. Yet Boas was motivated by his desire to see both anthropology and folklore become more professional and well-respected. Boas was afraid that if folklore was allowed to become its own discipline the standards for folklore scholarship would be lowered. This, combined with the scholarships of "amateurs", would lead folklore to be completely discredited, Boas believed. In order to further professionalize folklore, Boas introduced the strict scientific methods which he learned in college to the discipline. Boas championed the use of exhaustive research, fieldwork, and strict scientific guidelines in folklore scholarship. Boas believed that a true theory could only be formed from thorough research and that even once you had a theory it should be treated as a "work in progress" unless it could be proved beyond doubt. This rigid scientific methodology was eventually accepted as one of the major tenets of folklore scholarship, and Boas's methods remain in use even today. Boas also nurtured many budding folklorists during his time as a professor, and some of his students are counted among the most notable minds in folklore scholarship. Boas was passionate about the collection of folklore and believed that the similarity of folktales amongst different folk groups was due to dissemination. Boas strove to prove this theory, and his efforts produced a method for breaking a folktale into parts and then analyzing these parts. His creation of "catch-words" allowed for categorization of these parts, and the ability to analyze them in relation to other similar tales. Boas also fought to prove that not all cultures progressed along the same path, and that non-European cultures, in particular, were not primitive, but different. Boas remained active in the development and scholarship of folklore throughout his life. He became the editor of the Journal of American Folklore in 1908, regularly wrote and published articles on folklore (often in the Journal of American Folklore). He helped to elect Louise Pound as president of the American Folklore Society in 1925. Scientist as activist Boas was known for passionately defending what he believed to be right. During his lifetime (and often through his work), Boas combated racism, berated anthropologists and folklorists who used their work as a cover for espionage, worked to protect German and Austrian scientists who fled the Nazi regime, and openly protested Hitlerism. Many social scientists in other disciplines often agonize over the legitimacy of their work as "science" and consequently emphasize the importance of detachment, objectivity, abstraction, and quantifiability in their work. Perhaps because Boas, like other early anthropologists, was originally trained in the natural sciences, he and his students never expressed such anxiety. Moreover, he did not believe that detachment, objectivity, and quantifiability was required to make anthropology scientific. Since the object of study of anthropologists is different from the object of study of physicists, he assumed that anthropologists would have to employ different methods and different criteria for evaluating their research. Thus, Boas used statistical studies to demonstrate the extent to which variation in data is context-dependent, and argued that the context-dependent nature of human variation rendered many abstractions and generalizations that had been passing as scientific understandings of humankind (especially theories of social evolution popular at the time) in fact unscientific. His understanding of ethnographic fieldwork began with the fact that the objects of ethnographic study (e.g., the Inuit of Baffin Island) were not just objects, but subjects, and his research called attention to their creativity and agency. More importantly, he viewed the Inuit as his teachers, thus reversing the typical hierarchical relationship between scientist and object of study. This emphasis on the relationship between anthropologists and those they study—the point that, while astronomers and stars; chemists and elements; botanists and plants are fundamentally different, anthropologists and those they study are equally human—implied that anthropologists themselves could be objects of anthropological study. Although Boas did not pursue this reversal systematically, his article on alternating sounds illustrates his awareness that scientists should not be confident about their objectivity, because they too see the world through the prism of their culture. This emphasis also led Boas to conclude that anthropologists have an obligation to speak out on social issues. Boas was especially concerned with racial inequality, which his research had indicated is not biological in origin, but rather social. Boas is credited as the first scientist to publish the idea that all people—including white and African Americans—are equal. He often emphasized his abhorrence of racism, and used his work to show that there was no scientific basis for such a bias. An early example of this concern is evident in his 1906 commencement address to Atlanta University, at the invitation of W. E. B. Du Bois. Boas began by remarking that "If you did accept the view that the present weakness of the American Negro, his uncontrollable emotions, his lack of energy, are racially inherent, your work would still be noble one". He then went on, however, to argue against this view. To the claim that European and Asian civilizations are, at the time, more advanced than African societies, Boas objected that against the total history of humankind, the past two thousand years is but a brief span. Moreover, although the technological advances of our early ancestors (such as taming fire and inventing stone tools) might seem insignificant when compared to the invention of the steam engine or control over electricity, we should consider that they might actually be even greater accomplishments. Boas then went on to catalogue advances in Africa, such as smelting iron, cultivating millet, and domesticating chickens and cattle, that occurred in Africa well before they spread to Europe and Asia (evidence now suggests that chickens were first domesticated in Asia; the original domestication of cattle is under debate). He then described the activities of African kings, diplomats, merchants, and artists as evidence of cultural achievement. From this, he concluded, any social inferiority of Negroes in the United States cannot be explained by their African origins: If therefore, it is claimed that your race is doomed to economic inferiority, you may confidently look to the home of your ancestors and say, that you have set out to recover for the colored people the strength that was their own before they set foot on the shores of this continent. You may say that you go to work with bright hopes and that you will not be discouraged by the slowness of your progress; for you have to recover not only what has been lost in transplanting the Negro race from its native soil to this continent, but you must reach higher levels than your ancestors ever had attained. Boas proceeds to discuss the arguments for the inferiority of the "Negro race", and calls attention to the fact that they were brought to the Americas through force. For Boas, this is just one example of the many times conquest or colonialism has brought different peoples into an unequal relation, and he mentions "the conquest of England by the Normans, the Teutonic invasion of Italy, [and] the Manchu conquest of China" as resulting in similar conditions. But the best example, for Boas, of this phenomenon is that of the Jews in Europe: Even now there lingers in the consciousness of the old, sharper divisions which the ages had not been able to efface, and which is strong enough to find—not only here and there—expression as antipathy to the Jewish type. In France, that let down the barriers more than a hundred years ago, the feeling of antipathy is still strong enough to sustain an anti-Jewish political party. Boas's closing advice is that African Americans should not look to whites for approval or encouragement because people in power usually take a very long time to learn to sympathize with people out of power. "Remember that in every single case in history the process of adaptation has been one of exceeding slowness. Do not look for the impossible, but do not let your path deviate from the quiet and steadfast insistence on full opportunities for your powers." Despite Boas's caveat about the intractability of white prejudice, he also considered it the scientist's responsibility to argue against white myths of racial purity and racial superiority and to use the evidence of his research to fight racism. At the time, Boas had no idea that speaking at Atlanta University would put him at odds with a different prominent Black figure, Booker T. Washington. Du Bois and Washington had different views on the means of uplifting Black Americans. By supporting Du Bois, Boas lost Washington's support and any chance of funding from his college, Carnegie Mellon University. Boas was also critical of one nation imposing its power over others. In 1916, Boas wrote a letter to The New York Times which was published under the headline, "Why German-Americans Blame America". Although Boas did begin the letter by protesting bitter attacks against German Americans at the time of the war in Europe, most of his letter was a critique of American nationalism. "In my youth, I had been taught in school and at home not only to love the good of my own country, but also to seek to understand and to respect the individualities of other nations. For this reason, one-sided nationalism, that is so often found nowadays, is to be unendurable." He writes of his love for American ideals of freedom, and of his growing discomfort with American beliefs about its own superiority over others. I have always been of the opinion that we have no right to impose our ideals upon other nations, no matter how strange it may seem to us that they enjoy the kind of life they lead, how slow they may be in utilizing the resources of their countries, or how much opposed their ideas may be to ours ... Our intolerant attitude is most pronounced in regard to what we like to call "our free institutions." Modern democracy was no doubt the most wholesome and needed reaction against the abuses of absolutism and of a selfish, often corrupt, bureaucracy. That the wishes and thoughts of the people should find expression, and that the form of government should conform to these wishes is an axiom that has pervaded the whole Western world, and that is even taking root in the Far East. It is a quite different question, however, in how far the particular machinery of democratic government is identical with democratic institutions ... To claim as we often do, that our solution is the only democratic and the ideal one is a one-sided expression of Americanism. I see no reason why we should not allow the Germans, Austrians, and Russians, or whoever else it may be, to solve their problems in their own ways, instead of demanding that they bestow upon themselves the benefactions of our regime. Although Boas felt that scientists have a responsibility to speak out on social and political problems, he was appalled that they might involve themselves in disingenuous and deceitful ways. Thus, in 1919, when he discovered that four anthropologists, in the course of their research in other countries, were serving as spies for the American government, he wrote an angry letter to The Nation. It is perhaps in this letter that he most clearly expresses his understanding of his commitment to science: A soldier whose business is murder as a fine art, a diplomat whose calling is based on deception and secretiveness, a politician whose very life consists in compromises with his conscience, a businessman whose aim is personal profit within the limits allowed by a lenient law—such may be excused if they set patriotic deception above common everyday decency and perform services as spies. They merely accept the code of morality to which modern society still conforms. Not so the scientist. The very essence of his life is the service of truth. We all know scientists who in private life do not come up to the standard of truthfulness, but who, nevertheless, would not consciously falsify the results of their researches. It is bad enough if we have to put up with these because they reveal a lack of strength of character that is liable to distort the results of their work. A person, however, who uses science as a cover for political spying, who demeans himself to pose before a foreign government as an investigator and asks for assistance in his alleged researches in order to carry on, under this cloak, his political machinations, prostitutes science in an unpardonable way and forfeits the right to be classed as a scientist. Although Boas did not name the spies in question, he was referring to a group led by Sylvanus G. Morley, who was affiliated with Harvard University's Peabody Museum. While conducting research in Mexico, Morley and his colleagues looked for evidence of German submarine bases, and collected intelligence on Mexican political figures and German immigrants in Mexico. Boas's stance against spying took place in the context of his struggle to establish a new model for academic anthropology at Columbia University. Previously, American anthropology was based at the Smithsonian Institution in Washington and the Peabody Museum at Harvard, and these anthropologists competed with Boas's students for control over the American Anthropological Association (and its flagship publication American Anthropologist). When the National Academy of Sciences established the National Research Council in 1916 as a means by which scientists could assist the United States government to prepare for entry into the war in Europe, competition between the two groups intensified. Boas's rival, W. H. Holmes (who had gotten the job of Director at the Field Museum for which Boas had been passed over 26 years earlier), was appointed to head the NRC; Morley was a protégé of Holmes. When Boas's letter was published, Holmes wrote to a friend complaining about "the Prussian control of anthropology in this country" and the need to end Boas's "Hun regime". Opinion was influenced by anti-German and probably also by anti-Jewish sentiment. The Anthropological Society of Washington passed a resolution condemning Boas's letter for unjustly criticizing President Wilson; attacking the principles of American democracy; and endangering anthropologists abroad, who would now be suspected of being spies (a charge that was especially insulting, given that his concerns about this very issue were what had prompted Boas to write his letter in the first place). This resolution was passed on to the American Anthropological Association (AAA) and the National Research Council. Members of the American Anthropological Association (among whom Boas was a founding member in 1902), meeting at the Peabody Museum of Archaeology and Ethnology at Harvard (with which Morley, Lothrop, and Spinden were affiliated), voted by 20 to 10 to censure Boas. As a result, Boas resigned as the AAA's representative to the NRC, although he remained an active member of the AAA.
in Mainz, but the political disarray in the Republic of Mainz caused his parents' move to Aschaffenburg, the second seat of the Archbishop of Mainz. There he received a liberal education at the Lyceum and Karl Joseph Hieronymus Windischmann drew his attention to the languages and literature of the East. (Windischmann, along with Georg Friedrich Creuzer, Joseph Görres, and the brothers Schlegel, expressed great enthusiasm for Indian wisdom and philosophy.) Moreover, Karl Wilhelm Friedrich von Schlegel's book, Über die Sprache und Weisheit der Indier (On the Speech and Wisdom of the Indians, Heidelberg, 1808), had just begun to exert a powerful influence on the minds of German philosophers and historians, and stimulated Bopp's interest in the sacred language of the Hindus. Career In 1812, he went to Paris at the expense of the Bavarian government, with a view to devoting himself vigorously to the study of Sanskrit. There he enjoyed the society of such eminent men as Antoine-Léonard de Chézy (his primary instructor), Silvestre de Sacy, Louis Mathieu Langlès, and, above all Alexander Hamilton (1762–1824), cousin of the American statesman of the same name , who had acquired an acquaintance with Sanskrit when in India and had brought out, along with Langlès, a descriptive catalogue of the Sanskrit manuscripts of the Imperial Library. In the library, Bopp had access not only to the rich collection of Sanskrit manuscripts (mostly brought from India by Jean François Pons in the early 18th century), but also to the Sanskrit books that had been issued from the Calcutta and Serampore presses. He spent five years of laborious study, almost living in the libraries of Paris and unmoved by the turmoils that agitated the world around him, including Napoleon's escape, the Waterloo campaign and the Restoration. The first paper from his years of study in Paris appeared in Frankfurt am Main in 1816, under the title of Über das Konjugationssystem der Sanskritsprache in Vergleichung mit jenem der griechischen, lateinischen, persischen und germanischen Sprache (On the Conjugation System of Sanskrit in comparison with that of Greek, Latin, Persian and Germanic), to which Windischmann
paper from his years of study in Paris appeared in Frankfurt am Main in 1816, under the title of Über das Konjugationssystem der Sanskritsprache in Vergleichung mit jenem der griechischen, lateinischen, persischen und germanischen Sprache (On the Conjugation System of Sanskrit in comparison with that of Greek, Latin, Persian and Germanic), to which Windischmann contributed a preface. In this first book, Bopp entered at once the path on which he would focus the philological researches of his whole subsequent life. His task was not to point out the similarity of Sanskrit with Persian, Greek, Latin or German, for previous scholars had long established that, but he aimed to trace the postulated common origin of the languages' grammatical forms, of their inflections from composition. This was something no predecessor had attempted. By a historical analysis of those forms, as applied to the verb, he furnished the first trustworthy materials for a history of the languages compared. After a brief sojourn in Germany, Bopp travelled to London where he made the acquaintance of Sir Charles Wilkins and Henry Thomas Colebrooke. He also became friends with Wilhelm von Humboldt, the Prussian ambassador at the Court of St. James's, to whom he taught Sanskrit. He brought out, in the Annals of Oriental Literature (London, 1820), an essay entitled "Analytical Comparison of the Sanskrit, Greek, Latin and Teutonic Languages" in which he extended to all parts of grammar what he had done in his first book for the verb alone. He had previously published a critical edition, with a Latin translation and notes, of the story of Nala and Damayanti (London, 1819), the most beautiful episode of the Mahabharata. Other episodes of the Mahabharata, Indralokâgama, and three others (Berlin, 1824); Diluvium, and three others (Berlin, 1829); a new edition of Nala (Berlin, 1832) followed in due course, all of which, with August Wilhelm von Schlegel's edition of the Bhagavad Gita (1823), proved excellent aids in initiating the early student into the reading of Sanskrit texts. On the publication, in Calcutta, of the whole Mahabharata, Bopp discontinued editing Sanskrit texts and confined himself thenceforth exclusively to grammatical investigations. After a short residence at Göttingen, Bopp gained, on the recommendation of Humboldt, appointment to the chair of Sanskrit and comparative grammar at the University of Berlin in 1821, which he occupied for the rest of his life. He also became a member of the Royal Prussian Academy the following year. In 1827, he published his Ausführliches Lehrgebäude der Sanskritsprache (Detailed System of the Sanskrit Language), on which he had worked since 1821. Bopp started work on a new edition in Latin, for the following year, completed in 1832; a shorter grammar appeared in 1834. At the same time he compiled a Sanskrit and Latin Glossary (1830), in which, more especially in the second and third editions (1847 and 1868–71), he also took account of the cognate languages. His chief activity, however, centered on the elaboration of his Comparative Grammar, which appeared in six parts at considerable intervals (Berlin, 1833, 1835, 1842, 1847, 1849, 1852), under the title Vergleichende Grammatik des Sanskrit, Zend, Griechischen, Lateinischen, Litthauischen, Altslawischen, Gotischen und Deutschen (Comparative Grammar of Sanskrit, Zend [Avestan], Greek, Latin, Lithuanian, Old Slavonic, Gothic and German). How carefully Bopp matured this work emerges from the series of monographs printed in the Transactions of the Berlin Academy
Lanka, New Caledonia and Mauritius. It is introduced to Egypt, French Polynesia, Czech Republic and England particularly with commodities. Description Body length is about 2.5 to 2.25 mm. First abdominal sternite is without a black
China, Indonesia (Java, Madura, Malaysia), Sri Lanka, New Caledonia and Mauritius. It is introduced to Egypt, French Polynesia, Czech Republic and England particularly with commodities. Description Body length is about 2.5 to 2.25 mm. First abdominal
Stanley Kubrick, and a booklet about the film's production among other extras. Critical reception Review aggregator website Rotten Tomatoes retrospectively collected reviews to give the film a score of 92% based on reviews from 83 critics and an average rating of 8.30/10. The summary states; "Intense, tightly constructed, and darkly comic at times, Stanley Kubrick's Full Metal Jacket may not boast the most original of themes, but it is exceedingly effective at communicating them". Another aggregator, Metacritic, gave it a score of 76 out of 100 based on 19 reviews, which indicates a "generally favorable" response. Reviewers generally reacted favorably to the cast—Ermey in particular— and the film's first act about recruit training. Several reviews, however, were critical of the latter part of the film, which is set in Vietnam, and what was considered a "muddled" moral message in the finale. Richard Corliss of Time called the film a "technical knockout", praising "the dialogue's wild, desperate wit; the daring in choosing a desultory skirmish to make a point about war's pointlessness", and "the fine, large performances of almost every actor", saying Ermey and D'Onofrio would receive Oscar nominations. Corliss appreciated "the Olympian elegance and precision of Kubrick's filmmaking". Empires Ian Nathan awarded the film three stars out of five, saying it is "inconsistent" and describing it as "both powerful and frustratingly unengaged". Nathan said after the opening act, which focuses on the recruit training, the film becomes "bereft of purpose"; nevertheless, he summarized his review by calling it a "hardy Kubrickian effort that warms on you with repeated viewings" and praised Ermey's "staggering performance". Vincent Canby of The New York Times called the film "harrowing, beautiful and characteristically eccentric". Canby echoed praise for Ermey, calling him "the film's stunning surprise ... he's so good—so obsessed—that you might think he wrote his own lines". Canby said D'Onofrio's performance should be admired and described Modine as "one of the best, most adaptable young film actors of his generation", and concluded Full Metal Jacket is "a film of immense and very rare imagination". Jim Hall, writing for Film4 in 2010, awarded the film five stars out of five and added to the praise for Ermey, saying his "performance as the foul-mouthed Hartman is justly celebrated and it's difficult to imagine the film working anything like as effectively without him". The review preferred the opening training segment to the later Vietnam sequence, calling it "far more striking than the second and longer section". Hall commented the film ends abruptly but felt "it demonstrates just how clear and precise the director's vision could be when he resisted a fatal tendency for indulgence". Hall concluded; "Full Metal Jacket ranks with Dr. Strangelove as one of Kubrick's very best". Jonathan Rosenbaum of the Chicago Reader called it "Elliptical, full of subtle inner rhymes ... and profoundly moving, this is the most tightly crafted Kubrick film since Dr. Strangelove, as well as the most horrific". Variety called the film an "intense, schematic, superbly made" drama that is "loaded with vivid, outrageously vulgar military vernacular that contributes heavily to the film's power" but said it never develops "a particularly strong narrative". The cast performances were all labeled "exceptional"; Modine was singled out as "embodying both what it takes to survive in the war and a certain omniscience". Gilbert Adair, writing for Full Metal Jacket, commented; "Kubrick's approach to language has always been of a reductive and uncompromisingly deterministic nature. He appears to view it as the exclusive product of environmental conditioning, only very marginally influenced by concepts of subjectivity and interiority, by all whims, shades and modulations of personal expression". Chicago Sun-Times critic Roger Ebert called Full Metal Jacket "strangely shapeless" and awarding it two and a half stars out of four. Ebert called it "one of the best-looking war movies ever made on sets and stage" but said this was not enough to compete with the "awesome reality of Platoon, Apocalypse Now and The Deer Hunter". Ebert criticized the film's Vietnam-set second act, saying the "movie disintegrates into a series of self-contained set pieces, none of them quite satisfying" and concluded the film's message is "too little and too late", having been done by other Vietnam War films. Ebert praised Ermey and D'Onofrio, saying "these are the two best performances in the movie, which never recovers after they leave the scene". Ebert's review angered Gene Siskel on their television show At The Movies; he criticized Ebert for liking Benji the Hunted more than Full Metal Jacket. Time Out London disliked the film, saying "Kubrick's direction is as steely cold and manipulative as the régime it depicts", and that the characters are underdeveloped, adding "we never really get to know, let alone care about, the hapless recruits on view". British television channel Channel 4 voted Full Metal Jacket fifth on its list of the greatest war films ever made. In 2008, Empire placed the film at number 457 on its list of "The 500 Greatest Movies of All Time". In 2010, The Guardian ranked it 19th on its list of the "25 best action and war films of all time". The film is ranked 95 on the American Film Institute's 100 Years... 100 Thrills list, which was published in 2001. Accolades Between 1987 and 1989, Full Metal Jacket was nominated for 11 awards, including an Academy Award for Best Adapted Screenplay, two BAFTA Awards for Best Sound and Best Special Effects, and a Golden Globe for Best Supporting Actor for Ermey. It won five awards, including three from overseas; Best Foreign Language Film from the Japanese Academy, Best Producer from the Academy of Italian Cinema, Director of the Year at the London Critics Circle Film Awards, and Best Director and Best Supporting Actor at the Boston Society of Film Critics Awards for Kubrick and Ermey respectively. Of the five awards it won, four were awarded to Kubrick and the other was given to Ermey. Differences between novel and screenplay Film scholar Greg Jenkins has analyzed the adaptation of the novel as a screenplay. The novel is in three parts and the film greatly expands the relatively brief first section about the boot camp on Parris Island and essentially discards Part III. This gives the film a twofold structure, telling two largely independent stories that are connected by the same characters. Jenkins said this structure is a development of concepts Kubrick originally discussed in the 1960s, when he talked about wanting to explode the usual conventions of narrative structure. Sergeant Hartman, who is renamed from the book's Gerheim, has an expanded role in the film. Private Pyle's incompetence is presented as weighing negatively on the rest of the platoon; unlike those in the novel, he is the only under-performing recruit. The film omits Hartman's disclosure he thinks Pyle might be mentally unstable—a "Section 8"—to the other troops; instead, Joker questions Pyle's mental state. In contrast, Hartman praises Pyle, saying he is "born again hard". Jenkins says that portraying Hartman as having a warmer social relationship with the troops would have upset the balance of the film, which depends on the spectacle of ordinary soldiers coming to grips with Hartman as a force of nature who embodies a killer culture. Some scenes in the book were removed from the screenplay or conflated with others. For example, Cowboy's introduction
Works in Newham, and in the Isle of Dogs. Bassingbourn Barracks, a former Royal Air Force station and then British Army base, was used as the Parris Island Marine boot camp. A British Army rifle range near Barton, Cambridge, was used for the scene in which Hartman congratulates Private Pyle for his shooting skills. Kubrick worked from still photographs of Huế taken in 1968; he found an area owned by British Gas that closely resembled it and was scheduled to be demolished. The disused Beckton Gas Works, a few miles from central London, was filmed to depict Huế after attacks. Kubrick had buildings blown up, and the film's art director used a wrecking ball to knock specific holes in some buildings for two months. Kubrick had a plastic replica jungle flown in from California but once he saw it dismissed the idea, saying; "I don't like it. Get rid of it." The open country scenes were filmed at marshland in Cliffe-at-Hoo and along the River Thames; locations were supplemented with 200 imported Spanish palm trees and 100,000 plastic tropical plants from Hong Kong. Kubrick acquired four M41 tanks from a Belgian army colonel who was an admirer. Westland Wessex helicopters, which have a much longer and less-rounded nose than that of the Vietnam era H-34, were painted Marine green to represent Marine Corps Sikorsky H-34 Choctaw helicopters. Kubrick obtained a selection of rifles, M79 grenade launchers, and M60 machine guns from a licensed weapons dealer. Modine described the filming as difficult; Beckton Gas Works was a toxic environment for the film crew, being contaminated with asbestos and hundreds of other chemicals. During the boot camp sequence of the film, Modine and the other recruits underwent Marine Corps training, during which Ermey yelled at them for 10 hours a day while filming the Parris Island scenes. To ensure the actors' reactions to Ermey's lines were as authentic and fresh as possible, Ermey and the recruits did not rehearse together. For film continuity, each recruit had his head shaved once a week. While filming, Ermey had a car accident and broke several ribs, making him unavailable for four and a half months. During Cowboy's death scene, a building that resembles the alien monolith in Kubrick's 2001: A Space Odyssey (1968) is visible, which Kubrick described as an "extraordinary accident". During filming, Hasford contemplated taking legal action over the writing credits. Originally, the filmmakers intended Hasford to receive an "additional dialogue" credit but he fought for and eventually received full credit. Hasford and two friends visited the set dressed as extras but was mistaken by a crew member for Herr. Hasford identified himself as the writer upon whose work the film is based. Kubrick's daughter Vivian, who appears uncredited as a news camera operator, shadowed the filming of Full Metal Jacket. She filmed 18 hours of behind-the-scenes footage for a potential "making-of" documentary that went unmade. Sections of her work can be seen in the documentary Stanley Kubrick's Boxes (2008). Themes Michael Pursell's essay "Full Metal Jacket: The Unravelling of Patriarchy" (1988) was an early, in-depth consideration of the film's two-part structure and its criticism of masculinity, saying the film shows "war and pornography as facets of the same system". Most reviews have focused on military brainwashing themes in the boot camp section of the film while seeing the content in the film's latter half as more confusing and disjointed. Rita Kempley of The Washington Post wrote, "it's as if they borrowed bits of every war movie to make this eclectic finale". Roger Ebert saw in the film an attempt to tell a story of individual characters and the war's effects on them. According to Ebert, the result is a shapeless film that feels "more like a book of short stories than a novel". Julian Rice, in his book Kubrick's Hope (2008), saw the second part of the film as a continuation of Joker's psychic journey in his attempt to understand human evil. Tony Lucia, in his 1987 review of Full Metal Jacket for the Reading Eagle, examined the themes of Kubrick's career, suggesting "the unifying element may be the ordinary man dwarfed by situations too vast and imposing to handle". Lucia refers to the "military mentality" in this film and also said the theme covers "a man testing himself against his own limitations", and concluded: "Full Metal Jacket is the latest chapter in an ongoing movie which is not merely a comment on our time or a time past, but on something that reaches beyond". British critic Gilbert Adair wrote, "Kubrick's approach to language has always been reductive and uncompromisingly deterministic in nature. He appears to view it as the exclusive product of environmental conditioning, only very marginally influenced by concepts of subjectivity and interiority, by all the whims, shades and modulations of personal expression". Michael Herr wrote of his work on the screenplay, "The substance was single-minded, the old and always serious problem of how you put into a film or a book the living, behaving presence of what Jung called The Shadow, the most accessible of archetypes, and the easiest to experience ... War is the ultimate field of Shadow-activity, where all of its other activities lead you. As they expressed it in Vietnam, 'Yea, though I walk through the Valley of the Shadow of Death, I will fear no Evil, for I the Evil'." Music Kubrick's daughter Vivian Kubrick, under the alias "Abigail Mead", wrote the film's score. According to an interview in the January 1988 issue of Keyboard, the film was scored mostly with a Series III edition Fairlight CMI synthesizer and a Synclavier. For the period music, Kubrick went through Billboard list of Top 100 Hits for each year from 1962 to 1968 and tried many songs but found "sometimes the dynamic range of the music was too great, and we couldn't work in dialogue". Johnnie Wright – "Hello Vietnam" The Dixie Cups – "Chapel of Love" Sam the Sham & The Pharaohs – "Wooly Bully" Chris Kenner – "I Like It Like That" Nancy Sinatra – "These Boots Are Made for Walkin'" The Trashmen – "Surfin' Bird" Goldman Band – "Marines' Hymn" The Rolling Stones – "Paint It Black" A single titled "Full Metal Jacket (I Wanna Be Your Drill Instructor)", which is credited to Mead and Nigel Goulding, was released to promote the film. It incorporates Ermey's drill cadences from the film. The single reached number two in the UK singles chart. Release Box office Full Metal Jacket received a limited release on June 26, 1987, in 215 theaters. During its opening weekend, it accrued $2.2 million, an average of $10,313 per theater, ranking it the number 10 film for the weekend June 26–28. It took a further $2 million for a total of $5.7 million before being widely released in 881 theaters on July 10, 1987. The weekend of July 10–12 saw the film gross $6.1 million, an average of $6,901 per theater, and rank as the second-highest-grossing film. Over the next four weeks the film opened in a further 194 theaters to its widest release of 1,075 theaters; it closed two weeks later with a total gross of $46.4 million, making it the twenty-third-highest-grossing film of 1987. , the film had grossed $120 million worldwide. Home media Full Metal Jacket was released on Blu-ray on October 23, 2007. Warner Home Video released a 25th anniversary edition on Blu-ray on August 7, 2012. Warner released the film on 4K Ultra HD in the UK on September 21, 2020, and in the U.S. on the following day. Other regions were slated for an October release. The 4K UHD release uses a new HDR remastered native 2160p that was transferred from the original 35mm negative, which was supervised by Kubrick's personal assistant Leon Vitali. It contains the remixed audio and, for the first time since the original DVD release, the theatrical mono mix. The release was a critical success; publications praised its image and audio quality, calling the former exceptionally good and faithful to the original theatrical release, and Kubrick's vision while noting the lack of new extras and bonus content. A collector's edition box set of this 4K UHD version was released with different cover art, a replica theatrical poster of the film, a letter from director Stanley Kubrick, and a booklet about the film's production among other extras. Critical reception Review aggregator website Rotten Tomatoes retrospectively collected reviews to give the film a score of 92% based on reviews from 83 critics and an average rating of 8.30/10. The summary states; "Intense, tightly constructed, and darkly comic at times, Stanley Kubrick's Full Metal Jacket may not boast the most original of themes, but it is exceedingly effective at communicating them". Another aggregator, Metacritic, gave it a score of 76 out of 100 based on 19 reviews, which indicates a "generally favorable" response. Reviewers generally reacted favorably to the cast—Ermey in particular— and the film's first act about recruit training. Several reviews, however, were critical of the latter part of the film, which is set in Vietnam, and what was considered a "muddled" moral message in the finale. Richard Corliss of Time called the film a "technical knockout", praising "the dialogue's wild, desperate wit; the daring in choosing a desultory skirmish to make a point about war's pointlessness", and "the fine, large performances of almost every actor", saying Ermey and D'Onofrio would receive Oscar nominations. Corliss appreciated "the Olympian elegance and precision of Kubrick's filmmaking". Empires Ian Nathan awarded the film three stars out of five, saying it is "inconsistent" and describing it as "both powerful and frustratingly unengaged". Nathan said after the opening act, which focuses on the recruit training, the film becomes "bereft of purpose"; nevertheless, he summarized his review by calling it a "hardy Kubrickian effort that warms on you with repeated viewings" and praised Ermey's "staggering performance". Vincent Canby of The New York Times called the film "harrowing, beautiful and characteristically eccentric". Canby echoed praise for Ermey, calling him "the film's stunning surprise ... he's so good—so obsessed—that you might think he wrote his own lines". Canby said D'Onofrio's performance should be admired and described Modine as "one of the best, most adaptable young film actors of his generation", and concluded Full Metal Jacket is "a film of immense and very rare imagination". Jim Hall, writing for Film4 in 2010, awarded the film five stars out of five and added to the praise for Ermey, saying his "performance as the foul-mouthed Hartman is justly celebrated and it's difficult to imagine the film working anything like as effectively without him". The review preferred the opening training segment to the later Vietnam sequence, calling it "far more striking than the second and longer section". Hall commented the film ends abruptly but felt "it demonstrates just how clear and precise the director's vision could be when he resisted a fatal tendency for indulgence". Hall concluded; "Full Metal Jacket ranks with Dr. Strangelove as one of Kubrick's very best". Jonathan Rosenbaum of the Chicago Reader called it "Elliptical, full of subtle inner rhymes ... and profoundly moving, this is the most tightly crafted Kubrick film since Dr. Strangelove, as well as the most horrific". Variety called the film an "intense, schematic, superbly made" drama that is "loaded with vivid, outrageously vulgar military vernacular that contributes heavily to the film's power" but said it never develops "a particularly strong narrative". The cast performances were all labeled "exceptional"; Modine was singled out as "embodying both what it
congruity, and adoration which includes offers, approval and tact, knowledge and demonstration of poise, self-assurance, smart and stylish, a commanding attitude. Flirting behavior varies across cultures due to different modes of social etiquette, such as how closely people should stand (proxemics), how long to hold eye contact, how much touching is appropriate and so forth. Nonetheless, some behaviors may be more universal. For example, ethologist Irenäus Eibl-Eibesfeldt found that in places as different as Africa and North America, women exhibit similar flirting behavior, such as a prolonged stare followed by a nonchalant break of gaze along with a little smile. Etymology The origin of the word flirt is obscure. The Oxford English Dictionary (first edition) associates it with such onomatopoeic words as flit and flick, emphasizing a lack of seriousness; on the other hand, it has been attributed to the old French conter fleurette, which means "to (try to) seduce" by the dropping of flower petals, that is, "to speak sweet nothings". While old-fashioned, this expression is still used in French, often mockingly, but the English gallicism to flirt has made its way and has now become an anglicism. The word fleurette was used in the 16th century in some sonnets, and some other texts. The French word fleurette (small flower), and the language of old south France word flouretas (from the Latin flora (for flower)), are related to some little says where flowers are both at the same time a pretext and the comparison terms. In southern France, some usage were yet used in 1484, In French, some other words more or less related are derived from the word fleur: for instance effleurer (English: lightly touch) from 13th century esflourée; déflorer (English: deflower) from 13th century desflorer or (fleuret (English Foil) 18th century. The association of flowers, spring, youth, and women is not modern and were yet considered in ancient culture, such as the Chloris in ancient Greece, or Flora (deity) in the ancient Roman Empire, including Floralia festival, and in other older poems, such as the Song of Songs. History During World War II, anthropologist Margaret Mead was working in Britain for the British Ministry of Information and later for the U.S. Office of War Information, delivering speeches and writing articles to help the American soldiers better understand the British civilians, and vice versa. She observed in the flirtations between the American soldiers and British women a pattern of misunderstandings regarding who is supposed to take which initiative. She wrote of the Americans, "The boy learns to make advances and rely upon the girl to repulse them whenever they are inappropriate to the state of feeling between the pair", as contrasted to the British, where "the girl is reared to depend upon a slight barrier of chilliness... which the boys learn to respect, and for the rest to rely upon the men to approach or advance, as warranted by the situation." This resulted, for example, in British women interpreting an American soldier's gregariousness as something more intimate or serious than he had intended. Communications theorist Paul Watzlawick used this situation, where "both American soldiers and British girls accused one another of being sexually brash", as an example of differences in "punctuation" in interpersonal communications. He wrote that courtship in both cultures used approximately 30 steps from "first eye contact to the ultimate consummation", but that the sequence of the steps was different. For example, kissing might be an early step in the American pattern but a relatively intimate act in the English pattern. Japanese courtesans had another form of flirting, emphasizing non-verbal relationships by hiding the lips and showing the eyes, as depicted in much Shunga art, the most popular print media at the time, until the late 19th century. European hand fans The fan was extensively used as a means of communication and therefore a way of flirting from the 16th century onwards in some European societies, especially England and Spain. A whole sign language was developed with the use of the fan, and even etiquette books and magazines were published. Charles Francis Badini created the Original Fanology or Ladies' Conversation Fan which was published by William Cock in London in 1797. The use of the fan was not limited to women, as men also carried fans and learned how to convey messages with them. For instance, placing the fan near the heart meant "I love you", while opening a fan wide meant "Wait for me". In Spain, where the use of fans (called "abanicos") is still very popular today, ladies used them to communicate with suitors or prospective suitors without attracting the notice of their families or chaperons. This use was highly popular during the 19th and early 20th centuries. Purpose People flirt for a variety of reasons. According to social anthropologist Kate Fox, there are two main types of flirting: flirting just for fun and flirting with further intent. In a 2014 review, Henningsen made a further distinction and identified six main motivations for flirting: sex, relational development, exploration, fun, self-esteem and instrumental. Henningsen found that often, many flirting interactions involve more than one of these motives. There also appears to be gender differences in flirting motivations. Courtship Many people flirt as a courtship initiation method, with the aim of engaging in a sexual relationship with another person. In this sense, flirting plays a role in the mate-selection process. The person flirting will send out signals of sexual availability to another, and expects to see the interest returned in order to continue flirting. Flirting can involve non-verbal signs, such as an exchange of glances, hand-touching, and hair-touching; or verbal signs, such as chatting, giving flattering comments, and exchanging telephone numbers in order to initiate further contact. Many studies have confirmed that sex is a driving motivation for flirting behaviours. Additionally, Messman and colleagues' study provided support for this hypothesis; it demonstrated that, the more one was physically attracted to a person, the higher the chances one would flirt with them. Flirting with the goal of signalling interest appears as a puzzling phenomenon when considering that flirting is often performed very subtly. In fact, evidence shows that people are often mistaken in how they interpret flirting behaviours. Thus, if a main purpose of flirting is to signal interest to the other person, why isn't this signalling done more clearly and explicitly?A possible explanation for the ambiguous nature of human flirting lies in the costs associated with courtship signals. Indeed, according to Gersick and colleagues, signalling interest can be costly as it can lead to the disturbance of the nature of a relationship. For instance, signalling sexual interest to a friend bears the risk of introducing uncertainty into the friendship, especially if the romantic advance is rejected by the recipient. For this reason, individuals prefer engaging in a flirting interaction that is more subtle to limit the risks associated with the expression of sexual interest. More generally, human relationships are governed by social norms and whenever these are broken, one can suffer significant costs that can range from social, economic and even legal nature. As an illustration, a manager flirting with his subordinate can lead to strong costs such as being accused of sexual harassment,
the friendship, especially if the romantic advance is rejected by the recipient. For this reason, individuals prefer engaging in a flirting interaction that is more subtle to limit the risks associated with the expression of sexual interest. More generally, human relationships are governed by social norms and whenever these are broken, one can suffer significant costs that can range from social, economic and even legal nature. As an illustration, a manager flirting with his subordinate can lead to strong costs such as being accused of sexual harassment, which can potentially lead to job loss. Additionally, third parties can impose costs on someone expressing sexual interest. Expressing sexual interest to somebody else's romantic partner is a highly punishable act. This often leads to jealousy from the person's partner which can trigger anger and (possible) physical punishment, especially in men. Third parties can also impose costs through the act of eavesdropping. These can lead to damage to one's reputation leading to possible social, economic and legal costs. A last point to consider is that the costs associated with interest signalling are magnified in the case of humans, when compared to the animal world. Indeed, the existence of language means that information can circulate much faster. For instance, in the case of eavesdropping, the information overhead by the eavesdropper can be spread to very large social networks, thereby magnifying the social costs. Other motivations Another reason people engage in flirting is to consolidate or maintain a romantic relationship with their partner. They will engage in flirting behaviours to promote the flourishing of their relationship with their partner. People will also flirt with the goal of 'exploring'. In this sense, the aim is not necessarily to express sexual or romantic interest but simply to assess whether the other might be interested in them before making any decision about what they would want from that individual. Henningsen and Fox also demonstrated that flirting can sometimes be employed just for fun. For instance, studies have shown that flirting in the workplace was used mostly for fun purposes. Another motive that drives flirting is developing one's own self esteem. People often feel highly valued when someone flirts with them. Therefore, often people flirt to encourage reciprocation and thereby increase their self esteem. As a last point, people might flirt for instrumental purposes. For instance, they will flirt to get something out of the other person such as a drink in a nightclub or a promotion at work. Gender differences in motivations Certain types of flirting seem to be more common amongst males compared to females and vice versa. To start with, Henningsen and colleagues' study demonstrated that flirting with sexual intent was found to be more prominent amongst men. On the other hand, flirting for relationship development purposes was more often employed by women. These findings are not surprising when the parental investment theory is taken into account. First, it states that females are more choosy and men more competitive, therefore predicting that flirting as courtship initiation will be more commonly used amongst men. The theory also predicts that females invest more in their offspring, which makes them more prone to invest in their relationship as this can provide resources that can contribute to their offspring's survival. On the other hand, men have no guarantee that their mates' offspring is theirs, so have fewer incentives to seek long-term relationships; thereby explaining why men care less about flirting for relationship development. Additionally, Henningsen found that flirting for fun was more common in females than males. A possible explanation for this could lie in the fact that women engage in what he calls "practice flirting". As women are more selective and want to attract the best partner to take care of their offspring, they might flirt for fun to practice and evaluate what flirting behaviours work the best. Examples Flirting may consist of stylized gestures, language, body language, postures, and physiologic signs which act as cues to another person. Among these, at least in Western society, are: Blowing a kiss Casual touching; such as gently stroking, touching each other's arms, chest and neck during flirting/heavy, intimate make-out sessions in preparation for sexual activity Conversation (e.g. banter, small talk, pickup lines) Coyness, marked by cute, coquettish shyness or modesty, coquet or playful aggrandizement of a partner's importance Eye contact, batting eyelashes, or staring Eyebrow raising Flattery (e.g. regarding beauty, sexual attractiveness) Footsie, a form of flirtation in which one uses their feet to play with another's Hugging Imitating or mirroring another's behavior (e.g. taking a drink when the other person takes a drink, changing posture as the other does, foreshadowing or mimicking someone's reactions to successful attraction etc.) Laughing, giggling, chuckling encouragingly at any slight hint of intimacy in the other's behavior Maintaining close proximity, such as during casual talking Nicknames and other terms of endearment to describe a partner's personality, beauty or sexiness Chatting online, texting, and using other one-on-one and direct messaging services, while hinting affection Protean signals or indicators of interest, such as touching one's hair, side-ways glance, and pointing one's chest towards partner's chest Partner dancing Writing love letters and notes, poems, or presenting small gifts Singing specially selected love songs as a declaration of love and devotion in presence of one's partner Smiling or grinning at partner and/or holding them close Staging of "chance" encounters and romantic rendezvous Sexting Teasing Tickling Winking The effectiveness of many of these interactions has been subjected to detailed analysis by behavioral psychologists, and advice on their use is available from dating coaches. Cultural variations Flirting varies a great deal from culture to culture. For example, for many Western cultures one very common flirting strategy includes eye contact. However, eye contact can have a very different meaning in some Asian countries, where women might get in trouble if they return a glance to men who stare at them. Furthermore, Chinese and Japanese
known for the films Planet of the Apes (1968), Nicholas and Alexandra (1971), Papillon (1973), and The Boys from Brazil (1978). He served as president of the Directors Guild of America between 1987 and 1989. Early life Schaffner was born in Tokyo, Japan, the son of American missionaries Sarah Horting (née Swords) and Paul Franklin Schaffner, and was raised in Japan. The Schaffners returned to the United States and settled in Lancaster, Pennsylvania when Franklin Schaffner was 5 years old. Franklin Schaffner attended J.P. McCaskey High School, where he appeared as Mr. Darcy in the school's production of Pride and Prejudice. In 1938, he graduated as valedictorian of McCaskey High School's first graduating class. Schaffner graduated from Franklin & Marshall College (F&M) in Lancaster. As a student, Schaffner was active in the drama program at F&M's Green Room Theatre, where he appeared in eleven plays and served as president of the Green Room Club. He then studied law at Columbia University in New York City, but his education was interrupted by service with the United States Navy in World War II during which he served with American amphibious forces in Europe and North Africa. In the latter stages of the war, he was sent to the Pacific Far East to serve with the United States Office for Strategic Services. Television career Schaffner returned to the United States after the war. He worked for a world peace organization then as an assistant director for the documentary film series The March of Time. He became a director in the news and public affairs department of CBS television where his jobs including covering sports, beauty pageants and public-service programs. In 1950 he directed "The Traitor", the first episode of Ford Theatre. He also did adaptations of Alice in Wonderland and Treasure Island He directed "Thunder on Sycamore Street" by Reginald Rose for Studio One. He and Rose reunited on Twelve Angry Men which won Schaffner an Emmy for Best Director. The following year Schaffner earned another Emmy for his work on the 1955 TV adaptation of the Broadway play The Caine Mutiny Court Martial, shown on the anthology series Ford Star Jubilee. Schaffner became one of three regular directors on the Kaiser Aluminium Hour; the others were George Roy Hill and Fielder Cook. He was also a regular director on Playhouse 90. He was the original director on the series, The Defenders, created by Rose. Schaffner's work earned him another Emmy. In 1960, he directed Allen Drury's stage play Advise and Consent. This earned him the Best Director recognition in the Variety Critics Poll. In the realm of network television, Schaffner also received widespread critical acclaim in 1962 for his groundbreaking collaboration with the First Lady of the United States Jacqueline Kennedy and CBS television's Musical Director Alfredo Antonini in the production of A Tour of the White House with Mrs. John F. Kennedy, a television special broadcast to over 80 million viewers worldwide. Schaffner's contributions in this
outlaws over the years in Missouri from a script by John Gay, and an adaptation of The French Lieutenant's Woman. He ended up making neither: Dynasty was never made, and French Lieutenant was made a decade later by another director. Schaffner reunited with George C. Scott in Islands in the Stream (1977), based on the novel by Ernest Hemingway. He then did The Boys from Brazil (1978) based on a novel by Ira Levin with Gregory Peck. Later work His later films included Sphinx (1981), a $10 million thriller about Egypt based on novel by Robin Cook and produced by Stanley O'Toole, who had made Boys from Brazil with Schaffner. It was a commercial failure as was Yes, Giorgio (1982), a musical comedy starring Luciano Pavarotti. Schaffner's last films were Lionheart (1987) and Welcome Home (1989). Schaffner was president of the Directors Guild of America from 1987 until his death in 1989. Frequent collaborators Jerry Goldsmith composed the music for seven of his films: The Stripper, Planet of the Apes, Patton, Papillon, Islands in the Stream, The Boys from Brazil and Lionheart. Four of them were nominated for the Academy Award for Best Original Score. Schaffner twice worked with actors Charlton Heston and Maurice Evans (The War Lord; Planet of the Apes), George C. Scott (Patton; Islands in the Stream) and Laurence Olivier (Nicholas and Alexandra; The Boys from Brazil). Personal life Schaffner married Helen Jean Gilchrist in 1948. The couple had two children, Jennie and Kate. She died in 2007. Schaffner died on July 2, 1989 at the age of 69. He was released 10 days before his death from a hospital where he was being treated for lung cancer. Critical perception Screenwriter William Goldman identified Schaffner in 1981 as being one of the three best directors (then living) at handling "scope" (a gift for screen epics) in films. The other two were David Lean and Richard Attenborough. Legacy In 1991, Schaffner's widow, Jean Schaffner, established the Franklin J. Schaffner Alumni Medal (colloquially known as the Franklin J. Schaffner Award), which is awarded by the American Film Institute at its annual ceremony to an alumnus of either the AFI Conservatory or the AFI Conservatory Directing Workshop for Women who best embodies the qualities of the late director: talent, taste, dedication and commitment to quality filmmaking. Notable recipients include David Lynch, Amy Heckerling, Terence Malick, Darren Aronofsky, Patty Jenkins and Paul Schrader, among others. The Director's Guild of America also began presenting a Franklin J. Schaffner Achievement Award to Associate Directors or Stage Managers in 1991. The moving image collection of Franklin J. Schaffner is held at the Academy Film Archive. In May 2020, the mayor of Lancaster, Pennsylvania, proclaimed Franklin Schaffner Week (May 23–30, 2020) to mark the centennial of his birth. Filmography Film Television
Source and influence Erroneous etymologies can exist for many reasons. Some are reasonable interpretations of the evidence that happen to be false. For a given word there may often have been many serious attempts by scholars to propose etymologies based on the best information available at the time, and these can be later modified or rejected as linguistic scholarship advances. The results of medieval etymology, for example, were plausible given the insights available at the time, but have often been rejected by modern linguists. The etymologies of humanist scholars in the early modern period began to produce more reliable results, but many of their hypotheses have also been superseded. Other false etymologies are the result of specious and untrustworthy claims made by individuals, such as the unfounded claims made by Daniel Cassidy that hundreds of common English words such as baloney, grumble, and bunkum derive from the Irish language. Some etymologies are part of urban legends, and seem to respond to a general taste for the surprising, counter-intuitive and even scandalous. One common example has to do with the phrase rule of thumb, meaning "a rough guideline". An urban legend has it that the phrase refers to an old English law under which a man could legally beat his wife with a stick no thicker than his thumb. In the United States, some of these scandalous legends have had to do with racism and slavery; common words such as picnic, buck, and crowbar have been alleged to stem from derogatory terms or racist practices. The "discovery" of these alleged etymologies is often believed by those who circulate them to draw attention
be more colorful and fanciful than the typical etymologies found in dictionaries, often involving stories of unusual practices in particular subcultures (e.g. Oxford students from non-noble families being supposedly forced to write sine nobilitate by their name, soon abbreviated to s.nob., hence the word snob). Many recent examples are "backronyms" (acronyms made up to explain a term), such as posh for "port outward, starboard homeward". Source and influence Erroneous etymologies can exist for many reasons. Some are reasonable interpretations of the evidence that happen to be false. For a given word there may often have been many serious attempts by scholars to propose etymologies based on the best information available at the time, and these can be later modified or rejected as linguistic scholarship advances. The results of medieval etymology, for example, were plausible given the insights available at the time, but have often been rejected by modern linguists. The etymologies of humanist scholars in the early modern period began to produce more reliable results, but many of their hypotheses have also been superseded. Other false etymologies are the result of specious and untrustworthy claims made by individuals, such as the unfounded claims made by Daniel Cassidy that hundreds of common English words such as baloney, grumble, and bunkum derive from the Irish language. Some etymologies are part of urban legends, and seem to respond to a general taste for the surprising, counter-intuitive and even scandalous. One common example has to do with the phrase rule of thumb, meaning "a rough guideline". An urban legend has it that the phrase refers to an old English law under which a man could legally beat his wife with a
than in any other species of passerines, with the possible exception of the estrildines [waxbills]. Beginning around 1990 a series of phylogenetic studies based on mitochondrial and nuclear DNA sequences resulted in substantial revisions in the taxonomy. Several groups of birds that had previously been assigned to other families were found to be related to the finches. The Neotropical Euphonia and the Chlorophonia were formerly placed in the tanager family Thraupidae due to their similar appearance but analysis of mitochondrial DNA sequences revealed that both genera were more closely related to the finches. They are now placed in a separate subfamily Euphoniinae within the Fringillidae. The Hawaiian honeycreepers were at one time placed in their own family, Drepanididae but were found to be closely related to the Carpodacus rosefinches and are now placed within the Carduelinae subfamily. The three largest genera, Carpodacus, Carduelis and Serinus were found to be polyphyletic. Each was split into monophyletic genera. The American rosefinches were moved from Carpodacus to Haemorhous. Carduelis was split by moving the greenfinches to Chloris and a large clade into Spinus leaving just three species in the original genus. Thirty seven species were moved from Serinus to Crithagra leaving eight species in the original genus. Today the family Fringillidae is divided into three subfamilies, the Fringillinae containing a single genus with the chaffinches, the Carduelinae containing 183 species divided into 49 genera, and the Euphoniinae containing the Euphonia and the Chlorophonia. Although Przewalski's "rosefinch" (Urocynchramus pylzowi) has ten primary flight feathers rather than the nine primaries of other finches, it was sometimes classified in the Carduelinae. It is now assigned to a distinct family, Urocynchramidae, monotypic as to genus and species, and with no particularly close relatives among the Passeroidea. Fossil record Fossil remains of true finches are rare, and those that are known can mostly be assigned to extant genera at least. Like the other Passeroidea families, the true finches seem to be of roughly Middle Miocene origin, around 20 to 10 million years ago (Ma). An unidentifable finch fossil from the Messinian age, around 12 to 7.3 million years ago (Ma) during the Late Miocene subepoch, has been found at Polgárdi in Hungary. Etymology The scientific name Fringillidae comes from the Latin word fringilla for the common chaffinch (Fringilla coelebs), a member of the family which is common in Europe. The name was coined (as Fringilladæ) by the English zoologist William Elford Leach in a guide to the contents of the British Museum published in 1820. Description The smallest "classical" true finches are the Andean siskin (Spinus spinescens) at as little as 9.5 cm (3.8 in) and the lesser goldfinch (Spinus psaltria) at as little as . The largest species is probably the collared grosbeak (Mycerobas affinis) at up to and , although larger lengths, to in the pine grosbeak (Pinicola enucleator), and weights, to in the evening grosbeak (Hesperiphona vespertina), have been recorded in species which are slightly smaller on average. They typically have strong, stubby beaks, which in some species can be quite large; however, Hawaiian honeycreepers are famous for the wide range of bill shapes and sizes brought about by adaptive radiation.
have a worldwide distribution except for Australia and the polar regions. The family Fringillidae contains more than two hundred species divided into fifty genera. It includes species known as siskins, canaries, redpolls, serins, grosbeaks and euphonias. Many birds in other families are also commonly called "finches". These groups include: the estrildid finches (Estrildidae) of the Old World tropics and Australia; some members of the Old World bunting family (Emberizidae) and the New World sparrow family (Passerellidae); and the Darwin's finches of the Galapagos islands, now considered members of the tanager family (Thraupidae). Finches and canaries were used in the UK, US and Canada in the coal mining industry to detect carbon monoxide from the eighteenth to twentieth century. This practice ceased in the UK in 1986. Systematics and taxonomy The taxonomy of the finch family, in particular the cardueline finches, has a long and complicated history. The study of the relationship between the taxa has been confounded by the recurrence of similar morphologies due to the convergence of species occupying similar niches. In 1968 the American ornithologist Raymond Andrew Paynter, Jr. wrote: Limits of the genera and relationships among the species are less understood – and subject to more controversy – in the carduelines than in any other species of passerines, with the possible exception of the estrildines [waxbills]. Beginning around 1990 a series of phylogenetic studies based on mitochondrial and nuclear DNA sequences resulted in substantial revisions in the taxonomy. Several groups of birds that had previously been assigned to other families were found to be related to the finches. The Neotropical Euphonia and the Chlorophonia were formerly placed in the tanager family Thraupidae due to their similar appearance but analysis of mitochondrial DNA sequences revealed that both genera were more closely related to the finches. They are now placed in a separate subfamily Euphoniinae within the Fringillidae. The Hawaiian honeycreepers were at one time placed in their own family, Drepanididae but were found to be closely related to the Carpodacus rosefinches and are now placed within the Carduelinae subfamily. The three largest genera, Carpodacus, Carduelis and Serinus were found to be polyphyletic. Each was split into monophyletic genera. The American rosefinches were moved from Carpodacus to Haemorhous. Carduelis was split by moving the greenfinches to Chloris and a large clade into Spinus leaving just three species in the original genus. Thirty seven species were moved from Serinus to Crithagra leaving eight species in the original genus. Today the family Fringillidae is divided into three subfamilies, the Fringillinae containing a single genus with the chaffinches, the Carduelinae containing 183 species divided into 49 genera, and the Euphoniinae containing the Euphonia and the Chlorophonia. Although Przewalski's "rosefinch" (Urocynchramus pylzowi) has ten primary flight feathers rather than the nine primaries of other finches, it was sometimes classified in the Carduelinae. It is now assigned to a distinct family, Urocynchramidae, monotypic as to genus and species, and with no particularly close relatives among the Passeroidea. Fossil record Fossil remains of true finches are rare, and those that are known can mostly be assigned to extant genera at least. Like the other Passeroidea families, the true finches seem to be of roughly Middle Miocene origin, around 20 to 10 million years ago (Ma). An unidentifable finch fossil from the Messinian age, around 12 to 7.3 million years ago (Ma) during the Late Miocene subepoch, has been found at Polgárdi in Hungary. Etymology The scientific name Fringillidae comes from the Latin word fringilla for the common chaffinch (Fringilla coelebs), a member of the family which is common in Europe. The name was coined (as Fringilladæ) by the English zoologist William Elford Leach in a guide to the contents of the British Museum published in 1820. Description The smallest "classical" true finches are the Andean siskin (Spinus spinescens) at as little as 9.5 cm (3.8 in) and the lesser goldfinch (Spinus psaltria) at as little as . The largest species is probably the collared grosbeak (Mycerobas affinis) at up to and , although larger lengths, to in the pine grosbeak (Pinicola enucleator), and weights, to in the evening grosbeak (Hesperiphona vespertina), have been recorded in species which are slightly smaller on average. They typically have strong, stubby beaks, which in some species can be quite large; however, Hawaiian honeycreepers are famous for the wide range of bill shapes and sizes brought about by adaptive radiation. All true finches have 9 primary remiges and 12 rectrices. The basic plumage colour is brownish, sometimes greenish; many have considerable amounts of black, while white plumage is
tails of the phospholipids that comprise the lipid bilayer. Only small, non-polar molecules, such as oxygen and carbon dioxide, can diffuse easily across the membrane. Hence, small polar molecules are transported by proteins in the form of transmembrane channels. These channels are gated, meaning that they open and close, and thus deregulate the flow of ions or small polar molecules across membranes, sometimes against the osmotic gradient. Larger molecules are transported by transmembrane carrier proteins, such as permeases, that change their conformation as the molecules are carried across (e.g. glucose or amino acids). Non-polar molecules, such as retinol or lipids, are poorly soluble in water. They are transported through aqueous compartments of cells or through extracellular space by water-soluble carriers (e.g. retinol binding protein). The metabolites are not altered because no energy is required for facilitated diffusion. Only permease changes its shape in order to transport metabolites. The form of transport through a cell membrane in which a metabolite is modified is called group translocation transportation. Glucose, sodium ions, and chloride ions are just a few examples of molecules and ions that must efficiently cross the plasma membrane but to which the lipid bilayer of the membrane is virtually impermeable. Their transport must therefore be "facilitated" by proteins that span the membrane and provide an alternative route or bypass mechanism. Some examples of proteins that mediate this process are glucose transporters, organic cation transport proteins, urea transporter, monocarboxylate transporter 8 and monocarboxylate transporter 10. In vivo model of facilitated diffusion Many physical and biochemical processes are regulated by diffusion. Facilitated diffusion is one form of diffusion and it is important in several metabolic processes. Facilitated diffusion is the main mechanism behind the binding of Transcription Factors (TFs) to designated target sites on the DNA molecule. The in vitro model, which is a very well known method of facilitated diffusion, that takes place outside of a living cell, explains the 3-dimensional pattern of diffusion in the cytosol and the 1-dimensional diffusion along the DNA contour. After carrying out extensive research on processes occurring out of the cell, this mechanism was generally accepted but there was a need to verify that this mechanism could take place in vivo or inside of living cells. Bauer & Metzler (2013) therefore carried out an experiment using a bacterial genome in which they investigated the average time for TF – DNA binding to occur. After analyzing the process for the time it takes for TF's to diffuse across the contour and cytoplasm of the bacteria's DNA, it was concluded that in vitro and in vivo are similar in that the association and dissociation rates of TF's to and from the DNA are similar in both. Also, on the DNA contour, the motion is slower and target sites are easy to localize while in the cytoplasm, the motion is faster but the TF's are not sensitive to their targets and so binding is restricted. Intracellular facilitated diffusion Single-molecule imaging is an imaging technique which provides an ideal resolution necessary for the study of the Transcription factor binding mechanism in living cells. In prokaryotic bacteria cells such as E. coli, facilitated diffusion is required in order for regulatory proteins to locate and bind to target sites on DNA base pairs. There are 2 main steps involved: the protein binds to a non-specific site on the DNA and then it diffuses along the DNA chain until it locates a target site, a process referred to as sliding. According to Brackley et al. (2013), during the process of protein sliding, the protein searches the entire length of the DNA chain using 3-D and 1-D diffusion patterns. During 3-D
of facilitated diffusion is saturable with respect to the concentration difference between the two phases; unlike free diffusion which is linear in the concentration difference. the temperature dependence of facilitated transport is substantially different due to the presence of an activated binding event, as compared to free diffusion where the dependence on temperature is mild. Polar molecules and large ions dissolved in water cannot diffuse freely across the plasma membrane due to the hydrophobic nature of the fatty acid tails of the phospholipids that comprise the lipid bilayer. Only small, non-polar molecules, such as oxygen and carbon dioxide, can diffuse easily across the membrane. Hence, small polar molecules are transported by proteins in the form of transmembrane channels. These channels are gated, meaning that they open and close, and thus deregulate the flow of ions or small polar molecules across membranes, sometimes against the osmotic gradient. Larger molecules are transported by transmembrane carrier proteins, such as permeases, that change their conformation as the molecules are carried across (e.g. glucose or amino acids). Non-polar molecules, such as retinol or lipids, are poorly soluble in water. They are transported through aqueous compartments of cells or through extracellular space by water-soluble carriers (e.g. retinol binding protein). The metabolites are not altered because no energy is required for facilitated diffusion. Only permease changes its shape in order to transport metabolites. The form of transport through a cell membrane in which a metabolite is modified is called group translocation transportation. Glucose, sodium ions, and chloride ions are just a few examples of molecules and ions that must efficiently cross the plasma membrane but to which the lipid bilayer of the membrane is virtually impermeable. Their transport must therefore be "facilitated" by proteins that span the membrane and provide an alternative route or bypass mechanism. Some examples of proteins that mediate this process are glucose transporters, organic cation transport proteins, urea transporter, monocarboxylate transporter 8 and monocarboxylate transporter 10. In vivo model of facilitated diffusion Many physical and biochemical processes are regulated by diffusion. Facilitated diffusion is one form of diffusion and it is important in several metabolic processes. Facilitated diffusion is the main mechanism behind the binding of Transcription Factors (TFs) to designated target sites on the DNA molecule. The in vitro model, which is a very well known method of facilitated diffusion, that takes place outside of a living cell, explains the 3-dimensional pattern of diffusion in the cytosol and the 1-dimensional diffusion along the DNA contour. After carrying out extensive research on processes occurring out of the cell, this mechanism was generally accepted but there was a need to verify that this mechanism could take place in vivo or inside of living cells. Bauer & Metzler (2013) therefore carried out an experiment using a bacterial genome in which they investigated the average time for TF – DNA binding to occur. After analyzing the process for the time it takes for TF's to diffuse across the contour and cytoplasm of the bacteria's DNA, it was concluded that in vitro and in vivo are similar in that the association and dissociation rates of TF's to and from the DNA are similar in both. Also, on the DNA contour, the motion is slower and target sites are easy to localize while in the cytoplasm, the motion is faster but the TF's
ensure its air superiority. This point was reinforced after the loss of two Republic F-105 Thunderchief aircraft to obsolete MiG-17s on 4 April 1965. In April 1965, Harold Brown, at that time director of the Department of Defense Research and Engineering, stated the favored position was to consider the F-5 and begin studies of an "F-X". These early studies envisioned a production run of 800 to 1,000 aircraft and stressed maneuverability over speed; it also stated that the aircraft would not be considered without some level of ground-attack capability. On 1 August, Gabriel Disosway took command of Tactical Air Command and reiterated calls for the F-X, but lowered the required performance from Mach 3.0 to 2.5 to lower costs. An official requirements document for an air superiority fighter was finalized in October 1965, and sent out as a request for proposals to 13 companies on 8 December. Meanwhile, the Air Force chose the A-7 over the F-5 for the support role on 5 November 1965, giving further impetus for an air superiority design as the A-7 lacked any credible air-to-air capability. Eight companies responded with proposals. Following a downselect, four companies were asked to provide further developments. In total, they developed some 500 design concepts. Typical designs featured variable-sweep wings, weight over , included a top speed of Mach 2.7 and a thrust-to-weight ratio of 0.75. When the proposals were studied in July 1966, the aircraft were roughly the size and weight of the TFX F-111, and like that aircraft, were designs that could not be considered an air-superiority fighter. Smaller, lighter Through this period, studies of combat over Vietnam were producing worrying results. Theory had stressed long-range combat using missiles and optimized aircraft for this role. The result was highly loaded aircraft with large radar and excellent speed, but limited maneuverability and often lacking a gun. The canonical example was the McDonnell Douglas F-4 Phantom II, used by the USAF, USN, and U.S. Marine Corps to provide air superiority over Vietnam, the only fighter with enough power, range, and maneuverability to be given the primary task of dealing with the threat of Soviet fighters while flying with visual engagement rules. In practice, due to policy and practical reasons, aircraft were closing to visual range and maneuvering, placing the larger US aircraft at a disadvantage to the much less expensive day fighters such as the MiG-21. Missiles proved to be much less reliable than predicted, especially at close range. Although improved training and the introduction of the M61 Vulcan cannon on the F-4 did much to address the disparity, these early outcomes led to considerable re-evaluation of the 1963 Project Forecast doctrine. This led to John Boyd's energy–maneuverability theory, which stressed that extra power and maneuverability were key aspects of a successful fighter design and these were more important than outright speed. Through tireless championing of the concepts and good timing with the "failure" of the initial F-X project, the "fighter mafia" pressed for a lightweight day fighter that could be built and operated in large numbers to ensure air superiority. In early 1967, they proposed that the ideal design had a thrust-to-weight ratio near 1:1, a maximum speed further reduced to Mach 2.3, a weight of , and a wing loading of . By this time, the Navy had decided the F-111 would not meet their requirements and began the development of a new dedicated fighter design, the VFAX program. In May 1966, McNamara again asked the forces to study the designs and see whether the VFAX would meet the Air Force's F-X needs. The resulting studies took 18 months and concluded that the desired features were too different; the Navy stressed loiter time and mission flexibility, while the Air Force was now looking primarily for maneuverability. Focus on air superiority In 1967, the Soviet Union revealed the Mikoyan-Gurevich MiG-25 at the Domodedovo airfield near Moscow. The MiG-25 was designed as a high-speed, high-altitude interceptor aircraft, and made many performance tradeoffs to excel in this role. Among these was the requirement for very high speed, over Mach 2.8, which demanded the use of stainless steel instead of aluminum for many parts of the aircraft. The added weight demanded a much larger wing to allow the aircraft to operate at the required high altitudes. However, to observers, it appeared outwardly similar to the very large F-X studies, an aircraft with high speed and a large wing offering high maneuverability, leading to serious concerns throughout the Department of Defense and the various arms that the US was being outclassed. The MiG-23 was likewise a subject of concern, and it was generally believed to be a better aircraft than the F-4. The F-X would outclass the MiG-23, but now the MiG-25 appeared to be superior in speed, ceiling, and endurance to all existing US fighters, even the F-X. Thus, an effort to improve the F-X followed. Both Headquarters USAF and TAC continued to call for a multipurpose aircraft, while both Disosway and Air Chief of Staff Bruce K. Holloway pressed for a pure air-superiority design that would be able to meet the expected performance of the MiG-25. During the same period, the Navy had ended its VFAX program and instead accepted a proposal from Grumman for a smaller and more maneuverable design known as VFX, later becoming the Grumman F-14 Tomcat. VFX was considerably closer to the evolving F-X requirements. The Air Force in-fighting was eventually ended by the worry that the Navy's VFAX would be forced on them; in May 1968, it was stated that "We finally decided – and I hope there is no one who still disagrees – that this aircraft is going to be an air superiority fighter". In September 1968, a request for proposals was released to major aerospace companies. These requirements called for single-seat fighter having a maximum take-off weight of for the air-to-air role with a maximum speed of Mach 2.5 and a thrust-to-weight ratio of nearly 1:1 at mission weight. It also called for a twin-engined arrangement, as this was believed to respond to throttle changes more rapidly and might offer commonality with the Navy's VFX program. However, details of the avionics were left largely undefined, as whether to build a larger aircraft with a powerful radar that could detect the enemy at longer ranges was not clear, or alternatively a smaller aircraft that would make detecting it more difficult for the enemy. Four companies submitted proposals, with the Air Force eliminating General Dynamics and awarding contracts to Fairchild Republic, North American Rockwell, and McDonnell Douglas for the definition phase in December 1968. The companies submitted technical proposals by June 1969. The Air Force announced the selection of McDonnell Douglas on 23 December 1969. The winning design resembled the twin-tailed F-14, but with fixed wings; both designs were based on configurations studied in wind-tunnel testing by NASA. The Eagle's initial versions were the F-15 single-seat variant and TF-15 twin-seat variant. (After the F-15C was first flown, the designations were changed to "F-15A" and "F-15B"). These versions would be powered by new Pratt & Whitney F100 engines to achieve a combat thrust-to-weight ratio in excess of 1:1. A proposed 25-mm Ford-Philco GAU-7 cannon with caseless ammunition suffered development problems. It was dropped in favor of the standard M61 Vulcan gun. The F-15 used conformal carriage of four Sparrow missiles like the Phantom. The fixed wing was put onto a flat, wide fuselage that also provided an effective lifting surface. The first F-15A flight was made on 27 July 1972, with the first flight of the two-seat F-15B following in July 1973. The F-15 has a "look-down/shoot-down" radar that can distinguish low-flying moving targets from ground clutter. It would use computer technology with new controls and displays to lower pilot workload and require only one pilot to save weight. Unlike the F-14 or F-4, the F-15 has only a single canopy frame with clear vision forward. The USAF introduced the F-15 as "the first dedicated USAF air-superiority fighter since the North American F-86 Sabre". The F-15 was favored by customers such as the Israel and Japan air arms. Criticism from the fighter mafia that the F-15 was too large to be a dedicated dogfighter and too expensive to procure in large numbers, led to the Lightweight Fighter (LWF) program, which led to the USAF General Dynamics F-16 Fighting Falcon and the middle-weight Navy McDonnell Douglas F/A-18 Hornet. Further development The single-seat F-15C and two-seat F-15D models entered production in 1978 and conducted their first flights in February and June of that year. These models were fitted with the Production Eagle Package (PEP 2000), which included of additional internal fuel, provisions for exterior conformal fuel tanks, and an increased maximum takeoff weight up to . The increased takeoff weight allows internal fuel, a full weapons load, conformal fuel tanks, and three external fuel tanks to be carried. The APG-63 radar uses a programmable signal processor (PSP), enabling the radar to be reprogrammable for additional purposes such as the addition of new armaments and equipment. The PSP was the first of its kind in the world, and the upgraded APG-63 radar was the first radar to use it. Other improvements included strengthened landing gear, a new digital central computer, and an overload warning system, which allows the pilot to fly up to 9 g at all weights. The F-15 Multistage Improvement Program (MSIP) was initiated in February 1983 with the first production MSIP F-15C produced in 1985. Improvements included an upgraded central computer; a Programmable Armament Control Set, allowing for advanced versions of the AIM-7, AIM-9, and AIM-120A missiles; and an expanded Tactical Electronic Warfare System that provides improvements to the ALR-56C radar warning receiver and ALQ-135 countermeasure set. The final 43 F-15Cs included the Hughes APG-70 radar developed for the F-15E; these are sometimes referred as Enhanced Eagles. Earlier MSIP F-15Cs with the APG-63 were upgraded to the APG-63(V)1 to improve maintainability and to perform similar to the APG-70. Existing F-15s were retrofitted with these improvements. In 1979, McDonnell Douglas and F-15 radar manufacturer, Hughes, teamed to privately develop a strike fighter version of the F-15. This version competed in the Air Force's Dual-Role Fighter competition starting in 1982. The F-15E strike variant was selected for production over General Dynamics' competing F-16XL in 1984. Beginning in 1985, F-15C and D models were equipped with the improved P&W F100-PW-220 engine and digital engine controls, providing quicker throttle response, reduced wear, and lower fuel consumption. Starting in 1997, original F100-PW-100 engines were upgraded to a similar configuration with the designation F100-PW-220E starting. Beginning in 2007, 179 USAF F-15Cs would be retrofitted with the AN/APG-63(V)3 Active Electronically Scanned Array radar. A significant number of F-15s are to be equipped with the Joint Helmet Mounted Cueing System. Lockheed Martin is working on an IRST system for the F-15C. A follow-on upgrade called the Eagle passive/active warning survivability system (EPAWSS) was planned, but remained unfunded. Boeing was selected in October 2015 to serve as prime contractor for the EPAWSS, with BAE Systems selected as a subcontractor. The EPAWSS is an all-digital system with advanced electronic countermeasures, radar warning, and increased chaff and flare capabilities in a smaller footprint than the 1980s-era Tactical Electronic Warfare System. More than 400 F-15Cs and F-15Es will have the system installed. In September 2015, Boeing unveiled its 2040C Eagle upgrade, designed to keep the F-15 relevant through 2040. Seen as a necessity because of the low numbers of F-22s procured, the upgrade builds upon the company's F-15SE Silent Eagle concept with low-observable features. Most improvements focus on lethality including quad-pack munitions racks to double its missile load to 16, conformal fuel tanks for extended range, "Talon HATE" communications pod to communicate with fifth-generation fighters, the APG-63(v)3 AESA radar, a long-range infrared search and track sensor, and BAE Systems' EPAWSS systems. Design Overview The F-15 has an all-metal semi-monocoque fuselage with a large-cantilever, shoulder-mounted wing. The wing planform of the F-15 suggests a modified cropped delta shape with a leading-edge sweepback angle of 45°. Ailerons and a simple high-lift flap are located on the trailing edge. No leading-edge maneuvering flaps are used. This complication was avoided by the combination of low wing loading and fixed leading-edge camber that varies with spanwise position along the wing. Airfoil thickness ratios vary from 6% at the root to 3% at the tip. The empennage is of metal and composite construction, with twin aluminium/composite material honeycomb structure vertical stabilizers with boron-composite skin, resulting in an exceptionally thin tailplane and rudders. Composite horizontal all-moving tails outboard of the vertical stabilizers move independently to provide roll control in some flight maneuvers. The F-15 has a spine-mounted air brake and retractable tricycle landing gear. It is powered by two Pratt & Whitney F100 axial compressor turbofan engines with afterburners, mounted side by side in the fuselage and fed by rectangular inlets with variable intake ramps. The cockpit is mounted high in the forward fuselage with a one-piece windscreen and large canopy for increased visibility and a 360° field of view for the pilot. The airframe began to incorporate advanced superplastically formed titanium components in the 1980s. The F-15's maneuverability is derived from low wing loading (weight to wing area ratio) with a high thrust-to-weight ratio, enabling the aircraft to turn tightly without losing airspeed. The F-15 can climb to in around 60 seconds. At certain speeds, the dynamic thrust output of the dual engines is greater than the aircraft's combat weight and drag, so it has the ability to accelerate vertically. The weapons and flight-control systems are designed so that one person can safely and effectively perform air-to-air combat. The A and C models are single-seat variants; these were the main air-superiority versions produced. B and D models add a second seat behind the pilot for training. E models use the second seat for a weapon systems officer. Visibly, the F-15 has a unique feature vis-à-vis other modern fighter aircraft; it does not have the distinctive "turkey feather" aerodynamic exhaust petals covering its engine nozzles. Following problems during development of its exhaust petal design, including dislodgment during flight, the decision was made to remove them, resulting in a 3% aerodynamic drag increase. The F-15 was shown to be capable of controlled flight with only one wing. After a mid-air collision which removed a complete wing the pilot quickly learned how to fly the aircraft and land it safely. Subsequent wind-tunnel tests on a one-wing model confirmed that controllable flight was only possible within a very limited speed range of +/- 20 knots and angle of attack variation of +/- 20 degrees. The event resulted in research into damage adaptive technology and a system called "Intelligent Flight Control System". Avionics A multimission avionics system includes a head-up display (HUD), advanced radar, AN/ASN-109 inertial guidance system, flight instruments, ultra high frequency communications, and tactical air navigation system and instrument landing system receivers. It also has an internally mounted, tactical electronic warfare system, Identification friend or foe system, an electronic countermeasures suite, and a central digital computer. The HUD projects all essential flight information gathered by the integrated avionics system. This display, visible in any light condition, provides the pilot information necessary to track and destroy an enemy aircraft without having to look down at cockpit instruments. The F-15's versatile APG-63 and 70 pulse-Doppler radar systems can look up at high-flying targets and look-down/shoot-down at low-flying targets without being confused by ground clutter. These radars can detect and track aircraft and small high-speed targets at distances beyond visual range down to close range, and at altitudes down to treetop level. The APG-63 has a basic range of . The radar feeds target information into the central computer for effective weapons delivery. For close-in dogfights, the radar automatically acquires enemy aircraft, and this information is projected on the head-up display. The F-15's electronic warfare system provides both threat warning (radar warning receiver) and automatic countermeasures against selected threats. Weaponry and external stores A variety of air-to-air weaponry can be carried by the F-15. An automated weapon system enables the pilot to release weapons effectively and safely, using the head-up display and the avionics and weapons controls located on the engine throttles or control stick. When the pilot changes from one weapon system to another, visual guidance for the selected weapon automatically appears on the head-up display. The Eagle can be armed with combinations of four different air-to-air weapons: AIM-7F/M Sparrow missiles or AIM-120 AMRAAM advanced medium-range air-to-air missiles on its lower fuselage corners, AIM-9L/M Sidewinder or AIM-120 AMRAAM missiles on two pylons under the wings, and an internal M61 Vulcan Gatling gun in the right wing root. Low-drag conformal fuel tanks (CFTs) were developed for the F-15C and D models. They can be attached to the sides of the engine air intakes under each wing and are designed to the same load factors and airspeed limits as the basic aircraft. These tanks slightly degrade performance by increasing aerodynamic drag and cannot be jettisoned in-flight. However, they cause less drag than conventional external tanks. Each conformal tank can hold 750 U.S. gallons (2,840 L) of fuel. These CFTs increase range and reduce the need for in-flight refueling. All external stations for munitions remain available with the tanks in use. Moreover, Sparrow or AMRAAM missiles can be attached to the corners of the CFTs. The 57 FIS based at Keflavik NAS, Iceland, was the only C-model squadron to use CFTs on a regular basis due to its extended operations over the North Atlantic. With the closure of the 57 FIS, the F-15E is the only variant to carry them on a routine basis. CFTs have also been sold to Israel and Saudi Arabia. Upgrades The McDonnell Douglas F-15E Strike Eagle is a two-seat, dual-role, totally integrated fighter for all-weather, air-to-air, and deep interdiction missions. The rear cockpit is upgraded to include four multipurpose cathode ray tube displays for aircraft systems and weapons management. The digital, triple-redundant Lear Siegler aircraft flight control system permits coupled automatic terrain following, enhanced by a ring-laser gyro inertial navigation system. For low-altitude, high-speed penetration and precision attack on tactical targets at night or in adverse weather, the F-15E carries a high-resolution APG-70 radar and LANTIRN pods to provide thermography. The newest F-15E version is the F-15 Advanced, which features fly-by-wire controls. The APG-63(V)2 active electronically scanned array (AESA) radar has been retrofitted to 18 U.S. Air Force F-15C aircraft. This upgrade includes most of the new hardware from the APG-63(V)1, but adds an AESA to provide increased pilot situation awareness. The AESA radar has an exceptionally agile beam, providing nearly instantaneous track updates and enhanced multitarget tracking capability. The APG-63(V)2 is compatible with current F-15C weapon loads and enables pilots to take full advantage of AIM-120 AMRAAM capabilities, simultaneously guiding multiple missiles to several targets widely spaced in azimuth, elevation, or range. The further improved APG-63(V)3 AESA radar is expected to be fitted to 179 F-15C aircraft; the first upgraded aircraft was delivered in October 2010. The ZAP (Zone Acquisition Program) missile launch envelope has been integrated into the operational flight program system of all U.S. F-15 aircraft, providing dynamic launch zone and launch acceptability region information for missiles to the pilot by display cues in real-time. Operational history Introduction and early service The largest operator of the F-15 is the United States Air Force. The first Eagle, an F-15B, was delivered on 13 November 1974. In January 1976, the first Eagle destined for a combat squadron, the 555th TFS, was delivered. These initial aircraft carried the Hughes Aircraft (now Raytheon) APG-63 radar. The first kill by an F-15 was scored by Israeli Air Force ace Moshe Melnik in 1979. During Israeli raids against Palestinian factions in Lebanon in 1979–1981, F-15As reportedly downed 13 Syrian MiG-21s and two Syrian MiG-25s. Israeli F-15As and Bs participated as escorts in Operation Opera, an air strike on an Iraqi nuclear reactor. In the 1982 Lebanon War, Israeli F-15s were credited with 41 Syrian aircraft destroyed (23 MiG-21s and 17 MiG-23s, and one Aérospatiale SA.342L Gazelle helicopter). During Operation Mole Cricket 19, Israeli F-15s and F-16s together shot down 82 Syrian fighter aircraft (MiG-21s, MiG-23s, and MiG-23Ms) with no losses. Israel was the only operator to use and develop the air-to-ground abilities of the air-superiority F-15 variants, doing so because the fighter's range was well beyond other combat aircraft in the Israeli inventory in the 1980s. The first known use of F-15s for a strike mission was during Operation Wooden Leg on 1 October 1985, with six F-15Ds attacking PLO Headquarters in Tunis with two GBU-15 guided bombs per aircraft and two F-15Cs restriking the ruins with six Mk-82 unguided bombs each. This was one of the few times air-superiority F-15s (A/B/C/D models) were used in tactical strike missions. Israeli air-superiority F-15 variants have since been extensively upgraded to carry a wider range of air-to-ground armaments, including JDAM GPS-guided bombs and Popeye missile. Royal Saudi Air Force F-15C pilots reportedly shot down two Iranian Air Force F-4E Phantom IIs in a skirmish on 5 June 1984. Anti-satellite trials The ASM-135 missile was designed to be a standoff antisatellite (ASAT) weapon, with the F-15 acting as a first stage. The Soviet Union could correlate a U.S. rocket launch with a spy satellite loss, but an F-15 carrying an ASAT would blend in among hundreds of F-15 flights. From January 1984 to September 1986, two F-15As were used as launch platforms for the ASAT missile. The F-15As were modified to carry one ASM-135 on the centerline station with extra equipment within a special centerline pylon. The launch aircraft executed a Mach 1.22, 3.8 g climb at 65° to release the ASAT missile at an altitude of . The flight computer was updated to control the zoom-climb and missile release. The third test flight involved a retired P78-1 solar observatory satellite in a orbit, which was destroyed by kinetic energy. The pilot, USAF Major Wilbert D. "Doug" Pearson, became the only pilot to destroy a satellite. The ASAT program involved five test launches. The program was officially terminated in 1988. Gulf War and aftermath The USAF began deploying F-15C, D, and E model aircraft to the Persian Gulf region in August 1990 for Operations Desert Shield and Desert Storm. During the Gulf War, the F-15 accounted for 36 of the 39 air-to-air victories by U.S. Air Force against Iraqi forces. Iraq has confirmed the loss of 23 of its aircraft in air-to-air combat. The F-15C and D fighters were used in the air-superiority role, while F-15E Strike Eagles were used in air-to-ground attacks mainly at night, hunting modified Scud missile launchers and artillery sites using the LANTIRN system. According to the USAF, its F-15Cs had 34 confirmed kills of Iraqi aircraft during the 1991 Gulf War, most of them by missile fire: five Mikoyan MiG-29s, two MiG-25s, eight MiG-23s, two MiG-21s, two Sukhoi Su-25s, four Sukhoi Su-22s, one Sukhoi Su-7, six Dassault Mirage F1s, one Ilyushin Il-76 cargo aircraft, one Pilatus PC-9 trainer, and two Mil Mi-8 helicopters. Air superiority was achieved in the first three days of the conflict; many of the later kills were reportedly of Iraqi aircraft fleeing to Iran, rather than engaging American aircraft. A Strike Eagle achieved an aerial kill of an Iraqi Mi-8 helicopter with a laser-guided bomb. Two F-15Es were lost to ground fire, another was damaged on the ground by a Scud strike on King Abdulaziz Air Base. On 11 November 1990, a Royal Saudi Air Force (RSAF) pilot defected to Sudan with an F-15C fighter during Operation Desert Shield. Saudi Arabia paid US$40 million for return of the aircraft three months later. RSAF F-15s shot down two Iraqi Mirage F1s during the Operation Desert storm. One Saudi Arabian F-15C was lost to a crash during the Persian Gulf War in 1991. The IQAF claimed this fighter was part of two USAF F-15Cs that engaged two Iraqi MiG-25PDs, and was hit by an R-40 missile before crashing. They have since been deployed to support Operation Southern Watch, the patrolling of the Iraqi no-fly zones in Southern Iraq; Operation Provide Comfort in Turkey; in support of NATO operations in Bosnia, and recent air expeditionary force deployments. In 1994, two U.S. Army Sikorsky UH-60 Black Hawks were mistakenly downed by USAF F-15Cs in northern Iraq in a friendly-fire incident. USAF F-15Cs shot down four Yugoslav MiG-29s using AIM-120 and AIM-7 Radar guided missiles during NATO's 1999 intervention in Kosovo, Operation Allied Force.
APG-70. Existing F-15s were retrofitted with these improvements. In 1979, McDonnell Douglas and F-15 radar manufacturer, Hughes, teamed to privately develop a strike fighter version of the F-15. This version competed in the Air Force's Dual-Role Fighter competition starting in 1982. The F-15E strike variant was selected for production over General Dynamics' competing F-16XL in 1984. Beginning in 1985, F-15C and D models were equipped with the improved P&W F100-PW-220 engine and digital engine controls, providing quicker throttle response, reduced wear, and lower fuel consumption. Starting in 1997, original F100-PW-100 engines were upgraded to a similar configuration with the designation F100-PW-220E starting. Beginning in 2007, 179 USAF F-15Cs would be retrofitted with the AN/APG-63(V)3 Active Electronically Scanned Array radar. A significant number of F-15s are to be equipped with the Joint Helmet Mounted Cueing System. Lockheed Martin is working on an IRST system for the F-15C. A follow-on upgrade called the Eagle passive/active warning survivability system (EPAWSS) was planned, but remained unfunded. Boeing was selected in October 2015 to serve as prime contractor for the EPAWSS, with BAE Systems selected as a subcontractor. The EPAWSS is an all-digital system with advanced electronic countermeasures, radar warning, and increased chaff and flare capabilities in a smaller footprint than the 1980s-era Tactical Electronic Warfare System. More than 400 F-15Cs and F-15Es will have the system installed. In September 2015, Boeing unveiled its 2040C Eagle upgrade, designed to keep the F-15 relevant through 2040. Seen as a necessity because of the low numbers of F-22s procured, the upgrade builds upon the company's F-15SE Silent Eagle concept with low-observable features. Most improvements focus on lethality including quad-pack munitions racks to double its missile load to 16, conformal fuel tanks for extended range, "Talon HATE" communications pod to communicate with fifth-generation fighters, the APG-63(v)3 AESA radar, a long-range infrared search and track sensor, and BAE Systems' EPAWSS systems. Design Overview The F-15 has an all-metal semi-monocoque fuselage with a large-cantilever, shoulder-mounted wing. The wing planform of the F-15 suggests a modified cropped delta shape with a leading-edge sweepback angle of 45°. Ailerons and a simple high-lift flap are located on the trailing edge. No leading-edge maneuvering flaps are used. This complication was avoided by the combination of low wing loading and fixed leading-edge camber that varies with spanwise position along the wing. Airfoil thickness ratios vary from 6% at the root to 3% at the tip. The empennage is of metal and composite construction, with twin aluminium/composite material honeycomb structure vertical stabilizers with boron-composite skin, resulting in an exceptionally thin tailplane and rudders. Composite horizontal all-moving tails outboard of the vertical stabilizers move independently to provide roll control in some flight maneuvers. The F-15 has a spine-mounted air brake and retractable tricycle landing gear. It is powered by two Pratt & Whitney F100 axial compressor turbofan engines with afterburners, mounted side by side in the fuselage and fed by rectangular inlets with variable intake ramps. The cockpit is mounted high in the forward fuselage with a one-piece windscreen and large canopy for increased visibility and a 360° field of view for the pilot. The airframe began to incorporate advanced superplastically formed titanium components in the 1980s. The F-15's maneuverability is derived from low wing loading (weight to wing area ratio) with a high thrust-to-weight ratio, enabling the aircraft to turn tightly without losing airspeed. The F-15 can climb to in around 60 seconds. At certain speeds, the dynamic thrust output of the dual engines is greater than the aircraft's combat weight and drag, so it has the ability to accelerate vertically. The weapons and flight-control systems are designed so that one person can safely and effectively perform air-to-air combat. The A and C models are single-seat variants; these were the main air-superiority versions produced. B and D models add a second seat behind the pilot for training. E models use the second seat for a weapon systems officer. Visibly, the F-15 has a unique feature vis-à-vis other modern fighter aircraft; it does not have the distinctive "turkey feather" aerodynamic exhaust petals covering its engine nozzles. Following problems during development of its exhaust petal design, including dislodgment during flight, the decision was made to remove them, resulting in a 3% aerodynamic drag increase. The F-15 was shown to be capable of controlled flight with only one wing. After a mid-air collision which removed a complete wing the pilot quickly learned how to fly the aircraft and land it safely. Subsequent wind-tunnel tests on a one-wing model confirmed that controllable flight was only possible within a very limited speed range of +/- 20 knots and angle of attack variation of +/- 20 degrees. The event resulted in research into damage adaptive technology and a system called "Intelligent Flight Control System". Avionics A multimission avionics system includes a head-up display (HUD), advanced radar, AN/ASN-109 inertial guidance system, flight instruments, ultra high frequency communications, and tactical air navigation system and instrument landing system receivers. It also has an internally mounted, tactical electronic warfare system, Identification friend or foe system, an electronic countermeasures suite, and a central digital computer. The HUD projects all essential flight information gathered by the integrated avionics system. This display, visible in any light condition, provides the pilot information necessary to track and destroy an enemy aircraft without having to look down at cockpit instruments. The F-15's versatile APG-63 and 70 pulse-Doppler radar systems can look up at high-flying targets and look-down/shoot-down at low-flying targets without being confused by ground clutter. These radars can detect and track aircraft and small high-speed targets at distances beyond visual range down to close range, and at altitudes down to treetop level. The APG-63 has a basic range of . The radar feeds target information into the central computer for effective weapons delivery. For close-in dogfights, the radar automatically acquires enemy aircraft, and this information is projected on the head-up display. The F-15's electronic warfare system provides both threat warning (radar warning receiver) and automatic countermeasures against selected threats. Weaponry and external stores A variety of air-to-air weaponry can be carried by the F-15. An automated weapon system enables the pilot to release weapons effectively and safely, using the head-up display and the avionics and weapons controls located on the engine throttles or control stick. When the pilot changes from one weapon system to another, visual guidance for the selected weapon automatically appears on the head-up display. The Eagle can be armed with combinations of four different air-to-air weapons: AIM-7F/M Sparrow missiles or AIM-120 AMRAAM advanced medium-range air-to-air missiles on its lower fuselage corners, AIM-9L/M Sidewinder or AIM-120 AMRAAM missiles on two pylons under the wings, and an internal M61 Vulcan Gatling gun in the right wing root. Low-drag conformal fuel tanks (CFTs) were developed for the F-15C and D models. They can be attached to the sides of the engine air intakes under each wing and are designed to the same load factors and airspeed limits as the basic aircraft. These tanks slightly degrade performance by increasing aerodynamic drag and cannot be jettisoned in-flight. However, they cause less drag than conventional external tanks. Each conformal tank can hold 750 U.S. gallons (2,840 L) of fuel. These CFTs increase range and reduce the need for in-flight refueling. All external stations for munitions remain available with the tanks in use. Moreover, Sparrow or AMRAAM missiles can be attached to the corners of the CFTs. The 57 FIS based at Keflavik NAS, Iceland, was the only C-model squadron to use CFTs on a regular basis due to its extended operations over the North Atlantic. With the closure of the 57 FIS, the F-15E is the only variant to carry them on a routine basis. CFTs have also been sold to Israel and Saudi Arabia. Upgrades The McDonnell Douglas F-15E Strike Eagle is a two-seat, dual-role, totally integrated fighter for all-weather, air-to-air, and deep interdiction missions. The rear cockpit is upgraded to include four multipurpose cathode ray tube displays for aircraft systems and weapons management. The digital, triple-redundant Lear Siegler aircraft flight control system permits coupled automatic terrain following, enhanced by a ring-laser gyro inertial navigation system. For low-altitude, high-speed penetration and precision attack on tactical targets at night or in adverse weather, the F-15E carries a high-resolution APG-70 radar and LANTIRN pods to provide thermography. The newest F-15E version is the F-15 Advanced, which features fly-by-wire controls. The APG-63(V)2 active electronically scanned array (AESA) radar has been retrofitted to 18 U.S. Air Force F-15C aircraft. This upgrade includes most of the new hardware from the APG-63(V)1, but adds an AESA to provide increased pilot situation awareness. The AESA radar has an exceptionally agile beam, providing nearly instantaneous track updates and enhanced multitarget tracking capability. The APG-63(V)2 is compatible with current F-15C weapon loads and enables pilots to take full advantage of AIM-120 AMRAAM capabilities, simultaneously guiding multiple missiles to several targets widely spaced in azimuth, elevation, or range. The further improved APG-63(V)3 AESA radar is expected to be fitted to 179 F-15C aircraft; the first upgraded aircraft was delivered in October 2010. The ZAP (Zone Acquisition Program) missile launch envelope has been integrated into the operational flight program system of all U.S. F-15 aircraft, providing dynamic launch zone and launch acceptability region information for missiles to the pilot by display cues in real-time. Operational history Introduction and early service The largest operator of the F-15 is the United States Air Force. The first Eagle, an F-15B, was delivered on 13 November 1974. In January 1976, the first Eagle destined for a combat squadron, the 555th TFS, was delivered. These initial aircraft carried the Hughes Aircraft (now Raytheon) APG-63 radar. The first kill by an F-15 was scored by Israeli Air Force ace Moshe Melnik in 1979. During Israeli raids against Palestinian factions in Lebanon in 1979–1981, F-15As reportedly downed 13 Syrian MiG-21s and two Syrian MiG-25s. Israeli F-15As and Bs participated as escorts in Operation Opera, an air strike on an Iraqi nuclear reactor. In the 1982 Lebanon War, Israeli F-15s were credited with 41 Syrian aircraft destroyed (23 MiG-21s and 17 MiG-23s, and one Aérospatiale SA.342L Gazelle helicopter). During Operation Mole Cricket 19, Israeli F-15s and F-16s together shot down 82 Syrian fighter aircraft (MiG-21s, MiG-23s, and MiG-23Ms) with no losses. Israel was the only operator to use and develop the air-to-ground abilities of the air-superiority F-15 variants, doing so because the fighter's range was well beyond other combat aircraft in the Israeli inventory in the 1980s. The first known use of F-15s for a strike mission was during Operation Wooden Leg on 1 October 1985, with six F-15Ds attacking PLO Headquarters in Tunis with two GBU-15 guided bombs per aircraft and two F-15Cs restriking the ruins with six Mk-82 unguided bombs each. This was one of the few times air-superiority F-15s (A/B/C/D models) were used in tactical strike missions. Israeli air-superiority F-15 variants have since been extensively upgraded to carry a wider range of air-to-ground armaments, including JDAM GPS-guided bombs and Popeye missile. Royal Saudi Air Force F-15C pilots reportedly shot down two Iranian Air Force F-4E Phantom IIs in a skirmish on 5 June 1984. Anti-satellite trials The ASM-135 missile was designed to be a standoff antisatellite (ASAT) weapon, with the F-15 acting as a first stage. The Soviet Union could correlate a U.S. rocket launch with a spy satellite loss, but an F-15 carrying an ASAT would blend in among hundreds of F-15 flights. From January 1984 to September 1986, two F-15As were used as launch platforms for the ASAT missile. The F-15As were modified to carry one ASM-135 on the centerline station with extra equipment within a special centerline pylon. The launch aircraft executed a Mach 1.22, 3.8 g climb at 65° to release the ASAT missile at an altitude of . The flight computer was updated to control the zoom-climb and missile release. The third test flight involved a retired P78-1 solar observatory satellite in a orbit, which was destroyed by kinetic energy. The pilot, USAF Major Wilbert D. "Doug" Pearson, became the only pilot to destroy a satellite. The ASAT program involved five test launches. The program was officially terminated in 1988. Gulf War and aftermath The USAF began deploying F-15C, D, and E model aircraft to the Persian Gulf region in August 1990 for Operations Desert Shield and Desert Storm. During the Gulf War, the F-15 accounted for 36 of the 39 air-to-air victories by U.S. Air Force against Iraqi forces. Iraq has confirmed the loss of 23 of its aircraft in air-to-air combat. The F-15C and D fighters were used in the air-superiority role, while F-15E Strike Eagles were used in air-to-ground attacks mainly at night, hunting modified Scud missile launchers and artillery sites using the LANTIRN system. According to the USAF, its F-15Cs had 34 confirmed kills of Iraqi aircraft during the 1991 Gulf War, most of them by missile fire: five Mikoyan MiG-29s, two MiG-25s, eight MiG-23s, two MiG-21s, two Sukhoi Su-25s, four Sukhoi Su-22s, one Sukhoi Su-7, six Dassault Mirage F1s, one Ilyushin Il-76 cargo aircraft, one Pilatus PC-9 trainer, and two Mil Mi-8 helicopters. Air superiority was achieved in the first three days of the conflict; many of the later kills were reportedly of Iraqi aircraft fleeing to Iran, rather than engaging American aircraft. A Strike Eagle achieved an aerial kill of an Iraqi Mi-8 helicopter with a laser-guided bomb. Two F-15Es were lost to ground fire, another was damaged on the ground by a Scud strike on King Abdulaziz Air Base. On 11 November 1990, a Royal Saudi Air Force (RSAF) pilot defected to Sudan with an F-15C fighter during Operation Desert Shield. Saudi Arabia paid US$40 million for return of the aircraft three months later. RSAF F-15s shot down two Iraqi Mirage F1s during the Operation Desert storm. One Saudi Arabian F-15C was lost to a crash during the Persian Gulf War in 1991. The IQAF claimed this fighter was part of two USAF F-15Cs that engaged two Iraqi MiG-25PDs, and was hit by an R-40 missile before crashing. They have since been deployed to support Operation Southern Watch, the patrolling of the Iraqi no-fly zones in Southern Iraq; Operation Provide Comfort in Turkey; in support of NATO operations in Bosnia, and recent air expeditionary force deployments. In 1994, two U.S. Army Sikorsky UH-60 Black Hawks were mistakenly downed by USAF F-15Cs in northern Iraq in a friendly-fire incident. USAF F-15Cs shot down four Yugoslav MiG-29s using AIM-120 and AIM-7 Radar guided missiles during NATO's 1999 intervention in Kosovo, Operation Allied Force. Structural defects All F-15s were grounded by the USAF after a Missouri Air National Guard F-15C came apart in flight and crashed on 2 November 2007. The newer F-15E fleet was later cleared for continued operations. The USAF reported on 28 November 2007 that a critical location in the upper longerons on the F-15C was the failure's suspected cause, causing the fuselage forward of the air intakes, including the cockpit and radome, to separate from the airframe. F-15A through D-model aircraft were grounded until the location received detailed inspections and repairs as needed. The grounding of F-15s received media attention as it began to place strains on the nation's air-defense efforts. The grounding forced some states to rely on their neighboring states' fighters for air-defense protection, and Alaska to depend on Canadian Forces' fighter support. On 8 January 2008, the USAF Air Combat Command (ACC) cleared a portion of its older F-15 fleet for return to flying status. It also recommended a limited return to flight for units worldwide using the affected models. The accident review board report, which was released on 10 January 2008, stated that analysis of the F-15C wreckage determined that the longeron did not meet drawing specifications, which led to fatigue cracks and finally a catastrophic failure of the remaining support structures and breakup of the aircraft in flight. In a report released on 10 January 2008, nine other F-15s were identified to have similar problems in the longeron. As a result, General John D. W. Corley stated, "the long-term future of the F-15 is in question". On 15 February 2008, ACC cleared all its grounded F-15A/B/C/D fighters for flight pending inspections, engineering reviews, and any needed repairs. ACC also recommended release of other U.S. F-15A/B/C/Ds. Later service The F-15 has a combined air-to-air combat record of 104 kills to no losses . The F-15's air superiority versions, the A/B/C/D models, have not suffered any losses to enemy action. Over half of F-15 kills have been achieved by Israeli Air Force pilots. On 16 September 2009, the last F-15A, an Oregon Air National Guard aircraft, was retired, marking the end of service for the F-15A and F-15B models in the United States. With the retirement of the F-15A and B models, the F-15C and D models are supplemented in US service by the newer F-22 Raptor. During the 2010s, USAF F-15C/Ds were regularly based overseas with the Pacific Air Forces at Kadena AB in Japan and with the U.S. Air Forces in Europe at RAF Lakenheath in the United Kingdom. Other regular USAF F-15s are operated by ACC as adversary/aggressor platforms at Nellis AFB, Nevada, and by Air Force Material Command in test and evaluation roles at Edwards AFB, California, and Eglin AFB, Florida. All remaining combat-coded F-15C/Ds are operated by the Air National Guard. The USAF is upgrading 178 F-15C/Ds with the AN/APG-63(V)3 AESA radar, and equipping other F-15s with the Joint Helmet Mounted Cueing System as of 2006. In 2007, the USAF planned to keep 178 F-15C/Ds along with 224 F-15Es in service beyond 2025. As part of the USAF's FY 2015 budget, the F-15C faced cuts or retirement in response to sequestration. In April 2017, USAF officials announced plans to retire the F-15C/D in the mid-2020s and press more F-16s into roles occupied by the F-15. In December 2018, Bloomberg Government reported that the Pentagon, not the USAF, in its 2020 budget request, will likely request US$1.2 billion for 12 new-built F-15Xs to replace older F-15Cs operated by Air National Guard units. Newly built Eagle IIs will replace F-15C/Ds, as the older airframes had an average age of 37 years by 2021; 75% were beyond their certified service lives leading to groundings from structural issues, and life extensions were deemed too expensive. 144 Eagle IIs are planned primarily to fly ANG homeland defense missions, as well as carry outsized standoff weapons in combat. The F-15E will remain in service for years to come because of the model's primary air-to-ground role and the lower number of hours on the F-15E airframes. Yemen Civil War During the Yemeni Civil War (2015-present), Houthis have used R-27T missiles modified to serve as surface-to-air missiles. A video released on 7 January 2018 also shows a modified R-27T hitting a Saudi F-15 on a forward-looking infrared camera. Houthi sources claim to have downed the F-15, although this has been disputed, as the missile apparently proximity detonated, though the F-15 continued to fly in its trajectory seemingly unaffected. Rebels later released footage showing an aircraft wreck, but serial numbers on the wreckage suggested the aircraft was a Panavia Tornado, also operated by Saudi forces. On 8 January, the Saudi admitted the loss of an aircraft but due to technical reasons. On 21 March 2018, Houthi rebels released a video where they hit and possibly shot down a Saudi F-15 in Saada province. In the video a R-27T air-to-air missile adapted for surface-to-air use was launched and appeared
more advanced Attack Super Tomcat 21). Ground attack upgrades In the 1990s, with the pending retirement of the A-6 Intruder, the F-14 air-to-ground program was resurrected. Trials with live bombs had been carried out in the 1980s; the F-14 was cleared to use basic iron bombs in 1992. During Operation Desert Storm of the Gulf War, most air-to-ground missions were left to A-7, A-6 Intruder and F/A-18 Hornet squadrons, while the F-14s focused on air defense operations. Following Desert Storm, F-14As and F-14Bs underwent upgrades to avionics and cockpit displays to enable the use of precision munitions, enhance defensive systems, and apply structural improvements. The new avionics were comparable with the F-14D; these upgraded aircraft were designated F-14A (Upgrade) and F-14B (Upgrade) respectively. By 1994, Grumman and the Navy were proposing ambitious plans for Tomcat upgrades to plug the gap between the retirement of the A-6 and the F/A-18E/F Super Hornet entering service. However, the upgrades would have taken too long to implement to meet the gap, and were priced in the billions. The U.S. Congress considered this too expensive for an interim solution. A quick, inexpensive upgrade using the Low Altitude Navigation and Targeting Infrared for Night (LANTIRN) targeting pod was devised. The LANTIRN pod provided the F-14 with a forward-looking infrared (FLIR) camera for night operations and a laser target designator to direct laser-guided bombs (LGB). Although LANTIRN is traditionally a two-pod system, an AN/AAQ-13 navigation pod with terrain-following radar and a wide-angle FLIR, along with an AN/AAQ-14 targeting pod with a steerable FLIR and a laser target designator, the decision was made to only use the targeting pod. The Tomcat's LANTIRN pod was altered and improved over the baseline configuration, such as a Global Positioning System / Inertial Navigation System (GPS-INS) capability to allow an F-14 to accurately locate itself. The pod was carried on the right wing glove pylon. The LANTIRN pod did not require changes to the F-14's own system software, but the pod was designed to operate on a MIL-STD-1553B bus not present on the F-14A or B. Consequently, Martin Marietta specially developed an interface card for LANTIRN. The Radar Intercept Officer (RIO) would receive pod imagery on a 10-inch Programmable Tactical Information Display (PTID) or another Multi-Function Display in the F-14 rear cockpit and guided LGBs using a new hand controller installed on the right side console. Initially, the hand controller replaced the RIO's TARPS control panel, meaning a Tomcat configured for LANTIRN could not carry TARPS and the reverse, but eventually a workaround was later developed to allow a Tomcat to carry LANTIRN or TARPS as needed. An upgraded LANTIRN named "LANTIRN 40K" for operations up to was introduced in 2001, followed by Tomcat Tactical Targeting (T3) and Fast Tactical Imagery (FTI), to provide precise target coordinate determination and ability to transmit images in-flight. Tomcats also added the ability to carry the GBU-38 Joint Direct Attack Munition (JDAM) in 2003, giving it the option of a variety of LGB and GPS-guided weapons. Some F-14Ds were upgraded in 2005 with a ROVER III Full Motion Video (FMV) downlink, a system that transmits real-time images from the aircraft's sensors to the laptop of Forward air controller (FAC) on the ground. Design The F-14 Tomcat was designed as both an air superiority fighter and a long-range naval interceptor, which enabled it to both serve as escort attack aircraft when armed with Sparrow missiles and fleet air defense loitering interceptor role when armed with Phoenix missiles. The F-14 was designed with a two-seat cockpit with a bubble canopy which affords all-around visibility aiding aircrew in air-to-air combat. It features variable geometry wings that swing automatically during flight. For high-speed intercept, they are swept back and they swing forward for lower speed flight. It was designed to improve on the F-4 Phantom's air combat performance in most respects. The F-14's fuselage and wings allow it to climb faster than the F-4, while the "twin-tail" empennage (dual vertical stabilizers with ventral fins on the engine nacelles) offers better stability. The F-14 is equipped with an internal 20 mm M61 Vulcan Gatling cannon mounted on the left side (unlike the Phantom, which was not equipped with an internal gun in the US Navy), and can carry AIM-54 Phoenix, AIM-7 Sparrow, and AIM-9 Sidewinder anti-aircraft missiles. The twin engines are housed in widely spaced nacelles. The flat area of the fuselage between the nacelles is used to contain fuel and avionics systems, such as the wing-sweep mechanism and flight controls, as well as weaponry since the wings are not used for carrying ordnance. By itself, the fuselage provides approximately 40 to 60 percent of the F-14's aerodynamic lifting surface depending on the wing sweep position. The lifting body characteristics of the fuselage allowed one F-14 to safely land after suffering a mid-air collision that sheared off more than half of the plane's right wing in 1991. Variable-geometry wings and aerodynamic design The F-14's wing sweep can be varied between 20° and 68° in flight, and can be automatically controlled by the Central Air Data Computer, which maintains wing sweep at the optimum lift-to-drag ratio as the Mach number varies; pilots can manually override the system if desired. When parked, the wings can be "overswept" to 75° to overlap the horizontal stabilizers to save deck space aboard carriers. In an emergency, the F-14 can land with the wings fully swept to 68°, although this presents a significant safety hazard due to greatly increased stall speed. Such an aircraft would typically be diverted from an aircraft carrier to a land base if an incident did occur. The F-14 has flown safely with an asymmetrical wing-sweep during testing, and was deemed able to land aboard a carrier if needed in an emergency. The wing pivot points are significantly spaced far apart. This has two benefits. The first is that weaponry can be fitted on a pylon on the fixed wing glove, liberating the wings from having swiveling pylons fitted, a feature which had proven to add significant drag on the F-111B. Since less of the total lifting area is variable, the center of lift moves less as the wings moves, reducing trim drag at high speed. When the wing is swept back, its thickness-to-chord ratio decreases, which allows the aircraft to satisfy the Mach 2.4 top speed required by the U.S. Navy. The body of the aircraft contributes significantly to overall lift and so the Tomcat possesses a lower wing loading than its wing area would suggest. When carrying four Phoenix missiles or other heavy stores between the engines this advantage is lost and maneuverability is reduced in those configurations. Ailerons are not fitted, with roll control being provided by wing-mounted spoilers at low speed (which are disabled if the sweep angle exceeds 57°), and by differential operation of the all-moving tailerons at high speed. Full-span slats and flaps are used to increase lift both for landing and combat, with slats being set at 17° for landing and 7° for combat, while flaps are set at 35° for landing and 10° for combat. An air bag fills up the space occupied by the swept-back wing when the wing is in the forward position and a flexible fairing on top of the wing smooths out the shape transition between the fuselage and top wing area. The twin tail layout helps in maneuvers at high angle of attack (AoA) while reducing the height of the aircraft to fit within the limited roof clearance of hangars aboard aircraft carriers. Two triangular shaped retractable surfaces, called glove vanes, were originally mounted in the forward part of the wing glove, and could be automatically extended by the flight control system at high Mach numbers. They were used to generate additional lift (force) ahead of the aircraft's center of gravity, thus helping to compensate for mach tuck at supersonic speeds. Automatically deployed at above Mach 1.4, they allowed the F-14 to pull 7.5 g at Mach 2 and could be manually extended with wings swept full aft. They were later disabled, however, owing to their additional weight and complexity. The air brakes consist of top-and-bottom extendable surfaces at the rearmost portion of the fuselage, between the engine nacelles. The bottom surface is split into left and right halves; the tailhook hangs between the two-halves, an arrangement sometimes called the "castor tail". Engines and structure The F-14 was initially equipped with two Pratt & Whitney TF30 (or JTF10A) augmented turbofan engines, each rated at 20,900 lb (93 kN) of thrust, which enabled the aircraft to attain a maximum speed of Mach 2.34. The F-14 would normally fly at a cruising speed for reduced fuel consumption, which was important for conducting lengthy patrol missions. The rectangular air inlets for the engines were equipped with movable ramps and bleed doors to meet the different airflow requirements of the engine from take-off to maximum supersonic speed. Variable nozzles were also fitted to the engine's exhaust. The performance of the TF30 engine became an object of criticism. John Lehman, Secretary of the Navy in the 1980s, told the U.S. Congress that the TF30/F-14 combination was "probably the worst engine/airframe mismatch we have had in years" and that the TF30 was "a terrible engine"; 28% of all F-14 accidents were attributed to the engine. A high frequency of turbine blade failures led to the reinforcement of the entire engine bay to limit damage from such failures. The engines also had proved to be extremely prone to compressor stalls, which could easily result in loss of control, severe yaw oscillations, and could lead to an unrecoverable flat spin. At specific altitudes, exhaust produced by missile launches could cause an engine compressor stall. This led to the development of a bleed system that temporarily blocks the frontal intake ramp and reduces engine power during missile launch. With the TF30, the F-14's overall thrust-to-weight ratio at maximum takeoff weight is around 0.56, considerably less than the F-15A's ratio of 0.85; when fitted with the General Electric F110 engine, an improved thrust-to-weight ratio of 0.73 at maximum weight and 0.88 at normal takeoff weight was achieved. Despite having large differences in thrust, the F-14A, F-14B, and later F-14D with the newer General Electric F110 engines were rated at the same top speed. The wings have a two-spar structure with integral fuel tanks. Around 25% of the structure is made of titanium, including the wing box, wing pivots, and upper and lower wing skins; this is a light, rigid, and strong material. Electron beam welding was used in the construction of the titanium parts. The landing gear is very robust, in order to withstand catapult launches (takeoffs) and recoveries (landings) needed for carrier operations. It comprises a double nosewheel and widely spaced single main wheels. There are no hardpoints on the sweeping parts of the wings, and so all the armament is fitted on the belly between the air intake ramps and on pylons under the wing gloves. Internal fuel capacity is : in each wing, in a series of tanks aft of the cockpit, and a further in two feeder tanks. It can carry two external drop tanks under the engine intake ramps. There is also an air-to-air refueling probe, which folds into the starboard nose. Avionics and flight controls The cockpit has two seats, arranged in tandem, outfitted with Martin-Baker GRU-7A rocket-propelled ejection seats, rated from zero altitude and zero airspeed up to 450 knots. The canopy is spacious, and fitted with four mirrors to effectively provide all-round visibility. Only the pilot has flight controls; the flight instruments themselves are of a hybrid analog-digital nature. The cockpit also features a head-up display (HUD) to show primarily navigational information; several other avionics systems such as communications and direction-finders are integrated into the AWG-9 radar's display. A feature of the F-14 is its Central Air Data Computer (CADC), designed by Garrett AiResearch, that forms the onboard integrated flight control system. It uses a MOSFET-based Large-Scale Integration chipset. The aircraft's large nose contains a two-person crew and several bulky avionics systems. The main element is the Hughes AN/AWG-9 X band radar; the antenna is a -wide planar array, and has integrated Identification friend or foe antennas. The AWG-9 has several search and tracking modes, such as Track while scan (TWS), Range-While-Search (RWS), Pulse-Doppler Single-Target Track (PDSTT), and Jam Angle Track (JAT); a maximum of 24 targets can be tracked simultaneously, and six can be engaged in TWS mode up to around . Cruise missiles are also possible targets with the AWG-9, which can lock onto and track small objects even at low altitude when in Pulse-Doppler mode. For the F-14D, the AWG-9 was replaced by the upgraded APG-71 radar. The Joint Tactical Information Distribution System (JTIDS)/Link 16 for data communications was added later on. The F-14 also features electronic countermeasures (ECM) and radar warning receiver (RWR) systems, chaff/flare dispensers, fighter-to-fighter data link, and a precise inertial navigation system. The early navigation system was inertial-based; point-of-origin coordinates were programmed into a navigation computer and gyroscopes would track the aircraft's every motion to calculate distance and direction from that starting point. Global Positioning System later was integrated to provide more precise navigation and redundancy in case either system failed. The chaff/flare dispensers are located on the underside of the fuselage and on the tail. The RWR system consists of several antennas on the aircraft's fuselage, which can roughly calculate both direction and distance of enemy radar users; it can also differentiate between search radar, tracking radar, and missile-homing radar. Featured in the sensor suite was the AN/ALR-23, an Infrared search and track sensor using indium antimonide detectors, mounted under the nose; however this was replaced by an optical system, Northrop's AAX-1, also designated TCS (TV Camera Set). The AAX-1 helps pilots visually identify and track aircraft, up to a range of for large aircraft. The radar and the AAX-1 are linked, allowing the one detector to follow the direction of the other. A dual infrared/optical detection system was adopted on the later F-14D. Armament The F-14 was designed to combat highly maneuverable aircraft as well as the Soviet anti-ship cruise missile and bomber (Tupolev Tu-16, Tupolev Tu-22, Tupolev Tu-22M) threats. The Tomcat was to be a platform for the AIM-54 Phoenix, but unlike the canceled F-111B, it could also engage medium- and short-range threats with other weapons. The F-14 is an air superiority fighter, not just a long-range interceptor aircraft. Over of stores can be carried for combat missions on several hardpoints under the fuselage and under the wing gloves. Commonly, this means a maximum of four Phoenixes or Sparrows on the belly stations, two Phoenixes/Sparrows on the wing hardpoints, and two Sidewinders on the wing glove hardpoints. The F-14 is also fitted with an internal 20 mm M61 Vulcan Gatling-type cannon. The Tomcat could also support MK-80 - MK-84 GBUs on its hardpoints. While in this configuration it was known to pilots as a "Bombcat". Operationally, the capability to hold up to six Phoenix missiles was never used, although early testing was conducted; there was never a threat requirement to engage six hostile targets simultaneously and the load was too heavy to safely recover aboard an aircraft carrier in the event that the missiles were not fired. During the height of Cold War operations in the late 1970s and 1980s, the typical weapon loadout on carrier-deployed F-14s was usually two AIM-54 Phoenixes, augmented by two AIM-9 Sidewinders, three AIM-7 Sparrow IIIs, a full loadout of 20 mm ammunition and two drop tanks. The Phoenix missile was used twice in combat by the U.S. Navy, both over Iraq in 1999, but the missiles did not score any kills. Iran made use of the Phoenix system, claiming dozens of kills with it during the 1980–1988 Iran–Iraq War. Due to the shortage of air-to-air missiles as a result of sanctions, Iran tried to use other missiles on the Tomcat. It attempted to integrate the Russian R-27R "Alamo" BVR missile, but was apparently unsuccessful. In 1985, Iran started Project Sky Hawk, attempting to adapt I-Hawk surface-to-air missiles, which Iran had in its inventory, for F-14s. The modified missiles were successfully tested in 1986 and one or two were used in combat, but the project was abandoned due to guidance problems. Operational history United States The F-14 began replacing the F-4 Phantom II in U.S. Navy service starting in September 1974 with squadrons VF-1 "Wolfpack" and VF-2 "Bounty Hunters" aboard and participated in the American withdrawal from Saigon. The F-14 had its first kills in U.S. Navy service on 19 August 1981 over the Gulf of Sidra in what is known as the Gulf of Sidra incident. In that engagement, two F-14s from VF-41 Black Aces were engaged by two Libyan Su-22 "Fitters". The F-14s evaded the short range heat seeking AA-2 "Atoll" missile and returned fire, downing both Libyan aircraft. U.S. Navy F-14s once again were pitted against Libyan aircraft on 4 January 1989, when two F-14s from VF-32 shot down two Libyan MiG-23 "Floggers" over the Gulf of Sidra in a second Gulf of Sidra incident. Its first sustained combat use was as a photo reconnaissance platform. The Tomcat was selected to inherit the reconnaissance mission upon the departure of the dedicated RA-5C Vigilante and RF-8G Crusaders from the fleet. A large pod called the Tactical Airborne Reconnaissance Pod System (TARPS) was developed and fielded on the Tomcat in 1981. With the retirement of the last RF-8G Crusaders in 1982, TARPS F-14s became the U.S. Navy's primary tactical reconnaissance system. One of two Tomcat squadrons per airwing was designated as a TARPS unit and received 3 TARPS capable aircraft and training for 4 TARPS aircrews. While the Tomcat was being used by Iran in combat against Iraq in its intended air superiority mission in the early 1980s, the U.S. Navy found itself flying regular daily combat missions over Lebanon to photograph activity in the Bekaa Valley. At the time, the Tomcat had been thought too large and vulnerable to be used over land, but the need for imagery was so great that Tomcat aircrews developed high-speed medium altitude tactics to deal with considerable AAA and SA-7 SAM threat in the Bekaa area. The first exposure of a Navy Tomcat to an SA-2 missile was over Somalia in April 1983 when a local battery was unaware of two Tomcats scheduled for a TARPS mission in a prelude to an upcoming international exercise in the vicinity of Berbera. An SA-2 was fired at the second Tomcat while conducting mapping profile at max conserve setting. The Tomcat aircrews spotted the missile launch and dove for the deck thereby evading it without damage. The unexpected demand for combat TARPS laid the way for high altitude sensors such as the KA-93 Long Range Optics (LOROP) to be rapidly procured for the Tomcat as well as an Expanded Chaff Adapter (ECA) to be incorporated in an AIM-54 Phoenix Rail. Commercial "Fuzz buster" type radar detectors were also procured and mounted in pairs in the forward cockpit as a stop gap solution to detect SAM radars such as the SA-6. The ultimate solution was an upgrade to the ALR-67 then being developed, but it would not be ready until the advent of the F-14A+ later in the 1980s. The participation of the F-14 in the 1991 Operation Desert Storm consisted of Combat Air Patrol (CAP) over the Red Sea and the Persian Gulf and overland missions consisting of strike escort and reconnaissance. Until the waning days of Desert Storm, in-country air superiority was tasked to USAF F-15 Eagles due to the way the Air Tasking Orders (ATO) delegated primary overland CAP stations to the F-15. The governing Rules of Engagement (ROE) also dictated a strict Identification Friend or Foe (IFF) requirement when employing Beyond Visual Range weapons such as the AIM-7 Sparrow and particularly the AIM-54 Phoenix. This hampered the Tomcat from using its most powerful weapon. Furthermore, the powerful emissions from the AWG-9 radar are detectable at great range with a radar warning receiver. Iraqi fighters routinely retreated as soon as the Tomcats "lit them up" with the AWG-9. The U.S. Navy suffered its only F-14 loss from enemy action on 21 January 1991 when BuNo 161430, an F-14A upgraded to an F-14A+, from VF-103 was shot down by an SA-2 surface-to-air missile while on an escort mission near Al Asad airbase in Iraq. Both crew members survived ejection with the pilot being rescued by USAF Special Operation Forces and the RIO being captured by Iraqi troops as a POW until the end of the war. The F-14 also achieved its final kill in US service, a Mi-8 "Hip" helicopter, with an AIM-9 Sidewinder. In 1995, F-14s from VF-14 and VF-41 participated in Operation Deliberate Force as well as Operation Allied Force in 1999, and in 1998, VF-32 and VF-213 participated in Operation Desert Fox. On 15 February 2001, the Joint Direct Attack Munition or JDAM was added to the Tomcat's arsenal. On 7 October 2001, F-14s would lead some of the first strikes into Afghanistan marking the start of Operation Enduring Freedom and the first F-14 drop of a JDAM occurred on 11 March 2002. F-14s from VF-2, VF-31, VF-32, VF-154, and VF-213 would also participate in Operation Iraqi Freedom. The F-14Ds of VF-2, VF-31, and VF-213 obtained JDAM capability in March 2003. On 10 December 2005, the F-14Ds of VF-31 and VF-213 were upgraded with a ROVER III downlink for transmitting images to a ground Forward Air Controller (FAC). The Navy decided to retire the F-14 with the F/A-18E/F Super Hornet filling the roles of fleet defense and strike formerly filled by the F-14. The last American F-14 combat mission was completed on 8 February 2006, when a pair of Tomcats landed aboard after one dropped a bomb over Iraq. During their final deployment with Theodore Roosevelt, VF-31 and VF-213 collectively completed 1,163 combat sorties totaling 6,876 flight hours, and dropped of ordnance during reconnaissance, surveillance, and close air support missions in support of Operation Iraqi Freedom. USS Theodore Roosevelt launched an F-14D, of VF-31, for the last time on 28 July 2006; piloted by Lt. Blake Coleman and Lt. Cmdr Dave Lauderbaugh as RIO. The last two F-14 squadrons, the VF-31 Tomcatters, and the VF-213 Black Lions conducted their last fly-in at Naval Air Station Oceana on 10 March 2006. The official final flight retirement ceremony was on 22 September 2006 at Naval Air Station Oceana and was flown by Lt. Cmdr. Chris Richard and Lt. Mike Petronis as RIO in a backup F-14 after the primary aircraft experienced mechanical problems. The actual last flight of an F-14 in U.S. service took place 4 October 2006, when an F-14D of VF-31 was ferried from NAS Oceana to Republic Airport on Long Island, New York. The remaining intact F-14 aircraft in the U.S. were flown to and stored at the 309th Aerospace Maintenance and Regeneration Group "Boneyard", at Davis-Monthan Air Force Base, Arizona; in 2007 the U.S. Navy announced plans to shred the remaining F-14s to prevent any components from being acquired by Iran. In August 2009, the 309th AMARG stated that the last aircraft were taken to HVF West, Tucson, Arizona for shredding. At that time only 11 F-14s remained in desert storage. Iran The sole foreign customer for the Tomcat was the Imperial Iranian Air Force, during the reign of the last Shah of Iran, Mohammad Reza Pahlavi. In the early 1970s, the Imperial Iranian Air Force (IIAF) was searching for an advanced fighter, specifically one capable of intercepting Soviet MiG-25 reconnaissance flights. After a visit of U.S. President Richard Nixon to Iran in 1972, during which Iran was offered the latest in American military technology, the IIAF selected and initiated acquisition of the F-14 Tomcat, but offered McDonnell Douglas the chance to demonstrate its F-15 Eagle. The US Navy and Grumman Corporation arranged competitive demonstrations of the Eagle and the Tomcat at Andrews AFB for the Shah and high-ranking officers, and in January 1974 Iran placed an order for 30 F-14s and 424 AIM-54 Phoenix missiles, initiating Project Persian King, worth US$300 million. A few months later, this order was increased to a total of 80 Tomcats and 714 Phoenix missiles as well as spare parts and replacement engines for 10 years, complete armament package, and support infrastructure (including construction of the Khatami Air Base near Isfahan). The first F-14 arrived in January 1976, modified only by the removal of classified avionics components, but fitted with the TF-30-414 engines. The following year 12 more were delivered. Meanwhile, training of the first groups of Iranian crews by the U.S. Navy was underway in the US; one of these conducted a successful shoot-down with a Phoenix missile of a target drone flying at . Following the overthrow of the Shah in 1979, the air force was renamed the Islamic Republic of Iran Air Force (IRIAF) and the post-revolution Interim Government of Iran canceled most Western arms orders. In 1980, an Iranian F-14 shot down an Iraqi Mil Mi-25 helicopter for its first air-to-air kill during the Iran–Iraq War (1980–1988). According to research by Tom Cooper, Iranian F-14s scored at least 50 air-to-air victories in the first six months of the war against Iraqi MiG-21s, MiG-23s, and some Su-20s/22s. During the same period, only one Iranian F-14 suffered damage after being hit by debris from a nearby MiG-21 that exploded. Iranian Tomcats were originally used as an early-warning platform assisting other less-sophisticated aircraft with targeting and defense. They were also crucial to the defense of areas deemed vital by the Iranian government, such as oil terminals on Kharg Island and industrial infrastructure in the capital Tehran. Many of these patrols had the support of Boeing 707-3J9C in-flight refueling tankers. As fighting escalated between 1982 and 1986, the F-14s gradually became more involved in the battle. They performed well, but their primary role was to intimidate the Iraqi Air Force and avoid heavy engagement to protect the fleet's numbers. Their presence was often enough to drive away opposing Iraqi fighters. The precision and effectiveness of the Tomcat's AWG-9 weapons system and AIM-54A Phoenix long-range air-to-air missiles enabled the F-14 to maintain air superiority. In December 1980, an Iraqi MiG-21bis accounted for the only confirmed kill of an F-14 by that type of aircraft. On 11 August 1984, a MiG-23ML shot down an F-14A using an R-60 missile. On 2 September 1986, a MiG-23ML using an R-24T missile mistakenly shot down an F-14 that was defecting to Iraq. On 17 January 1987, another Iranian F-14A was shot down; according to some sources it was shot down by a MiG-23ML. According to the latest data, the F-14A, which was shot down on 17 January, was destroyed by an R-40 missile fired by an Iraqi MiG-25PDS (pilot Captain Adnan Sae’ed), and the MiG-23 pilots did not claim any victory. Iraq also obtained Mirage F.1EQ fighters from France in 1981, armed with Super530F and Magic Mk.2 air-to-air missiles. The Mirage F.1 fighters were eventually responsible for four confirmed F-14 kills. The IRIAF attempted to keep 60 F-14s operational throughout the war, but reports indicate this number was reduced to 30 by 1986 with only half fully mission-capable. Based on research by Tom Cooper and Farzad Bishop, Iran claimed their F-14s shot down at least 160 Iraqi aircraft during the Iran–Iraq War, including 58 MiG-23s (15 of these are confirmed according to Cooper), 33 Mirage F1s, 23 MiG-21s, 23 Su-20s/22s, nine MiG-25s (one of these are confirmed according to Iraqi sources), five Tu-22s, two MiG-27s, one Mil Mi-24, one Dassault Mirage 5, one B-6D, one Aérospatiale Super Frelon, and two unidentified aircraft. Despite the circumstances the F-14s and their crews faced during the war against Iraq – lacking support from AWACS, AEW aircraft, and Ground Control Intercept (GCI) – the F-14 proved to be successful in combat. It achieved this in the midst of a confrontation with an enemy that was constantly upgrading its capabilities and receiving support from three major countries – France, the US, and the USSR. Part of the success is attributed to the resilient Iranian economy and IRIAF personnel. While Iraq's army claimed it shot down more than 70 F-14s, the Foreign Broadcast Information System in Washington DC estimated that Iran lost 12 to 16 F-14s during the war. Cooper writes three F-14s were shot down by Iraqi pilots and four by Iranian surface-to-air missiles (SAM). Two more Tomcats were lost in unknown circumstances during the battle, and seven crashed due to technical failure or accidents. During the war, the Iranian Air Force F-14s suffered 9 confirmed losses, one lost due to engine stall, one in unknown conditions, two by Iranian Hawk SAMs, two by MIG-23s and three were shot down by Mirage F-1s. There are also unconfirmed reports of the downing of 10 more Tomcats. On 31 August 1986, an Iranian F-14A armed with at least one AIM-54A missile defected to Iraq. Then again on 2 September 1986 another Iranian F-14A defected to Iraq. In addition, one or more of Iran's F-14A was delivered to the Soviet Union in exchange for technical assistance; at least one of its crew defected to the Soviet Union. On 24 July 2002, an Iranian F-14A confronted two Azerbaijani MiG-25s that were threatening an Iranian P-3F, securing a radar lock on one of the MiGs, which then turned away, during tensions over attempts by Azerbaijan to survey for oil in Iranian waters in the Caspian Sea. Iran had an estimated 44 F-14s in 2009 according to Combat Aircraft. Aviation Week estimated it had 19 operational F-14s in January 2013, and FlightGlobal estimated that 28 were in service in 2014. Following the US Navy's retirement of its Tomcats in 2006, Iran sought to purchase spare parts for its aircraft. In January 2007, the U.S. Department of Defense announced that sales of spare F-14 parts would be suspended over concerns of the parts ending up in Iran. In July 2007, the remaining American F-14s were shredded to ensure that any parts could not be acquired. Despite these measures, Iran managed to significantly increase its stocks of spare parts, increasing the number of airworthy Tomcats, although as it did not manage to obtain spare parts for the aircraft's weapon systems, the number of combat ready Tomcats was still low (seven in 2008). In 2010, Iran requested that the U.S. deliver the 80th F-14 that it had purchased in 1974 but never received due to the Islamic Revolution. In October 2010, an Iranian Air Force commander claimed that the country overhauls and optimizes different types of military aircraft, mentioning their Air Force has installed Iran-made radar systems on the F-14. In 2012, the Iranian Air Force's Mehrabad Overhaul Center delivered an F-14 with upgraded weapon systems with locally sourced components, designated F-14AM. Shortages of Phoenix missiles led to attempts to integrate the Russian R-27 semi-active radar-guided missile, but these proved unsuccessful. An alternative was the use of modified MIM-23 Hawk missiles to replace the Tomcat's Phoenixes and Sparrows, but as the Tomcat could only carry two Hawks, this project was also abandoned, and the Fakour-90 missile, which used the guidance system of the Hawk packaged into the airframe of the Phoenix, launched. Pre-production Fakour-90s were delivered in 2017, and a production order for 100 missiles (now designated AIM-23B) was placed in 2018, intending to replace the F-14s AIM-7E Sparrow missiles. On 26 January 2012, an Iranian F-14 crashed three minutes after takeoff. Both crew members were killed. In November 2015, Iranian F-14s had
fighter, fleet defense interceptor, and tactical aerial reconnaissance platform into the 2000s. The Low Altitude Navigation and Targeting Infrared for Night (LANTIRN) pod system was added in the 1990s and the Tomcat began performing precision ground-attack missions. In the 1980s, F-14s were used as land-based interceptors by the Islamic Republic of Iran Air Force during the Iran–Iraq War, where they saw combat against Iraqi warplanes. Iran claimed their F-14s shot down at least 160 Iraqi aircraft during the war (only 55 of these confirmed, according to historian Tom Cooper), while 16 Tomcats were lost, including seven losses to accidents. The Tomcat was retired by U.S. Navy on 22 September 2006, having been supplanted by the Boeing F/A-18E/F Super Hornet. Several retired F-14s have been put on display across the US. The F-14 remains in service with Iran's air force, having been exported to Iran under the Pahlavi regime in 1976. In November 2015, reports emerged of Iranian F-14s flying escort for Russian Tupolev Tu-95, Tu-160, and Tu-22M bombers on air strikes in Syria. Development Background Beginning in the late 1950s, the U.S. Navy sought a long-range, high-endurance interceptor to defend its carrier battle groups against long-range anti-ship missiles launched from the jet bombers and submarines of the Soviet Union. They outlined the idea of a Fleet Air Defense (FAD) aircraft with a more powerful radar and longer range missiles than the F-4 Phantom II to intercept both enemy bombers and missiles at very long range. Studies into this concept led to the Douglas F6D Missileer project of 1959, but this large subsonic aircraft appeared to have little ability to defend itself once it fired its missiles, and the project was cancelled in December 1961. The Navy was still looking for a long-range defensive aircraft, but one with higher performance than the Missileer. The Navy was directed to participate in the Tactical Fighter Experimental (TFX) program with the U.S. Air Force by Secretary of Defense Robert McNamara. McNamara wanted "joint" solutions to service aircraft needs to reduce development costs and had already directed the Air Force to buy the F-4 Phantom II, which was developed for the Navy and Marine Corps. The TFX had adequate speed, range and payload for the FAD role, but was designed as a tactical bomber that lacked the maneuverability and overall performance that the Navy expected. The Navy strenuously opposed the TFX as it feared compromises necessary for the Air Force's need for a low-level attack aircraft would adversely impact the aircraft's performance as a fighter. Their concerns were overridden, and the project went ahead as the F-111B. Lacking recent experience in naval fighters, the F-111's main contractor, General Dynamics, partnered with Grumman to provide the experience needed to develop a naval version. Weight and performance issues plagued the program, and with the F-111B in distress, Grumman began studying improvements and alternatives. In 1966, the Navy awarded Grumman a contract to begin studying advanced fighter designs. Grumman narrowed down these designs to its 303 design. The name "Tomcat" was partially chosen to pay tribute to Admiral Thomas F. Connolly, as the nickname "Tom's Cat" had already been widely used within the program during development to reflect Connolly's involvement, and now the moniker was adapted into an official name in line with the Grumman tradition of giving its fighter aircraft feline names. Changing it to Tomcat associated the aircraft with the previous Wildcat, Hellcat, Tigercat, Bearcat, Panther, Cougar, and Tiger fighters. Other names considered were Alleycat (considered inappropriate due to sexual connotations) and Seacat. VFX Through this same period, experience over Vietnam against the more agile MiG fighters demonstrated that the Phantom lacked the maneuverability needed to successfully win in any engagement. This led to the VFAX program to study new fighter aircraft that would either replace or supplant the Phantom in the fighter and ground-attack roles while the TFX worked the long-range interception role. Grumman continued work on its 303 design and offered it to the Navy in 1967, which led to fighter studies by the Navy. The company continued to refine the design into 1968. Around this time, Vice Admiral Thomas F. Connolly, Deputy Chief of Naval Operations for Air Warfare, flew the developmental F-111A variant on a flight and discovered that it had difficulty going supersonic and had poor carrier landing characteristics. He later testified before Congress about his concerns against the official Navy position and, in May 1968, Congress stopped funding for the F-111B, allowing the Navy to pursue an answer tailored to its requirements. Free to choose their own solution to the FAD requirement, VFAX ended in favor of a new design that would combine the two roles. In July 1968, the Naval Air Systems Command (NAVAIR) issued a request for proposals (RFP) for the Naval Fighter Experimental (VFX) program. VFX called for a tandem two-seat, twin-engined air-to-air fighter with a maximum speed of Mach 2.2. It would also have a built-in M61 Vulcan cannon and a secondary close air support role. The VFX's air-to-air missiles would be either six AIM-54 Phoenix or a combination of six AIM-7 Sparrow and four AIM-9 Sidewinder missiles. Bids were received from General Dynamics, Grumman, Ling-Temco-Vought, McDonnell Douglas, and North American Rockwell; four bids incorporated variable-geometry wings. F-14 McDonnell Douglas and Grumman were selected as finalists in December 1968. Grumman was selected for the contract award in January 1969. Grumman's design reused the TF30 engines from the F-111B, though the Navy planned on replacing them with the Pratt & Whitney F401-400 engines under development for the Navy, along with the related Pratt & Whitney F100 for the USAF. Though lighter than the F-111B, it was still the largest and heaviest U.S. fighter to fly from an aircraft carrier, a consequence of the requirement to carry the large AWG-9 radar and AIM-54 Phoenix missiles (from the F-111B) and an internal fuel load of . Upon winning the contract for the F-14, Grumman greatly expanded its Calverton, Long Island, New York facility for evaluating the aircraft. Much of the testing, including the first of many compressor stalls and multiple ejections, took place over Long Island Sound. To save time and avoid cancellation by the new presidential administration, the Navy skipped the prototype phase and jumped directly to full-scale development; the Air Force took a similar approach with its F-15. The F-14 first flew on 21 December 1970, just 22 months after Grumman was awarded the contract, and reached initial operational capability (IOC) in 1973. The United States Marine Corps was initially interested in the F-14 as an F-4 Phantom II replacement; going so far as to send officers to Fighter Squadron One Twenty-Four (VF-124) to train as instructors. The Marine Corps pulled out of any procurement when the development of the stores' management system for ground attack munitions was not pursued. An air-to-ground capability was not developed until the 1990s. Firing trials involved launches against simulated targets of various types, from cruise missiles to high-flying bombers. AIM-54 Phoenix missile testing from the F-14 began in April 1972. The longest single Phoenix launch was successful against a target at a range of in April 1973. Another unusual test was made on 22 November 1973, when six missiles were fired within 38 seconds at Mach 0.78 and ; four scored direct hits, one broke lock and missed, and one was declared "no test" after the radar signature augmentation in the target drone (which increased the apparent radar signature of the tiny drone to the size of a MiG-21) failed, causing the missile to break track. This gave a tested success rate of 80%, since effectively only 5 missiles were tested. This was the most expensive single test of air to air missiles ever performed at that time. Improvements and changes Over the course of production, the F-14 underwent significant upgrades in missile armament, especially with the move to full solid-state electronics, primarily allowing for better ECCM and more space for the rocket motor. The AIM-54A Phoenix active-radar air-to-air missile was upgraded with the AIM-54B (1983, limited use) and AIM-54C (1986) versions. The initial AIM-7E-4 Sparrow semi-active radar homing was upgraded to the AIM-7F in 1976, and M variant in 1982. The heat-seeking missile armament was upgraded from the AIM-9G/H to the joint Airforce/Navy missile, the AIM-9L (1977 for full production) and then the AIM-9M (1982). The Tactical Airborne Reconnaissance Pod System (TARPS) was developed in the late 1970s for the F-14. Approximately 65 F-14As and all F-14Ds were modified to carry the pod. TARPS was primarily controlled by the Radar Intercept Officer (RIO) via an extra display for observing reconnaissance data. The "TARPS Digital (TARPS-DI)" was a 1996 upgrade featuring a digital camera. The digital camera was further updated beginning in 1998 with the "TARPS Completely Digital (TARPS-CD)" configuration that also provided real-time transmission of imagery. Some of the F-14A aircraft underwent engine upgrades to the GE F110-400 in 1987. These upgraded Tomcats were redesignated F-14A+, which was later changed to F-14B in 1991. The F-14D variant was developed at the same time; it included the GE F110-400 engines with newer digital avionics systems such as a glass cockpit, and compatibility with the Link 16 secure datalink. The Digital Flight Control System (DFCS) notably improved the F-14's handling qualities when flying at a high angle of attack or in air combat maneuvering. While the F-14 had been developed as a lightweight alternative to the F-111B, the F-14 was still the heaviest and most expensive fighter of its time. VFAX was revived in the 1970s as a lower cost solution to replacing the Navy and Marine Corps's fleets of F-4s, and A-7s. VFAX was directed to review the fighters in the USAF Light Weight Fighter competition, which led to the development of the F/A-18 Hornet as roughly a midsize fighter and attack aircraft. In 1994, Congress rejected Grumman proposals to the Navy to upgrade the Tomcat beyond the D model (such as the Super Tomcat 21, the cheaper QuickStrike version, and the more advanced Attack Super Tomcat 21). Ground attack upgrades In the 1990s, with the pending retirement of the A-6 Intruder, the F-14 air-to-ground program was resurrected. Trials with live bombs had been carried out in the 1980s; the F-14 was cleared to use basic iron bombs in 1992. During Operation Desert Storm of the Gulf War, most air-to-ground missions were left to A-7, A-6 Intruder and F/A-18 Hornet squadrons, while the F-14s focused on air defense operations. Following Desert Storm, F-14As and F-14Bs underwent upgrades to avionics and cockpit displays to enable the use of precision munitions, enhance defensive systems, and apply structural improvements. The new avionics were comparable with the F-14D; these upgraded aircraft were designated F-14A (Upgrade) and F-14B (Upgrade) respectively. By 1994, Grumman and the Navy were proposing ambitious plans for Tomcat upgrades to plug the gap between the retirement of the A-6 and the F/A-18E/F Super Hornet entering service. However, the upgrades would have taken too long to implement to meet the gap, and were priced in the billions. The U.S. Congress considered this too expensive for an interim solution. A quick, inexpensive upgrade using the Low Altitude Navigation and Targeting Infrared for Night (LANTIRN) targeting pod was devised. The LANTIRN pod provided the F-14 with a forward-looking infrared (FLIR) camera for night operations and a laser target designator to direct laser-guided bombs (LGB). Although LANTIRN is traditionally a two-pod system, an AN/AAQ-13 navigation pod with terrain-following radar and a wide-angle FLIR, along with an AN/AAQ-14 targeting pod with a steerable FLIR and a laser target designator, the decision was made to only use the targeting pod. The Tomcat's LANTIRN pod was altered and improved over the baseline configuration, such as a Global Positioning System / Inertial Navigation System (GPS-INS) capability to allow an F-14 to accurately locate itself. The pod was carried on the right wing glove pylon. The LANTIRN pod did not require changes to the F-14's own system software, but the pod was designed to operate on a MIL-STD-1553B bus not present on the F-14A or B. Consequently, Martin Marietta specially developed an interface card for LANTIRN. The Radar Intercept Officer (RIO) would receive pod imagery on a 10-inch Programmable Tactical Information Display (PTID) or another Multi-Function Display in the F-14 rear cockpit and guided LGBs using a new hand controller installed on the right side console. Initially, the hand controller replaced the RIO's TARPS control panel, meaning a Tomcat configured for LANTIRN could not carry TARPS and the reverse, but eventually a workaround was later developed to allow a Tomcat to carry LANTIRN or TARPS as needed. An upgraded LANTIRN named "LANTIRN 40K" for operations up to was introduced in 2001, followed by Tomcat Tactical Targeting (T3) and Fast Tactical Imagery (FTI), to provide precise target coordinate determination and ability to transmit images in-flight. Tomcats also added the ability to carry the GBU-38 Joint Direct Attack Munition (JDAM) in 2003, giving it the option of a variety of LGB and GPS-guided weapons. Some F-14Ds were upgraded in 2005 with a ROVER III Full Motion Video (FMV) downlink, a system that transmits real-time images from the aircraft's sensors to the laptop of Forward air controller (FAC) on the ground. Design The F-14 Tomcat was designed as both an air superiority fighter and a long-range naval interceptor, which enabled it to both serve as escort attack aircraft when armed with Sparrow missiles and fleet air defense loitering interceptor role when armed with Phoenix missiles. The F-14 was designed with a two-seat cockpit with a bubble canopy which affords all-around visibility aiding aircrew in air-to-air combat. It features variable geometry wings that swing automatically during flight. For high-speed intercept, they are swept back and they swing forward for lower speed flight. It was designed to improve on the F-4 Phantom's air combat performance in most respects. The F-14's fuselage and wings allow it to climb faster than the F-4, while the "twin-tail" empennage (dual vertical stabilizers with ventral fins on the engine nacelles) offers better stability. The F-14 is equipped with an internal 20 mm M61 Vulcan Gatling cannon mounted on the left side (unlike the Phantom, which was not equipped with an internal gun in the US Navy), and can carry AIM-54 Phoenix, AIM-7 Sparrow, and AIM-9 Sidewinder anti-aircraft missiles. The twin engines are housed in widely spaced nacelles. The flat area of the fuselage between the nacelles is used to contain fuel and avionics systems, such as the wing-sweep mechanism and flight controls, as well as weaponry since the wings are not used for carrying ordnance. By itself, the fuselage provides approximately 40 to 60 percent of the F-14's aerodynamic lifting surface depending on the wing sweep position. The lifting body characteristics of the fuselage allowed one F-14 to safely land after suffering a mid-air collision that sheared off more than half of the plane's right wing in 1991. Variable-geometry wings and aerodynamic design The F-14's wing sweep can be varied between 20° and 68° in flight, and can be automatically controlled by the Central Air Data Computer, which maintains wing sweep at the optimum lift-to-drag ratio as the Mach number varies; pilots can manually override the system if desired. When parked, the wings can be "overswept" to 75° to overlap the horizontal stabilizers to save deck space aboard carriers. In an emergency, the F-14 can land with the wings fully swept to 68°, although this presents a significant safety hazard due to greatly increased stall speed. Such an aircraft would typically be diverted from an aircraft carrier to a land base if an incident did occur. The F-14 has flown safely with an asymmetrical wing-sweep during testing, and was deemed able to land aboard a carrier if needed in an emergency. The wing pivot points are significantly spaced far apart. This has two benefits. The first is that weaponry can be fitted on a pylon on the fixed wing glove, liberating the wings from having swiveling pylons fitted, a feature which had proven to add significant drag on the F-111B. Since less of the total lifting area is variable, the center of lift moves less as the wings moves, reducing trim drag at high speed. When the wing is swept back, its thickness-to-chord ratio decreases, which allows the aircraft to satisfy the Mach 2.4 top speed required by the U.S. Navy. The body of the aircraft contributes significantly to overall lift and so the Tomcat possesses a lower wing loading than its wing area would suggest. When carrying four Phoenix missiles or other heavy stores between the engines this advantage is lost and maneuverability is reduced in those configurations. Ailerons are not fitted, with roll control being provided by wing-mounted spoilers at low speed (which are disabled if the sweep angle exceeds 57°), and by differential operation of the all-moving tailerons at high speed. Full-span slats and flaps are used to increase lift both for landing and combat, with slats being set at 17° for landing and 7° for combat, while flaps are set at 35° for landing and 10° for combat. An air bag fills up the space occupied by the swept-back wing when the wing is in the forward position and a flexible fairing on top of the wing smooths out the shape transition between the fuselage and top wing area. The twin tail layout helps in maneuvers at high angle of attack (AoA) while reducing the height of the aircraft to fit within the limited roof clearance of hangars aboard aircraft carriers. Two triangular shaped retractable surfaces, called glove vanes, were originally mounted in the forward part of the wing glove, and could be automatically extended by the flight control system at high Mach numbers. They were used to generate additional lift (force) ahead of the aircraft's center of gravity, thus helping to compensate for mach tuck at supersonic speeds. Automatically deployed at above Mach 1.4, they allowed the F-14 to pull 7.5 g at Mach 2 and could be manually extended with wings swept full aft. They were later disabled, however, owing to their additional weight and complexity. The air brakes consist of top-and-bottom extendable surfaces at the rearmost portion of the fuselage, between the engine nacelles. The bottom surface is split into left and right halves; the tailhook hangs between the two-halves, an arrangement sometimes called the "castor tail". Engines and structure The F-14 was initially equipped with two Pratt & Whitney TF30 (or JTF10A) augmented turbofan engines, each rated at 20,900 lb (93 kN) of thrust, which enabled the aircraft to attain a maximum speed of Mach 2.34. The F-14 would normally fly at a cruising speed for reduced fuel consumption, which was important for conducting lengthy patrol missions. The rectangular air inlets for the engines were equipped with movable ramps and bleed doors to meet the different airflow requirements of the engine from take-off to maximum supersonic speed. Variable nozzles were also fitted to the engine's exhaust. The performance of the TF30 engine became an object of criticism. John Lehman, Secretary of the Navy in the 1980s, told the U.S. Congress that the TF30/F-14 combination was "probably the worst engine/airframe mismatch we have had in years" and that the TF30 was "a terrible engine"; 28% of all F-14 accidents were attributed to the engine. A high frequency of turbine blade failures led to the reinforcement of the entire engine bay to limit damage from such failures. The engines also had proved to be extremely prone to compressor stalls, which could easily result in loss of control, severe yaw oscillations, and could lead to an unrecoverable flat spin. At specific altitudes, exhaust produced by missile launches could cause an engine compressor stall. This led to the development of a bleed system that temporarily blocks the frontal intake ramp and reduces engine power during missile launch. With the TF30, the F-14's overall thrust-to-weight ratio at maximum takeoff weight is around 0.56, considerably less than the F-15A's ratio of 0.85; when fitted with the General Electric F110 engine, an improved thrust-to-weight ratio of 0.73 at maximum weight and 0.88 at normal takeoff weight was achieved. Despite having large differences in thrust, the F-14A, F-14B, and later F-14D with the newer General Electric F110 engines were rated at the same top speed. The wings have a two-spar structure with integral fuel tanks. Around 25% of the structure is made of titanium, including the wing box, wing pivots, and upper and lower wing skins; this is a light, rigid, and strong material. Electron beam welding was used in the construction of the titanium parts. The landing gear is very robust, in order to withstand catapult launches (takeoffs) and recoveries (landings) needed for carrier operations. It comprises a double nosewheel and widely spaced single main wheels. There are no hardpoints on the sweeping parts of the wings, and so all the armament is fitted on the belly between the air intake ramps and on pylons under the wing gloves. Internal fuel capacity is : in each wing, in a series of tanks aft of the cockpit, and a further in two feeder tanks. It can carry two external drop tanks under the engine intake ramps. There is also an air-to-air refueling probe, which folds into the starboard nose. Avionics and flight controls The cockpit has two seats, arranged in tandem, outfitted with Martin-Baker GRU-7A rocket-propelled ejection seats, rated from zero altitude and zero airspeed up to 450 knots. The canopy is spacious, and fitted with four mirrors to effectively provide all-round visibility. Only the pilot has flight controls; the flight instruments themselves are of a hybrid analog-digital nature. The cockpit also features a head-up display (HUD) to show primarily navigational information; several other avionics systems such as communications and direction-finders are integrated into the AWG-9 radar's display. A feature of the F-14 is its Central Air Data Computer (CADC), designed by Garrett AiResearch, that forms the onboard integrated flight control system. It uses a MOSFET-based Large-Scale Integration chipset. The aircraft's large nose contains a two-person crew and several bulky avionics systems. The main element is the Hughes AN/AWG-9 X band radar; the antenna is a -wide planar array, and has integrated Identification friend or foe antennas. The AWG-9 has several search and tracking modes, such as Track while scan (TWS), Range-While-Search (RWS), Pulse-Doppler Single-Target Track (PDSTT), and Jam Angle Track (JAT); a maximum of 24 targets can be tracked simultaneously, and six can be engaged in TWS mode up to around . Cruise missiles are also possible targets with the AWG-9, which can lock onto and track small objects even at low altitude when in Pulse-Doppler mode. For the F-14D, the AWG-9 was replaced by the upgraded APG-71 radar. The Joint Tactical Information Distribution System (JTIDS)/Link 16 for data communications was added later on. The F-14 also features electronic countermeasures (ECM) and radar warning receiver (RWR) systems, chaff/flare dispensers, fighter-to-fighter data link, and a precise inertial navigation system. The early navigation system was inertial-based; point-of-origin coordinates were programmed into a navigation computer and gyroscopes would track the aircraft's every motion to calculate distance and direction from that starting point. Global Positioning System later was integrated to provide more precise navigation and redundancy in case either system failed. The chaff/flare dispensers are located on the underside of the fuselage and on the tail. The RWR system consists of several antennas on the aircraft's fuselage, which can roughly calculate both direction and distance of enemy radar users; it can also differentiate between search radar, tracking radar, and missile-homing radar. Featured in the sensor suite was the AN/ALR-23, an Infrared search and track sensor using indium antimonide detectors, mounted under the nose; however this was replaced by an optical system, Northrop's AAX-1, also designated TCS (TV Camera Set). The AAX-1 helps pilots visually identify and track aircraft, up to a range of for large aircraft. The radar and the AAX-1 are linked, allowing the one detector to follow the direction of the other. A dual infrared/optical detection system was adopted on the later F-14D. Armament The F-14 was designed to combat highly maneuverable aircraft as well as the Soviet anti-ship cruise missile and bomber (Tupolev Tu-16, Tupolev Tu-22, Tupolev Tu-22M) threats. The Tomcat was to be a platform for the AIM-54 Phoenix, but unlike the canceled F-111B, it could also engage medium- and short-range threats with other weapons. The F-14 is an air superiority fighter, not just a long-range interceptor aircraft. Over of stores can be carried for combat missions on several hardpoints under the fuselage and under the wing gloves. Commonly, this means a maximum of four Phoenixes or Sparrows on the belly stations, two Phoenixes/Sparrows on the wing hardpoints, and two Sidewinders on the wing glove hardpoints. The F-14 is also fitted with an internal 20 mm M61 Vulcan Gatling-type cannon. The Tomcat could also support MK-80 - MK-84 GBUs on its hardpoints. While in this configuration it was known to pilots as a "Bombcat". Operationally, the capability to hold up to six Phoenix missiles was never used, although early testing was conducted; there was never a threat requirement to engage six hostile targets simultaneously and the load was too heavy to safely recover aboard an aircraft carrier in the event that the missiles were not fired. During the height of Cold War operations in the late 1970s and 1980s, the typical weapon loadout on carrier-deployed F-14s was usually two AIM-54 Phoenixes, augmented by two AIM-9 Sidewinders, three AIM-7 Sparrow IIIs, a full loadout of 20 mm ammunition and two drop tanks. The Phoenix missile was used twice in combat by the U.S. Navy, both over Iraq in 1999, but the missiles did not score any kills. Iran made use of the Phoenix system, claiming dozens of kills with it during the 1980–1988 Iran–Iraq War. Due to the
Aircraft Designation System and could be considered numerically to be a part of the earlier "Century series" of fighters. The assumption prior to the revealing of the aircraft to the public was that it would likely receive the F-19 designation as that number had not been used. However, there were no other aircraft to receive a "100" series number following the F-111. Soviet fighters obtained by the U.S. via various means under the Constant Peg program were given F-series numbers for their evaluation by U.S. pilots, and with the advent of the Teen Series fighters, most often Century Series designations. As with other exotic military aircraft types flying in the southern Nevada area, such as captured fighters, an arbitrary radio call of "117" was assigned. This same radio call had been used by the enigmatic 4477th Test and Evaluation Squadron, also known as the "Red Hats" or "Red Eagles", that often had flown expatriated MiG jet fighters in the area, but there was no relationship to the call and the formal F-19 designation then being considered by the Air Force. Apparently, use of the "117" radio call became commonplace and when Lockheed released its first flight manual (i.e., the Air Force "dash one" manual for the aircraft), F-117A was the designation printed on the cover. Design When the Air Force first approached Lockheed with the stealth concept, Skunk Works Director Kelly Johnson proposed a rounded design. He believed smoothly blended shapes offered the best combination of speed and stealth. However, his assistant, Ben Rich, showed that faceted-angle surfaces would provide a significant reduction in radar signature, and the necessary aerodynamic control could be provided with computer units. A May 1975 Skunk Works report, "Progress Report No. 2, High Stealth Conceptual Studies", showed the rounded concept that was rejected in favor of the flat-sided approach. The resulting unusual design surprised and puzzled experienced pilots. A Royal Air Force (RAF) pilot who flew it as an exchange officer stated that when he first saw a photograph of the still-secret F-117, he "promptly giggled and thought [to himself] 'this clearly can't fly. Early stealth aircraft were designed with a focus on minimal radar cross-section (RCS) rather than aerodynamic performance. Highly stealthy aircraft like the F-117 Nighthawk are aerodynamically unstable in all three aircraft principal axes and require constant flight corrections from a fly-by-wire (FBW) flight system to maintain controlled flight. It is shaped to deflect radar signals and is approximately the size of an F-15 Eagle. The single-seat Nighthawk is powered by two non-afterburning General Electric F404 turbofan engines. It is air refuelable and features a V-tail. The maximum speed is at high altitude, the max rate of climb is per minute, and service ceiling is . The cockpit was quite spacious, with ergonomic displays and controls, but the field of view was somewhat obstructed with a large blind spot to the rear. Avionics It has quadruple-redundant fly-by-wire flight controls. To lower development costs, the avionics, fly-by-wire systems, and other parts were derived from the General Dynamics F-16 Fighting Falcon, McDonnell Douglas F/A-18 Hornet and McDonnell Douglas F-15E Strike Eagle. The parts were originally described as spares on budgets for these aircraft, to keep the F-117 project secret. The aircraft is equipped with sophisticated navigation and attack systems integrated into a digital avionics suite. It navigates primarily by GPS and high-accuracy inertial navigation. Missions are coordinated by an automated planning system that can automatically perform all aspects of an attack mission, including weapons release. Targets are acquired by a thermal imaging infrared system, paired with a laser rangefinder/laser designator that finds the range and designates targets for laser-guided bombs. The F-117A's split internal bay can carry of ordnance. Typical weapons are a pair of GBU-10, GBU-12, or GBU-27 laser-guided bombs, two BLU-109 penetration bombs, or two Joint Direct Attack Munitions (JDAM) GPS/INS guided stand-off bombs. To maintain its low observability, the aircraft was not fitted with its own radar; not only would an active radar be detectable through its emissions, but an inactive radar would also act as a reflector of radar energy. Stealth The F-117 has a radar cross-section of about . Among the penalties for stealth are lower engine thrust due to losses in the inlet and outlet, a very low wing aspect ratio, and a high sweep angle (50°) needed to deflect incoming radar waves to the sides. With these design considerations and no afterburner, the F-117 is limited to subsonic speeds. The F-117A carries no radar, which lowers emissions and cross-section, and whether it carries any radar detection equipment remained classified as of 2008. Its faceted shape (made from 2-dimensional flat surfaces) resulted from the limitations of the 1970s-era computer technology used to calculate its radar cross-section. Later supercomputers made it possible for subsequent aircraft like the B-2 bomber to use curved surfaces while maintaining stealth, through the use of far more computational resources to perform the additional calculations. The radar-absorbent flat sheets covering the F-117A weighed almost one ton, and were held in place by glue, with the gaps between the sheets filled with a kind of putty material called "butter". An exhaust plume contributes a significant infrared signature. The F-117 reduces IR signature with a non-circular tail pipe (a slit shape) to minimize the exhaust cross-section and maximize the mixing of hot exhaust with cool ambient air. The F-117 lacks afterburners, because the hot exhaust would increase the infrared signature, and breaking the sound barrier would produce an obvious sonic boom, as well as surface heating of the aircraft skin which also increases the infrared footprint. As a result, its performance in air combat maneuvering required in a dogfight would never match that of a dedicated fighter aircraft. This was unimportant in the case of this aircraft since it was designed to be a bomber. Passive (multistatic) radar, bistatic radar and especially multistatic radar systems detect some stealth aircraft better than conventional monostatic radars, since first-generation stealth technology (such as the F-117) reflects energy away from the transmitter's line of sight, effectively increasing the radar cross section (RCS) in other directions, which the passive radars monitor. Operational history During the program's early years, from 1984 to mid-1992, the F-117A fleet was based at Tonopah Test Range Airport, Nevada, where it served under the 4450th Tactical Group. Because the F-117 was classified during this time, the unit was officially located at Nellis Air Force Base, Nevada, and equipped with A-7 Corsair II aircraft. All military personnel were permanently assigned to Nellis AFB, and most personnel and their families lived in Las Vegas. This required commercial air and trucking to transport personnel between Las Vegas and Tonopah each week. The 4450th was absorbed by the 37th Tactical Fighter Wing in 1989. In 1992, the entire fleet was transferred to Holloman Air Force Base, New Mexico, under the command of the 49th Fighter Wing. This move also eliminated the Key Air and American Trans Air contract flights to Tonopah, which flew 22,000 passenger trips on 300 flights from Nellis to Tonopah per month. The F-117 reached initial operating capability status in 1983. The Nighthawk's pilots called themselves "Bandits". Each of the 558 Air Force pilots who have flown the F-117 has a Bandit number, such as "Bandit 52", that indicates the sequential order of their first flight in the F-117. Pilots told friends and families that they flew the Northrop F-5 in aggressor squadrons against Tactical Air Command. The F-117 has been used several times in war. Its first mission was during the United States invasion of Panama in 1989. During that invasion two F-117A Nighthawks dropped two bombs on Rio Hato airfield. During the Gulf War in 1991, the F-117 flew approximately 1,300 sorties and scored direct hits on 1,600 high-value targets in Iraq over 6,905 flight hours. Leaflet drops on Iraqi forces displayed the F-117 destroying ground targets and warned "Escape now and save yourselves". Only 229 Coalition tactical aircraft could drop and designate laser-guided bombs of which 36 F-117s represented 15.7%, and only the USAF had the I-2000 bombs intended for hardened targets. So the F-117 represented 32% of all coalition aircraft that could deliver such bombs. Initial claims of its effectiveness were later found to be overstated. initial reports of F-117s hitting 80% of their targets were later scaled back to "41–60%". On the first night, they failed to hit 40% of their assigned air-defense targets, including the Air Defense Operations Center in Baghdad, and 8 such targets remained functional out of 10 that could be assessed. In their Desert Storm white paper, the USAF stated that "the F-117 was the only airplane that the planners dared risk over downtown Baghdad" and that this area was particularly well defended. (Dozens of F-16s were routinely tasked to attack Baghdad in the first few days of the war.) In fact, most of the air defenses were on the outskirts of the city and many other aircraft hit targets in the downtown area, with minimal casualties when they attacked at night like the F-117. This meant they avoided the optically aimed anti-aircraft cannon and infrared SAMs which were the biggest threat to Coalition aircraft. The aircraft was operated in secret from Tonopah for almost a decade, but after the Gulf War the aircraft moved to Holloman in 1992—however, its integration with the USAF's non-stealth "iron jets" occurred slowly. As one senior F-117A pilot later said: Because of ongoing secrecy others continued to see the aircraft as "none of their business, a stand-alone system". The F-117A and the men and women of the 49th Fighter Wing were deployed to Southwest Asia on multiple occasions. On their first deployment, with the aid of aerial refueling, pilots flew non-stop from Holloman to Kuwait, a flight of approximately 18.5 hours. Combat over Yugoslavia One F-117 (AF ser. no. 82-0806) was lost to enemy action. It was downed during a Operation Allied Force mission against the Army of Yugoslavia on 27 March 1999. The aircraft was acquired by a fire control radar at a distance of and an altitude of . SA-3s were then launched by a Yugoslav version of the Soviet Isayev S-125 "Neva" (NATO name SA-3 "Goa") anti-aircraft missile system. The launcher was run by the 3rd Battalion of the 250th Air Defence Missile Brigade under the command of Colonel Zoltán Dani. After the explosion, the aircraft became uncontrollable, forcing the pilot to eject. The pilot was recovered six hours later by a United States Air Force Pararescue team. The stealth technology from the downed F-117 may have been acquired by Russia and China, but the United States did not attempt to destroy the wreckage because senior Pentagon officials argued that its technology was already dated and no longer important to protect. American sources state that a second F-117 was targeted and damaged during the campaign, allegedly on 30 April 1999. The aircraft returned to Spangdahlem base, but it supposedly never flew again. However, the USAF continued to use the F-117 during Allied Force. Later service and retirement The F-117 was later used in the Operation Enduring Freedom in 2001 and Operation Iraqi Freedom in 2003. It was only operated by the U.S. Air Force. The loss in Serbia caused the USAF to create a subsection of their existing weapons school to improve tactics. More training was done with other units, and the F-117A began to participate in Red Flag exercises. Though advanced for its time, the F-117's stealthy faceted airframe required a large amount of maintenance and was eventually superseded by streamlined shapes produced with computer-aided design. Other weapon systems began to take on the F-117's roles, such as the F-22 Raptor gaining the ability to drop guided bombs. By 2005, the aircraft was used only for certain missions, such as if a pilot needed to verify that the correct target had been hit, or when minimal collateral damage was vital. The USAF had once planned to retire the F-117 in 2011, but Program Budget Decision 720 (PBD 720), dated 28 December 2005, proposed retiring it by October 2008 to free up an estimated $1.07 billion to
designed around stealth technology. The F-117 was based on the Have Blue technology demonstrator. The Nighthawk's maiden flight took place in 1981 at Groom Lake, Nevada, and the aircraft achieved initial operating capability status in 1983. The aircraft was shrouded in secrecy until it was revealed to the public in 1988. Of the 64 F-117s built, 59 were production versions, with the other five being prototypes. The F-117 was widely publicized for its role in the Persian Gulf War of 1991. Although it was commonly referred to as the "Stealth Fighter", it was strictly a ground-attack aircraft. F-117s took part in the conflict in Yugoslavia, where one was shot down and another damaged by surface-to-air missiles (SAM) in 1999. The U.S. Air Force retired the F-117 in April 2008, primarily due to the fielding of the F-22 Raptor. Despite the type's official retirement, a portion of the fleet has been kept in airworthy condition, and Nighthawks have been observed flying since 2009. Development Background and Have Blue In 1964, Pyotr Ufimtsev, a Soviet mathematician, published a seminal paper titled Method of Edge Waves in the Physical Theory of Diffraction in the journal of the Moscow Institute for Radio Engineering, in which he showed that the strength of the radar return from an object is related to its edge configuration, not its size. Ufimtsev was extending theoretical work published by the German physicist Arnold Sommerfeld. Ufimtsev demonstrated that he could calculate the radar cross-section across a wing's surface and along its edge. The obvious and logical conclusion was that even a large aircraft could reduce its radar signature by exploiting this principle. However, the resulting design would make the aircraft aerodynamically unstable, and the state of computer technology in the early 1960s could not provide the kinds of flight computers which would later allow aircraft such as the F-117 and B-2 Spirit to stay airborne. By the 1970s, when Lockheed analyst Denys Overholser found Ufimtsev's paper, computers and software had advanced significantly, and the stage was set for the development of a stealth airplane. The F-117 was born after the Vietnam War, where increasingly sophisticated Soviet surface-to-air missiles (SAMs) had downed heavy bombers. The heavy losses inflicted by Soviet-made SAMs upon the Israeli air force in the 1973 Yom Kippur war also contributed to a 1974 Defense Science Board assessment that in case of a conflict in Central Europe, air defenses would likely prevent NATO air strikes on targets in Eastern Europe. It was a black project, an ultra-secret program for much of its life; very few people in the Pentagon knew the program even existed. The project began in 1975 with a model called the "Hopeless Diamond" (a wordplay on the Hope Diamond because of its appearance). The following year, the Defense Advanced Research Projects Agency (DARPA) issued Lockheed Skunk Works a contract to build and test two Stealth Strike Fighters, under the code name "Have Blue". These subscale aircraft incorporated jet engines of the Northrop T-38A, fly-by-wire systems of the F-16, landing gear of the A-10, and environmental systems of the C-130. By bringing together existing technology and components, Lockheed built two demonstrators under budget, at $35 million for both aircraft, and in record time. The maiden flight of the demonstrators occurred on 1 December 1977. Although both aircraft crashed during the demonstration program, test data proved positive. The success of Have Blue led the government to increase funding for stealth technology. Much of that increase was allocated towards the production of an operational stealth aircraft, the Lockheed F-117A, under the program code name "Senior Trend". Senior Trend The decision to produce the F-117A was made on 1 November 1978, and a contract was awarded to Lockheed Advanced Development Projects, popularly known as the Skunk Works, in Burbank, California. The program was led by Ben Rich, with Alan Brown as manager of the project. Rich called on Bill Schroeder, a Lockheed mathematician, and Overholser, a computer scientist, to exploit Ufimtsev's work. The three designed a computer program called "Echo", which made it possible to design an airplane with flat panels, called facets, which were arranged so as to scatter over 99% of a radar's signal energy "painting" the aircraft. The first YF-117A, serial number 79-10780, made its maiden flight from Groom Lake ("Area 51"), Nevada, on 18 June 1981, only 31 months after the full-scale development decision. The first production F-117A was delivered in 1982, and operational capability was achieved in October 1983. The 4450th Tactical Group stationed at Nellis Air Force Base, Nevada, were tasked with the operational development of the early F-117, and between 1981 (prior to the arrival of the first models) and 1989 they used LTV A-7 Corsair IIs for training, to bring all pilots to a common flight training baseline and later as chase planes for F-117A tests. The F-117 was secret for much of the 1980s. Many news articles discussed what they called a "F-19" stealth fighter, and the Testor Corporation produced a very inaccurate scale model. When an F-117 crashed in Sequoia National Forest in July 1986, killing the pilot and starting a fire, the Air Force established restricted airspace. Armed guards prohibited entry, including firefighters, and a helicopter gunship circled the site. All F-117 debris was replaced with remains of a F-101A Voodoo crash stored at Area 51. When another fatal crash in October 1987 occurred inside Nellis, the military again provided little information to the press. The Air Force denied the existence of the aircraft until 10 November 1988, when Assistant Secretary of Defense J. Daniel Howard displayed a grainy photograph at a Pentagon press conference, disproving the many inaccurate rumors about the shape of the "F-19". After the announcement pilots could fly the F-117 during daytime and no longer needed to be associated with the A-7, flying the T-38 supersonic trainer for travel and training instead. In April 1990, two F-117 aircraft were flown into Nellis, arriving during daylight and publicly displayed to a crowd of tens of thousands. Five Full Scale Development (FSD) aircraft were built, designated "YF-117A". The last of 59 production F-117s were delivered on 3 July 1990. As the Air Force has stated, "Streamlined management by Aeronautical Systems Center, Wright-Patterson AFB, Ohio, combined breakthrough stealth technology with concurrent development and production to rapidly field the aircraft ... The F-117A program demonstrates that a stealth aircraft can be designed for reliability and maintainability." Designation The operational aircraft was officially designated "F-117A". Most modern U.S. military aircraft use post-1962 designations in which the designation "F" is usually an air-to-air fighter, "B" is usually a bomber, "A" is usually a ground-attack aircraft, etc. (Examples include the F-15, the B-2 and the A-6.) The F-117 is primarily an attack aircraft, so its "F" designation is inconsistent with the DoD system. This is an inconsistency that has been repeatedly employed by the U.S. Air Force with several of its attack aircraft since the late 1950s, including the Republic F-105 Thunderchief and General Dynamics F-111 Aardvark. A televised documentary quoted project manager Alan Brown as saying that Robert J. Dixon, a four-star Air Force general who was the head of Tactical Air Command felt that the top-notch USAF fighter pilots required to fly the new aircraft were more easily attracted to an aircraft with an "F" designation for fighter, as opposed to a bomber ("B") or attack ("A") designation. The designation "F-117" seems to indicate that it was given an official designation prior to the 1962 U.S. Tri-Service Aircraft Designation System and could be considered numerically to be a part of the earlier "Century series" of fighters. The assumption prior to the revealing of the aircraft to the public was that it would likely receive the F-19 designation as that number had not been used. However, there were no other aircraft to receive a "100" series number following the F-111. Soviet fighters obtained by the U.S. via various means under the Constant Peg program were given F-series numbers for their evaluation by U.S. pilots, and with the advent of the Teen Series fighters, most often Century Series designations. As with other exotic military aircraft types flying in the southern Nevada area, such as captured fighters, an arbitrary radio call of "117" was assigned. This same radio call had been used by the enigmatic 4477th Test and Evaluation Squadron, also known as the "Red Hats" or "Red Eagles", that often had flown expatriated MiG jet fighters in the area, but there was no relationship to the call and the formal F-19 designation then being considered by the Air Force. Apparently, use of the "117" radio call became commonplace and when Lockheed released its first flight manual (i.e., the Air Force "dash one" manual for the aircraft), F-117A was the designation printed on the cover. Design When the Air Force first approached Lockheed with the stealth concept, Skunk Works Director Kelly Johnson proposed a rounded design. He believed smoothly blended shapes offered the best combination of speed and stealth. However, his assistant, Ben Rich, showed that faceted-angle surfaces would provide a significant reduction in radar signature, and the necessary aerodynamic control could be provided with computer units. A May 1975 Skunk Works report, "Progress Report No. 2, High Stealth Conceptual Studies", showed the rounded concept that was rejected in favor of the flat-sided approach. The resulting unusual design surprised and puzzled experienced pilots. A Royal Air Force (RAF) pilot who flew it as an exchange officer stated that when he first saw a photograph of the still-secret F-117, he "promptly giggled and thought [to himself] 'this clearly can't fly. Early stealth aircraft were designed with a focus on minimal radar cross-section (RCS) rather than aerodynamic performance. Highly stealthy aircraft like the F-117 Nighthawk are aerodynamically unstable in all three aircraft principal axes and require constant flight corrections from a fly-by-wire (FBW) flight system to maintain controlled flight. It is shaped to deflect radar signals and is approximately the size of an F-15 Eagle. The single-seat Nighthawk is powered by two non-afterburning General Electric F404 turbofan engines. It is air refuelable and features a V-tail. The maximum speed is at high altitude, the max rate of climb is per minute, and service ceiling is . The cockpit was quite spacious, with ergonomic displays and controls, but the field of view was somewhat obstructed with a large blind spot to the rear. Avionics It has quadruple-redundant fly-by-wire flight controls. To lower development costs, the avionics, fly-by-wire systems, and other parts were derived from the General Dynamics F-16 Fighting Falcon, McDonnell Douglas F/A-18 Hornet and McDonnell Douglas F-15E Strike Eagle. The parts were originally described as spares on budgets for these aircraft, to keep the F-117 project secret. The aircraft is equipped with sophisticated navigation and attack systems integrated into a digital avionics suite. It navigates primarily by GPS and high-accuracy inertial navigation. Missions are coordinated by an automated planning system that can automatically perform all aspects of an attack mission, including weapons release. Targets are acquired by a thermal imaging infrared system, paired with a laser rangefinder/laser designator that finds the range and designates targets for laser-guided bombs. The F-117A's split internal bay can carry of ordnance. Typical weapons are a pair of GBU-10, GBU-12, or GBU-27 laser-guided bombs, two BLU-109 penetration bombs, or two Joint Direct Attack Munitions (JDAM) GPS/INS guided stand-off bombs. To maintain its low observability, the aircraft was not fitted with its own radar; not only would an active radar be detectable through its emissions, but an inactive radar would also act as a reflector of radar energy. Stealth The F-117 has a radar cross-section of about . Among the penalties for stealth are lower engine thrust due to losses in the inlet and outlet, a very low wing aspect ratio, and a high sweep angle (50°) needed to deflect incoming radar waves to the sides. With these design considerations and no afterburner, the F-117 is limited to subsonic speeds. The F-117A carries no radar, which lowers emissions and cross-section, and whether it carries any radar detection equipment remained classified as of 2008. Its faceted shape (made from 2-dimensional flat surfaces) resulted from the limitations of the 1970s-era computer technology used to calculate its radar cross-section. Later supercomputers made it possible for subsequent aircraft like the B-2 bomber to use curved surfaces while maintaining stealth, through the use of far more computational resources to perform the additional calculations. The radar-absorbent flat sheets covering the F-117A weighed almost one ton, and were held in place by glue, with the gaps between the sheets filled with a kind of putty material called "butter". An exhaust plume contributes a significant infrared signature. The F-117 reduces IR signature with a non-circular tail pipe (a slit shape) to minimize the exhaust cross-section and maximize the mixing of hot exhaust with cool ambient air. The F-117 lacks afterburners, because the hot exhaust would increase the infrared signature, and breaking the sound barrier would produce an obvious sonic boom, as well as surface heating of the aircraft skin which also increases the infrared footprint. As a result, its performance in air combat maneuvering required in a dogfight would never match that of a dedicated fighter aircraft. This was unimportant in the case of this aircraft since it was designed to be a bomber. Passive (multistatic) radar, bistatic radar and especially multistatic radar systems detect some stealth aircraft better than conventional monostatic radars, since first-generation stealth technology (such as the F-117) reflects energy away from the transmitter's line of sight, effectively increasing the radar cross section (RCS) in other directions, which the passive radars monitor. Operational history During the program's early years, from 1984 to mid-1992, the F-117A fleet was based at Tonopah Test Range Airport, Nevada, where it served under the 4450th Tactical Group. Because the F-117 was classified during this time, the unit was officially located at Nellis Air Force Base, Nevada, and equipped with A-7 Corsair II aircraft. All military personnel were permanently assigned to Nellis AFB, and most personnel
are numerous photos in evidence of Corsairs, of various manufacturers and models, on islands in the Pacific without tailhooks installed. Fighter-bomber Corsairs also served well as fighter-bombers in the Central Pacific and the Philippines. By early 1944, Marine pilots were beginning to exploit the type's considerable capabilities in the close-support role in amphibious landings. Charles Lindbergh flew Corsairs with the Marines as a civilian technical advisor for United Aircraft Corporation in order to determine how best to increase the Corsair's payload and range in the attack role and to help evaluate future viability of single- versus twin-engine fighter design for Vought. Lindbergh managed to get the F4U into the air with of bombs, with a bomb on the centerline and a bomb under each wing. In the course of such experiments, he performed strikes on Japanese positions during the battle for the Marshall Islands. By the beginning of 1945, the Corsair was a full-blown "mudfighter", performing strikes with high-explosive bombs, napalm tanks, and HVARs. It proved versatile, able to operate everything from Bat glide bombs to Tiny Tim rockets. The aircraft was a prominent participant in the fighting for the Palaus, Iwo Jima, and Okinawa. Navy service In November 1943, while operating as a shore-based unit in the Solomon Islands, VF-17 reinstalled the tail hooks so its F4Us could land and refuel while providing top cover over the task force participating in the carrier raid on Rabaul. The squadron's pilots landed, refueled, and took off from their former home, Bunker Hill and on 11 November 1943. Twelve USMC F4U-1s arrived at Henderson Field (Guadalcanal) on 12 February 1943. The U.S. Navy did not get into combat with the type until September 1943. The work done by the Royal Navy's FAA meant those models qualified the type for U.S. carrier operations first. The U.S. Navy finally accepted the F4U for shipboard operations in April 1944, after the longer oleo strut was fitted, which eliminated the tendency to bounce. The first US Corsair unit to be based effectively on a carrier was the pioneer USMC squadron VMF-124, which joined Essex in December 1944. They were accompanied by VMF-213. The increasing need for fighter protection against kamikaze attacks resulted in more Corsair units being moved to carriers. Sortie, kill and loss figures U.S. figures compiled at the end of the war indicate that the F4U and FG flew 64,051 operational sorties for the U.S. Marines and U.S. Navy through the conflict (44% of total fighter sorties), with only 9,581 sorties (15%) flown from carrier decks. F4U and FG pilots claimed 2,140 air combat victories against 189 losses to enemy aircraft, for an overall kill ratio of over 11:1. While this gave the Corsair the lowest loss rate of any fighter of the Pacific War, this was due in part to operational circumstances; it primarily faced air-to-air combat in the Solomon Islands and Rabaul campaigns (as well as at Leyte and for kamikaze interception), but as operations shifted north and its mission shifted to ground attack the aircraft saw less exposure to enemy aircraft, while other fighter types were exposed to more air combat. Against the best Japanese opponents, the aircraft claimed a 12:1 kill ratio against the Mitsubishi A6M Zero and 6:1 against the Nakajima Ki-84, Kawanishi N1K-J, and Mitsubishi J2M combined during the last year of the war. The Corsair bore the brunt of U.S. fighter-bomber missions, delivering of bombs during the war (70% of total bombs dropped by U.S. fighters during the war). Corsair losses in World War II were as follows: Aerial combat: 189 Enemy ground and shipboard anti-aircraft fire: 349 Operational losses during combat missions: 230 Operational losses during non-combat flights: 692 Destroyed aboard ships or on the ground: 164 Royal Navy Enhancement for carrier suitability In the early days of World War II, Royal Navy fighter requirements had been based on cumbersome two-seat designs, such as the fighter/dive-bomber Blackburn Skua (and its turreted derivative the Blackburn Roc) and the fighter/reconnaissance Fairey Fulmar, since it was expected that they would encounter only long-range bombers or flying boats and that navigation over featureless seas required the assistance of a radio operator/navigator.The Royal Navy hurriedly adopted higher-performance single-seat aircraft such as the Hawker Sea Hurricane and the less robust Supermarine Seafire alongside, but neither aircraft had sufficient range to operate at a distance from a carrier task force. The Corsair was welcomed as a more robust and versatile alternative. In November 1943, the Royal Navy received its first batch of 95 Vought F4U-1s, which were given the designation "Corsair [Mark] I". The first squadrons were assembled and trained on the U.S. East Coast and then shipped across the Atlantic. The Royal Navy put the Corsair into carrier operations immediately. They found its landing characteristics dangerous, suffering a number of fatal crashes, but considered the Corsair to be the best option they had. In Royal Navy service, because of the limited hangar deck height in several classes of British carrier, many Corsairs had their outer wings "clipped" by to clear the deckhead. The change in span brought about the added benefit of improving the sink rate, reducing the F4U's propensity to "float" in the final stages of landing. Despite the clipped wings and the shorter decks of British carriers, Royal Navy aviators found landing accidents less of a problem than they had been to U.S. Navy aviators, thanks to the curved approach they used: British units solved the landing visibility problem by approaching the carrier in a medium left-hand turn, which allowed the pilot to keep the carrier's deck in view over the anhedral in the left wing root. This technique was later adopted by U.S. Navy and Marine fliers for carrier use of the Corsair. The Royal Navy developed a number of modifications to the Corsair that made carrier landings more practical. Among these were a bulged canopy (similar to the Malcolm Hood), raising the pilot's seat , and wiring shut the cowl flaps across the top of the engine compartment, diverting oil and hydraulic fluid spray around the sides of the fuselage. Deployment The Royal Navy initially received 95 "birdcage" F4U-1s from Vought which were designated Corsair Mk I in Fleet Air Arm service. Next from Vought came 510 "blown-canopy" F4U-1A/-1Ds, which were designated Corsair Mk II (the final 150 equivalent to the F4U-1D, but not separately designated in British use). 430 Brewster Corsairs (334 F3A-1 and 96 F3A-1D), more than half of Brewster's total production, were delivered to Britain as the Corsair Mk III. 857 Goodyear Corsairs (400 FG-1/-1A and 457 FG-1D) were delivered and designated Corsair Mk IV. The Mk IIs and Mk IVs were the only versions to be used in combat. The Royal Navy cleared the F4U for carrier operations well before the U.S. Navy and showed that the Corsair Mk II could be operated with reasonable success even from escort carriers. It was not without problems; one was excessive wear of the arrester wires, due both to the weight of the Corsair and the understandable tendency of the pilots to stay well above the stalling speed. A total of 2,012 Corsairs were supplied to the United Kingdom. Fleet Air Arm (FAA) units were created and equipped in the United States, at Quonset Point or Brunswick and then shipped to war theaters aboard escort carriers. The first FAA Corsair unit was 1830 NAS, created on the first of June 1943, and soon operating from . At the end of the war, 18 FAA squadrons were operating the Corsair. British Corsairs served both in Europe and in the Pacific. The first, and also most important, European operations were the series of attacks (Operation Tungsten) in April, July, and August 1944 on the , for which Corsairs from and provided fighter cover. It appears the Corsairs did not encounter aerial opposition on these raids. From April 1944, Corsairs from the British Pacific Fleet took part in several major air raids in South East Asia beginning with Operation Cockpit, an attack on Japanese targets at Sabang island, in the Dutch East Indies. In July and August 1945, Corsair naval squadrons 1834, 1836, 1841, and 1842 took part in a series of strikes on the Japanese mainland, near Tokyo. These squadrons operated from Victorious and Formidable. On 9 August 1945, days before the end of the war, Corsairs from Formidable attacked Shiogama harbor on the northeast coast of Japan. Royal Canadian Navy Volunteer Reserve pilot, Lieutenant Robert Hampton Gray, of 1841 Squadron was hit by flak but pressed home his attack on the Japanese destroyer escort Amakusa, sinking it with a bomb but crashing into the sea. He was posthumously awarded Canada's last Victoria Cross, becoming the second fighter pilot of the war to earn a Victoria Cross as well as the final Canadian casualty of World War II. FAA Corsairs originally fought in a camouflage scheme with a Dark Slate Grey/Extra Dark Sea Grey disruptive pattern on top and Sky undersides, but were later painted overall dark blue. As it had become imperative for all Allied aircraft in the Pacific Theater of World War II to abandon all use of any "red devices" in their national insignia — to prevent any chance of misidentification with Japanese military aircraft, all of which bore the circular, all-red Hinomaru insignia (nicknamed a "meatball" by Allied aircrew) that is still in use to this day, the United States removed all areas of red color (specifically removing the red center to the roundel) and removed any sort of national fin/rudder markings, which at that time had seven horizontal red stripes, from the American national aircraft insignia scheme by 6 May 1942. The British did likewise, starting with a simple paintover with white paint, of their "Type C" roundel's red center, at about the time the U.S. Navy removed the red-center from their roundel. Later, a shade of slate gray center color replaced the white color on the earlier roundel. When the Americans starting using the added white bars to either side of their blue/white star roundel on 28 June 1943; SEAC British Corsairs, most all of which still used the earlier blue/white Type C roundel with the red center removed, added similar white bars to either side of their blue-white roundels to emulate the Americans. In all, out of 18 carrier-based squadrons, eight saw combat, flying intensive ground attack/interdiction operations and claiming 47.5 aircraft shot down. At the end of World War II, under the terms of the Lend-Lease agreement, the aircraft had to be paid for or to be returned to the U.S. As the UK did not have the means to pay for them, the Royal Navy Corsairs were pushed overboard into the sea in Moreton Bay off Brisbane, Australia. Royal New Zealand Air Force Equipped with obsolete Curtiss P-40s, Royal New Zealand Air Force (RNZAF) squadrons in the South Pacific performed impressively, in particular in the air-to-air role. The American government accordingly decided to give New Zealand early access to the Corsair, especially as it was not initially being used from carriers. Some 424 Corsairs equipped 13 RNZAF squadrons, including No. 14 Squadron RNZAF and No. 15 Squadron RNZAF, replacing Douglas SBD Dauntlesses as well as P-40s. Most of the F4U-1s were assembled by Unit 60 with a further batch assembled and flown at RNZAF Hobsonville. In total there were 336 F4U-1s and 41 F4U-1Ds used by the RNZAF during the Second World War. Sixty FG-1Ds arrived late in the war. The first deliveries of lend-lease Corsairs began in March 1944 with the arrival of 30 F4U-1s at the RNZAF Base Depot Workshops (Unit 60) on the island of Espiritu Santo in the New Hebrides. From April, these workshops became responsible for assembling all Corsairs for the RNZAF units operating the aircraft in the South West Pacific; and a Test and Despatch flight was set up to test the aircraft after assembly. By June 1944, 100 Corsairs had been assembled and test flown. The first squadrons to use the Corsair were 20 and 21 Squadrons on Espiritu Santo, operational in May 1944. The organization of the RNZAF in the Pacific and New Zealand meant that only the pilots and a small staff belonged to each squadron (the maximum strength on a squadron was 27 pilots): squadrons were assigned to several Servicing Units (SUs, composed of 5–6 officers, 57 NCOs, 212 airmen) which carried out aircraft maintenance and operated from fixed locations: hence F4U-1 NZ5313 was first used by 20 Squadron/1 SU on Guadalcanal in May 1944; 20 Squadron was then relocated to 2 SU on Bougainville in November. In all there were ten front line SUs plus another three based in New Zealand. Because each of the SUs painted its aircraft with distinctive markings and the aircraft themselves could be repainted in several different color schemes, the RNZAF Corsairs were far less uniform in appearance than their American and FAA contemporaries. By late 1944, the F4U had equipped all ten Pacific-based fighter squadrons of the RNZAF. By the time the Corsairs arrived, there were very few Japanese aircraft left in New Zealand's allocated sectors of the Southern Pacific, and despite the RNZAF squadrons extending their operations to more northern islands, they were primarily used for close support of American, Australian, and New Zealand soldiers fighting the Japanese. At the end of 1945, all Corsair squadrons but one (No. 14) were disbanded. That last squadron was based in Japan, until the Corsair was retired from service in 1947. No. 14 Squadron was given new FG-1Ds and in March 1946 transferred to Iwakuni, Japan as part of the British Commonwealth Occupation Force. Only one airworthy example of the 437 aircraft procured survives: FG-1D NZ5648/ZK-COR, owned by the Old Stick and Rudder Company at Masterton, New Zealand. Captured Corsairs On 18 July 1944, a British Corsair F4U-1A, JT404 of 1841 Naval Air Squadron, was involved in anti-submarine patrol from HMS Formidable en route to Scapa Flow after the Operation Mascot attack on the German battleship Tirpitz. It flew in company with a Fairey Barracuda. Due to technical problems the Corsair made an emergency landing in a field on Hamarøy north of Bodø, Norway. The pilot, Lt Mattholie, was taken prisoner and the aircraft captured undamaged. Luftwaffe interrogators failed to get the pilot to explain how to fold the wings so as to transport the aircraft to Narvik. The Corsair was ferried by boat for further investigation. Later the Corsair was taken to Germany and listed as one of the captured enemy aircraft (Beuteflugzeug) based at Erprobungsstelle Rechlin, the central German military aviation test facility and the equivalent of the Royal Aircraft Establishment, for 1944 under repair. This was probably the only Corsair captured by the Germans. In 1945, U.S. forces captured an F4U Corsair near the Kasumigaura flight school. The Japanese had repaired it, covering damaged parts on the wing with fabric and using spare parts from crashed F4Us. It seems Japan captured two force-landed Corsairs fairly late in the war and may have even tested one in flight. Korean War During the Korean War, the Corsair was used mostly in the close-support role. The AU-1 Corsair was developed from the F4U-5 and was a ground-attack version which normally operated at low altitudes: as a consequence the Pratt & Whitney R-2800-83W engine used a single-stage, manually controlled supercharger, rather than the two-stage automatic supercharger of the -5. The versions of the Corsair used in Korea from 1950 to 1953 were the AU-1, F4U-4B, -4P, and -5N and 5-NL. There were dogfights between F4Us and Soviet-built Yakovlev Yak-9 fighters early in the war, but when the enemy introduced the Mikoyan-Gurevich MiG-15, the Corsair was outmatched. On 10 September 1952, a MiG-15 made the mistake of getting into a turning contest with a Corsair piloted by Marine Captain Jesse G. Folmar, with Folmar shooting the MiG down with his four 20 mm cannon. In turn, four MiG-15s shot down Folmar minutes later; Folmar bailed out and was quickly rescued with little injury. F4U-5N and -5NL Corsair night fighters were used to attack enemy supply lines, including truck convoys and trains, as well as interdicting night attack aircraft such as the Polikarpov Po-2 "Bedcheck Charlies", which were used to harass United Nations forces at night. The F4Us often operated with the help of C-47 'flare ships' which dropped hundreds of 1,000,000 candlepower magnesium flares to illuminate the targets. For many operations detachments of U.S. Navy F4U-5Ns were posted to shore bases. The leader of one such unit, Lieutenant Guy Bordelon of VC-3 Det D (Detachment D), off , became the Navy's only ace in the war, in addition to being the only American ace in Korea that used a piston engined aircraft. Bordelon, nicknamed "Lucky Pierre", was credited with three Lavochkin La-9s or La-11s and two Yakovlev Yak-18s between 29 June and 16/17 July 1952. Navy and Marine Corsairs were credited with a total of 12 enemy aircraft. More generally, Corsairs performed attacks with cannons, napalm tanks, various iron bombs, and unguided rockets. The 5 inch HVAR was a reliable standby; sturdy Soviet-built armor proved resistant to the HVAR's punch, which led to a new shaped charge antitank warhead being developed. The result was called the "Anti-Tank Aircraft Rocket (ATAR)." The "Tiny Tim" was also used in combat, with two under the belly. Lieutenant Thomas J. Hudner, Jr., flying an F4U-4 of VF-32 off , was awarded the Medal of Honor for crash landing his Corsair in an attempt to rescue his squadron mate, Ensign Jesse L. Brown, whose aircraft had been forced down by antiaircraft fire near Changjin. Brown, who did not survive the incident, was the U.S. Navy's first African American naval aviator. Aéronavale After the war, the French Navy had an urgent requirement for a powerful carrier-borne close-air support aircraft to operate from the French Navy's four aircraft carriers that it acquired in the late 1940s (Two former U.S. Navy and two Royal Navy carriers were transferred). Secondhand US Navy Douglas SBD Dauntless dive-bombers of Flotille 3F and 4F were used to attack enemy targets and support ground forces in the First Indochina War. Former US Grumman F6F-5 Hellcats and Curtiss SB2C Helldivers were also used for close air support. A new and more capable aircraft was needed. First Indochina War The last production Corsair was the 'F4U-7, which was built specifically for the French naval air arm, the Aéronavale. The XF4U-7 prototype did its test flight on 2 July 1952 with a total of 94 F4U-7s built for the French Navy's Aéronavale (79 in 1952, 15 in 1953), with the last of the batch, the final Corsair built, rolled out on 31 January 1953. The F4U-7s were actually purchased by the U.S. Navy and passed on to the Aéronavale through the U.S. Military Assistance Program (MAP). The French Navy used its F4U-7s during the second half of the First Indochina War in the 1950s (12.F, 14.F, 15.F Flotillas), where they were supplemented by at least 25 ex-USMC AU-1s passed on to the French in 1954, after the end of the Korean War. On 15 January 1953, Flotille 14F, based at Karouba Air Base near Bizerte in Tunisia, became the first Aéronavale unit to receive the F4U-7 Corsair. Flotille 14F pilots arrived at Da Nang on 17 April 1954, but without their aircraft. The next day, the carrier USS Saipan delivered 25 war-weary ground attack ex-USMC AU-1 Corsairs (flown by VMA-212 at the end of the Korean War). During three months operating over Dien Bien Phu and Viêt-Nam, the Corsairs flew 959 combat sorties totaling 1,335 flight hours. They dropped some 700 tons of bombs and fired more than 300 rockets and 70,000 20 mm rounds. Six aircraft were damaged and two shot down by Viet Minh. In September 1954, F4U-7 Corsairs were loaded aboard and brought back to France in November. The surviving Ex-USMC AU-1s were taken to the Philippines and returned to the U.S. Navy. In 1956, Flotille 15F returned to South Vietnam, equipped with F4U-7 Corsairs. Suez Crisis The 14.F and 15.F Flotillas also took part in the Anglo-French-Israeli seizure of the Suez Canal in October 1956, code-named Operation Musketeer. The Corsairs were painted with yellow and black recognition stripes for this operation. They were tasked with destroying Egyptian Navy ships at Alexandria but the presence of U.S. Navy ships prevented the successful completion of the mission. On 3 November 16 F4U-7s attacked airfields in the Delta, with one Corsair shot down by anti-aircraft fire. Two more Corsairs were damaged when landing back on the carriers. The Corsairs engaged in Operation Musketeer dropped a total of 25 tons of bombs, and fired more than 500 rockets and 16,000 20mm rounds. Algerian War As soon as they disembarked from the carriers that took part in Operation Musketeer, at the end of 1956, all three Corsair Flotillas moved to Telergma and Oran airfields in Algeria from where they provided CAS and helicopter escort. They were joined by the new "Flottille 17F", established at Hyères in April 1958. French F4U-7 Corsairs (with some borrowed AU-1s) of the 12F, 14F, 15F, and 17F Flotillas conducted missions during the Algerian War between 1955 and 1962. Between February and March 1958, several strikes and CAS missions were launched from , the only carrier involved in the Algeria War. Tunisia France recognized Tunisian independence and sovereignty in 1956 but continued to station military forces at Bizerte and planned to extend the airbase. In 1961, Tunisia asked France to evacuate the base. Tunisia imposed a blockade on the base on 17 July, hoping to force its evacuation. This resulted in a battle between militiamen and the French military which lasted three days. French paratroopers, escorted by Corsairs of the 12F and 17F Flotillas, were dropped to reinforce the base and the Aéronavale launched air strikes on Tunisian troops and vehicles between 19–21 July, carrying out more than 150 sorties. Three Corsairs were damaged by ground fire. French experiments In early 1959, the Aéronavale experimented with the Vietnam War-era SS.11 wire-guided anti-tank missile on F4U-7 Corsairs. The 12.F pilots trained for this experimental program were required to manually pilot the missile at approximatively two kilometers from the target on low altitude with a joystick using the right hand while keeping track of a flare on its tail, and piloting the aircraft using the left hand; an exercise that could be very tricky in a single-seat aircraft under combat conditions. Despite reportedly effective results during the tests, this armament was not used with Corsairs during the ongoing Algerian War. The Aéronavale used 163 Corsairs (94 F4U-7s and 69 AU-1s), the last of them used by the Cuers-based 14.F Flotilla were out of service by September 1964, with some surviving for museum display or as civilian warbirds. By the early 1960s, two new modern aircraft carriers, and , had entered service with the French Navy and with them a new generation of jet-powered combat aircraft. "Football War" Corsairs flew their final combat missions in 1969 during the "Football War" between Honduras and El Salvador, in service with both air forces. The conflict was allegedly triggered, though not really caused, by a disagreement over a soccer (association football) match. Captain Fernando Soto of the Honduran Air Force shot down three Salvadoran Air Force aircraft on 17 July 1969. In the morning he shot down a Cavalier Mustang, killing the pilot. In the afternoon, he shot down two FG-1s; the pilot of the second aircraft may have bailed out, but the third exploded in the air, killing the pilot. These combats were the last ones among propeller-driven aircraft in the world and also making Soto the only pilot credited with three kills in an American continental war. El Salvador did not shoot down any Honduran aircraft. At the outset of the Football War, El Salvador enlisted the assistance of several American pilots with P-51 and F4U experience. Bob Love (a Korean war ace), Chuck Lyford, Ben Hall, and Lynn Garrison are believed to have flown combat missions, but it has never been confirmed. Lynn Garrison had purchased F4U-7 133693 from the French MAAG office when he retired from French naval service in 1964. It was registered N693M and was later destroyed in a 1987 crash in San Diego, California. Legacy The Corsair entered service in 1942. Although designed as a carrier fighter, initial operation from carrier decks proved to be troublesome. Its low-speed handling was tricky due to the left wing stalling before the right wing. This factor, together with poor visibility over the long nose (leading to one of its nicknames, "The Hose Nose"), made landing a Corsair on a carrier a difficult task. For these reasons, most Corsairs initially went to Marine Corps squadrons which operated off land-based runways, with some early Goodyear-built examples (designated FG-1A) being built with fixed wings. The USMC aviators welcomed the Corsair with open arms as its performance was far superior to the contemporary Brewster F2A Buffalo and Grumman F4F-3 and -4 Wildcat. Moreover, the Corsair was able to outperform the primary Japanese fighter, the A6M Zero. While the Zero could outturn the F4U at low speed, the Corsair was faster and could outclimb and outdive the A6M. This performance advantage, combined with the ability to take severe punishment, meant a pilot could place an enemy aircraft in the killing zone of the F4U's six .50 (12.7 mm) M2 Browning machine guns and keep him there long enough to inflict major damage. The 2,300 rounds carried by the Corsair gave just under 30 seconds of fire from each gun. Beginning in 1943, the Fleet Air Arm (FAA) also received Corsairs and flew them successfully from Royal Navy carriers in combat with the British Pacific Fleet and in Norway. These were clipped-wing Corsairs, the wingtips shortened to clear the lower overhead height of RN carriers. FAA also developed a curving landing approach to overcome the F4U's deficiencies. Infantrymen nicknamed the Corsair "The Sweetheart of the Marianas" and "The Angel of Okinawa" for its roles in these campaigns. Among Navy and Marine aviators, the aircraft was nicknamed "Ensign Eliminator" and "Bent-Wing Eliminator" because it required many more hours of flight training to master than other Navy carrier-borne aircraft. It was also called simply "U-bird" or "Bent Wing Bird". Although Allied World War II sources frequently make the claim that the Japanese called the Corsair the "Whistling Death", Japanese sources do not support this, and it was mainly known as the Sikorsky. The Corsair has been named the official aircraft of Connecticut due to its multiple connections to Connecticut businesses including airframe manufacturer Vought-Sikorsky Aircraft, engine manufacturer Pratt & Whitney, and propeller manufacturer Hamilton Standard. Variants During World War II, Corsair production expanded beyond Vought to include Brewster and Goodyear models. Allied forces flying the aircraft in World War II included the Fleet Air Arm and the Royal New Zealand Air Force. Eventually, more than 12,500 F4Us would be built, comprising 16 separate variants. F4U-1 (called Corsair Mk I by the Fleet Air Arm): The first production version of the Corsair with the distinctive "birdcage" canopy and low seating position. The differences over the XF4U-1 were as follows: Six Browning AN/M2 machine guns were fitted in the outer wing panels, displacing fuel tanks. An enlarged fuel tank was fitted ahead of the cockpit, in place of the fuselage armament. The cockpit was moved back by . The fuselage was lengthened by . The more powerful R-2800-8 Double Wasp was fitted. of armor plate was fitted to the cockpit and a thick bullet-resistant glass panel was fitted behind the curved windscreen. IFF transponder equipment was fitted. Curved transparent panels were incorporated into the fuselage behind the pilot's headrest. The flaps were changed from deflector type to NACA slotted. The span of the ailerons was increased while that of the flaps was decreased. One auxiliary fuel cell (not a self-sealing type) was installed in each wing leading edge, just outboard of the guns. The Royal Navy's Fleet Air Arm received 95 Vought F4U-1s. These were all early "birdcage" Corsairs. Vought also built a single F4U-1 two-seat trainer; the Navy showed no interest. F4U-1A (called Corsair Mk II by the Fleet Air Arm): Mid-to-late production Corsairs incorporated a new, taller, wider canopy with only two frames — very close to what the Malcolm hood did for British fighter aircraft — along with a simplified windscreen; the new canopy design allowed the semi-elliptical turtledeck "flank" windows to be omitted. The designation F4U-1A to differentiate these Corsairs from earlier "birdcage" variants was allowed to be used internally by manufacturers. The pilot's seat was raised which, combined with the new canopy and a lengthening of the tailwheel strut, allowed the pilot better visibility over the long nose. In addition to these changes, the bombing window under the cockpit was omitted. These Corsairs introduced a -long stall strip just outboard of the gun ports on the right wing leading edge and improved undercarriage oleo struts which eliminated bouncing on landing, making these the first truly "carrier capable" F4Us. Three hundred and sixty F4U-1As were delivered to the Fleet Air Arm. In British service, they were modified with "clipped" wings ( was cut off each wingtip) for use on British aircraft carriers, although the Royal Navy
J. Hudner, Jr., flying an F4U-4 of VF-32 off , was awarded the Medal of Honor for crash landing his Corsair in an attempt to rescue his squadron mate, Ensign Jesse L. Brown, whose aircraft had been forced down by antiaircraft fire near Changjin. Brown, who did not survive the incident, was the U.S. Navy's first African American naval aviator. Aéronavale After the war, the French Navy had an urgent requirement for a powerful carrier-borne close-air support aircraft to operate from the French Navy's four aircraft carriers that it acquired in the late 1940s (Two former U.S. Navy and two Royal Navy carriers were transferred). Secondhand US Navy Douglas SBD Dauntless dive-bombers of Flotille 3F and 4F were used to attack enemy targets and support ground forces in the First Indochina War. Former US Grumman F6F-5 Hellcats and Curtiss SB2C Helldivers were also used for close air support. A new and more capable aircraft was needed. First Indochina War The last production Corsair was the 'F4U-7, which was built specifically for the French naval air arm, the Aéronavale. The XF4U-7 prototype did its test flight on 2 July 1952 with a total of 94 F4U-7s built for the French Navy's Aéronavale (79 in 1952, 15 in 1953), with the last of the batch, the final Corsair built, rolled out on 31 January 1953. The F4U-7s were actually purchased by the U.S. Navy and passed on to the Aéronavale through the U.S. Military Assistance Program (MAP). The French Navy used its F4U-7s during the second half of the First Indochina War in the 1950s (12.F, 14.F, 15.F Flotillas), where they were supplemented by at least 25 ex-USMC AU-1s passed on to the French in 1954, after the end of the Korean War. On 15 January 1953, Flotille 14F, based at Karouba Air Base near Bizerte in Tunisia, became the first Aéronavale unit to receive the F4U-7 Corsair. Flotille 14F pilots arrived at Da Nang on 17 April 1954, but without their aircraft. The next day, the carrier USS Saipan delivered 25 war-weary ground attack ex-USMC AU-1 Corsairs (flown by VMA-212 at the end of the Korean War). During three months operating over Dien Bien Phu and Viêt-Nam, the Corsairs flew 959 combat sorties totaling 1,335 flight hours. They dropped some 700 tons of bombs and fired more than 300 rockets and 70,000 20 mm rounds. Six aircraft were damaged and two shot down by Viet Minh. In September 1954, F4U-7 Corsairs were loaded aboard and brought back to France in November. The surviving Ex-USMC AU-1s were taken to the Philippines and returned to the U.S. Navy. In 1956, Flotille 15F returned to South Vietnam, equipped with F4U-7 Corsairs. Suez Crisis The 14.F and 15.F Flotillas also took part in the Anglo-French-Israeli seizure of the Suez Canal in October 1956, code-named Operation Musketeer. The Corsairs were painted with yellow and black recognition stripes for this operation. They were tasked with destroying Egyptian Navy ships at Alexandria but the presence of U.S. Navy ships prevented the successful completion of the mission. On 3 November 16 F4U-7s attacked airfields in the Delta, with one Corsair shot down by anti-aircraft fire. Two more Corsairs were damaged when landing back on the carriers. The Corsairs engaged in Operation Musketeer dropped a total of 25 tons of bombs, and fired more than 500 rockets and 16,000 20mm rounds. Algerian War As soon as they disembarked from the carriers that took part in Operation Musketeer, at the end of 1956, all three Corsair Flotillas moved to Telergma and Oran airfields in Algeria from where they provided CAS and helicopter escort. They were joined by the new "Flottille 17F", established at Hyères in April 1958. French F4U-7 Corsairs (with some borrowed AU-1s) of the 12F, 14F, 15F, and 17F Flotillas conducted missions during the Algerian War between 1955 and 1962. Between February and March 1958, several strikes and CAS missions were launched from , the only carrier involved in the Algeria War. Tunisia France recognized Tunisian independence and sovereignty in 1956 but continued to station military forces at Bizerte and planned to extend the airbase. In 1961, Tunisia asked France to evacuate the base. Tunisia imposed a blockade on the base on 17 July, hoping to force its evacuation. This resulted in a battle between militiamen and the French military which lasted three days. French paratroopers, escorted by Corsairs of the 12F and 17F Flotillas, were dropped to reinforce the base and the Aéronavale launched air strikes on Tunisian troops and vehicles between 19–21 July, carrying out more than 150 sorties. Three Corsairs were damaged by ground fire. French experiments In early 1959, the Aéronavale experimented with the Vietnam War-era SS.11 wire-guided anti-tank missile on F4U-7 Corsairs. The 12.F pilots trained for this experimental program were required to manually pilot the missile at approximatively two kilometers from the target on low altitude with a joystick using the right hand while keeping track of a flare on its tail, and piloting the aircraft using the left hand; an exercise that could be very tricky in a single-seat aircraft under combat conditions. Despite reportedly effective results during the tests, this armament was not used with Corsairs during the ongoing Algerian War. The Aéronavale used 163 Corsairs (94 F4U-7s and 69 AU-1s), the last of them used by the Cuers-based 14.F Flotilla were out of service by September 1964, with some surviving for museum display or as civilian warbirds. By the early 1960s, two new modern aircraft carriers, and , had entered service with the French Navy and with them a new generation of jet-powered combat aircraft. "Football War" Corsairs flew their final combat missions in 1969 during the "Football War" between Honduras and El Salvador, in service with both air forces. The conflict was allegedly triggered, though not really caused, by a disagreement over a soccer (association football) match. Captain Fernando Soto of the Honduran Air Force shot down three Salvadoran Air Force aircraft on 17 July 1969. In the morning he shot down a Cavalier Mustang, killing the pilot. In the afternoon, he shot down two FG-1s; the pilot of the second aircraft may have bailed out, but the third exploded in the air, killing the pilot. These combats were the last ones among propeller-driven aircraft in the world and also making Soto the only pilot credited with three kills in an American continental war. El Salvador did not shoot down any Honduran aircraft. At the outset of the Football War, El Salvador enlisted the assistance of several American pilots with P-51 and F4U experience. Bob Love (a Korean war ace), Chuck Lyford, Ben Hall, and Lynn Garrison are believed to have flown combat missions, but it has never been confirmed. Lynn Garrison had purchased F4U-7 133693 from the French MAAG office when he retired from French naval service in 1964. It was registered N693M and was later destroyed in a 1987 crash in San Diego, California. Legacy The Corsair entered service in 1942. Although designed as a carrier fighter, initial operation from carrier decks proved to be troublesome. Its low-speed handling was tricky due to the left wing stalling before the right wing. This factor, together with poor visibility over the long nose (leading to one of its nicknames, "The Hose Nose"), made landing a Corsair on a carrier a difficult task. For these reasons, most Corsairs initially went to Marine Corps squadrons which operated off land-based runways, with some early Goodyear-built examples (designated FG-1A) being built with fixed wings. The USMC aviators welcomed the Corsair with open arms as its performance was far superior to the contemporary Brewster F2A Buffalo and Grumman F4F-3 and -4 Wildcat. Moreover, the Corsair was able to outperform the primary Japanese fighter, the A6M Zero. While the Zero could outturn the F4U at low speed, the Corsair was faster and could outclimb and outdive the A6M. This performance advantage, combined with the ability to take severe punishment, meant a pilot could place an enemy aircraft in the killing zone of the F4U's six .50 (12.7 mm) M2 Browning machine guns and keep him there long enough to inflict major damage. The 2,300 rounds carried by the Corsair gave just under 30 seconds of fire from each gun. Beginning in 1943, the Fleet Air Arm (FAA) also received Corsairs and flew them successfully from Royal Navy carriers in combat with the British Pacific Fleet and in Norway. These were clipped-wing Corsairs, the wingtips shortened to clear the lower overhead height of RN carriers. FAA also developed a curving landing approach to overcome the F4U's deficiencies. Infantrymen nicknamed the Corsair "The Sweetheart of the Marianas" and "The Angel of Okinawa" for its roles in these campaigns. Among Navy and Marine aviators, the aircraft was nicknamed "Ensign Eliminator" and "Bent-Wing Eliminator" because it required many more hours of flight training to master than other Navy carrier-borne aircraft. It was also called simply "U-bird" or "Bent Wing Bird". Although Allied World War II sources frequently make the claim that the Japanese called the Corsair the "Whistling Death", Japanese sources do not support this, and it was mainly known as the Sikorsky. The Corsair has been named the official aircraft of Connecticut due to its multiple connections to Connecticut businesses including airframe manufacturer Vought-Sikorsky Aircraft, engine manufacturer Pratt & Whitney, and propeller manufacturer Hamilton Standard. Variants During World War II, Corsair production expanded beyond Vought to include Brewster and Goodyear models. Allied forces flying the aircraft in World War II included the Fleet Air Arm and the Royal New Zealand Air Force. Eventually, more than 12,500 F4Us would be built, comprising 16 separate variants. F4U-1 (called Corsair Mk I by the Fleet Air Arm): The first production version of the Corsair with the distinctive "birdcage" canopy and low seating position. The differences over the XF4U-1 were as follows: Six Browning AN/M2 machine guns were fitted in the outer wing panels, displacing fuel tanks. An enlarged fuel tank was fitted ahead of the cockpit, in place of the fuselage armament. The cockpit was moved back by . The fuselage was lengthened by . The more powerful R-2800-8 Double Wasp was fitted. of armor plate was fitted to the cockpit and a thick bullet-resistant glass panel was fitted behind the curved windscreen. IFF transponder equipment was fitted. Curved transparent panels were incorporated into the fuselage behind the pilot's headrest. The flaps were changed from deflector type to NACA slotted. The span of the ailerons was increased while that of the flaps was decreased. One auxiliary fuel cell (not a self-sealing type) was installed in each wing leading edge, just outboard of the guns. The Royal Navy's Fleet Air Arm received 95 Vought F4U-1s. These were all early "birdcage" Corsairs. Vought also built a single F4U-1 two-seat trainer; the Navy showed no interest. F4U-1A (called Corsair Mk II by the Fleet Air Arm): Mid-to-late production Corsairs incorporated a new, taller, wider canopy with only two frames — very close to what the Malcolm hood did for British fighter aircraft — along with a simplified windscreen; the new canopy design allowed the semi-elliptical turtledeck "flank" windows to be omitted. The designation F4U-1A to differentiate these Corsairs from earlier "birdcage" variants was allowed to be used internally by manufacturers. The pilot's seat was raised which, combined with the new canopy and a lengthening of the tailwheel strut, allowed the pilot better visibility over the long nose. In addition to these changes, the bombing window under the cockpit was omitted. These Corsairs introduced a -long stall strip just outboard of the gun ports on the right wing leading edge and improved undercarriage oleo struts which eliminated bouncing on landing, making these the first truly "carrier capable" F4Us. Three hundred and sixty F4U-1As were delivered to the Fleet Air Arm. In British service, they were modified with "clipped" wings ( was cut off each wingtip) for use on British aircraft carriers, although the Royal Navy had been successfully operating the Corsair Mk I since 1 June 1943 when No. 1830 Squadron NAS was commissioned and assigned to HMS Illustrious. F4U-1s in many USMC squadrons had their arrester hooks removed. Additionally, an experimental R-2800-8W engine with water injection was fitted on one of the late F4U-1As. After satisfactory results, many F4U-1As were fitted with the new powerplant. The aircraft carried in the main fuel tank, located in front of the cockpit, as well as an unarmored, non-self-sealing fuel tank in each wing. This version of the Corsair was the first to be able to carry a drop tank under the center-section. With drop tanks fitted, the fighter had a maximum ferry range of just over . F3A-1 and F3A-1D (called Corsair Mk III by the Fleet Air Arm): This was the designation for Brewster-built F4U-1. Labor troubles delayed production, and the Navy ordered the company's contract terminated; they folded soon after. Poor quality wing fittings meant that these aircraft were red-lined for speed and prohibited from aerobatics after several lost their wings. None of the Brewster-built Corsairs reached front line units. 430 Brewster Corsairs (334 F3A-1 and 96 F3A-1D), more than half of Brewster's total production, were delivered to the Fleet Air Arm. FG-1A and FG-1D (called Corsair Mk IV by the Fleet Air Arm): This was the designation for Corsairs that were license-built by Goodyear, to the same specifications as Vought's Corsairs. The first Goodyear built FG-1 flew in February 1943 and Goodyear began delivery of FG-1 Corsairs in April 1943. The company continued production until the end of the war and delivered 4,007 FG-1 series Corsairs, including sixty FG-1Ds to the RNZAF and 857 (400 FG-1 and FG-1A, and 457 FG-1D) to the Royal Navy as Corsair Mk IVs. F4U-1B: This was an unofficial post-war designation used to identify F4U-1s modified for Fleet Air Arm use. F4U-1C: The prototype F4U-1C, appeared in August 1943 and was based on an F4U-1. A total of 200 of this variant were built from July to November 1944; all were based on the F4U-1D and were built in parallel with that variant. Intended for ground-attack as well as fighter missions, the F4U-1C was similar to the F4U-1D but its six machine guns were replaced by four AN/M2 cannons with 231 rounds of ammunition per gun. The F4U-1C was introduced to combat during 1945, most notably in the Okinawa campaign. The firepower of 20 mm was highly appreciated. It was believed that the 20 mm cannon was more effective for all types of combat work than the .50 caliber machine gun. However, despite the superior firepower, many navy pilots preferred .50 caliber machine guns in air combat due to jam and freezing problems of the 20mm cannons. These problems were reduced as the ordnance crews gained experience until the performance of the guns compared favorably with the .50 caliber, but freezing problems remained at until gun heaters were installed. F4U-1D (called Corsair Mk II by the Fleet Air Arm): This variant was introduced in April 1944, and was built in parallel with the F4U-1C. It had the new R-2800-8W Double Wasp engine equipped with water injection. This change gave the aircraft up to more power, which, in turn, increased performance. Speed was increased from to . Due to the U.S. Navy's need for fighter-bombers, it had a payload of rockets (double the -1A's) carried on permanent launching rails, as well as twin pylons for bombs or drop tanks. These modifications caused extra drag, but the additional fuel carried by the two drop tanks would still allow the aircraft to fly relatively long missions despite heavy, un-aerodynamic loads. A single piece "blown" clear-view canopy was adopted as standard equipment for the -1D model, and all later F4U production aircraft. 150 F4U-1D were delivered to the Fleet Air Arm. F4U-1P: A rare photo reconnaissance variant. XF4U-2: Special night fighter variant, equipped with two auxiliary fuel tanks. F4U-2: Experimental conversion of the F4U-1 Corsair into a carrier-borne nightfighter, armed with five machine guns (the outboard, right gun was deleted), and fitted with Airborne Intercept (AI) radar set in a radome placed outboard on the starboard wing. Since Vought was preoccupied with more important projects, only 32 were converted from existing F4U-1s by the Naval Aircraft Factory and another two by front line units. The type saw combat with VF(N)-101 aboard and USS Intrepid in early 1944, VF(N)-75 in the Solomon Islands, and VMF(N)-532 on Tarawa. XF4U-3: Experimental aircraft built to hold different engines in order to test the Corsair's performance with a variety of power plants. This variant never entered service. Goodyear also contributed a number of airframes, designated FG-3, to the project. A single sub-variant XF4U-3B with minor modifications was also produced for the FAA. XF4U-4: New engine and cowling. F4U-4: The last variant to see action during World War II. Deliveries to the U.S. Navy of the F4U-4 began in early 1945. It had the dual-stage-supercharged -18W engine. When the cylinders were injected with the water/alcohol mixture, power was boosted to . The aircraft required an air scoop under the nose and the unarmored wing fuel tanks of capacities were removed for better maneuverability at the expense of maximum range. The propeller was changed to a four blade type. Maximum speed was increased to and climb rate to over as opposed to the of the F4U-1A. The "4-Hog" retained the original armament and had all the external load (i.e., drop tanks, bombs) capabilities of the F4U-1D. The windscreen was now flat bullet-resistant glass to avoid optical distortion, a change from the curved Plexiglas windscreens with the internal plate glass of the earlier Corsairs. Vought also tested the two F4U-4Xs (BuNos 49763 and 50301, prototypes for the new R2800) with fixed wingtip tanks (the Navy showed no interest) and an Aeroproducts six-blade contraprop (not accepted for production). F4U-4B: 300 F4U-4s ordered with alternate gun armament of four AN/M3 cannon. F4U-4E and F4U-4N: Developed late in WWII, these nightfighters featured radar radomes projecting from the right wingtip. The -4E was fitted with the APS-4 search radar, while the -4N was fitted with the APS-6 type. In addition, these aircraft were often refitted with four 20 mm M2 cannons similar to the F4U-1C. Though these variants would not see combat during WWII, the nightfighter variants would see great use during the Korean war. F4U-4K: Experimental drone. F4U-4P: F4U-4 equivalent to the -1P, a rare photo reconnaissance variant. XF4U-5: New engine cowling, other extensive changes. F4U-5: A 1945 design modification of the F4U-4, first flown on 21 December 1945, was intended to increase the F4U-4 Corsair's overall performance and incorporate many Corsair pilots' suggestions. It featured a more powerful Pratt and Whitney R-2800-32(E) engine with a two-stage supercharger, rated at a maximum of . Other improvements included automatic blower controls, cowl flaps, intercooler doors, and oil cooler for the engine, spring tabs for the elevators and rudder, a completely modernized cockpit, a completely retractable tail wheel, and heated cannon bays and pitot head. The cowling was lowered two degrees to help with forward visibility, but perhaps most striking as the first variant to feature all-metal wings (223 units produced). Maximum speed was and max rate of climb at sea level 4,850 feet per minute. F4U-5N: Radar equipped version (214 units produced) F4U-5NL: Winterized version (72 units produced, 29 modified from F4U-5Ns (101 total)). Fitted with rubber de-icing boots on the leading edge of the wings and tail. F4U-5P: Long-range photo-reconnaissance version (30 units produced) F4U-6: Re-designated AU-1, this was a ground-attack version produced for the U.S. Marine Corps. F4U-7 : AU-1 airframe with -18w engine developed for the French Navy. FG-1E: Goodyear FG-1 with radar equipment. FG-1K: Goodyear FG-1 as drone. FG-3: Turbosupercharger version converted from FG-1D. FG-4: Goodyear F4U-4, never delivered. AU-1: U.S. Marines attack variant with extra armor to protect the pilot and fuel tank, and the oil coolers relocated inboard to reduce vulnerability to ground fire. The supercharger was simplified as the design was intended for low-altitude operation. Extra racks were also fitted. Fully loaded for combat the AU-1 weighed 20% more than a fully loaded F4U-4, and was capable of carrying 8,200 lb of bombs. The AU-1 had a maximum speed of 238 miles per hour at 9,500 ft, when loaded with 4,600 lb of bombs and a 150-gallon drop-tank. When loaded with eight rockets and two 150-gallon drop-tanks, maximum speed was 298 mph at 19,700 ft. When not carrying external loads, maximum speed was 389 mph at 14,000 ft. First produced in 1952 and used in Korea, and retired in 1957. Re-designated from F4U-6. Super Corsair variants In March 1944, Pratt & Whitney requested an F4U-1 Corsair from Vought Aircraft for evaluation of their new P&W R-4360, Wasp Major 4-row 28-cylinder "corncob" radial engine. The F2G-1 and F2G-2 were significantly different aircraft. F2G-1 featured a manual folding wing and propeller, while the F2G-2 had hydraulic operated folding wings, propeller, and carrier arresting hook for carrier use. There were five pre-production XF2G-1s: BuNo 14691, 14692, 14693 (Race 94), 14694 (Race 18), and 14695. There were ten production F2Gs: Five F2G-1s BuNo 88454 (Museum of Flight in Seattle, Washington), 88455, 88456, 88457 (Race 84), and 88458 (Race 57) and five F2G-2s BuNo 88459, 88460, 88461, 88462, and 88463 (Race 74). Five F2Gs were sold as surplus and went on to racing success after the war (indicated by the "Race" number after the BuNo), winning the Thompson trophy races in 1947 and 1949. The only surviving F2G-1s are BuNos 88454 and 88458 (Race 57). The only surviving F2G-2 was BuNo 88463 (Race 74). It was destroyed in a crash September 2012 after having a full restoration completed in July 2011. Operators Argentine Navy Argentine Naval Aviation operated 26 F4U-5/5N/5NL Corsairs from 1956 to 1968 from ARA Independencia Air Force of El Salvador operated 5 F4U and 20 FG-1D from 1957 to 1976 French Navy operated 69 AU-1 and 94 F4U-7 from 1954 to 1964 Aeronavale Flottille 17F Honduran Air Force operated 19 from 1956 to 1979 Royal New Zealand Air Force operated 368 F4U-1 and 60 FG-1D from 1944 to 1949 No. 14 Squadron RNZAF No. 15 Squadron RNZAF No. 16 Squadron RNZAF No. 17 Squadron RNZAF No. 18 Squadron RNZAF No. 19 Squadron RNZAF No. 20 Squadron RNZAF No. 21 Squadron RNZAF No. 22 Squadron RNZAF No. 23 Squadron RNZAF No. 24 Squadron RNZAF No. 25 Squadron RNZAF No. 26 Squadron RNZAF Royal Navy Fleet Air Arm operated 2,012 Corsairs of all types during World War II, including 95 Corsair I (F4U-1), 510 Corsair II (F4U-1A), 430 Corsair III (F3A-1D), and 977 Corsair IV (FG-1D) United States Navy United States Marine Corps Surviving aircraft According to the FAA there are 45 privately owned F4Us in the U.S. Specifications (F4U-4) Notable appearances in media See also References Notes Citations Bibliography Abrams, Richard. F4U Corsair at War. London: Ian Allan Ltd., 1977. . Angelucci, Enzo with Peter M. Bowers. The American Fighter. New York: Orion Books, 1985. . Barber, S.B. Naval Aviation Combat Statistics: World War II, OPNAV-P-23V No. A129. Washington, D.C.: Air Branch, Office of Naval Intelligence, 1946. Bell, Dana. F4U-1 Corsair, Vol. 1, Aircraft Pictorial, No. 7. Tucson: Classic Warships Publishing, 2014. . Blackburn, Tom. The Jolly Rogers. New York: Orion Books, 1989. . Bowman, Martin W. Vought F4U Corsair. Marlborough, UK: The Crowood Press Ltd., 2002. . Campbell, Douglas E. "BuNos! Disposition of World War II USN, USMC, USCG Aircraft Listed by Bureau Number". 2012. Condon, John Pomeroy. Corsairs and Flattops: Marine Carrier Warfare, 1944–1945. Annapolis, Maryland: Naval Institute Press, 1998. . D’Angina, James. "Vought F4U Corsair". Oxford, UK: Osprey Publishing, 2014. Dean, Francis H. America's Hundred Thousand. Atglen, Pennsylvania: Schiffer Publishing Ltd., 1997. . Donald, David, ed. American Warplanes of World War II. London: Aerospace Publishing. 1995. . Dorr, Robert F. "Marine Air, The History of the Flying Leathernecks in Words and Photos" New York: Berkley Publishing Group, 2005. . Drendel, Lou. U.S. Navy Carrier Fighters of World War II. Carrollton, Texas: Squadron/Signal Publications Inc., 1987. . Green, William. Famous Fighters of the Second World War. Garden City, New York: Doubleday & Company, 1975. . Green, William. "Vought F4U-1, F4U-4 (FG-1 Corsair)". War Planes of the Second World War, Volume Four: Fighters. Garden City, New York: Doubleday & Company, 1973, pp. 188–194. . Green, William and Gordon Swanborough. "Chance Vought F4U Corsair". WW2 Aircraft Fact Files: U.S. Navy and Marine Corps Fighters. London: Macdonald and Jane's Publishers Ltd., 1976, pp. 16–29. . Grossnick, Roy A. and William J. Armstrong. United States Naval Aviation, 1910–1995. Annapolis, Maryland: Naval Historical Center, 1997. . Guyton, Boone T. Whistling Death: The Test Pilot's Story of the F4U Corsair. Atglen, Pennsylvania: Schiffer Publishing Ltd., 1996. . The Illustrated Encyclopedia of Aircraft. London: Aerospace Publishing/Orbis Publishing, 1985. Jablonski, Edward. Airwar. New York: Doubleday & Co., 1979. . Johnsen, Frederick A. F4U Corsair. New York: Crown Publishers, 1983. . Kinzey, Bert. F4U Corsair Part 2: F4U-4 Through F4U-7: Detail and Scale Vol 56. Carrolton, Texas: Squadron Signal Publications, 1998. Kristy, Ben. Aviation Curator, National Museum of the Marine Corps, Quantico, Virginia. Emailed remarks regarding FG-1A Corsairs. 25 February 2013 Maloney, Edward T. and Uwe Feist. Chance Vought F4U Corsair, Vol. 11. Fallbrook, California: Aero Publishers, Inc., 1967. . March, Daniel J. "British Warplanes of World War II". Westport, CT: AIRtime Publishing Inc., 1998. Mondey, David. The Hamlyn Concise Guide to American Aircraft of World War II. London: Octopus Publishing Group Ltd., 1982. . Moran, Gerard P., Aeroplanes Vought, 1917–1977. Terre Haute, Indiana: Aviation Heritage Books, Sunshine House, Inc., 1978. . Morris, David. Corsair KD431: The Time Capsule Fighter. Stroud, UK: Sutton Publishing Ltd., 2006. . Musciano, Walter A. Corsair Aces: The Bent-wing Bird Over the Pacific. New York: Arco Publishing Company, Inc., 1979. . Núñez, Padin and Jorge Félix. Vought F4U-5,-5N & 5NL Corsair (serie Aeronaval Nro.18) (in Spanish). Buenos Aires, Argentina: Museo de la Aviacón Naval, Instituto Aeronaval, 2004. Okumiya, Masatake and Jiro Horikoshi, with Martin Caidin. Zero! New York: E.P. Dutton & Co., 1956. O'Leary, Michael. United States Naval Fighters of World War II in Action. Poole, Dorset, UK: Blandford Press, 1980. . Pautigny, Bruno (translated from the French by Alan McKay). Corsair: 30 Years of Filibustering 1940–1970. Paris: Histoire & Collections, 2003. . Pilots Manual for F4U Corsair. Appleton, Wisconsin: Aviation Publications, 1977 (reprint). . Pilot's Notes for Corsair I-IV: Air Publications 2351A, B, C & D-P.N.. London: Air Ministry, August 1944. Russell, Warren P. Chance Vought F4U-1/F4U-1D and Goodyear FG-1D Corsair: NZPAF, RNZAF Aircraft colour schemes. Invercargill, New Zealand: New Zealand Aero Products, 1984. Sakaida, Henry. Imperial Japanese Navy Aces 1937–45 – Osprey Aircraft of the Aces 22. Botley, Oxford: Osprey Publishing, 1998, . Sherrod, Robert. History of Marine Corps Aviation in World War II. Washington, D.C.: Combat Forces Press, 1952. No ISBN. Shettle, M.L. Marine Corps Air Stations of World War II. Bowersville, Georgia: Schaertel Publishing Co., 2001. . Styling, Mark. Corsair Aces of World War 2 (Osprey Aircraft of the Aces No 8). London: Osprey Publishing, 1995. . Sullivan, Jim. F4U Corsair in action. Carrollton, TX: Squadron/Signal Publications, 1977. . Sullivan, Jim. F4U Corsair in action. Carrollton, TX: Squadron/Signal Publications, 2010. . Swanborough, Gordon and Peter M. Bowers. United States Navy Aircraft since 1911. London: Putnam, Second edition, 1976. . Thetford, Owen. British Naval Aircraft since 1912. London: Putnam, Fourth edition, 1978. . Thompson, Warren. "Marine Corsairs in Korea". International Air Power Review, Volume 11, Winter 2003/2004, Norwalk, CO: AirTime Publishing, 2004. . Thompson, Warren. F4U Corsair Units of the Korean War: Osprey Combat Aircraft 78. Botley, Oxford UK: Osprey Publishing, 2009. Tillman, Barrett. Corsair — The F4U in World War II and Korea. Annapolis, Maryland: Naval Institute Press, 1979. . Tillman, Barrett. Vought F4U Corsair. Warbird Tech Series, Vol. 4. North Branch, Minnesota: Speciality Press, 1996. . Veronico, Nick and John M. and Donna Campbell. F4U Corsair. St. Paul, Minnesota: Motorbooks International, 1994. . Wilson, Randy. "From Bent-winged Bird to Whistling Death." The Dispatch. Midland, Texas: Confederate Air Force, 1996. Further reading Núñez Padin, Jorge Felix. Vought F4U-5, -5N & -5NL Corsair (Serie Aeronaval, Volume 27). Bahía Blanca, Argentina: Fuerzas Aeronavales, 2009. . External links VBF-85 Historical web site; F4U-1D, F4U-1C, FG-1D CorsairExperience.com: Interviews with Corsair pilots AviationHistory: Vought F4U Corsair WWII Aircraft performance: Includes a large collection of official test data for F4U & FG series Retrieved: 20 February 2009. Vought F4U Corsair Vought F4U Corsair Survivor links AeroWeb: List of survivor F4Us on display AeroWeb: List of survivor FG1s on display Brewster F3A Corsair on display Warbird Registry — listings of existing Corsairs Hi-res spherical panoramas inside the cockpit, access panels, tail wheel and arrestor hook bays
imprisoned there. In 2003, Meijer stopped resisting his extradition to the Netherlands, and was transferred to a Dutch prison to serve the last part of his term. The films The Heineken Kidnapping (2011) and Kidnapping Freddy Heineken (2015) are based on this incident. Personal life Heineken married Lucille Cummins, an American from a Kentucky family of bourbon whiskey distillers. Heineken died from pneumonia on 3 January 2002 at the age of 78 in his home in Noordwijk in the presence of his immediate family, including his daughter Charlene de Carvalho-Heineken. Heineken struggled for some time with deteriorating health; in 1999 he suffered a mild stroke but recovered. Shortly before his death he broke his arm in a fall. Heineken was buried at the General Cemetery in Noordwijk. Heineken's daughter inherited his fortune. Heineken was a member of the People's Party for Freedom and Democracy (VVD). In popular culture A film of the kidnapping, De Heineken Ontvoering, with Rutger Hauer playing Freddy Heineken, was released in October 2011. A second film, Kidnapping Mr. Heineken, based on De Vries' book about the kidnapping, was produced by Informant Media in 2013 based on the scenario written by William Brookfield. In this film Heineken is played by Anthony Hopkins with the kidnappers played by Jim Sturgess, Sam Worthington, Ryan Kwanten, Mark van Eeuwen and Thomas Cocquerel. Book The United States of Europe, A Eurotopia?, 1992. See also List of kidnappings List of solved missing person cases References External links 1923 births 2002 deaths 20th-century Dutch businesspeople Dutch corporate directors Dutch investors Dutch stock traders Dutch billionaires Dutch public relations people Dutch chief executives in the food industry Chief marketing officers Chairmen of Heineken International Stockbrokers Heineken people Dutch expatriates in the United States Kidnapped businesspeople Marketing theorists Market researchers Dutch marketing people Members of the People's Party for Freedom and Democracy Dutch brewers Businesspeople from Amsterdam Kidnapped Dutch people People
then was no longer owned by the family. He bought back stock several years later, to ensure the family controlled the company again. He created the Heineken Holding that owned 50.005% of Heineken International; he personally held a majority stake in Heineken Holding. By the time of his resignation as chairman of the board in 1989 he had transformed Heineken from a brand that was known primarily in the Netherlands into a brand name recognized worldwide. Kidnapping Freddy Heineken and his driver Ab Doderer were kidnapped in 1983 and released on a ransom of 35 million Dutch guilders (around 15,800,000 euros). The kidnappers – Cor van Hout, Willem Holleeder, Jan Boellaard, Frans Meijer, and Martin Erkamps – were eventually caught and served prison terms. Before being extradited, Van Hout and Holleeder stayed for more than three years in France, first on the run, then in prison, and then, awaiting a change of the extradition treaty, under house arrest, and finally in prison again. Meijer escaped and lived in Paraguay for years, until he was discovered by reporter Peter R. de Vries and imprisoned there. In 2003, Meijer stopped resisting his extradition to the Netherlands, and was transferred to a Dutch prison to serve the last part of his term. The films The Heineken Kidnapping (2011) and Kidnapping Freddy Heineken (2015) are based on this incident. Personal life Heineken married Lucille Cummins, an American from a Kentucky family of bourbon whiskey distillers. Heineken died from pneumonia on 3 January 2002 at the age of 78 in his home in Noordwijk in the presence of his immediate family, including his daughter Charlene de Carvalho-Heineken. Heineken struggled for some time with deteriorating health; in 1999 he suffered a mild stroke but recovered. Shortly before his death he broke his arm in a fall. Heineken was buried at the General Cemetery in Noordwijk. Heineken's daughter inherited his fortune. Heineken was a member of the People's Party
a sports car, however. Politics The series saw occasional controversy. Definitive rules for the 1985 season did not appear until the championship was well under way. In 1987 questions were asked about the ability of some of the drivers, given the high number of accidents in the formula. In 1989 the eligibility of the new Reynard chassis was challenged, as it was raced with a different nose to the one that had been crash tested. This season also saw problems with driver changes - the cost of F3000 was escalating to the point that teams were finding it difficult to run drivers for a whole season. A rule limiting driver changes to two per car per season meant that some cars had to sit idle while drivers with budgets could not race them. In 1991, some Italian teams started using Agip's so-called "jungle juice" Formula One fuel, worth an estimated 15 bhp, giving their drivers a significant advantage. In the early years of the formula there was much concern about safety, with a high number of accidents resulting in injuries to drivers. There was one fatality in the International Championship - Marco Campos in the final round of the 1995 series. Races Formula 3000 races during the "open chassis" era tended to be of about 100–120 miles in distance, held at major circuits, either headlining meetings or paired with other international events. The "jewel in the crown" of the F3000 season was traditionally the Pau Grand Prix street race, rivalled for a few years by the Birmingham round. Most major circuits in France, Italy, Spain, Germany and the United Kingdom saw the series visit at least once. The spec-chassis years In 1996, new rules introduced a single engine (a detuned Judd V8 engine, re-engineered by and badged as a Zytek) and chassis (Lola), to go along with tyre standardization (Avon) introduced in 1986. The following year the calendar was combined with that of Formula One, so the series became support races for the Grand Prix. Several Grand Prix teams established formal links with F3000 teams to develop young drivers
and Ralt were developments of their existing 1984 Formula Two designs, although Lola's entry was based on and looked very much like an IndyCar. A few smaller teams tried obsolete three-litre Formula One cars (from Tyrrell, Williams, Minardi, Arrows and RAM), with little success—the Grand Prix and Indycar-derived entries were too unwieldy as their fuel tanks were about twice the size of those needed for F3000 races, and the weight distribution was not ideal. The first few years of the championship saw March establishing a superiority over Ralt and Lola—there was little to choose between the chassis, but more Marches were sold and ended up in better hands. In 1988, the ambitious Reynard marque entered with a brand new chassis; Reynard had won their first race in every formula they had previously entered, and did so again in F3000. The next couple of years saw Lola improve slightly—their car was competitive with the Reynard in 1990—and March slip, but both were crushed by the Reynard teams, and by the mid-90s, F3000 was a virtual Reynard monopoly, although Lola did eventually return with a promising car and the Japanese Footwork and Dome chassis were seen in Europe. Dallara briefly tried the series before moving up to Formula One, and AGS moved up from Formula Two but never recaptured their occasional success. At least one unraced F3000 chassis existed—the Wagner fitted with a straight-six short-stroke BMW. This was converted into a sports car, however. Politics The series saw occasional controversy. Definitive rules for the 1985 season did not appear until the championship was well under way. In 1987 questions were asked about the ability of some of the drivers, given the high number of accidents in the formula. In 1989 the eligibility of the new Reynard chassis was challenged, as it was raced with a different nose to the one that had been crash tested. This season also saw problems with driver changes - the cost of F3000 was escalating to the point that teams were finding it difficult to run drivers for a whole season. A rule limiting driver changes to two per car per season meant that some cars had to sit idle while drivers with budgets could not race them. In 1991, some Italian teams started using Agip's so-called "jungle juice" Formula One fuel, worth an estimated 15 bhp, giving their drivers a significant advantage. In the early years of
date rape drug.<ref></ref. Page last updated January 8, 2015</ref> Use In countries where this drug is used, it is used for treatment of severe cases of sleeping problems, and in some countries as a preanesthetic agent. These were also the uses for which it was originally studied. It has also been administered as a concurrent dose for patients that are taking ketamine. Rohypnol lowers the side effects of the anesthetic (ketamine), resulting in less confusion in awakening states, less negative influence on pulse rate, and fewer fluctuations in blood pressure. Adverse effects Adverse effects of flunitrazepam include dependency, both physical and psychological; reduced sleep quality resulting in somnolence; and overdose, resulting in excessive sedation, impairment of balance and speech, respiratory depression or coma, and possibly death. Because of the latter, flunitrazepam is commonly used in suicide. When used in late pregnancy, it might cause hypotonia of the fetus. Dependence Flunitrazepam, as with other benzodiazepines, can lead to drug dependence. Discontinuation may result in benzodiazepine withdrawal syndrome, characterised by seizures, psychosis, insomnia, and anxiety. Rebound insomnia, worse than baseline insomnia, typically occurs after discontinuation of flunitrazepam even from short-term single nightly dose therapy. Paradoxical effects Flunitrazepam may cause a paradoxical reaction in some individuals, including anxiety, aggressiveness, agitation, confusion, disinhibition, loss of impulse control, talkativeness, violent behavior, and even convulsions. Paradoxical adverse effects may even lead to criminal behaviour. Hypotonia Benzodiazepines such as flunitrazepam are lipophilic and rapidly penetrate membranes and, therefore, rapidly cross over into the placenta with significant uptake of the drug. Use of benzodiazepines including flunitrazepam in late pregnancy, especially high doses, may result in hypotonia, also known as floppy baby syndrome. Other Flunitrazepam impairs cognitive functions. This may appear as lack of concentration, confusion and anterograde amnesia—the inability to create memories while under the influence. It can be described as a hangover-like effect which can persist to the next day. It also impairs psychomotor functions similar to other benzodiazepines and nonbenzodiazepine hypnotic drugs; falls and hip fractures were frequently reported. The combination with alcohol increases these impairments. Partial, but incomplete tolerance develops to these impairments. Other adverse effects include: Slurred speech Gastrointestinal disturbances, lasting 12 or more hours Vomiting Respiratory depression in higher doses Special precautions Benzodiazepines require special precaution if used in the elderly, during pregnancy, in children, in alcohol- or drug-dependent individuals, and in individuals with comorbid psychiatric disorders. Impairment of driving skills with a resultant increased risk of road traffic accidents is probably the most important adverse effect. This side-effect is not unique to flunitrazepam but also occurs with other hypnotic drugs. Flunitrazepam seems to have a particularly high risk of road traffic accidents compared to other hypnotic drugs. Extreme caution should be exercised by drivers after taking flunitrazepam. Interactions The use of flunitrazepam in combination with alcoholic beverages synergizes the adverse effects, and can lead to toxicity and death. Overdose Flunitrazepam is a drug that is frequently involved in drug intoxication, including overdose. Overdose of flunitrazepam may result in excessive sedation, or impairment of balance or speech. This may progress in severe overdoses to respiratory depression or coma and possibly death. The risk of overdose is increased if flunitrazepam is taken in combination with CNS depressants such as ethanol (alcohol) and opioids. Flunitrazepam overdose responds to the GABAA receptor antagonist flumazenil, which thus can be used as a treatment. Detection As of 2016, blood tests can identify flunitrazepam at concentrations of as low as 4 nanograms per millilitre; the elimination half life of the drug is 11–25 hours. For urine samples, metabolites can be identified for 60 hours to 28 days, depending on the dose and analytical method used. Hair and saliva can also be analyzed; hair is useful when a long time has transpired since ingestion, and saliva for workplace drug tests. Flunitrazepam can be measured in blood or plasma to confirm a diagnosis of poisoning in hospitalized patients, provide evidence in an impaired driving arrest, or assist in a medicolegal death investigation. Blood or plasma flunitrazepam concentrations are usually in a range of 5–20 μg/L in persons receiving the drug therapeutically as a nighttime hypnotic, 10–50 μg/L in those arrested for impaired driving and 100–1000 μg/L in victims of acute fatal overdosage. Urine is often the preferred specimen for routine substance use monitoring purposes. The presence of 7-aminoflunitrazepam, a pharmacologically-active metabolite and in vitro degradation product, is useful for confirmation of flunitrazepam ingestion. In postmortem specimens, the parent drug may have been entirely degraded over time to 7-aminoflunitrazepam. Other metabolites include desmethylflunitrazepam
been administered as a concurrent dose for patients that are taking ketamine. Rohypnol lowers the side effects of the anesthetic (ketamine), resulting in less confusion in awakening states, less negative influence on pulse rate, and fewer fluctuations in blood pressure. Adverse effects Adverse effects of flunitrazepam include dependency, both physical and psychological; reduced sleep quality resulting in somnolence; and overdose, resulting in excessive sedation, impairment of balance and speech, respiratory depression or coma, and possibly death. Because of the latter, flunitrazepam is commonly used in suicide. When used in late pregnancy, it might cause hypotonia of the fetus. Dependence Flunitrazepam, as with other benzodiazepines, can lead to drug dependence. Discontinuation may result in benzodiazepine withdrawal syndrome, characterised by seizures, psychosis, insomnia, and anxiety. Rebound insomnia, worse than baseline insomnia, typically occurs after discontinuation of flunitrazepam even from short-term single nightly dose therapy. Paradoxical effects Flunitrazepam may cause a paradoxical reaction in some individuals, including anxiety, aggressiveness, agitation, confusion, disinhibition, loss of impulse control, talkativeness, violent behavior, and even convulsions. Paradoxical adverse effects may even lead to criminal behaviour. Hypotonia Benzodiazepines such as flunitrazepam are lipophilic and rapidly penetrate membranes and, therefore, rapidly cross over into the placenta with significant uptake of the drug. Use of benzodiazepines including flunitrazepam in late pregnancy, especially high doses, may result in hypotonia, also known as floppy baby syndrome. Other Flunitrazepam impairs cognitive functions. This may appear as lack of concentration, confusion and anterograde amnesia—the inability to create memories while under the influence. It can be described as a hangover-like effect which can persist to the next day. It also impairs psychomotor functions similar to other benzodiazepines and nonbenzodiazepine hypnotic drugs; falls and hip fractures were frequently reported. The combination with alcohol increases these impairments. Partial, but incomplete tolerance develops to these impairments. Other adverse effects include: Slurred speech Gastrointestinal disturbances, lasting 12 or more hours Vomiting Respiratory depression in higher doses Special precautions Benzodiazepines require special precaution if used in the elderly, during pregnancy, in children, in alcohol- or drug-dependent individuals, and in individuals with comorbid psychiatric disorders. Impairment of driving skills with a resultant increased risk of road traffic accidents is probably the most important adverse effect. This side-effect is not unique to flunitrazepam but also occurs with other hypnotic drugs. Flunitrazepam seems to have a particularly high risk of road traffic accidents compared to other hypnotic drugs. Extreme caution should be exercised by drivers after taking flunitrazepam. Interactions The use of flunitrazepam in combination with alcoholic beverages synergizes the adverse effects, and can lead to toxicity and death. Overdose Flunitrazepam is a drug that is frequently involved in drug intoxication, including overdose. Overdose of flunitrazepam may result in excessive sedation, or impairment of balance or speech. This may progress in severe overdoses to respiratory depression or coma and possibly death. The risk of overdose is increased if flunitrazepam is taken in combination with CNS depressants such as ethanol (alcohol) and opioids. Flunitrazepam overdose responds to the GABAA receptor antagonist flumazenil, which thus can be used as a treatment. Detection As of 2016, blood tests can identify flunitrazepam at concentrations of as low as 4 nanograms per millilitre; the elimination half life of the drug is 11–25 hours. For urine samples, metabolites can be identified for 60 hours to 28 days, depending on the dose and analytical method used. Hair and saliva can also be analyzed; hair is useful when a long time has transpired since ingestion, and saliva for workplace drug tests. Flunitrazepam can be measured in blood or plasma to confirm a diagnosis of poisoning in hospitalized patients, provide evidence in an impaired driving arrest, or assist in a medicolegal death investigation. Blood or plasma flunitrazepam concentrations are usually in a range of 5–20 μg/L in persons receiving the drug therapeutically as a nighttime hypnotic, 10–50 μg/L in those arrested for impaired driving and 100–1000 μg/L in victims of acute fatal overdosage. Urine is often the preferred specimen for routine substance use monitoring purposes. The presence of 7-aminoflunitrazepam, a pharmacologically-active metabolite and in vitro degradation product, is useful for confirmation of flunitrazepam ingestion. In postmortem specimens, the parent drug may have been entirely degraded over time to 7-aminoflunitrazepam. Other metabolites include desmethylflunitrazepam and 3-hydroxydesmethylflunitrazepam. Pharmacology The main pharmacological effects of flunitrazepam are the enhancement of GABA, an inhibitory neurotransmitter, at various GABA receptors. While 80% of flunitrazepam that is taken orally is absorbed, bioavailability in suppository form is closer to 50%. Flunitrazepam has a long half-life of 18–26 hours, which means that flunitrazepam's effects after nighttime administration persist throughout the next day. This is due to the production of active metabolites. These metabolites further increase the duration of drug action compared to benzodiazepines that produce nonactive metabolites. Flunitrazepam is lipophilic and is metabolised by the liver via oxidative pathways. The enzyme CYP3A4 is the main enzyme in its phase 1 metabolism in human liver microsomes. Chemistry Flunitrazepam is classed as a nitro-benzodiazepine. It is the fluorinated N-methyl derivative of nitrazepam. Other nitro-benzodiazepines include nitrazepam (the parent compound), nimetazepam (methylamino derivative) and clonazepam (2ʹ-chlorinated derivative). History Flunitrazepam was discovered at Roche as part of the benzodiazepine work led by Leo Sternbach; the patent application was filed in 1962 and it was first marketed in 1974. Due to use of the drug for date rape and recreation, in 1998 Roche modified the formulation to give lower doses, make it less soluble, and add a blue dye for easier
achieved, assuming volume production of 500,000 units per year. Many companies are working on techniques to reduce cost in a variety of ways including reducing the amount of platinum needed in each individual cell. Ballard Power Systems has experimented with a catalyst enhanced with carbon silk, which allows a 30% reduction (1.0–0.7 mg/cm2) in platinum usage without reduction in performance. Monash University, Melbourne uses PEDOT as a cathode. A 2011-published study documented the first metal-free electrocatalyst using relatively inexpensive doped carbon nanotubes, which are less than 1% the cost of platinum and are of equal or superior performance. A recently published article demonstrated how the environmental burdens change when using carbon nanotubes as carbon substrate for platinum. Water and air management (in PEMFCs) In this type of fuel cell, the membrane must be hydrated, requiring water to be evaporated at precisely the same rate that it is produced. If water is evaporated too quickly, the membrane dries, resistance across it increases, and eventually it will crack, creating a gas "short circuit" where hydrogen and oxygen combine directly, generating heat that will damage the fuel cell. If the water is evaporated too slowly, the electrodes will flood, preventing the reactants from reaching the catalyst and stopping the reaction. Methods to manage water in cells are being developed like electroosmotic pumps focusing on flow control. Just as in a combustion engine, a steady ratio between the reactant and oxygen is necessary to keep the fuel cell operating efficiently. Temperature management The same temperature must be maintained throughout the cell in order to prevent destruction of the cell through thermal loading. This is particularly challenging as the 2H2 + O2 → 2H2O reaction is highly exothermic, so a large quantity of heat is generated within the fuel cell. Durability, service life, and special requirements for some type of cells Stationary fuel cell applications typically require more than 40,000 hours of reliable operation at a temperature of −35 °C to 40 °C (−31 °F to 104 °F), while automotive fuel cells require a 5,000-hour lifespan (the equivalent of ) under extreme temperatures. Current service life is 2,500 hours (about 75,000 miles). Automotive engines must also be able to start reliably at −30 °C (−22 °F) and have a high power-to-volume ratio (typically 2.5 kW/L). Limited carbon monoxide tolerance of some (non-PEDOT) cathodes. Phosphoric acid fuel cell Phosphoric acid fuel cells (PAFC) were first designed and introduced in 1961 by G. V. Elmore and H. A. Tanner. In these cells phosphoric acid is used as a non-conductive electrolyte to pass positive hydrogen ions from the anode to the cathode. These cells commonly work in temperatures of 150 to 200 degrees Celsius. This high temperature will cause heat and energy loss if the heat is not removed and used properly. This heat can be used to produce steam for air conditioning systems or any other thermal energy consuming system. Using this heat in cogeneration can enhance the efficiency of phosphoric acid fuel cells from 40 to 50% to about 80%. Phosphoric acid, the electrolyte used in PAFCs, is a non-conductive liquid acid which forces electrons to travel from anode to cathode through an external electrical circuit. Since the hydrogen ion production rate on the anode is small, platinum is used as catalyst to increase this ionization rate. A key disadvantage of these cells is the use of an acidic electrolyte. This increases the corrosion or oxidation of components exposed to phosphoric acid. Solid acid fuel cell Solid acid fuel cells (SAFCs) are characterized by the use of a solid acid material as the electrolyte. At low temperatures, solid acids have an ordered molecular structure like most salts. At warmer temperatures (between 140 and 150°C for CsHSO4), some solid acids undergo a phase transition to become highly disordered "superprotonic" structures, which increases conductivity by several orders of magnitude. The first proof-of-concept SAFCs were developed in 2000 using cesium hydrogen sulfate (CsHSO4). Current SAFC systems use cesium dihydrogen phosphate (CsH2PO4) and have demonstrated lifetimes in the thousands of hours. Alkaline fuel cell The alkaline fuel cell (AFC) or hydrogen-oxygen fuel cell was designed and first demonstrated publicly by Francis Thomas Bacon in 1959. It was used as a primary source of electrical energy in the Apollo space program. The cell consists of two porous carbon electrodes impregnated with a suitable catalyst such as Pt, Ag, CoO, etc. The space between the two electrodes is filled with a concentrated solution of KOH or NaOH which serves as an electrolyte. H2 gas and O2 gas are bubbled into the electrolyte through the porous carbon electrodes. Thus the overall reaction involves the combination of hydrogen gas and oxygen gas to form water. The cell runs continuously until the reactant's supply is exhausted. This type of cell operates efficiently in the temperature range 343–413K and provides a potential of about 0.9V. Alkaline anion exchange membrane fuel cell (AAEMFC) is a type of AFC which employs a solid polymer electrolyte instead of aqueous potassium hydroxide (KOH) and it is superior to aqueous AFC. High-temperature fuel cells Solid oxide fuel cell Solid oxide fuel cells (SOFCs) use a solid material, most commonly a ceramic material called yttria-stabilized zirconia (YSZ), as the electrolyte. Because SOFCs are made entirely of solid materials, they are not limited to the flat plane configuration of other types of fuel cells and are often designed as rolled tubes. They require high operating temperatures (800–1000 °C) and can be run on a variety of fuels including natural gas. SOFCs are unique since in those, negatively charged oxygen ions travel from the cathode (positive side of the fuel cell) to the anode (negative side of the fuel cell) instead of positively charged hydrogen ions travelling from the anode to the cathode, as is the case in all other types of fuel cells. Oxygen gas is fed through the cathode, where it absorbs electrons to create oxygen ions. The oxygen ions then travel through the electrolyte to react with hydrogen gas at the anode. The reaction at the anode produces electricity and water as by-products. Carbon dioxide may also be a by-product depending on the fuel, but the carbon emissions from an SOFC system are less than those from a fossil fuel combustion plant. The chemical reactions for the SOFC system can be expressed as follows: Anode reaction: 2H2 + 2O2− → 2H2O + 4e− Cathode reaction: O2 + 4e− → 2O2− Overall cell reaction: 2H2 + O2 → 2H2O SOFC systems can run on fuels other than pure hydrogen gas. However, since hydrogen is necessary for the reactions listed above, the fuel selected must contain hydrogen atoms. For the fuel cell to operate, the fuel must be converted into pure hydrogen gas. SOFCs are capable of internally reforming light hydrocarbons such as methane (natural gas), propane and butane. These fuel cells are at an early stage of development. Challenges exist in SOFC systems due to their high operating temperatures. One such challenge is the potential for carbon dust to build up on the anode, which slows down the internal reforming process. Research to address this "carbon coking" issue at the University of Pennsylvania has shown that the use of copper-based cermet (heat-resistant materials made of ceramic and metal) can reduce coking and the loss of performance. Another disadvantage of SOFC systems is slow start-up time, making SOFCs less useful for mobile applications. Despite these disadvantages, a high operating temperature provides an advantage by removing the need for a precious metal catalyst like platinum, thereby reducing cost. Additionally, waste heat from SOFC systems may be captured and reused, increasing the theoretical overall efficiency to as high as 80–85%. The high operating temperature is largely due to the physical properties of the YSZ electrolyte. As temperature decreases, so does the ionic conductivity of YSZ. Therefore, to obtain optimum performance of the fuel cell, a high operating temperature is required. According to their website, Ceres Power, a UK SOFC fuel cell manufacturer, has developed a method of reducing the operating temperature of their SOFC system to 500–600 degrees Celsius. They replaced the commonly used YSZ electrolyte with a CGO (cerium gadolinium oxide) electrolyte. The lower operating temperature allows them to use stainless steel instead of ceramic as the cell substrate, which reduces cost and start-up time of the system. Molten-carbonate fuel cell Molten carbonate fuel cells (MCFCs) require a high operating temperature, , similar to SOFCs. MCFCs use lithium potassium carbonate salt as an electrolyte, and this salt liquefies at high temperatures, allowing for the movement of charge within the cell – in this case, negative carbonate ions. Like SOFCs, MCFCs are capable of converting fossil fuel to a hydrogen-rich gas in the anode, eliminating the need to produce hydrogen externally. The reforming process creates emissions. MCFC-compatible fuels include natural gas, biogas and gas produced from coal. The hydrogen in the gas reacts with carbonate ions from the electrolyte to produce water, carbon dioxide, electrons and small amounts of other chemicals. The electrons travel through an external circuit creating electricity and return to the cathode. There, oxygen from the air and carbon dioxide recycled from the anode react with the electrons to form carbonate ions that replenish the electrolyte, completing the circuit. The chemical reactions for an MCFC system can be expressed as follows: Anode reaction: CO32− + H2 → H2O + CO2 + 2e− Cathode reaction: CO2 + ½O2 + 2e− → CO32− Overall cell reaction: H2 + ½O2 → H2O As with SOFCs, MCFC disadvantages include slow start-up times because of their high operating temperature. This makes MCFC systems not suitable for mobile applications, and this technology will most likely be used for stationary fuel cell purposes. The main challenge of MCFC technology is the cells' short life span. The high-temperature and carbonate electrolyte lead to corrosion of the anode and cathode. These factors accelerate the degradation of MCFC components, decreasing the durability and cell life. Researchers are addressing this problem by exploring corrosion-resistant materials for components as well as fuel cell designs that may increase cell life without decreasing performance. MCFCs hold several advantages over other fuel cell technologies, including their resistance to impurities. They are not prone to "carbon coking", which refers to carbon build-up on the anode that results in reduced performance by slowing down the internal fuel reforming process. Therefore, carbon-rich fuels like gases made from coal are compatible with the system. The United States Department of Energy claims that coal, itself, might even be a fuel option in the future, assuming the system can be made resistant to impurities such as sulfur and particulates that result from converting coal into hydrogen. MCFCs also have relatively high efficiencies. They can reach a fuel-to-electricity efficiency of 50%, considerably higher than the 37–42% efficiency of a phosphoric acid fuel cell plant. Efficiencies can be as high as 65% when the fuel cell is paired with a turbine, and 85% if heat is captured and used in a combined heat and power (CHP) system. FuelCell Energy, a Connecticut-based fuel cell manufacturer, develops and sells MCFC fuel cells. The company says that their MCFC products range from 300 kW to 2.8 MW systems that achieve 47% electrical efficiency and can utilize CHP technology to obtain higher overall efficiencies. One product, the DFC-ERG, is combined with a gas turbine and, according to the company, it achieves an electrical efficiency of 65%. Electric storage fuel cell The electric storage fuel cell is a conventional battery chargeable by electric power input, using the conventional electro-chemical effect. However, the battery further includes hydrogen (and oxygen) inputs for alternatively charging the battery chemically. Comparison of fuel cell types Glossary of terms in table: Anode The electrode at which oxidation (a loss of electrons) takes place. For fuel cells and other galvanic cells, the anode is the negative terminal; for electrolytic cells (where electrolysis occurs), the anode is the positive terminal. Aqueous solution Catalyst A chemical substance that increases the rate of a reaction without being consumed; after the reaction, it can potentially be recovered from the reaction mixture and is chemically unchanged. The catalyst lowers the activation energy required, allowing the reaction to proceed more quickly or at a lower temperature. In a fuel cell, the catalyst facilitates the reaction of oxygen and hydrogen. It is usually made of platinum powder very thinly coated onto carbon paper or cloth. The catalyst is rough and porous so the maximum surface area of the platinum can be exposed to the hydrogen or oxygen. The platinum-coated side of the catalyst faces the membrane in the fuel cell. Cathode The electrode at which reduction (a gain of electrons) occurs. For fuel cells and other galvanic cells, the cathode is the positive terminal; for electrolytic cells (where electrolysis occurs), the cathode is the negative terminal. Electrolyte A substance that conducts charged ions from one electrode to the other in a fuel cell, battery, or electrolyzer. Fuel cell stack Individual fuel cells connected in a series. Fuel cells are stacked to increase voltage. Matrix something within or from which something else originates, develops, or takes form. Membrane The separating layer in a fuel cell that acts as electrolyte (an ion-exchanger) as well as a barrier film separating the gases in the anode and cathode compartments of the fuel cell. Molten carbonate fuel cell (MCFC) A type of fuel cell that contains a molten carbonate electrolyte. Carbonate ions (CO32−) are transported from the cathode to the anode. Operating temperatures are typically near 650 °C. Phosphoric acid fuel cell (PAFC) A type of fuel cell in which the electrolyte consists of concentrated phosphoric acid (H3PO4). Protons (H+) are transported from the anode to the cathode. The operating temperature range is generally 160–220 °C. Proton-exchange membrane fuel cell (PEM) A fuel cell incorporating a solid polymer membrane used as its electrolyte. Protons (H+) are transported from the anode to the cathode. The operating temperature range is generally 60–100 °C for Low Temperature Proton-exchange membrane fuel cell (LT-PEMFC). PEM fuel cell with operating temperature of 120-200 °C is called High Temperature Proton-exchange membrane fuel cell (HT-PEMFC). Solid oxide fuel cell (SOFC) A type of fuel cell in which the electrolyte is a solid, nonporous metal oxide, typically zirconium oxide (ZrO2) treated with Y2O3, and O2− is transported from the cathode to the anode. Any CO in the reformate gas is oxidized to CO2 at the anode. Temperatures of operation are typically 800–1,000 °C. Solution Efficiency of leading fuel cell types Theoretical maximum efficiency The energy efficiency of a system or device that converts energy is measured by the ratio of the amount of useful energy put out by the system ("output energy") to the total amount of energy that is put in ("input energy") or by useful output energy as a percentage of the total input energy. In the case of fuel cells, useful output energy is measured in electrical energy produced by the system. Input energy is the energy stored in the fuel. According to the U.S. Department of Energy, fuel cells are generally between 40 and 60% energy efficient. This is higher than some other systems for energy generation. For example, the typical internal combustion engine of a car is about 25% energy efficient. In combined heat and power (CHP) systems, the heat produced by the fuel cell is captured and put to use, increasing the efficiency of the system to up to 85–90%. The theoretical maximum efficiency of any type of power generation system is never reached in practice, and it does not consider other steps in power generation, such as production, transportation and storage of fuel and conversion of the electricity into mechanical power. However, this calculation allows the comparison of different types of power generation. The theoretical maximum efficiency of a fuel cell approaches 100%, while the theoretical maximum efficiency of internal combustion engines is approximately 58%. In practice In a fuel cell vehicle the tank-to-wheel efficiency is greater than 45% at low loads and shows average values of about 36% when a driving cycle like the NEDC (New European Driving Cycle) is used as test procedure. The comparable NEDC value for a Diesel vehicle is 22%. In 2008 Honda released a demonstration fuel cell electric vehicle (the Honda FCX Clarity) with fuel stack claiming a 60% tank-to-wheel efficiency. It is also important to take losses due to fuel production, transportation, and storage into account. Fuel cell vehicles running on compressed hydrogen may have a power-plant-to-wheel efficiency of 22% if the hydrogen is stored as high-pressure gas, and 17% if it is stored as liquid hydrogen. Fuel cells cannot store energy like a battery, except as hydrogen, but in some applications, such as stand-alone power plants based on discontinuous sources such as solar or wind power, they are combined with electrolyzers and storage systems to form an energy storage system. As of 2019, 90% of hydrogen was used for oil refining, chemicals and fertilizer production, and 98% of hydrogen is produced by steam methane reforming, which emits carbon dioxide. The overall efficiency (electricity to hydrogen and back to electricity) of such plants (known as round-trip efficiency), using pure hydrogen and pure oxygen can be "from 35 up to 50 percent", depending on gas density and other conditions. The electrolyzer/fuel cell system can store indefinite quantities of hydrogen, and is therefore suited for long-term storage. Solid-oxide fuel cells produce heat from the recombination of the oxygen and hydrogen. The ceramic can run as hot as 800 degrees Celsius. This heat can be captured and used to heat water in a micro combined heat and power (m-CHP) application. When the heat is captured, total efficiency can reach 80–90% at the unit, but does not consider production and distribution losses. CHP units are being developed today for the European home market. Professor Jeremy P. Meyers, in the Electrochemical Society journal Interface in 2008, wrote, "While fuel cells are efficient relative to combustion engines, they are not as efficient as batteries, primarily due to the inefficiency of the oxygen reduction reaction (and ... the oxygen evolution reaction, should the hydrogen be formed by electrolysis of water).... [T]hey make the most sense for operation disconnected from the grid, or when fuel can be provided continuously. For applications that require frequent and relatively rapid start-ups ... where zero emissions are a requirement, as in enclosed spaces such as warehouses, and where hydrogen is considered an acceptable reactant, a [PEM fuel cell] is becoming an increasingly attractive choice [if exchanging batteries is inconvenient]". In 2013 military organizations were evaluating fuel cells to determine if they could significantly reduce the battery weight carried by soldiers. Applications Power Stationary fuel cells are used for commercial, industrial and residential primary and backup power generation. Fuel cells are very useful as power sources in remote locations, such as spacecraft, remote weather stations, large parks, communications centers, rural locations including research stations, and in certain military applications. A fuel cell system running on hydrogen can be compact and lightweight, and have no major moving parts. Because fuel cells have no moving parts and do not involve combustion, in ideal conditions they can achieve up to 99.9999% reliability. This equates to less than one minute of downtime in a six-year period. Since fuel cell electrolyzer systems do not store fuel in themselves, but rather rely on external storage units, they can be successfully applied in large-scale energy storage, rural areas being one example. There are many different types of stationary fuel cells so efficiencies vary, but most are between 40% and 60% energy efficient. However, when the fuel cell's waste heat is used to heat a building in a cogeneration system this efficiency can increase to 85%. This is significantly more efficient than traditional coal power plants, which are only about one third energy efficient. Assuming production at scale, fuel cells could save 20–40% on energy costs when used in cogeneration systems. Fuel cells are also much cleaner than traditional power generation; a fuel cell power plant using natural gas as a hydrogen source would create less than one ounce of pollution (other than ) for every 1,000 kW·h produced, compared to 25 pounds of pollutants generated by conventional combustion systems. Fuel Cells also produce 97% less nitrogen oxide emissions than conventional coal-fired power plants. One such pilot program is operating on Stuart Island in Washington State. There the Stuart Island Energy Initiative has built a complete, closed-loop system: Solar panels power an electrolyzer, which makes hydrogen. The hydrogen is stored in a tank at , and runs a ReliOn fuel cell to provide full electric back-up to the off-the-grid residence. Another closed system loop was unveiled in late 2011 in Hempstead, NY. Fuel cells can be used with low-quality gas from landfills or waste-water treatment plants to generate power and lower methane emissions. A 2.8 MW fuel cell plant in California is said to be the largest of the type. Small-scale (sub-5kWhr) fuel cells are being developed for use in residential off-grid deployment. Cogeneration Combined heat and power (CHP) fuel cell systems, including micro combined heat and power (MicroCHP) systems are used to generate both electricity and heat for homes (see home fuel cell), office building and factories. The system generates constant electric power (selling excess power back to the grid when it is not consumed), and at the same time produces hot air and water from the waste heat. As the result CHP systems have the potential to save primary energy as they can make use of waste heat which is generally rejected by thermal energy conversion systems. A typical capacity range of home fuel cell is 1–3 kWel, 4–8 kWth. CHP systems linked to absorption chillers use their waste heat for refrigeration. The waste heat from fuel cells can be diverted during the summer directly into the ground providing further cooling while the waste heat during winter can be pumped directly into the building. The University of Minnesota owns the patent rights to this type of system Co-generation systems can reach 85% efficiency (40–60% electric and the remainder as thermal). Phosphoric-acid fuel cells (PAFC) comprise the largest segment of existing CHP products worldwide and can provide combined efficiencies close to 90%. Molten carbonate (MCFC) and solid-oxide fuel cells (SOFC) are also used for combined heat and power generation and have electrical energy efficiencies around 60%. Disadvantages of co-generation systems include slow ramping up and down rates, high cost and short lifetime. Also their need to have a hot water storage tank to smooth out the thermal heat production was a serious disadvantage in the domestic market place where space in domestic properties is at a great premium. Delta-ee consultants stated in 2013 that with 64% of global sales the fuel cell micro-combined heat and power passed the conventional systems in sales in 2012. The Japanese ENE FARM project will pass 100,000 FC mCHP systems in 2014, 34.213 PEMFC and 2.224 SOFC were installed in the period 2012–2014, 30,000 units on LNG and 6,000 on LPG. Fuel cell electric vehicles (FCEVs) Automobiles By year-end 2019, about 18,000 FCEVs had been leased or sold worldwide. Three fuel cell electric vehicles have been introduced for commercial lease and sale: the Honda Clarity, Toyota Mirai and the Hyundai ix35 FCEV. Additional demonstration models include the Honda FCX Clarity, and Mercedes-Benz F-Cell. As of June 2011 demonstration FCEVs had driven more than , with more than 27,000 refuelings. Fuel cell electric vehicles feature an average range of 314 miles between refuelings. They can be refueled in less than 5 minutes. The U.S. Department of Energy's Fuel Cell Technology Program states that, as of 2011, fuel cells achieved 53–59% efficiency at one-quarter power and 42–53% vehicle efficiency at full power, and a durability of over with less than 10% degradation. In a 2017 Well-to-Wheels simulation analysis that "did not address the economics and market constraints", General Motors and its partners estimated that per mile traveled, a fuel cell electric vehicle running on compressed gaseous hydrogen produced from natural gas could use about 40% less energy and emit 45% less greenhouse gasses than an internal combustion vehicle. In 2015, Toyota introduced its first fuel cell vehicle, the Mirai, at a price of $57,000. Hyundai introduced the limited production Hyundai ix35 FCEV under a lease agreement. In 2016, Honda started leasing the Honda Clarity Fuel Cell. In 2020, Toyota introduced the second generation of its Mirai brand, improving fuel efficiency and expanding range compared to the original Sedan 2014 model. Criticism Some commentators believe that hydrogen fuel cell cars will never become economically competitive with other technologies or that it will take decades for them to become profitable. Elon Musk, CEO of battery-electric vehicle maker Tesla Motors, stated in 2015 that fuel cells for use in cars will never be commercially viable because of the inefficiency of producing, transporting and storing hydrogen and the flammability of the gas, among other reasons. In 2012, Lux Research, Inc. issued
with carbon silk, which allows a 30% reduction (1.0–0.7 mg/cm2) in platinum usage without reduction in performance. Monash University, Melbourne uses PEDOT as a cathode. A 2011-published study documented the first metal-free electrocatalyst using relatively inexpensive doped carbon nanotubes, which are less than 1% the cost of platinum and are of equal or superior performance. A recently published article demonstrated how the environmental burdens change when using carbon nanotubes as carbon substrate for platinum. Water and air management (in PEMFCs) In this type of fuel cell, the membrane must be hydrated, requiring water to be evaporated at precisely the same rate that it is produced. If water is evaporated too quickly, the membrane dries, resistance across it increases, and eventually it will crack, creating a gas "short circuit" where hydrogen and oxygen combine directly, generating heat that will damage the fuel cell. If the water is evaporated too slowly, the electrodes will flood, preventing the reactants from reaching the catalyst and stopping the reaction. Methods to manage water in cells are being developed like electroosmotic pumps focusing on flow control. Just as in a combustion engine, a steady ratio between the reactant and oxygen is necessary to keep the fuel cell operating efficiently. Temperature management The same temperature must be maintained throughout the cell in order to prevent destruction of the cell through thermal loading. This is particularly challenging as the 2H2 + O2 → 2H2O reaction is highly exothermic, so a large quantity of heat is generated within the fuel cell. Durability, service life, and special requirements for some type of cells Stationary fuel cell applications typically require more than 40,000 hours of reliable operation at a temperature of −35 °C to 40 °C (−31 °F to 104 °F), while automotive fuel cells require a 5,000-hour lifespan (the equivalent of ) under extreme temperatures. Current service life is 2,500 hours (about 75,000 miles). Automotive engines must also be able to start reliably at −30 °C (−22 °F) and have a high power-to-volume ratio (typically 2.5 kW/L). Limited carbon monoxide tolerance of some (non-PEDOT) cathodes. Phosphoric acid fuel cell Phosphoric acid fuel cells (PAFC) were first designed and introduced in 1961 by G. V. Elmore and H. A. Tanner. In these cells phosphoric acid is used as a non-conductive electrolyte to pass positive hydrogen ions from the anode to the cathode. These cells commonly work in temperatures of 150 to 200 degrees Celsius. This high temperature will cause heat and energy loss if the heat is not removed and used properly. This heat can be used to produce steam for air conditioning systems or any other thermal energy consuming system. Using this heat in cogeneration can enhance the efficiency of phosphoric acid fuel cells from 40 to 50% to about 80%. Phosphoric acid, the electrolyte used in PAFCs, is a non-conductive liquid acid which forces electrons to travel from anode to cathode through an external electrical circuit. Since the hydrogen ion production rate on the anode is small, platinum is used as catalyst to increase this ionization rate. A key disadvantage of these cells is the use of an acidic electrolyte. This increases the corrosion or oxidation of components exposed to phosphoric acid. Solid acid fuel cell Solid acid fuel cells (SAFCs) are characterized by the use of a solid acid material as the electrolyte. At low temperatures, solid acids have an ordered molecular structure like most salts. At warmer temperatures (between 140 and 150°C for CsHSO4), some solid acids undergo a phase transition to become highly disordered "superprotonic" structures, which increases conductivity by several orders of magnitude. The first proof-of-concept SAFCs were developed in 2000 using cesium hydrogen sulfate (CsHSO4). Current SAFC systems use cesium dihydrogen phosphate (CsH2PO4) and have demonstrated lifetimes in the thousands of hours. Alkaline fuel cell The alkaline fuel cell (AFC) or hydrogen-oxygen fuel cell was designed and first demonstrated publicly by Francis Thomas Bacon in 1959. It was used as a primary source of electrical energy in the Apollo space program. The cell consists of two porous carbon electrodes impregnated with a suitable catalyst such as Pt, Ag, CoO, etc. The space between the two electrodes is filled with a concentrated solution of KOH or NaOH which serves as an electrolyte. H2 gas and O2 gas are bubbled into the electrolyte through the porous carbon electrodes. Thus the overall reaction involves the combination of hydrogen gas and oxygen gas to form water. The cell runs continuously until the reactant's supply is exhausted. This type of cell operates efficiently in the temperature range 343–413K and provides a potential of about 0.9V. Alkaline anion exchange membrane fuel cell (AAEMFC) is a type of AFC which employs a solid polymer electrolyte instead of aqueous potassium hydroxide (KOH) and it is superior to aqueous AFC. High-temperature fuel cells Solid oxide fuel cell Solid oxide fuel cells (SOFCs) use a solid material, most commonly a ceramic material called yttria-stabilized zirconia (YSZ), as the electrolyte. Because SOFCs are made entirely of solid materials, they are not limited to the flat plane configuration of other types of fuel cells and are often designed as rolled tubes. They require high operating temperatures (800–1000 °C) and can be run on a variety of fuels including natural gas. SOFCs are unique since in those, negatively charged oxygen ions travel from the cathode (positive side of the fuel cell) to the anode (negative side of the fuel cell) instead of positively charged hydrogen ions travelling from the anode to the cathode, as is the case in all other types of fuel cells. Oxygen gas is fed through the cathode, where it absorbs electrons to create oxygen ions. The oxygen ions then travel through the electrolyte to react with hydrogen gas at the anode. The reaction at the anode produces electricity and water as by-products. Carbon dioxide may also be a by-product depending on the fuel, but the carbon emissions from an SOFC system are less than those from a fossil fuel combustion plant. The chemical reactions for the SOFC system can be expressed as follows: Anode reaction: 2H2 + 2O2− → 2H2O + 4e− Cathode reaction: O2 + 4e− → 2O2− Overall cell reaction: 2H2 + O2 → 2H2O SOFC systems can run on fuels other than pure hydrogen gas. However, since hydrogen is necessary for the reactions listed above, the fuel selected must contain hydrogen atoms. For the fuel cell to operate, the fuel must be converted into pure hydrogen gas. SOFCs are capable of internally reforming light hydrocarbons such as methane (natural gas), propane and butane. These fuel cells are at an early stage of development. Challenges exist in SOFC systems due to their high operating temperatures. One such challenge is the potential for carbon dust to build up on the anode, which slows down the internal reforming process. Research to address this "carbon coking" issue at the University of Pennsylvania has shown that the use of copper-based cermet (heat-resistant materials made of ceramic and metal) can reduce coking and the loss of performance. Another disadvantage of SOFC systems is slow start-up time, making SOFCs less useful for mobile applications. Despite these disadvantages, a high operating temperature provides an advantage by removing the need for a precious metal catalyst like platinum, thereby reducing cost. Additionally, waste heat from SOFC systems may be captured and reused, increasing the theoretical overall efficiency to as high as 80–85%. The high operating temperature is largely due to the physical properties of the YSZ electrolyte. As temperature decreases, so does the ionic conductivity of YSZ. Therefore, to obtain optimum performance of the fuel cell, a high operating temperature is required. According to their website, Ceres Power, a UK SOFC fuel cell manufacturer, has developed a method of reducing the operating temperature of their SOFC system to 500–600 degrees Celsius. They replaced the commonly used YSZ electrolyte with a CGO (cerium gadolinium oxide) electrolyte. The lower operating temperature allows them to use stainless steel instead of ceramic as the cell substrate, which reduces cost and start-up time of the system. Molten-carbonate fuel cell Molten carbonate fuel cells (MCFCs) require a high operating temperature, , similar to SOFCs. MCFCs use lithium potassium carbonate salt as an electrolyte, and this salt liquefies at high temperatures, allowing for the movement of charge within the cell – in this case, negative carbonate ions. Like SOFCs, MCFCs are capable of converting fossil fuel to a hydrogen-rich gas in the anode, eliminating the need to produce hydrogen externally. The reforming process creates emissions. MCFC-compatible fuels include natural gas, biogas and gas produced from coal. The hydrogen in the gas reacts with carbonate ions from the electrolyte to produce water, carbon dioxide, electrons and small amounts of other chemicals. The electrons travel through an external circuit creating electricity and return to the cathode. There, oxygen from the air and carbon dioxide recycled from the anode react with the electrons to form carbonate ions that replenish the electrolyte, completing the circuit. The chemical reactions for an MCFC system can be expressed as follows: Anode reaction: CO32− + H2 → H2O + CO2 + 2e− Cathode reaction: CO2 + ½O2 + 2e− → CO32− Overall cell reaction: H2 + ½O2 → H2O As with SOFCs, MCFC disadvantages include slow start-up times because of their high operating temperature. This makes MCFC systems not suitable for mobile applications, and this technology will most likely be used for stationary fuel cell purposes. The main challenge of MCFC technology is the cells' short life span. The high-temperature and carbonate electrolyte lead to corrosion of the anode and cathode. These factors accelerate the degradation of MCFC components, decreasing the durability and cell life. Researchers are addressing this problem by exploring corrosion-resistant materials for components as well as fuel cell designs that may increase cell life without decreasing performance. MCFCs hold several advantages over other fuel cell technologies, including their resistance to impurities. They are not prone to "carbon coking", which refers to carbon build-up on the anode that results in reduced performance by slowing down the internal fuel reforming process. Therefore, carbon-rich fuels like gases made from coal are compatible with the system. The United States Department of Energy claims that coal, itself, might even be a fuel option in the future, assuming the system can be made resistant to impurities such as sulfur and particulates that result from converting coal into hydrogen. MCFCs also have relatively high efficiencies. They can reach a fuel-to-electricity efficiency of 50%, considerably higher than the 37–42% efficiency of a phosphoric acid fuel cell plant. Efficiencies can be as high as 65% when the fuel cell is paired with a turbine, and 85% if heat is captured and used in a combined heat and power (CHP) system. FuelCell Energy, a Connecticut-based fuel cell manufacturer, develops and sells MCFC fuel cells. The company says that their MCFC products range from 300 kW to 2.8 MW systems that achieve 47% electrical efficiency and can utilize CHP technology to obtain higher overall efficiencies. One product, the DFC-ERG, is combined with a gas turbine and, according to the company, it achieves an electrical efficiency of 65%. Electric storage fuel cell The electric storage fuel cell is a conventional battery chargeable by electric power input, using the conventional electro-chemical effect. However, the battery further includes hydrogen (and oxygen) inputs for alternatively charging the battery chemically. Comparison of fuel cell types Glossary of terms in table: Anode The electrode at which oxidation (a loss of electrons) takes place. For fuel cells and other galvanic cells, the anode is the negative terminal; for electrolytic cells (where electrolysis occurs), the anode is the positive terminal. Aqueous solution Catalyst A chemical substance that increases the rate of a reaction without being consumed; after the reaction, it can potentially be recovered from the reaction mixture and is chemically unchanged. The catalyst lowers the activation energy required, allowing the reaction to proceed more quickly or at a lower temperature. In a fuel cell, the catalyst facilitates the reaction of oxygen and hydrogen. It is usually made of platinum powder very thinly coated onto carbon paper or cloth. The catalyst is rough and porous so the maximum surface area of the platinum can be exposed to the hydrogen or oxygen. The platinum-coated side of the catalyst faces the membrane in the fuel cell. Cathode The electrode at which reduction (a gain of electrons) occurs. For fuel cells and other galvanic cells, the cathode is the positive terminal; for electrolytic cells (where electrolysis occurs), the cathode is the negative terminal. Electrolyte A substance that conducts charged ions from one electrode to the other in a fuel cell, battery, or electrolyzer. Fuel cell stack Individual fuel cells connected in a series. Fuel cells are stacked to increase voltage. Matrix something within or from which something else originates, develops, or takes form. Membrane The separating layer in a fuel cell that acts as electrolyte (an ion-exchanger) as well as a barrier film separating the gases in the anode and cathode compartments of the fuel cell. Molten carbonate fuel cell (MCFC) A type of fuel cell that contains a molten carbonate electrolyte. Carbonate ions (CO32−) are transported from the cathode to the anode. Operating temperatures are typically near 650 °C. Phosphoric acid fuel cell (PAFC) A type of fuel cell in which the electrolyte consists of concentrated phosphoric acid (H3PO4). Protons (H+) are transported from the anode to the cathode. The operating temperature range is generally 160–220 °C. Proton-exchange membrane fuel cell (PEM) A fuel cell incorporating a solid polymer membrane used as its electrolyte. Protons (H+) are transported from the anode to the cathode. The operating temperature range is generally 60–100 °C for Low Temperature Proton-exchange membrane fuel cell (LT-PEMFC). PEM fuel cell with operating temperature of 120-200 °C is called High Temperature Proton-exchange membrane fuel cell (HT-PEMFC). Solid oxide fuel cell (SOFC) A type of fuel cell in which the electrolyte is a solid, nonporous metal oxide, typically zirconium oxide (ZrO2) treated with Y2O3, and O2− is transported from the cathode to the anode. Any CO in the reformate gas is oxidized to CO2 at the anode. Temperatures of operation are typically 800–1,000 °C. Solution Efficiency of leading fuel cell types Theoretical maximum efficiency The energy efficiency of a system or device that converts energy is measured by the ratio of the amount of useful energy put out by the system ("output energy") to the total amount of energy that is put in ("input energy") or by useful output energy as a percentage of the total input energy. In the case of fuel cells, useful output energy is measured in electrical energy produced by the system. Input energy is the energy stored in the fuel. According to the U.S. Department of Energy, fuel cells are generally between 40 and 60% energy efficient. This is higher than some other systems for energy generation. For example, the typical internal combustion engine of a car is about 25% energy efficient. In combined heat and power (CHP) systems, the heat produced by the fuel cell is captured and put to use, increasing the efficiency of the system to up to 85–90%. The theoretical maximum efficiency of any type of power generation system is never reached in practice, and it does not consider other steps in power generation, such as production, transportation and storage of fuel and conversion of the electricity into mechanical power. However, this calculation allows the comparison of different types of power generation. The theoretical maximum efficiency of a fuel cell approaches 100%, while the theoretical maximum efficiency of internal combustion engines is approximately 58%. In practice In a fuel cell vehicle the tank-to-wheel efficiency is greater than 45% at low loads and shows average values of about 36% when a driving cycle like the NEDC (New European Driving Cycle) is used as test procedure. The comparable NEDC value for a Diesel vehicle is 22%. In 2008 Honda released a demonstration fuel cell electric vehicle (the Honda FCX Clarity) with fuel stack claiming a 60% tank-to-wheel efficiency. It is also important to take losses due to fuel production, transportation, and storage into account. Fuel cell vehicles running on compressed hydrogen may have a power-plant-to-wheel efficiency of 22% if the hydrogen is stored as high-pressure gas, and 17% if it is stored as liquid hydrogen. Fuel cells cannot store energy like a battery, except as hydrogen, but in some applications, such as stand-alone power plants based on discontinuous sources such as solar or wind power, they are combined with electrolyzers and storage systems to form an energy storage system. As of 2019, 90% of hydrogen was used for oil refining, chemicals and fertilizer production, and 98% of hydrogen is produced by steam methane reforming, which emits carbon dioxide. The overall efficiency (electricity to hydrogen and back to electricity) of such plants (known as round-trip efficiency), using pure hydrogen and pure oxygen can be "from 35 up to 50 percent", depending on gas density and other conditions. The electrolyzer/fuel cell system can store indefinite quantities of hydrogen, and is therefore suited for long-term storage. Solid-oxide fuel cells produce heat from the recombination of the oxygen and hydrogen. The ceramic can run as hot as 800 degrees Celsius. This heat can be captured and used to heat water in a micro combined heat and power (m-CHP) application. When the heat is captured, total efficiency can reach 80–90% at the unit, but does not consider production and distribution losses. CHP units are being developed today for the European home market. Professor Jeremy P. Meyers, in the Electrochemical Society journal Interface in 2008, wrote, "While fuel cells are efficient relative to combustion engines, they are not as efficient as batteries, primarily due to the inefficiency of the oxygen reduction reaction (and ... the oxygen evolution reaction, should the hydrogen be formed by electrolysis of water).... [T]hey make the most sense for operation disconnected from the grid, or when fuel can be provided continuously. For applications that require frequent and relatively rapid start-ups ... where zero emissions are a requirement, as in enclosed spaces such as warehouses, and where hydrogen is considered an acceptable reactant, a [PEM fuel cell] is becoming an increasingly attractive choice [if exchanging batteries is inconvenient]". In 2013 military organizations were evaluating fuel cells to determine if they could significantly reduce the battery weight carried by soldiers. Applications Power Stationary fuel cells are used for commercial, industrial and residential primary and backup power generation. Fuel cells are very useful as power sources in remote locations, such as spacecraft, remote weather stations, large parks, communications centers, rural locations including research stations, and in certain military applications. A fuel cell system running on hydrogen can be compact and lightweight, and have no major moving parts. Because fuel cells have no moving parts and do not involve combustion, in ideal conditions they can achieve up to 99.9999% reliability. This equates to less than one minute of downtime in a six-year period. Since fuel cell electrolyzer systems do not store fuel in themselves, but rather rely on external storage units, they can be successfully applied in large-scale energy storage, rural areas being one example. There are many different types of stationary fuel cells so efficiencies vary, but most are between 40% and 60% energy efficient. However, when the fuel cell's waste heat is used to heat a building in a cogeneration system this efficiency can increase to 85%. This is significantly more efficient than traditional coal power plants, which are only about one third energy efficient. Assuming production at scale, fuel cells could save 20–40% on energy costs when used in cogeneration systems. Fuel cells are also much cleaner than traditional power generation; a fuel cell power plant using natural gas as a hydrogen source would create less than one ounce of pollution (other than ) for every 1,000 kW·h produced, compared to 25 pounds of pollutants generated by conventional combustion systems. Fuel Cells also produce 97% less nitrogen oxide emissions than conventional coal-fired power plants. One such pilot program is operating on Stuart Island in Washington State. There the Stuart Island Energy Initiative has built a complete, closed-loop system: Solar panels power an electrolyzer, which makes hydrogen. The hydrogen is stored in a tank at , and runs a ReliOn fuel cell to provide full electric back-up to the off-the-grid residence. Another closed system loop was unveiled in late 2011 in Hempstead, NY. Fuel cells can be used with low-quality gas from landfills or waste-water treatment plants to generate power and lower methane emissions. A 2.8 MW fuel cell plant in California is said to be the largest of the type. Small-scale (sub-5kWhr) fuel cells are being developed for use in residential off-grid deployment. Cogeneration Combined heat and power (CHP) fuel cell systems, including micro combined heat and power (MicroCHP) systems are used to generate both electricity and heat for homes (see home fuel cell), office building and factories. The system generates constant electric power (selling excess power back to the grid when it is not consumed), and at the same time produces hot air and water from the waste heat. As the result CHP systems have the potential to save primary energy as they can make use of waste heat which is generally rejected by thermal energy conversion systems. A typical capacity range of home fuel cell is 1–3 kWel, 4–8 kWth. CHP systems linked to absorption chillers use their waste heat for refrigeration. The waste heat from fuel cells can be diverted during the summer directly into the ground providing further cooling while the waste heat during winter can be pumped directly into the building. The University of Minnesota owns the patent rights to this type of system Co-generation systems can reach 85% efficiency (40–60% electric and the remainder as thermal). Phosphoric-acid fuel cells (PAFC) comprise the largest segment of existing CHP products worldwide and can provide combined efficiencies close to 90%. Molten carbonate (MCFC) and solid-oxide fuel cells (SOFC) are also used for combined heat and power generation and have electrical energy efficiencies around 60%. Disadvantages of co-generation systems include slow ramping up and down rates, high cost and short lifetime. Also their need to have a hot water storage tank to smooth out the thermal heat production was a serious disadvantage in the domestic market place where space in domestic properties is at a great premium. Delta-ee consultants stated in 2013 that with 64% of global sales the fuel cell micro-combined heat and power passed the conventional systems in sales in 2012. The Japanese ENE FARM project will pass 100,000 FC mCHP systems in 2014, 34.213 PEMFC and 2.224 SOFC were installed in the period 2012–2014, 30,000 units on LNG and 6,000 on LPG. Fuel cell electric vehicles (FCEVs) Automobiles By year-end 2019, about 18,000 FCEVs had been leased or sold worldwide. Three fuel cell electric vehicles have been introduced for commercial
in relation to the Soviet Union during the Cold War, but it can refer more generally to similar international relations, such as Denmark's attitude toward Germany between 1871 and 1945, or the policies of the Swiss government towards Nazi Germany until the end of World War II. Origin and international usage In Germany, the term was used mainly by proponents of closer adaptation to US policies, chiefly Franz Josef Strauss, but was initially coined in scholarly debate, and made known by the German political scientists Walter Hallstein and Richard Löwenthal, reflecting feared effects of withdrawal of US troops from Germany. It came to be used in the debate of the NATO countries in response to Willy Brandt's attempts to normalise relations with East Germany, and the following widespread scepticism in Germany against NATO's Dual-Track Decision. Later, after the fall of the Soviet Union, the term has been used in Finland for the post-1968 radicalisation in the latter half of the Urho Kekkonen era. United States foreign policy experts consistently feared that Western Europe and Japan would be Finlandized by the Soviet Union, leading to a situation in which these key allies would no longer support the United States against the Soviet Union. The theory of bandwagoning provided support for the idea that if the United States was not able to provide strong and credible support for the anti-communist positions of its allies, NATO and the U.S.–Japan alliance could collapse. The term has also been used in discussing other countries, for example as a potential outcome of the Russia–Ukraine war. Finnish perception Finns have, and had, a wide variety of reactions to the term "Finlandization" Some have perceived the term as blunt criticism, stemming from an inability to understand the practicalities of how a small nation needs to deal with an adjacent superpower without losing its sovereignty. These practicalities existed primarily because of the lingering effect of Russian rule in the time before the Finns first gained sovereignty; and because of the precarious power balance eastwards, springing from a geographically extended yet sparsely populated state with a traditionally imperialist superpower right across the border. The reason Finland engaged in Finlandization was primarily Realpolitik: to survive. On the other hand, the threat of the Soviet Union was used also in Finland's domestic politics in a way that possibly deepened Finlandization (playing the so-called ). Finland made such a deal with Joseph Stalin's government in the late 1940s, and it was largely respected by both parties—and to the gain of both parties—until the fall of the Soviet Union in 1991. While the Finnish political and intellectual elite mostly understood the term to refer more to the foreign policy problems of other countries, and meant mostly for domestic consumption in the speaker's own country, many ordinary Finns considered the term highly offensive. The Finnish political cartoonist Kari Suomalainen once explained Finlandization as "the art of bowing to the East without mooning the West". Historical background Finland's foreign
widespread scepticism in Germany against NATO's Dual-Track Decision. Later, after the fall of the Soviet Union, the term has been used in Finland for the post-1968 radicalisation in the latter half of the Urho Kekkonen era. United States foreign policy experts consistently feared that Western Europe and Japan would be Finlandized by the Soviet Union, leading to a situation in which these key allies would no longer support the United States against the Soviet Union. The theory of bandwagoning provided support for the idea that if the United States was not able to provide strong and credible support for the anti-communist positions of its allies, NATO and the U.S.–Japan alliance could collapse. The term has also been used in discussing other countries, for example as a potential outcome of the Russia–Ukraine war. Finnish perception Finns have, and had, a wide variety of reactions to the term "Finlandization" Some have perceived the term as blunt criticism, stemming from an inability to understand the practicalities of how a small nation needs to deal with an adjacent superpower without losing its sovereignty. These practicalities existed primarily because of the lingering effect of Russian rule in the time before the Finns first gained sovereignty; and because of the precarious power balance eastwards, springing from a geographically extended yet sparsely populated state with a traditionally imperialist superpower right across the border. The reason Finland engaged in Finlandization was primarily Realpolitik: to survive. On the other hand, the threat of the Soviet Union was used also in Finland's domestic politics in a way that possibly deepened Finlandization (playing the so-called ). Finland made such a deal with Joseph Stalin's government in the late 1940s, and it was largely respected by both parties—and to the gain of both parties—until the fall of the Soviet Union in 1991. While the Finnish political and intellectual elite mostly understood the term to refer more to the foreign policy problems of other countries, and meant mostly for domestic consumption in the speaker's own country, many ordinary Finns considered the term highly offensive. The Finnish political cartoonist Kari Suomalainen once explained Finlandization as "the art of bowing to the East without mooning the West".
strong belief in the efficacy of the free market. He believed in what Rachel White Scheuering calls "free-market environmentalism": that market principles and incentives should be sufficient to lead to the protection of the environment and conservation of resources. Regular themes in his articles have been energy, oil embargoes, OPEC, Iran, and rising prices. Throughout the 1970s, for example, he downplayed the idea of an energy crisis and said it was largely a media event. In several papers in the 1990s and 2000s he struck up other positions against the mainstream, questioning the link between UV-B and melanoma rates, and that between CFCs and stratospheric ozone loss. In October 1967, Singer wrote an article for The Washington Post from the perspective of 2007. His predictions included that planets had been explored but not colonized, and although rockets had become more powerful they had not replaced aircraft and ramjet vehicles. None of the fundamental laws of physics had been overturned. There was increased reliance on the electronic computer and data processor; the most exciting development was the increase in human intellect by direct electronic storage of information in the brain—the coupling of the brain to an external computer, thereby gaining direct access to an information library. He debated the astronomer Carl Sagan on ABC's Nightline, regarding the possible environmental effects of the Kuwaiti oil fires. Sagan argued that if enough fire-fighting teams were not assembled in short order, and if many fires were left to burn over a period of months to possibly a year, the smoke might loft into the upper atmosphere and lead to massive agricultural failures over South Asia. Singer argued that it would rise to then be rained out after a few days. In fact, both Sagan and Singer were incorrect; smoke plumes from the fires rose to 10,000–12,000 feet and lingered for nearly a month, but despite absorbing 75–80% of the sun's radiation in the Persian Gulf area the plumes had little global effect. The public debates in which Singer received most criticism have been about second-hand smoke and global warming. He questioned the link between second-hand smoke and lung cancer, and was an outspoken opponent of the mainstream scientific view on climate change; he argued there is no evidence that increases in carbon dioxide produced by human beings is causing global warming and that the temperature of the earth has always varied. A CBC Fifth Estate documentary in 2006 linked these two debates, naming Singer as a scientist who has acted as a consultant to industry in both areas, either directly or through a public relations firm. Naomi Oreskes and Erik Conway named Singer in their book, Merchants of Doubt, as one of three contrarian physicists—along with Fred Seitz and Bill Nierenberg—who regularly injected themselves into the public debate about contentious scientific issues, positioning themselves as skeptics, their views gaining traction because the media gives them equal time out of a sense of fairness. Second-hand smoke According to David Biello and John Pavlus in Scientific American, Singer was best known for his denial of the health risks of passive smoking. He was involved in 1994 as writer and reviewer of a report on the issue by the Alexis de Tocqueville Institution, where he was a senior fellow. The report criticized the Environmental Protection Agency (EPA) for their 1993 study about the cancer risks of passive smoking, calling it "junk science". Singer told CBC's The Fifth Estate in 2006 that he stood by the position that the EPA had "cooked the data" to show that second-hand smoke causes lung cancer. CBC said that tobacco money had paid for Singer's research and for his promotion of it, and that it was organized by APCO. Singer told CBC it made no difference where the money came from. "They don't carry a note on a dollar bill saying 'This comes from the tobacco industry,'" he said. "In any case I was not aware of it, and I didn't ask APCO where they get their money. That's not my business." Global warming In a 2003 letter to the Financial Times, Singer wrote that "there is no convincing evidence that the global climate is actually warming." In 2006, the CBC's Fifth Estate named Singer as one of a small group of scientists who have created what the documentary called a stand-off that is undermining the political response to global warming. The following year he appeared on the British Channel 4 documentary The Great Global Warming Swindle. Singer argues there is no evidence that the increases in carbon dioxide produced by humans cause global warming, and that if temperatures do rise it will be good for humankind. He told CBC: "It was warmer a thousand years ago than it is today. Vikings settled Greenland. Is that good or bad? I think it's good. They grew wine in England, in northern England. I think that's good. At least some people think so." "We are certainly putting more carbon dioxide in the atmosphere," he told The Daily Telegraph in 2009. "However there is no evidence that this high CO2 is making a detectable difference. It should in principle, however the atmosphere is very complicated and one cannot simply argue that just because CO2 is a greenhouse gas it causes warming." He believes that radical environmentalists are exaggerating the dangers. "The underlying effort here seems to be to use global warming as an excuse to cut down the use of energy," he said. "It's very simple: if you cut back the use of energy, then you cut back economic growth. And believe it or not, there are people in the world who believe we have gone too far in economic growth." Singers's opinions conflict with the scientific consensus on climate change, where there is overwhelming consensus for anthropogenic global warming, and a decisive link between carbon dioxide concentration and global average temperatures, as well as consensus that such a change to the climate will have dangerous consequences. In 2005 Mother Jones magazine described Singer as a "godfather of global warming denial." However, Singer characterizes himself as a "skeptic" rather than a "denier" of global climate change. SEPP and funding In 1990 Singer set up the Science & Environmental Policy Project (SEPP) to argue against preventive measures against global warming. After the 1991 United Nations Conference on Environment and Development, the Earth Summit, Singer started writing and speaking out to cast doubt on the science. He predicted disastrous economic damage from any restrictions on fossil fuel use, and argued that the natural world and its weather patterns are complex and ill-understood, and that little is known about the dynamics of heat exchange from the oceans to the atmosphere, or the role of clouds. As the scientific consensus grew, he continued to argue from a skeptical position. He has repeatedly criticized the climate models that predict global warming. In 1994 he compared model results to observed temperatures and found that the predicted temperatures for 1950–1980 deviated from the temperatures that had actually occurred, from which he concluded in his regular column in The Washington Times—with the headline that day "Climate Claims Wither under the Luminous Lights of Science"—that climate models are faulty. In 2007 he collaborated on a study that found tropospheric temperature trends of "Climate of the 20th Century" models differed from satellite observations by twice the model mean uncertainty. Rachel White Scheuering writes that, when SEPP began, it was affiliated with the Washington Institute for Values in Public Policy, a think tank founded by Unification Church leader Sun Myung Moon. A 1990 article for the Cato Institute identifies Singer as the director of the science and environmental policy project at the Washington Institute for Values in Public Policy, on leave from the University of Virginia. Scheuering writes that Singer had cut ties with the institute, and is funded by foundations and oil companies. She writes that he has been a paid consultant for many years for ARCO, ExxonMobil, Shell, Sun Oil Company, and Unocal, and that SEPP has received grants from ExxonMobil. Singer has said his financial relationships do not influence his research. Scheuering argues that his conclusions concur with the economic interests of the companies that pay him, in that the companies want to see a reduction in environmental regulation. In August 2007 Newsweek reported that in April 1998 a dozen people from what it called "the denial machine" met at the American Petroleum Institute's Washington headquarters. The meeting included Singer's group, the George C. Marshall Institute, and ExxonMobil. Newsweek said that, according to an eight-page memo that was leaked, the meeting proposed a $5-million campaign to convince the public that the science of global warming was controversial and uncertain. The plan was leaked to the press and never implemented. The week after the story, Newsweek published a contrary view from Robert Samuelson, one of its columnists, who said the story of an industry-funded denial machine was contrived and fundamentally misleading. ABC News reported in March 2008 that Singer said he is not on the payroll of the energy industry, but he acknowledged that SEPP had received one unsolicited charitable donation of $10,000 from ExxonMobil, and that it was one percent of all donations received. Singer said that his connection to Exxon
control of the group. In November 1957 Singer and other scientists at the university successfully designed and fired three new "Oriole" rockets off the Virginia Capes. The rockets weighed less than and could be built for around $2000. Fired from a converted Navy LSM, they could reach an altitude of and had a complete telemetry system to send back information on cosmic, ultraviolet and X-rays. Singer said that the firings placed "the exploration of outer space with high altitude rockets on the same basis, cost-wise and effort-wise, as low atmosphere measurements with weather balloons. From now on, we can fire thousands of these rockets all over the world with very little cost." In February 1958, when he was head of the cosmic ray group of the University of Maryland's physics department, he received a special commendation from President Eisenhower for "outstanding achievements in the development of satellites for scientific purposes." In April 1958, he was appointed as a consultant to the House Select Committee on Astronautics and Space Exploration, which was preparing to hold hearings on President Eisenhower's proposal for a new agency to handle space research, and a month later received the Ohio State University's Distinguished Alumnus Award. He became a full professor at Maryland in 1959, and was chosen that year by the United States Junior Chamber of Commerce as one of the country's ten outstanding young men. In a January 1960 presentation to the American Physical Society, Singer sketched out his vision of what the environment around the earth might consist of, extending up to into space. He became known for his early predictions about the properties of the electrical particles trapped around the earth, which were partly verified by later discoveries in satellite experiments. In December 1960, he suggested the existence of a shell of visible dust particles around the earth some 600 to in space, beyond which there was a layer of smaller particles, a micrometre or less in diameter, extending 2,000 to . In March 1961 Singer and another University of Maryland physicist, E. J. Opik, were given a $97,000 grant by NASA to conduct a three-year study of interplanetary gas and dust. 1960: Artificial Phobos hypothesis In a 1960 Astronautics newsletter, Singer commented on Iosif Shklovsky's hypothesis that the orbit of the Martian moon Phobos suggests that it is hollow, which implies it is of artificial origin. Singer wrote: "My conclusion there is, and here I back Shklovsky, that if the satellite is indeed spiraling inward as deduced from astronomical observation, then there is little alternative to the hypothesis that it is hollow and therefore martian made. The big 'if' lies in the astronomical observations; they may well be in error. Since they are based on several independent sets of measurements taken decades apart by different observers with different instruments, systematic errors may have influenced them." Later measurements confirmed Singer's big "if" caveat: Shklovsky overestimated Phobos' rate of altitude loss due to bad early data. Photographs by probes beginning in 1972 show a natural stony surface with craters. Ufologists continue to present Singer as an unconditional supporter of Shklovsky's artificial Phobos hypothesis. Time magazine wrote in 1969 that Singer had had a lifelong fascination with Phobos and Mars's second moon, Deimos. He told Time it might be possible to pull Deimos into the Earth's orbit so it could be examined. During an international space symposium in May 1966, attended by space scientists from the United States and Soviet Union, he first proposed that manned landings on the Martian moons would be a logical step after a manned landing on the Earth's moon. He pointed out that the very small sizes of Phobos and Deimos—approximately and in diameter and sub milli-g surface gravity—would make it easier for a spacecraft to land and take off again. 1962: National Weather Center and University of Miami In 1962, on leave from the university, Singer was named as the first director of meteorological satellite services for the National Weather Satellite Center, now part of the National Oceanic and Atmospheric Administration, and directed a program for using satellites to forecast the weather. He stayed there until 1964. He told Time magazine in 1969 that he enjoyed moving around. "Each move gave me a completely new perspective," he said. "If I had sat still, I'd probably still be measuring cosmic rays, the subject of my thesis at Princeton. That's what happens to most scientists." When he stepped down as director he received a Department of Commerce Gold Medal award for Distinguished Federal Service. In 1964, he became the first dean of the School of Environmental and Planetary Sciences at the University of Miami in 1964, the first school of its kind in the country, dedicated to space-age research. In December 1965, The New York Times reported on a conference Singer hosted in Miami Beach during which five groups of scientists, working independently, presented research identifying what they believed was the remains of a primordial flash that occurred when the universe was born. 1967: Department of Interior and EPA In 1967 he accepted the position of deputy assistant secretary with the U.S. Department of the Interior, where he was in charge of water quality and research. When the U.S. Environmental Protection Agency was created on 1970, he became its deputy assistant administrator of policy. 1971–1994 University of Virginia Singer accepted a professorship in Environmental Sciences at the University of Virginia in 1971, a position he held until 1994, where he taught classes on environmental issues such as ozone depletion, acid rain, climate change, population growth, and public policy issues related to oil and energy. In 1987 he took up a two-year post as chief scientist at the Department of Transportation, and in 1989 joined the Institute of Space Science and Technology in Gainesville, Florida where he contributed to a paper on the results from the Interplanetary Dust Experiment using data from the Long Duration Exposure Facility satellite. When he retired from Virginia in 1994, he became Distinguished Research Professor at the Institute for Humane Studies at George Mason University until 2000. Naomi Oreskes and Erik Conway say that Singer was involved in the Reagan administration's efforts to prevent regulatory action to reduce acid rain. Public debates Writing Throughout his academic career Singer wrote frequently in the mainstream press, including The New York Times, The Washington Post, and Wall Street Journal, often striking up positions disputing mainstream thinking. His overall position was one of distrust of federal regulations and a strong belief in the efficacy of the free market. He believed in what Rachel White Scheuering calls "free-market environmentalism": that market principles and incentives should be sufficient to lead to the protection of the environment and conservation of resources. Regular themes in his articles have been energy, oil embargoes, OPEC, Iran, and rising prices. Throughout the 1970s, for example, he downplayed the idea of an energy crisis and said it was largely a media event. In several papers in the 1990s and 2000s he struck up other positions against the mainstream, questioning the link between UV-B and melanoma rates, and that between CFCs and stratospheric ozone loss. In October 1967, Singer wrote an article for The Washington Post from the perspective of 2007. His predictions included that planets had been explored but not colonized, and although rockets had become more powerful they had not replaced aircraft and ramjet vehicles. None of the fundamental laws of physics had been overturned. There was increased reliance on the electronic computer and data processor; the most exciting development was the increase in human intellect by direct electronic storage of information in the brain—the coupling of the brain to an external computer, thereby gaining direct access to an information library. He debated the astronomer Carl Sagan on ABC's Nightline, regarding the possible environmental effects of the Kuwaiti oil fires. Sagan argued that if enough fire-fighting teams were not assembled in short order, and if many fires were left to burn over a period of months to possibly a year, the smoke might loft into the upper atmosphere and lead to massive agricultural failures over South Asia. Singer argued that it would rise to then be rained out after a few days. In fact, both Sagan and Singer were incorrect; smoke plumes from the fires rose to 10,000–12,000 feet and lingered for nearly a month, but despite absorbing 75–80% of the sun's radiation in the Persian Gulf area the plumes had little global effect. The public debates in which Singer received most criticism have been about second-hand smoke and global warming. He questioned the link between second-hand smoke and lung cancer, and was an outspoken opponent of the mainstream scientific view on climate change; he argued there is no evidence that increases in carbon dioxide produced by human beings is causing global warming and that the temperature of the earth has always varied. A CBC Fifth Estate documentary in 2006 linked these two debates, naming Singer as a scientist who has acted as a consultant to industry in both areas, either directly or through a public relations firm. Naomi Oreskes and Erik Conway named Singer in their book, Merchants of Doubt, as one of three contrarian physicists—along with Fred Seitz and Bill Nierenberg—who regularly injected themselves into the public debate about contentious scientific issues, positioning themselves as skeptics, their views gaining traction because the media gives them equal time out of a sense of fairness. Second-hand smoke According to David Biello and John Pavlus in Scientific American, Singer was best known for his denial of the health risks of passive smoking. He was involved in 1994 as writer and reviewer of a report on the issue by the Alexis de Tocqueville Institution, where he was a senior fellow. The report criticized the Environmental Protection Agency (EPA) for their 1993 study about the cancer risks of passive smoking, calling it "junk science". Singer told CBC's The Fifth Estate in 2006 that he stood by the position that the EPA had "cooked the data" to show that second-hand smoke causes lung cancer. CBC said that tobacco money had paid for Singer's research and for his promotion of it, and that it was organized by APCO. Singer told CBC it made no difference where the money came from. "They don't carry a note on a dollar bill saying 'This comes from the tobacco industry,'" he said. "In any case I was not aware of it, and I didn't ask APCO where they get their money. That's not my business." Global warming In a 2003 letter to the Financial Times, Singer wrote that "there is no convincing evidence that the global climate is actually warming." In 2006, the CBC's Fifth Estate named Singer as one of a small group of scientists who have created what the documentary called a stand-off that is undermining the political response to global warming. The following year he appeared on the British Channel 4 documentary The Great Global Warming Swindle. Singer argues there is no evidence that the increases in carbon dioxide produced by humans cause global warming, and that if temperatures do rise it will be good for humankind. He told CBC: "It was warmer a thousand years ago than it is today. Vikings settled Greenland. Is that good or bad? I think it's good. They grew wine in England, in northern England. I think that's good. At least some people think so." "We are certainly putting more carbon dioxide in the atmosphere," he told The Daily Telegraph in 2009. "However there is no evidence that this high CO2 is making a detectable difference. It should in principle, however the atmosphere is very complicated and one cannot simply argue that just because CO2 is a greenhouse gas it causes warming." He believes that radical environmentalists are exaggerating the dangers. "The underlying effort here seems to be to use global warming as an excuse to cut down the use of energy," he said. "It's very simple: if you cut back the use of energy, then you cut back economic growth. And believe it or not, there are people in the world who believe we have gone too far in economic growth." Singers's opinions conflict with the scientific consensus on climate change, where there is overwhelming consensus for anthropogenic global warming, and a decisive link between carbon dioxide concentration and global average temperatures, as well as consensus that such a change to the climate will have dangerous consequences. In 2005 Mother Jones magazine described Singer as a "godfather of global warming denial." However, Singer characterizes himself as a "skeptic" rather than a "denier" of global climate change. SEPP and funding In 1990 Singer set up the Science & Environmental Policy Project (SEPP) to argue against preventive measures against global warming. After the 1991 United Nations Conference on Environment and Development, the Earth Summit, Singer started writing and speaking out to cast doubt on the science. He predicted disastrous economic damage from any restrictions on fossil fuel use, and argued that the natural world and its weather patterns are complex and ill-understood, and that little is known about the dynamics of heat exchange from the oceans to the atmosphere, or the role of clouds. As the scientific consensus grew, he continued to argue from a skeptical position. He has repeatedly criticized the climate models that predict global warming. In 1994 he compared model results to observed temperatures and found that the predicted temperatures for 1950–1980 deviated from the temperatures that had actually occurred, from which he concluded in his regular column in The Washington Times—with the headline that day "Climate Claims Wither under the Luminous Lights of Science"—that climate models are faulty. In 2007 he collaborated on a study that found tropospheric temperature trends of "Climate of the 20th Century" models differed from satellite observations by twice the model mean uncertainty. Rachel White Scheuering writes that, when SEPP began, it was affiliated with the Washington Institute for Values in Public Policy, a think tank founded by Unification Church leader Sun Myung Moon. A 1990 article for the Cato Institute identifies Singer as the director of the science and environmental policy project at the Washington Institute for Values in Public Policy, on leave from the University of Virginia. Scheuering writes that Singer had cut ties with the institute, and is funded by foundations and oil companies. She writes that he has been a paid consultant for many years for ARCO, ExxonMobil, Shell, Sun
Kornbluth) tied in 1973 and "Fermi and Frost" won in 1986. Another award-winning novel is Jem (1980), winner of the National Book Award. His works include not only science fiction, but also articles for Playboy and Family Circle magazines and nonfiction books. For a time, he was the official authority for Encyclopædia Britannica on the subject of Emperor Tiberius. (He wrote a book on the subject of Tiberius, as "Ernst Mason".) Some of his short stories take a satirical look at consumerism and advertising in the 1950s and 1960s: "The Wizards of Pung's Corners", where flashy, over-complex military hardware proved useless against farmers with shotguns, and "The Tunnel under the World", where an entire community of seeming-humans is held captive by advertising researchers. ("The Wizards of Pung's Corners" was freely translated into Chinese and then freely translated back into English as "The Wizard-Masters of Peng-Shi Angle" in the first edition of Pohlstars (1984)). In his 1969 novel, "The Age of the Pussyfoot", Pohl speculated about a society where everyone could access knowledge and the means to communicate with others through a small handheld device similar to a smartphone. Although he set the novel 500 years in the future, he noted in an afterword that it might be as few as fifty years away. A short story "Day Million" suggested that society in the year 2737 might be as alien to us as contemporary society would be to someone from ancient times. Pohl's Law is either "No one is ever ready for anything" or "Nothing is so good that somebody, somewhere will not hate it". He was a frequent guest on Long John Nebel's radio show from the 1950s to the early 1970s, and an international lecturer. Starting in 1995, when the Theodore Sturgeon Memorial Award became a juried award, Pohl served first with James Gunn and Judith Merril, and since then with several others until retiring in 2013. Pohl was associated with Gunn since the 1940s, becoming involved in 1975 with what later became Gunn's Center for the Study of Science Fiction at the University of Kansas. There, he presented many talks, recorded a discussion about "The Ideas in Science Fiction" in 1973 for the Literature of Science Fiction Lecture Series, and served the Intensive Institute on Science Fiction and Science Fiction Writing Workshop. Pohl received the second annual J. W. Eaton Lifetime Achievement Award in Science Fiction from the University of California, Riverside Libraries at the 2009 Eaton Science Fiction Conference, "Extraordinary Voyages: Jules Verne and Beyond". Pohl's work has been an influence on a wide variety of other science fiction writers, some of whom appear in the 2010 anthology, Gateways: Original New Stories Inspired by Frederik Pohl, edited by Elizabeth Anne Hull. Pohl's last novel, All the Lives He Led, was released on April 12, 2011. By the time of his death, he was working to finish a second volume of his autobiography The Way the Future Was (1979), along with an expanded version of the latter. In July 2020, an academic description reported on the nature and rise of the "robot prosumer", derived from modern-day technology and related participatory culture, that, in turn, was substantially predicted earlier by science fiction writers, most notably by Pohl. Collaborative work In addition to his solo writings, Pohl was also well known for his collaborations, beginning with his first published story. Before and following the war, Pohl did a series of collaborations with his friend Cyril Kornbluth, including a large number of short stories and several novels, among them The Space Merchants, a dystopian satire of a world ruled by the advertising agencies. In the mid-1950s, he began a long-running collaboration with Jack Williamson, eventually resulting in 10 collaborative novels over five decades. Other collaborations included a novel with Lester Del Rey, Preferred Risk (1955). This novel was solicited for a contest by Galaxy–Simon & Schuster when the judges did not think any of the contest submissions was good enough to win their contest. It was published under the joint pseudonym Edson McCann. He also collaborated with Thomas T. Thomas on a sequel to his award-winning novel Man Plus. He wrote two short stories with Isaac Asimov in the 1940s, both published in 1950. He finished a novel begun by Arthur C. Clarke, The Last Theorem, which was published on August 5, 2008. Death Pohl went to the hospital in respiratory distress on the morning of September 2, 2013, and died that afternoon at the age of 93. Works Notes References Further reading Critical studies, reviews and biography Frederik Pohl by Michael R. Page (2015). University of Illinois Press Derivative works Gateways: Original New Stories Inspired by Frederik Pohl (2010), edited by Elizabeth Anne Hull. Elizabeth Anne Hull, Introduction David Brin, "Shoresteading" Phyllis and Alex Eisenstein, "Von Neumann's Bug" Isaac Asimov, Appreciation Joe Haldeman, "Sleeping Dogs" Larry Niven, "Gates (Variations)" Gardner Dozois, Appreciation James Gunn, "Tales from the Spaceship Geoffrey" Gregory Benford and Elisabeth Malartre, "Shadows of the Lost" Connie Willis, Appreciation Vernor Vinge, "A Preliminary Assessment of the Drake Equation, Being an Excerpt from the Memories of Star Captain Y.T. Lee" Greg Bear, "Warm Sea" Robert J. Sawyer, Appreciation Frank M. Robinson, "The Errand Boy" Gene Wolfe, "King Rat" Robert Silverberg, Appreciation Harry Harrison, "The Stainless Steel Rat and the Pernicious Porcuswine" Jody Lynn Nye, "Virtually, A Cat" David Marusek, Appreciation Brian W. Aldiss, "The First-Born" Ben Bova, "Scheherezade and the Storytellers" Joan Slonczewski, Appreciation Sheri S. Tepper, "The Flight of the Denartesestel Radichan" Neil Gaiman, "The [Backspace] Merchants" Emily Pohl-Weary, Appreciation Mike Resnick, "On Safari" Cory Doctorow, "Chicken Little" James Frenkel, Afterword External links The Way the Future Blogs – by Pohl, January 2009 to September 2013; by his widow Elizabeth Anne Hull (including 4 filed under three pseudonyms) 1919 births 2013 deaths 21st-century American non-fiction writers 20th-century American novelists 21st-century American novelists American communists American editors American male non-fiction writers American male novelists American non-fiction environmental writers American science fiction writers American speculative fiction critics American speculative fiction editors Brooklyn Technical High School alumni Copywriters Futurians Hugo Award-winning fan writers Hugo Award-winning writers Literary agents Military personnel from New
descent) and Anna Jane Mason. Pohl Sr. held various jobs, and the Pohls lived in such wide-flung locations as Texas, California, New Mexico, and the Panama Canal Zone. The family settled in Brooklyn when Pohl was around seven. He attended Brooklyn Technical High School, and dropped out at 17. In 2009, he was awarded an honorary diploma from Brooklyn Tech. While a teenager, he co-founded the New York–based Futurians fan group, and began lifelong friendships with Donald Wollheim, Isaac Asimov, and others who would become important writers and editors. Pohl later said that other "friends came and went and were gone, [but] many of the ones I met through fandom were friends all their lives – Isaac, Damon Knight, Cyril Kornbluth, Dirk Wylie, [and] Dick Wilson. In fact, there are one or two – Jack Robins, Dave Kyle – whom I still count as friends, seventy-odd years later...." He published a science-fiction fanzine called Mind of Man. In 1936, Pohl joined the Young Communist League because of its positions for unions and against racial prejudice, Adolf Hitler, and Benito Mussolini. He became president of the local Flatbush III Branch of the YCL in Brooklyn. Pohl has said that after the Molotov–Ribbentrop Pact of 1939, the party line changed and he could no longer support it, at which point he left. During World War II, Pohl served in the United States Army from April 1943 until November 1945, rising to sergeant as an elite Air Corps weatherman. After training in Illinois, Oklahoma, and Colorado, he was mainly stationed in Italy with the 456th Bombardment Group. Pohl was married five times. His first wife, Leslie Perri, was another Futurian; they were married in August 1940, and divorced in 1944. He then married Dorothy Les Tina in Paris in August 1945 while both were serving in the military in Europe; the marriage ended in 1947. During 1948, he married Judith Merril; they had a daughter, Ann. Pohl and Merril divorced in 1952. In 1953, he married Carol M. Ulf Stanton, with whom he had three children and collaborated on several books; they separated in 1977 and were divorced in 1983. From 1984 until his death, Pohl was married to science-fiction expert and academic Elizabeth Anne Hull. He fathered four children – Ann (m. Walter Weary), Frederik III (born and died in 1954, aged one month), Frederik IV (a Los Angeles-based actor, writer, and producer), and Kathy. Grandchildren include Canadian writer Emily Pohl-Weary and chef Tobias Pohl-Weary. From 1984 on, he lived in Palatine, Illinois, a suburb of Chicago. He was previously a longtime resident of Middletown, New Jersey. Career Early writing Pohl began writing in the late 1930s, using pseudonyms for most of his early works. His first publication was the poem "Elegy to a Dead Satellite: Luna" under the name of Elton Andrews, in the October 1937 issue of Amazing Stories, edited by T. O'Conor Sloane. (Pohl asked readers 30 years later, "we would take it as a personal favor if no one ever looked it up".) His first story, the collaboration with C.M. Kornbluth "Before the Universe", appeared in 1940 under the pseudonym S.D. Gottesman. Editor and agent Pohl started a career as a literary agent in 1937, but it was a sideline for him until after World War II, when he began doing it full-time. Pohl stopped being Asimov's agent—the only one the latter ever had—when he became editor from 1939 to 1943 of two pulp magazines, Astonishing Stories and Super Science Stories. In his autobiography, Pohl said that he stopped editing the two magazines at roughly the time of the German invasion of the Soviet Union in 1941. Stories by Pohl often appeared in these magazines, but never under his own name. Work written in collaboration with Cyril M. Kornbluth was credited to S. D. Gottesman or Scott Mariner; other collaborative work (with any combination of Kornbluth, Dirk Wylie, or Robert A. W. Lownes) was credited to Paul Dennis Lavond. For Pohl's solo work, stories were credited to James MacCreigh (or for one story only, Warren F. Howard.) Works by "Gottesman", "Lavond", and "MacCreigh" continued to appear in
in 2014 for 1939), which was nominally the club fanzine for the LASFS. In the decades that followed, Ackerman amassed an extremely large and complete collection of science fiction, fantasy, and horror film memorabilia, which, until 2002, he maintained in an 18-room home and museum known as the "Son of Ackermansion". (The original Ackermansion where he lived from the early 1950s until the mid-1970s was at 915 S. Sherbourne Drive in Los Angeles; the site is now an apartment building.) This second house, in the Los Feliz district of Los Angeles, contained some 300,000 books and pieces of film and science-fiction memorabilia. From 1951 to 2002, Ackerman entertained some 50,000 fans at open houses - including, on one such evening, a group of 186 fans and professionals that included astronaut Buzz Aldrin. Ackerman was a board member of the Seattle Science Fiction Museum and Hall of Fame (now Museum of Pop Culture), where many items of his collection are now displayed. He knew many of the writers of science fiction in the first half of the twentieth century. As a literary agent, he represented some 200 writers, and he served as agent of record for many long-lost authors, thereby allowing their work to be reprinted in anthologies. He was Ed Wood's "illiterary" agent. Ackerman was credited with nurturing and even inspiring the careers of several early contemporaries like Ray Bradbury, Ray Harryhausen, Charles Beaumont, Marion Zimmer Bradley, and L. Ron Hubbard. He kept all of the stories submitted to his magazine, even the ones he rejected; Stephen King has stated that Ackerman showed up to a King book signing with a copy of a story King had submitted for publication when he was 11. Ackerman had 50 stories published, including collaborations with A. E. van Vogt, Francis Flagg, Robert A. W. Lowndes, Marion Zimmer Bradley, Donald Wollheim and Catherine Moore, and the world's shortest – one letter of the alphabet. His stories have been translated into six languages. Ackerman named the comic-book character Vampirella and wrote the origin story for the comic. He also authored several lesbian stories under the name "Laurajean Ermayne" for Vice Versa and provided publishing assistance in the early days of the Daughters of Bilitis. He was dubbed an "honorary lesbian" at a DOB party. Through his magazine, Famous Monsters of Filmland (1958–1983), Ackerman introduced the history of the science fiction, fantasy, and horror film genres to a generation of young readers. He also contributed to film magazines from all around the world, including the Spanish-language La Cosa: Cine Fantástico magazine from Argentina, where he had a monthly column for more than four years. In the 1960s, Ackerman organized the publication of an English translation in the U.S. of the German science fiction series Perry Rhodan, the longest-running science fiction series in history. These were published by Ace Books from 1969 through 1977. Ackerman's German-speaking wife Wendayne ("Wendy") did most of the translation. The American books were issued with varying frequency from one to as many as four per month. Ackerman also used the paperback series to promote science fiction short stories, including his own on occasion. These "magabooks" or "bookazines" also included a film review section, known as "Scientifilm World", and letters from readers. The American series came to an end when the management of Ace changed, and the new management decided that the series was too juvenile for their taste. The last Ace issue was #118, which corresponded to German issue #126 as some of the Ace editions contained two of the German issues, and three of the German issues had been skipped. Ackerman later published translations of German issues #127 through #145 on his own under the Master Publications imprint. (The original German series continues today and passed issue #2800 in 2015.) Appearances in film, television, and music A lifelong fan of science fiction "B-movies", Ackerman appeared in more than 210 films, including parts in many monster movies and science fiction films (Dracula vs. Frankenstein, The Howling, The Aftermath, Scalps, Return of the Living Dead Part II, Innocent Blood), more traditional "imagi-movies" (The Time Travelers, Future War), spoofs and comedies (Amazon Women on the Moon, The Wizard of Speed and Time, Curse of the Queerwolf, Transylvania Twist, Hard to Die, Nudist Colony of the Dead, Attack of the 60 Foot Centerfold) and at least one major music video (Michael Jackson's Thriller). His Bacon number is 2. In 1961, Ackerman narrated the record Music for Robots created by Frank Allison Coe. The cover featured Ackerman's face superimposed on the robot from the film Tobor the Great. The record was reissued on CD in 2005. Ackerman appears as a character in The Vampire Affair by David McDaniel (a novel in the Man from U.N.C.L.E. series), and Philip José Farmer's novel Image of the Beast, first published as the short story "Blown" in Screw magazine by Al Goldstein. A character based on Ackerman and an analog to the Ackermansion appears in the collaborative novel Fallen Angels written jointly by Larry Niven, Jerry Pournelle, and Michael F. Flynn. "Eccar the Man" is mentioned in The Flying Sorcerers, a novel jointly written by Niven and David Gerrold, which features a number of characters based on notables from the science fiction community. He appeared on the intro track of Ohio horror punk music group Manimals' 1999 album Horrorcore. In 2001, Ackerman played the part of an old wax museum caretaker in the camp comedy film The Double-D Avenger directed by William Winckler and starring Russ Meyer luminaries Kitten Natividad, Haji, and Raven De La Croix. Ackerman played a crazy old man who was in love with Kitten Natividad's character, The Double-D Avenger, and his character also talked to the Frankenstein figure and other wax monsters in the museum's chamber of horrors. Ackerman appeared extensively on-screen discussing his life and the history of science fiction fandom in the 2006 documentary film Finding the Future. In 2007, Roadhouse Films of Canada released a documentary, Famous Monster: Forrest J Ackerman. The documentary, available on DVD only in the UK, airs regularly on the BRAVO channel. In the 2012 action film Premium Rush, the character of the corrupt policeman Bobby Monday (played by Michael Shannon) repeatedly uses the alias "Forrest J Ackerman". In 2013, the science fiction author Jason V Brock released a feature-length documentary about Ackerman called The Ackermonster Chronicles!. Personal life Ackerman had one sibling, a younger brother, Alden Lorraine Ackerman, who was killed at the Battle of the Bulge. Ackerman was married to a German-born teacher and translator, Mathilda Wahrman (1912–1990), whom he met in the early 1950s while she was working in a book store he happened to visit. He eventually dubbed her "Wendayne" or, less formally, "Wendy", by which name she became most generally known within SF and film fandoms, after the character in Peter Pan, his favorite fantasy. Although they went through a period of separation during the late 1950s and early 1960s, they remained officially married until her death: she suffered serious internal injuries when she was violently mugged while visiting Italy in 1990 and irreparable damage to her kidneys led to her death. By choice, they had no children of their own, but Wahrman did have a son by an earlier marriage, Michael Porges, who did not get along with Ackerman and would not live in Ackerman's home. Ackerman was fluent in the international language Esperanto, and claimed to have walked down Hollywood Boulevard arm-in-arm with Leo G. Carroll singing La Espero, the hymn of Esperanto. Ackerman was an atheist at age 15, but did not emphasize that fact in his public life and welcomed people of all faiths as well as no faith into his home and personal circle equally. His first public stance on any political issue was in opposition to the Vietnam War. Death In 2003, Ackerman said, "I aim at hitting 100 and becoming the George Burns of science fiction". His health, however, had been failing. He had had a major heart attack in 1966 and wore a pacemaker thereafter. He was susceptible to infection in his later life and, after one final trip to the hospital in October 2008, informed his best friend and caregiver Joe Moe that he did not want to go on but hoped to live long enough to vote for Barack Obama in the November 2008 presidential election. Ackerman checked himself out of the hospital and refused further treatment, accepting only a hospice service. Honoring his wishes, his friends assisted him in holding what
after the middle initial), on November 24, 1916, in Los Angeles, to Carroll Cridland (née Wyman; 1883–1977) and William Schilling Ackerman (1892–1951). His father, Chief Statistician for the Associated Oil Company, and assistant to the Vice-President in charge of transportation, was from New York and his mother was from Ohio (the daughter of architect George Wyman); she was nine years older than William. Ackerman attended the University of California at Berkeley for a year (1934–1935), then worked as a movie projectionist and at odd jobs with fan friends prior to spending three years in the U.S. Army after enlisting on August 15, 1942, where he rose to the rank of staff sergeant, held the position of editor of his base's newspaper, and passed his entire time in service at Fort MacArthur, California. Career and fandom Ackerman saw his first "imagi-movie" in 1922 (One Glorious Day), purchased his first science fiction magazine, Amazing Stories, in 1926, created the Boys' Scientifiction Club in 1930 ("girl-fans were as rare as unicorn's horns in those days"). He contributed to both of the first science fiction fanzines, The Time Traveller, and the Science Fiction Magazine, published and edited by Shuster and Siegel of Superman fame, in 1932, and by 1933 had 127 correspondents around the world. His name was used for the character of the reporter in the original Superman story "The Reign of the Superman" in issue 3 of Science Fiction magazine. He was one of the early members of the Los Angeles Science Fantasy Society and remained active in it for many decades. He attended the 1st World Science Fiction Convention in 1939, where he wore the first "futuristicostume" (designed and created by his girlfriend Myrtle R. Douglas, better known as Morojo), which sparked decades of fan costuming thereafter, the latest incarnation of which is cosplay. He attended every Worldcon but two thereafter during his lifetime. Ackerman invited Ray Bradbury to attend the Los Angeles Chapter of the Science Fiction League, then meeting weekly at Clifton's Cafeteria in downtown Los Angeles. The club changed its name to the Los Angeles Science Fantasy Society during the period it was meeting at the restaurant. Among the writers frequenting the club were Robert A. Heinlein, Emil Petaja, Fredric Brown, Henry Kuttner, Leigh Brackett, and Jack Williamson. Bradbury often attended meetings with his friend Ray Harryhausen; the two Rays had been introduced to each other by Ackerman. With $90 from Ackerman and Morojo, Bradbury launched a fanzine, Futuria Fantasia, in 1939, which ran for four issues. Ackerman was an early member of the Los Angeles Chapter of the Science Fiction League and became so active in and important to the club that in essence he ran it, including (after the name change) the Los Angeles Science Fantasy Society, a prominent regional fan organization, as well as the National Fantasy Fan Federation (N3F). Together with Morojo, he edited and produced Imagination!, later renamed Voice of the Imagi-Nation (which in 1996 would be awarded the Retro Hugo for Best Fanzine of 1946, and in 2014 for 1939), which was nominally the club fanzine for the LASFS. In the decades that followed, Ackerman amassed an extremely large and complete collection of science fiction, fantasy, and horror film memorabilia, which, until 2002, he maintained in an 18-room home and museum known as the "Son of Ackermansion". (The original Ackermansion where he lived from the early 1950s until the mid-1970s was at 915 S. Sherbourne Drive in Los Angeles; the site is now an apartment building.) This second house, in the Los Feliz district of Los Angeles, contained some 300,000 books and pieces of film and science-fiction memorabilia. From 1951 to 2002, Ackerman entertained some 50,000 fans at open houses - including, on one such evening, a group of 186 fans and professionals that included astronaut Buzz Aldrin. Ackerman was a board member of the Seattle Science Fiction Museum and Hall of Fame (now Museum of Pop Culture), where many items of his collection are now displayed. He knew many of the writers of science fiction in the first half of the twentieth century. As a literary agent, he represented some 200 writers, and he served as agent of record for many long-lost authors, thereby allowing their work to be reprinted in anthologies. He was Ed Wood's "illiterary" agent. Ackerman was credited with nurturing and even inspiring the careers of several early contemporaries like Ray Bradbury, Ray Harryhausen, Charles Beaumont, Marion Zimmer Bradley, and L. Ron Hubbard. He kept all of the stories submitted to his magazine, even the ones he rejected; Stephen King has stated that Ackerman showed up to a King book signing with a copy of a story King had submitted for publication when he was 11. Ackerman had 50 stories published, including collaborations with A. E. van Vogt, Francis Flagg, Robert A. W. Lowndes, Marion Zimmer Bradley, Donald Wollheim and Catherine Moore, and the world's shortest – one letter of the alphabet. His stories have been translated into six languages. Ackerman named the comic-book character Vampirella and wrote the origin story for the comic. He also authored several lesbian stories under the name "Laurajean Ermayne" for Vice Versa and provided publishing assistance in the early days of the Daughters of Bilitis. He was dubbed an "honorary lesbian" at a DOB party. Through his magazine, Famous Monsters of Filmland (1958–1983), Ackerman introduced the history of the science fiction, fantasy, and horror film genres to a generation of young readers. He also contributed to film magazines from all around the world, including the Spanish-language La Cosa: Cine Fantástico magazine from Argentina, where he had a monthly column for more than four years. In the 1960s, Ackerman organized the publication of an English translation in the U.S. of the German science fiction series Perry Rhodan, the longest-running science fiction series in history. These were published by Ace Books from 1969 through 1977. Ackerman's German-speaking wife Wendayne ("Wendy") did most of the translation. The American books were issued with varying frequency from one to as many as four per month. Ackerman also used the paperback series to promote science fiction short stories, including his own on occasion. These "magabooks" or "bookazines" also included a film review section, known as "Scientifilm World", and letters from readers. The American series came to an end when the management of Ace changed, and the new management decided that the series was too juvenile for their taste. The last Ace issue was #118, which corresponded to German issue #126 as some of the Ace editions contained two of the German issues, and three of the German issues had been skipped. Ackerman later published translations of German issues #127 through #145 on his own under the Master Publications imprint. (The original German series continues today and passed issue #2800 in 2015.) Appearances in film, television, and music A lifelong fan of science fiction "B-movies", Ackerman appeared in more than 210 films, including parts in many monster movies and science fiction films (Dracula vs. Frankenstein, The Howling, The Aftermath, Scalps, Return of the Living Dead Part II, Innocent Blood), more traditional "imagi-movies" (The Time Travelers, Future War), spoofs and comedies (Amazon Women on the Moon, The Wizard of Speed and Time, Curse of the Queerwolf, Transylvania Twist, Hard to Die, Nudist Colony of the Dead, Attack of the 60 Foot Centerfold) and at least one major music video (Michael Jackson's Thriller). His Bacon number is 2. In 1961, Ackerman narrated the record Music for Robots created by Frank Allison Coe. The cover featured Ackerman's face superimposed
several full-color fantasy films produced by Alexander Korda, including The Thief of Bagdad (1940), a film on par with The Wizard of Oz, and Jungle Book (1942). In 1946, Jean Cocteau's classic adaptation of Beauty and the Beast won praise for its surreal elements and for transcending the boundaries of the fairy tale genre. Sinbad the Sailor (1947), starring Douglas Fairbanks Jr., has the feel of a fantasy film though it does not actually have any fantastic elements. and Here Comes Mr. Jordan, all from 1941, Heaven Can Wait the musical Cabin in the Sky (1943), the comedy The Horn Blows at Midnight and romances such as The Ghost and Mrs. Muir (1947), One Touch of Venus and Portrait of Jennie, both 1948. An astonishing anticipation of the full "sword and sorcery" genre was made in 1941 in Italy by Alessandro Blasetti. La Corona di Ferro presents the struggles of two imaginary kingdoms around the legendary Iron Crown (historically the ancient crown of Italy), with war, cruelty, betrayal, heroism, sex, magic and mysticism, a whirl of events taken from every possible fairy tale and legend source Blasetti could find. This movie is unlike anything done before; indeed, considering that it was finished fifteen years before the publication of Lord Of The Rings, its invention of a vast, national epic mythology is an act of genius. And while the storytelling is rough - due to the need to insert everything - and the resources limited, Blasetti shows how to make a little go a long way through beautifully staged and designed battle and crowd scenes. Although it's not classified as a fantasy film, Gene Kelly's Anchors Aweigh had a fantasy sequence called "The King who Couldn't Dance" in which Gene did a song and dance number with Jerry Mouse from Tom and Jerry. Because these movies do not feature elements common to high fantasy or sword and sorcery pictures, some modern critics do not consider them to be examples of the fantasy genre. 1950s In the 1950s there were a few major fantasy films, including Darby O'Gill and the Little People and The 5,000 Fingers of Dr. T., the latter penned by Dr. Seuss. Jean Cocteau's Orphic Trilogy, begun in 1930 and completed in 1959, is based on Greek mythology and could be classified either as fantasy or surrealist film, depending on how the boundaries between these genres are drawn. Russian fantasy director Aleksandr Ptushko created three mythological epics from Russian fairytales, Sadko (1953), Ilya Muromets (1956), and Sampo (1959). Japanese director Kenji Mizoguchi's 1953 film Ugetsu Monogatari draws on Japanese classical ghost stories of love and betrayal. Other notable pictures from the 1950s that feature fantastic elements and are sometimes classified as fantasy are Harvey (1950), featuring a púca of Celtic mythology; Scrooge, the 1951 adaptation of Charles Dickens' A Christmas Carol; and Ingmar Bergman's 1957 masterpiece, The Seventh Seal. Disney's 1951 animated film Alice in Wonderland is also a fantasy classic. There were also a number of lower budget fantasies produced in the 1950s, typically based on Greek or Arabian legend. The most notable of these may be 1958's The 7th Voyage of Sinbad, featuring special effects by Ray Harryhausen and music by Bernard Herrmann. 1960s Harryhausen worked on a series of fantasy films in the 1960s, most importantly Jason and the Argonauts (1963). Many critics have identified this film as Harryhausen's masterwork for its stop-motion animated statues, skeletons, harpies, hydra, and other mythological creatures. Other Harryhausen fantasy and science fantasy collaborations from the decade include the 1961 adaptation of Jules Verne's Mysterious Island, the critically panned One Million Years B.C. starring Raquel Welch, and The Valley of Gwangi (1969). Capitalising on the success of the sword and sandal genre several Italian B-movies based on classical myth were made, including the Maciste series. Otherwise, the 1960s were almost entirely devoid of fantasy films. The fantasy picture 7 Faces of Dr. Lao, in which Tony Randall portrayed several characters from Greek mythology, was released in 1964. But the 1967 adaptation of the Broadway musical Camelot removed most of the fantasy elements from T. H. White's classic The Once and Future King, on which the musical had been based. The 1960s also saw a new adaption of Haggard's She in 1965 starring Ursula Andress as the immortal "She who must be obeyed" and was followed by a sequel in 1968 The Vengeance of She based loosely on the novel Ayesha: The Return of She both produced by Hammer Film Productions, 1968 also saw the release of Chitty Chitty Bang Bang based on a story by Ian Fleming with a script from Roald Dahl. 1970s Fantasy elements of Arthurian legend were again featured, albeit absurdly, in 1975's Monty Python and the Holy Grail. Harryhausen also returned to the silver screen in the 1970s with two additional Sinbad fantasies, The Golden Voyage of Sinbad (1974) and Sinbad and the Eye of the Tiger (1977). The animated movie Wizards (1977) had limited success at the box office but achieved status as a cult film. There was also The Noah (1975) which was never released theatrically but became a cult favorite when it was finally released on DVD in 2006. Some would consider 1977's Oh God!, starring George Burns to be a fantasy film, and Heaven Can Wait (1978) was a successful Bangsian fantasy remake of 1941's Here Comes Mr. Jordan (not 1943's Heaven Can Wait). A few low budget "Lost World" pictures were made in the 1970s, such as 1975's The Land That Time Forgot. Otherwise, the fantasy genre was largely absent from mainstream movies in this decade, although 1971's Bedknobs and Broomsticks and Willy Wonka & the Chocolate Factory were two fantasy pictures in the public eye the former being predominantly from the same team who did Mary Poppins the latter again being from Roald Dahl in both script and novel. 1980s 1980s fantasy films were initially characterized by directors finding a new spin on established mythologies. Ray Harryhausen brought the monsters of Greek legends to life in Clash of the Titans while Arthurian lore returned to the screen in John Boorman's 1981 Excalibur. Films such as Ridley Scott's 1985 Legend and Terry Gilliam's 1981–1986 trilogy of fantasy epics (Time Bandits, Brazil, and The Adventures of Baron Munchausen) explored a new artist-driven style featuring surrealist imagery and thought-provoking plots. The modern sword and sorcery boom began around the same time with 1982's Conan the Barbarian followed by Krull and Fire and Ice in 1983, as well as a boom in fairy tale-like fantasy films such as Ladyhawke (1985), The Princess Bride (1987), and Willow (1988). The 1980s also started a trend in mixing modern settings and action film effects with exotic fantasy-like concepts. Big Trouble in Little China (1986), directed by John Carpenter and starring Kurt Russell, combined humor, martial arts and classic Chinese folklore in a modern Chinatown setting. Highlander, a film about immortal Scottish swordsmen, was released the same year. Jim Henson produced two iconic fantasy films in the 80s, the solemn The Dark Crystal and the more whimsical and lofty Labyrinth. Meanwhile, Robert Zemeckis helmed Who Framed Roger Rabbit, featuring various famous cartoon characters from animation's "Golden Age," including Mickey Mouse, Minnie Mouse, Donald Duck, Bugs Bunny, Daffy Duck, Droopy, Wile E. Coyote and Road Runner, Sylvester the Cat, Tweety Pie, and Jiminy Cricket, among others. 1990s The 90s saw the Disney Renaissance in which many successful adaptations of written fantasy works were released by Disney Animation. Aladdin (1992) Army of Darkness (1992) Beauty and the Beast (1991) Bram Stoker's Dracula (1992) Dragonheart (1996) Edward Scissorhands (1990) Fantasia 2000 (1999) The Green Mile (1999) Groundhog Day (1993) Ghost in the Machine (1995) Hercules (1997) Hook (1991) The Indian in the Cupboard (1995) Jumanji (1995) Kazaam (1996) Matilda (1996) Meet Joe Black (1998) Mulan(1998) Nightbreed (1990) The Prince of Egypt (1998) Princess Mononoke (Mononoke Hime) (1997) Toy Story (1995) Toy Story 2 (1999) The Wind in the Willows (Mr Toad's Wild Ride) (1996) 2000s The 2000s saw a boom in the genre. This was compounded by the success of Lord of The Rings and Harry Potter, which spurred a movement in film adaptations of fantasy literary works including The Chronicles of Narnia, Tales from Earthsea, Eragon, Inkheart, and The Golden Compass. The Star Wars prequel trilogy and Pirates of the Caribbean also saw success at the box office. 13 Going on 30 (2004) 17 Again (2009) 300 (2006) Alvin & the Chipmunks (2007) Anji (2004) Atlantis: The Lost Empire (2001) Big Fish (2003) Bridge to Terabithia (2007) The Brothers Grimm (2005) The Chronicles of Narnia (2005-10) Coraline (2009) Corpse Bride (2005) Crouching Tiger, Hidden Dragon (2000) The Curious Case of Benjamin Button (2008) D-War (2007) Dorian Gray (2009) Dungeons & Dragons (2000-12) Elf (2003) The Emperor's New Groove (2000) Enchanted (2007) Eragon (2006) Fat Albert (2004) The Golden Compass (2007) Harry Potter (2001–11) The Hexer (2001) How the Grinch Stole Christmas (2000) Howl's Moving Castle (2004) The Imaginarium of Doctor Parnassus (2009) Imagine That (2009) Inkheart (2008) The Invention of Lying (2009) King Kong (2005) Lady in the Water (2006) Lemony Snicket's A Series of Unfortunate Events (2004) Looney Tunes: Back in Action (2003) The Lord of the Rings (2001–03) The Lovely Bones (2008) The Master of Disguise (2002) Monsters Inc. (2001-13) Nanny McPhee (2005) Night Watch (2004) Pan's Labyrinth (2006) Peter Pan (2003) Pirates of the Caribbean (2003-17) Prezzemolo (2003) Race to Witch Mountain (2009) The Science of Sleep (2006) The Secret of Kells (2009) The Seeker: The Dark Is Rising (2007) Shrek (2001-10) The Spiderwick Chronicles (2008) Spike (2008) Spirited Away (2002) Stardust (2007) Star Wars Episodes I-III (1999-2005) Tales from Earthsea ((2006) Treasure Planet (2002) Twilight (2008–12) Underworld (2003-16) Where the Wild Things Are (2009) Zathura: A Space Adventure (2005) 2010s Abraham Lincoln: Vampire Hunter (2012) Aladdin (2019) Alice in Wonderland (2010) Alice Through the Looking Glass (2016) Aquaman (2018) A Wrinkle in Time (2018) Baahubali: The Beginning (2014) Baahubali 2: The Conclusion (2017) Beauty and the Beast (2017) Black Panther (2018) Brave (2012) Christopher Robin (2018) Cinderella (2015) Clash of the Titans (2010) and its 2012 sequel, Wrath of the Titans Conan the Barbarian (2011) Crimson Peak (2015) Dark Shadows (2012) Doctor Strange (2016) Fantastic Beasts: The Crimes of Grindelwald (2018) Fantastic Beasts and Where to Find Them (2016) Frozen
both produced by Hammer Film Productions, 1968 also saw the release of Chitty Chitty Bang Bang based on a story by Ian Fleming with a script from Roald Dahl. 1970s Fantasy elements of Arthurian legend were again featured, albeit absurdly, in 1975's Monty Python and the Holy Grail. Harryhausen also returned to the silver screen in the 1970s with two additional Sinbad fantasies, The Golden Voyage of Sinbad (1974) and Sinbad and the Eye of the Tiger (1977). The animated movie Wizards (1977) had limited success at the box office but achieved status as a cult film. There was also The Noah (1975) which was never released theatrically but became a cult favorite when it was finally released on DVD in 2006. Some would consider 1977's Oh God!, starring George Burns to be a fantasy film, and Heaven Can Wait (1978) was a successful Bangsian fantasy remake of 1941's Here Comes Mr. Jordan (not 1943's Heaven Can Wait). A few low budget "Lost World" pictures were made in the 1970s, such as 1975's The Land That Time Forgot. Otherwise, the fantasy genre was largely absent from mainstream movies in this decade, although 1971's Bedknobs and Broomsticks and Willy Wonka & the Chocolate Factory were two fantasy pictures in the public eye the former being predominantly from the same team who did Mary Poppins the latter again being from Roald Dahl in both script and novel. 1980s 1980s fantasy films were initially characterized by directors finding a new spin on established mythologies. Ray Harryhausen brought the monsters of Greek legends to life in Clash of the Titans while Arthurian lore returned to the screen in John Boorman's 1981 Excalibur. Films such as Ridley Scott's 1985 Legend and Terry Gilliam's 1981–1986 trilogy of fantasy epics (Time Bandits, Brazil, and The Adventures of Baron Munchausen) explored a new artist-driven style featuring surrealist imagery and thought-provoking plots. The modern sword and sorcery boom began around the same time with 1982's Conan the Barbarian followed by Krull and Fire and Ice in 1983, as well as a boom in fairy tale-like fantasy films such as Ladyhawke (1985), The Princess Bride (1987), and Willow (1988). The 1980s also started a trend in mixing modern settings and action film effects with exotic fantasy-like concepts. Big Trouble in Little China (1986), directed by John Carpenter and starring Kurt Russell, combined humor, martial arts and classic Chinese folklore in a modern Chinatown setting. Highlander, a film about immortal Scottish swordsmen, was released the same year. Jim Henson produced two iconic fantasy films in the 80s, the solemn The Dark Crystal and the more whimsical and lofty Labyrinth. Meanwhile, Robert Zemeckis helmed Who Framed Roger Rabbit, featuring various famous cartoon characters from animation's "Golden Age," including Mickey Mouse, Minnie Mouse, Donald Duck, Bugs Bunny, Daffy Duck, Droopy, Wile E. Coyote and Road Runner, Sylvester the Cat, Tweety Pie, and Jiminy Cricket, among others. 1990s The 90s saw the Disney Renaissance in which many successful adaptations of written fantasy works were released by Disney Animation. Aladdin (1992) Army of Darkness (1992) Beauty and the Beast (1991) Bram Stoker's Dracula (1992) Dragonheart (1996) Edward Scissorhands (1990) Fantasia 2000 (1999) The Green Mile (1999) Groundhog Day (1993) Ghost in the Machine (1995) Hercules (1997) Hook (1991) The Indian in the Cupboard (1995) Jumanji (1995) Kazaam (1996) Matilda (1996) Meet Joe Black (1998) Mulan(1998) Nightbreed (1990) The Prince of Egypt (1998) Princess Mononoke (Mononoke Hime) (1997) Toy Story (1995) Toy Story 2 (1999) The Wind in the Willows (Mr Toad's Wild Ride) (1996) 2000s The 2000s saw a boom in the genre. This was compounded by the success of Lord of The Rings and Harry Potter, which spurred a movement in film adaptations of fantasy literary works including The Chronicles of Narnia, Tales from Earthsea, Eragon, Inkheart, and The Golden Compass. The Star Wars prequel trilogy and Pirates of the Caribbean also saw success at the box office. 13 Going on 30 (2004) 17 Again (2009) 300 (2006) Alvin & the Chipmunks (2007) Anji (2004) Atlantis: The Lost Empire (2001) Big Fish (2003) Bridge to Terabithia (2007) The Brothers Grimm (2005) The Chronicles of Narnia (2005-10) Coraline (2009) Corpse Bride (2005) Crouching Tiger, Hidden Dragon (2000) The Curious Case of Benjamin Button (2008) D-War (2007) Dorian Gray (2009) Dungeons & Dragons (2000-12) Elf (2003) The Emperor's New Groove (2000) Enchanted (2007) Eragon (2006) Fat Albert (2004) The Golden Compass (2007) Harry Potter (2001–11) The Hexer (2001) How the Grinch Stole Christmas (2000) Howl's Moving Castle (2004) The Imaginarium of Doctor Parnassus (2009) Imagine That (2009) Inkheart (2008) The Invention of Lying (2009) King Kong (2005) Lady in the Water (2006) Lemony Snicket's A Series of Unfortunate Events (2004) Looney Tunes: Back in Action (2003) The Lord of the Rings (2001–03) The Lovely Bones (2008) The Master of Disguise (2002) Monsters Inc. (2001-13) Nanny McPhee (2005) Night Watch (2004) Pan's Labyrinth (2006) Peter Pan (2003) Pirates of the Caribbean (2003-17) Prezzemolo (2003) Race to Witch Mountain (2009) The Science of Sleep (2006) The Secret of Kells (2009) The Seeker: The Dark Is Rising (2007) Shrek (2001-10) The Spiderwick Chronicles (2008) Spike (2008) Spirited Away (2002) Stardust (2007) Star Wars Episodes I-III (1999-2005) Tales from Earthsea ((2006) Treasure Planet (2002) Twilight (2008–12) Underworld (2003-16) Where the Wild Things Are (2009) Zathura: A Space Adventure (2005) 2010s Abraham Lincoln: Vampire Hunter (2012) Aladdin (2019) Alice in Wonderland (2010) Alice Through the Looking Glass (2016) Aquaman (2018) A Wrinkle in Time (2018) Baahubali: The Beginning (2014) Baahubali 2: The Conclusion (2017) Beauty and the Beast (2017) Black Panther (2018) Brave (2012) Christopher Robin (2018) Cinderella (2015) Clash of the Titans (2010) and its 2012 sequel, Wrath of the Titans Conan the Barbarian (2011) Crimson Peak (2015) Dark Shadows (2012) Doctor Strange (2016) Fantastic Beasts: The Crimes of Grindelwald (2018) Fantastic Beasts and Where to Find Them (2016) Frozen (2013) Frozen II (2019) Godzilla: King of the Monsters (2019) Goosebumps (2015) Gulliver's Travels (2010) Harry Potter and the
contexts, the formal distinction between the finite and the infinite can remain a delicate matter. The difficulty stems from Gödel's incompleteness theorems. One can interpret the theory of hereditarily finite sets within Peano arithmetic (and certainly also vice versa), so the incompleteness of the theory of Peano arithmetic implies that of the theory of hereditarily finite sets. In particular, there exists a plethora of so-called non-standard models of both theories. A seeming paradox is that there are non-standard models of the theory of hereditarily finite sets which contain infinite sets, but these infinite sets look finite from within the model. (This can happen when the model lacks the sets or functions necessary to witness the infinitude of these sets.) On account of the incompleteness theorems, no first-order predicate, nor even any recursive scheme of first-order predicates, can characterize the standard part of all such models. So, at least from the point of view of first-order logic, one can only hope to describe finiteness approximately. More generally, informal notions like set, and particularly finite set, may receive interpretations across a range of formal systems varying in their axiomatics and logical apparatus. The best known axiomatic set theories include Zermelo-Fraenkel set theory (ZF), Zermelo-Fraenkel set theory with the Axiom of Choice (ZFC), Von Neumann–Bernays–Gödel set theory (NBG), Non-well-founded set theory, Bertrand Russell's Type theory and all the theories of their various models. One may also choose among classical first-order logic, various higher-order logics and intuitionistic logic. A formalist might see the meaning of set varying from system to system. Some kinds of Platonists might view particular formal systems as approximating an underlying reality. Set-theoretic definitions of finiteness In contexts where the notion of natural number sits logically prior to any notion of set, one can define a set S as finite if S admits a bijection to some set of natural numbers of the form . Mathematicians more typically choose to ground notions of number in set theory, for example they might model natural numbers by the order types of finite well-ordered sets. Such an approach requires a structural definition of finiteness that does not depend on natural numbers. Various properties that single out the finite sets among all sets in the theory ZFC turn out logically inequivalent in weaker systems such as ZF or intuitionistic set theories. Two definitions feature prominently in the literature, one due to Richard Dedekind, the other to Kazimierz Kuratowski. (Kuratowski's is the definition used above.) A set S is called Dedekind infinite if there exists an injective, non-surjective function . Such a function exhibits a bijection between S and a proper subset of S, namely the image of f. Given a Dedekind infinite set S, a function f, and an element x that is not in the image of f, we can form an infinite sequence of distinct elements of S, namely . Conversely, given a sequence in S consisting of distinct elements , we can define a function f such that on elements in the sequence and f behaves like the identity function otherwise. Thus Dedekind infinite sets contain subsets that correspond bijectively with the natural numbers. Dedekind finite naturally means that every injective self-map is also surjective. Kuratowski finiteness is defined as follows. Given any set S, the binary operation of union endows the powerset P(S) with the structure of a semilattice. Writing K(S) for the sub-semilattice generated by the empty set and the singletons, call set S Kuratowski finite if S itself belongs to K(S). Intuitively, K(S) consists of the finite subsets of S. Crucially, one does not need induction, recursion or a definition of natural numbers to define generated by since one may obtain K(S) simply by taking the intersection of all sub-semilattices containing the empty set and the singletons. Readers unfamiliar with semilattices and other notions of abstract algebra may prefer an entirely elementary formulation. Kuratowski finite means S lies in the set K(S), constructed as follows. Write M for the set of all subsets X of P(S) such that: X contains the empty set; For every set T in P(S), if X contains T then X also contains the union of T with any singleton. Then K(S) may be defined as the intersection of M. In ZF, Kuratowski finite implies Dedekind finite, but not vice versa. In the parlance of a popular pedagogical formulation, when the axiom of choice fails badly, one may have an infinite family of socks with no way to choose one sock from more than finitely many of the pairs. That would make the set of such socks Dedekind finite: there can be no infinite sequence
has a finite number of elements. Informally, a finite set is a set which one could in principle count and finish counting. For example, is a finite set with five elements. The number of elements of a finite set is a natural number (a non-negative integer) and is called the cardinality of the set. A set that is not finite is called infinite. For example, the set of all positive integers is infinite: Finite sets are particularly important in combinatorics, the mathematical study of counting. Many arguments involving finite sets rely on the pigeonhole principle, which states that there cannot exist an injective function from a larger finite set to a smaller finite set. Definition and terminology Formally, a set is called finite if there exists a bijection for some natural number . The number is the set's cardinality, denoted as . The empty set { } or ∅ is considered finite, with cardinality zero. If a set is finite, its elements may be written — in many ways — in a sequence: In combinatorics, a finite set with elements is sometimes called an -set and a subset with elements is called a -subset. For example, the set {5,6,7} is a 3-set – a finite set with three elements – and {6,7} is a 2-subset of it. (Those familiar with the definition of the natural numbers themselves as conventional in set theory, the so-called von Neumann construction, may prefer to use the existence of the bijection , which is equivalent.) Basic properties Any proper subset of a finite set S is finite and has fewer elements than S itself. As a consequence, there cannot exist a bijection between a finite set S and a proper subset of S. Any set with this property is called Dedekind-finite. Using the standard ZFC axioms for set theory, every Dedekind-finite set is also finite, but this implication cannot be proved in ZF (Zermelo–Fraenkel axioms without the axiom of choice) alone. The axiom of countable choice, a weak version of the axiom of choice, is sufficient to prove this equivalence. Any injective function between two finite sets of the same cardinality is also a surjective function (a surjection). Similarly, any surjection between two finite sets of the same cardinality is also an injection. The union of two finite sets is finite, with In fact, by the inclusion–exclusion principle: More generally, the union of any finite number of finite sets is finite. The Cartesian product of finite sets is also finite, with: Similarly, the Cartesian product of finitely many finite sets is finite. A finite set with n elements has 2 distinct subsets. That is, the power set P(S) of a finite set S is finite, with cardinality 2. Any subset of a finite set is finite. The set of values of a function when applied to elements of a finite set is finite. All finite sets are countable, but not all countable sets are finite. (Some authors, however, use "countable" to mean "countably infinite", so do not consider finite sets to be countable.) The free semilattice over a finite set is the set of its non-empty subsets, with the join operation being given by set union. Necessary and sufficient conditions for finiteness In Zermelo–Fraenkel set theory without the axiom of choice (ZF), the following conditions are all equivalent: S is a finite set. That is, S can be placed into a one-to-one correspondence with the set of those natural numbers less than some specific natural number. (Kazimierz Kuratowski) S has all properties which can be proved by mathematical induction beginning with the empty set and adding one new element at a time. (See below for the set-theoretical formulation of Kuratowski finiteness.) (Paul Stäckel) S can be given a total
land, and Giles manages to ward him away with a blunderbuss shot in his general direction. The people of the village cheer: Farmer Giles has become a hero. His reputation spreads across the kingdom, and he is rewarded by the King with a sword named Caudimordax ("Tailbiter")—which turns out to be a powerful weapon against dragons. The giant, on returning home, relates to his friends that there are no more knights in the Middle Kingdom, just stinging flies—actually the scrap metal shot from the blunderbuss—and this entices a dragon, Chrysophylax Dives, to investigate the area. The terrified neighbours all expect the accidental hero Farmer Giles to deal with him. The story parodies the great dragon-slaying traditions. The knights sent by the King to pursue the dragon are useless fops, more intent on "precedence and etiquette" than on the huge dragon footprints littering the landscape. The only part of a 'dragon' they know is the annual celebratory dragon-tail cake. Giles by contrast clearly recognises the danger, and resents being sent with them to face it. But hapless farmers can be forced to become heroes, and Giles shrewdly makes the best of the situation. It has been suggested that the Middle Kingdom is based on early Mercia, and that Giles's break-away realm (the Little Kingdom) is based on Frithuwald's Surrey. Philological humour Tolkien, by profession a philologist, sprinkled several philological jokes into the tale, including a variety of ingeniously fake etymologies. Almost all the place-names are supposed to occur relatively close to Oxford, along the Thames, or along the route to London. At the end of the story, Giles is made Lord of Tame, and Count of Worminghall. The village of Oakley, burnt to the ground by the dragon early in the story, may also be named after Oakley, Buckinghamshire, near to Thame. Tolkien insists, tongue in cheek, that the village of Thame originally referred to the Tame Dragon housed in it, and that "tame with an h is a folly without warrant." Another joke puts a question concerning the definition of blunderbuss to "the four wise clerks of Oxenford" (a reference to Chaucer's Clerk; Tolkien had worked for Henry Bradley, one of the four main editors of the Oxford English Dictionary): A short gun with a large bore firing many balls or slugs, and capable of doing execution within a limited range without exact aim. (Now superseded, in civilised countries, by other firearms.) and then satirises it with application to the situation at hand: However, Farmer Giles's blunderbuss had a wide mouth that opened like a horn, and it did not fire balls or slugs, but anything that he could spare to stuff in. And it did not do execution, because he seldom loaded it, and never let it off. The sight of it was usually enough for his purpose. And this country was not yet civilised, for the blunderbuss was not superseded: it was indeed the only kind
been suggested that the Middle Kingdom is based on early Mercia, and that Giles's break-away realm (the Little Kingdom) is based on Frithuwald's Surrey. Philological humour Tolkien, by profession a philologist, sprinkled several philological jokes into the tale, including a variety of ingeniously fake etymologies. Almost all the place-names are supposed to occur relatively close to Oxford, along the Thames, or along the route to London. At the end of the story, Giles is made Lord of Tame, and Count of Worminghall. The village of Oakley, burnt to the ground by the dragon early in the story, may also be named after Oakley, Buckinghamshire, near to Thame. Tolkien insists, tongue in cheek, that the village of Thame originally referred to the Tame Dragon housed in it, and that "tame with an h is a folly without warrant." Another joke puts a question concerning the definition of blunderbuss to "the four wise clerks of Oxenford" (a reference to Chaucer's Clerk; Tolkien had worked for Henry Bradley, one of the four main editors of the Oxford English Dictionary): A short gun with a large bore firing many balls or slugs, and capable of doing execution within a limited range without exact aim. (Now superseded, in civilised countries, by other firearms.) and then satirises it with application to the situation at hand: However, Farmer Giles's blunderbuss had a wide mouth that opened like a horn, and it did not fire balls or slugs, but anything that he could spare to stuff in. And it did not do execution, because he seldom loaded it, and never let it off. The sight of it was usually enough for his purpose. And this country was not yet civilised, for the blunderbuss was not superseded: it was indeed the only kind of gun that there was, and rare at that. Tom Shippey comments: "Giles's blunderbuss ... defies the definition and works just the same." (Introduction to Tales from the Perilous Realm). Chrysophylax Dives Chrysophylax Dives () is a comically villainous dragon. He stands midway between Tolkien's Smaug, evil and greedy, and Kenneth Grahame's Reluctant Dragon, comical and timid. Chrysophýlax () is Greek for "gold-guard" and () is Latin for "rich". Chrysophylax comes across as a pompous aristocrat—rich, vain, and arrogant, but capable of compromise if handled correctly. Farmer Giles learns that he can be bullied, but is smart enough not to push him to desperation.
fish Rainbowfish Gobies and sleepers Sunfish and relatives Other fish See also List of aquarium fish by scientific name List of brackish aquarium fish species List of fish common names List of freshwater aquarium amphibian species List of freshwater aquarium invertebrate species List of freshwater aquarium plant species List
of brackish aquarium fish species List of fish common names List of freshwater aquarium amphibian species List of freshwater aquarium invertebrate species List of freshwater aquarium plant species List of marine aquarium fish species List of marine aquarium invertebrate species The Aquarium Wiki Encyclopaedia List of Freshwater aquarium fish Sources Encyclopedia of Aquarium and Pond Fish (2005) (David Alderton) 500
Moradi (Iran, born 1985) Luciana Morales Mendoza (Peru, born 1987) Kalikst Morawski (Poland, 1859 – c. 1939) Bruno Moritz (Germany, Ecuador, 1898–?) Iván Morovic (Chile, born 1963) Alexander Moroz (chess player) (Ukraine, 1961–2009) Alexander Morozevich (Russia, born 1977) Paul Morphy (US, 1837–1884) John Morrison (Canada, 1889–1975) Niaz Morshed (Bangladesh, born 1966) Paul Motwani (Scotland, born 1962) Alexander Motylev (Russia, born 1979) Sergei Movsesian (Armenia, Slovakia, born 1978) Paul Mross (Poland, Germany, 1910–1991) Martin Mrva (Slovakia, born 1971) André Muffang (France, 1897–1989) Hans Müller (Austria, 1896–1971) Karsten Müller (Germany, born 1970) César Muñoz (Ecuador, 1929–2000) Piotr Murdzia (Poland, born 1975) Jacob Murey (Russia, Israel, born 1941) Augusto de Muro (Argentina, ? –1959) Phiona Mutesi (Uganda, birthdate unknown) Anna Muzychuk (Ukraine, Slovenia, born 1990) Mariya Muzychuk (Ukraine, born 1992) Lhamsuren Myagmarsuren (Mongolia, born 1938) Hugh Myers (US, 1930–2008) N Ashot Nadanian (Armenia, born 1972) Arkadij Naiditsch (Latvia, Germany, born 1985) Oskar Naegeli (Switzerland, 1885–1959) Géza Nagy (Hungary, 1892–1953) Miguel Najdorf (Poland, Argentina, 1910–1997) Hikaru Nakamura (Japan, US, born 1987) William Napier (England, US, 1881–1952) Mario Napolitano (Italy, 1910–1995) Renato Naranja (Philippines, born 1940) Srinath Narayanan (India, born 1994) Daniel Naroditsky (US, born 1995) David Navara (Czech Republic, born 1985) Vera Nebolsina (Russia, born 1989) Ozren Nedeljković (Serbia, 1903–1984) Gastón Needleman (Argentina, born 1990) Parimarjan Negi (India, born 1993) Iivo Nei (Estonia, born 1931) Oleg Neikirch (Georgia, Bulgaria, 1914–1985) Kateřina Němcová (Czech Republic, born 1990) Vladimir Nenarokov (Russia, 1880–1953) Ian Nepomniachtchi (Russia, born 1990) Vincenzo Nestler (Italy, 1912–1988) Augustin Neumann (Austria, 1879–1906) Gustav Neumann (Germany, 1838–1881) Vladislav Nevednichy (Romania, born 1969) Valeriy Neverov (Ukraine, born 1962) Rashid Nezhmetdinov (Russia, 1912–1974) Ni Hua (China, born 1983) Arno Nickel (Germany, born 1952) Bryon Nickoloff (Canada, 1956–2004) Bjørn Nielsen (Denmark, 1907–1949) Peter Heine Nielsen (Denmark, born 1973) Torkil Nielsen (Faroe Islands, born 1964) Hans Niemann (US, born 2003) Walter Niephaus (Germany, 1923–1992) Yuri Nikolaevsky (Ukraine, 1937–2004) Ioannis Nikolaidis (Greece, born 1971) Predrag Nikolić (Bosnia and Herzegovina, born 1960) Allan Nilsson (Sweden, 1899–1949) Aron Nimzowitsch (Latvia, Denmark, 1886–1935) Ning Chunhong (China, born 1968) Liviu-Dieter Nisipeanu (Romania, born 1976) Josef Noa (Hungary, 1856–1903) Jesus Nogueiras (Cuba, born 1959) Federico Norcia (Italy, 1904–1985) Holger Norman-Hansen (Denmark, 1899–1984) David Norwood (England, born 1968) Daniël Noteboom (Netherlands, 1910–1932) Igor Novikov (Ukraine, US, born 1962) Nikolay Novotelnov (Russia, 1911–2006) Heinz Nowarra (Germany, 1897–c. 1945) John Nunn (England, born 1955) Friedrich Nürnberg (Germany, 1909–1984) Tomi Nyback (Finland, born 1985) Gustaf Nyholm (Sweden, 1880–1957) Illia Nyzhnyk (Ukraine, born 1996) O Kevin O'Connell (England, Ireland, born 1949) Handszar Odeev (Turkmenistan, born 1972) Leif Øgaard (Norway, born 1952) John O'Hanlon (Ireland, 1876–1960) Tõnu Õim (Estonia, born 1941) Kaarle Ojanen (Finland, 1918–2009) Albéric O'Kelly de Galway (Belgium, 1911–1980) Friðrik Ólafsson (Iceland, born 1935) Helgi Ólafsson (Iceland, born 1956) Mikhailo Oleksienko (Ukraine, born 1986) Lembit Oll (Estonia, 1966–1999) Adolf Georg Olland (Netherlands, 1867–1933) Anton Olson (Sweden, 1881–after 1928) Alexander Onischuk (Ukraine, US born 1975) Karel Opočensky (Czechoslovakia, 1892–1975) Wilhelm Orbach (Germany, 1894–1944) Menachem Oren (Poland, Israel, 1901–1962) Gerard Oskam (Netherlands, 1880–1952) Berge Ostenstad (Norway, born 1964) John Owen (England, 1827–1901) Karlis Ozols (Latvia, Australia, 1912–2001) P Ludek Pachman (Czechoslovakia, Germany, 1924–2003) Nikola Padevsky (Bulgaria, born 1933) Elisabeth Pähtz (Germany, born 1985) Mladen Palac (Croatia, born 1971) Sam Palatnik (Ukraine, US, born 1950) Luis Palau (Argentina, 1897–1971) Victor Palciauskas (Lithuania, US, born 1941) Richard Palliser (England, born 1981) Rudolf Palme (Austria, 1910–2005) Ryan Palmer (Jamaica, born 1974) Davor Palo (Denmark, born 1985) Eero Paloheimo (Finland, born 1936) Oscar Panno (Argentina, born 1935) Vasily Panov (Russia, 1906–1973) Mark Paragua (Philippines, born 1984) Bernard Parham (US, born 1946) Shadi Paridar (Iran, born 1986) Mircea Parligras (Romania, born 1980) Bruno Parma (Slovenia, born 1941) Frank Parr (England, 1918–2003) Louis Paulsen (Germany, 1833–1891) Wilfried Paulsen (Germany, 1828–1901) Duško Pavasovič (Croatia, Slovenia, born 1975) Max Pavey (US, 1918–1957) Jiří Pelikán (Czechoslovakia, Argentina, 1906–1985) Yannick Pelletier (Switzerland, born 1976) Roman Pelts (Ukraine, Canada, born 1937) Peng Xiaomin (China, born 1973) Peng Zhaoqin (China, born 1968) Jonathan Penrose (England, 1933–2021) Corina Peptan (Romania, born 1978) Julius Perlis (Poland, Austria, 1880–1913) Frederic Perrin (England, US, 1815–1889) Raaphi Persitz (England, Israel, Switzerland, 1934–2009) Nick Pert (England, born 1981) John Peters (US, born 1951) Jusefs Petkevich (Latvia, born 1940) Arshak Petrosian (Armenia, born 1953) Davit G. Petrosian (Armenia, born 1984) Tigran Petrosian (Armenia, Georgia, USSR, 1929–1984) Alexander Petrov (Russia, 1794–1867) Vladimirs Petrovs (Latvia, 1907–1943) Gerhard Pfeiffer (Germany, 1923–2000) Helmut Pfleger (Germany, born 1943) François-André Danican Philidor (France, 1726–1795) Luis Piazzini (Argentina, 1905–1980) Jeroen Piket (Netherlands, born 1969) Harry Nelson Pillsbury (US, 1872–1906) Herman Pilnik (Germany, Argentina, 1914–1981) Karol Piltz (Poland, 1903–1939) Albert Pinkus (US, 1903–1984) József Pintér (Hungary, born 1953) Vasja Pirc (Slovenia, 1907–1980) Rudolf Pitschak (Czechoslovakia, US, 1902–1988) Karl Pitschel (Austria, 1829–1883) Aaron Pixton (US, born 1986) Ján Plachetka (Slovakia, born 1945) Albin Planinc (Slovenia, 1944–2008) James Plaskett (England, Spain, born 1960) Kazimierz Plater (Poland, 1915–2004) Igor Platonov (Ukraine, 1934–1995) Joseph Platz (Germany, US, 1905–1981) Isaias Pleci (Argentina, 1907–1979) David Podhorzer (Austria, 1907–1998) Natalia Pogonina (Russia, born 1985) Henryk Pogorieły (Poland, 1908–1943) Ernest Pogosyants (Ukraine, 1935–1990) Iosif Pogrebyssky (Ukraine, 1906–1971) Amos Pokorný (Czechoslovakia, 1890–1949) Rudolph Pokorny (Bohemia, Mexico, US, 1880–after 1920) Giulio Polerio (Italy, 1548–1612) Judit Polgár (Hungary, born 1976) Zsuzsa Polgar (Hungary, US, born 1969) Zsofia Polgar (Hungary, Israel, born 1974) Elisabeta Polihroniade (Romania, 1935–2016) David Polland (US, born 1915) William Pollock (United Kingdom, 1859–1896) Lev Polugaevsky (Belarus, Russia, 1934–1995) Arturo Pomar (Spain, 1931–2016) Ruslan Ponomariov (Ukraine, 1983) Domenico Ponziani (Italy, 1719–1796) Stepan Popel (Poland, France, US, 1909–1987) Ignatz von Popiel (Austria-Hungary, Poland, 1863–1941) Petar Popović (Yugoslavia, Serbia, born 1959) Artur Poplawski (Poland, Switzerland, 1860–1918) Yosef Porath (Germany, Israel, 1909–1996) Moritz Porges (Bohemia/Austria-Hungary, 1857–1909) Lajos Portisch (Hungary, born 1937) Ehrhardt Post (Germany, 1881–1947) Evgeny Postny (Israel, born 1981) Peter Potemkine (Russia, France, 1886–1926) Vladimir Potkin (Russia, born 1982) Ludovit Potuček (Slovakia, 1912–1982) Christian Poulsen (Denmark, 1912–1981) Atousa Pourkashiyan (Iran, born 1988) Borki Predojević (Bosnia, born 1987) Edith Charlotte Price (England, 1872–1952) Lodewijk Prins (Netherlands, 1913–1999) Svetlana Prudnikova (Russia, born 1967) Dawid Przepiórka (Poland, 1880–1942) Lev Psakhis (Russia, Israel, born 1958) Lenka Ptacnikova (Czechoslovakia, Iceland, born 1976) Stojan Puc (Slovenia, 1921–2004) Viktors Pupols (Latvia, US, born 1934) Cecil Purdy (New Zealand, Australia, 1906–1979) John Purdy (Australia, 1935–2011) Q Qi Jingxuan (China, born 1947) Qin Kanying (China, born 1974) Oscar Quiñones (Peru, born 1941) Miguel Quinteros (Argentina, born 1947) R Braslav Rabar (Croatia, 1919–1973) Abram Rabinovich (Lithuania, Russia, 1878–1943) Ilya Rabinovich (Russia, 1891–1942) Teimour Radjabov (Azerbaijan, born 1987) Ivan Radulov (Bulgaria, born 1939) Markus Ragger (Austria, born 1988) Viacheslav Ragozin (Russia, 1908–1962) Ziaur Rahman (Bangladesh, born 1974) Samaita Raina (India, born 1997) Maurice Raizman (Moldova/Russia, France 1905–1974) Iweta Rajlich (Poland, born 1981) Ramachandran Ramesh (India, born 1976) Alejandro Ramírez (Costa Rica, born 1988) Richárd Rapport (Hungary, born 1996) Nukhim Rashkovsky (Russia, born 1946) Ilmar Raud (Estonia, Argentina, 1913–1941) Vsevolod Rauzer (Ukraine, 1908–1941) Yuri Razuvayev (Russia, 1945–2012) Damian Reca (Argentina, 1894–1937) Hans Ree (Netherlands, born 1944) Brian Reilly (France, England, Ireland, 1901–1991) Dimitri Reinderman (Netherlands, born 1972) Fred Reinfeld (US, 1910–1964) Heinrich Reinhardt (Germany, Argentina, 1903–1990) Salome Reischer (Austria, Palestine, US, 1899–1980) Teodor Regedziński (Poland, 1894–1954) Arturo Reggio (Italy, 1863–1917) Josef Rejfir (Czechoslovakia, 1909–1962) Ludwig Rellstab (Germany, 1904–1983) Georges Renaud (France, 1893–1975) Samuel Reshevsky (Poland, US, 1911–1992) Pál Réthy (Hungary, 1905–1962) Richard Réti (Austria-Hungary, Czechoslovakia, 1889–1929) Ramón Rey Ardid (Spain, 1903–1988) Alexander Riazantsev (Russia, born 1985) Zoltán Ribli (Hungary, born 1951) Pablo Ricardi (Argentina, born 1962) Isaac Rice (US, 1850–1915) Kurt Richter (Germany, 1900–1969) Antonio Rico (Spain, 1908–1988) Alessandra Riegler (Italy, born 1961) Fritz Riemann (Germany, 1859–1932) Friedl Rinder (Germany, 1905–2001) Horst Rittner (Germany, 1930–2021) Nikolai Riumin (Russia, 1908–1942) Jules Arnous de Rivière (France, 1830–1905) Karl Robatsch (Austria, 1928–2000) Walter Robinow (Germany, 1867–1938) Ray Robson (US, born 1994) Ludwig Rödl (Germany, 1907–1970) Maxim Rodshtein (Israel, born 1989) Hans Roepstorff (Germany, 1910–1945) Ian Rogers (Australia, born 1960) Gustav Rogmann (Germany, 1909–1947) Kenneth Rogoff (US, born 1953) Dorian Rogozenko (Romania, born 1973) Ivan Vladimir Rohaček (Slovakia, 1909–1977) Michael Rohde (US, born 1959) Michael Roiz (Russia, Israel born 1983) Oleg Romanishin (Ukraine, born 1952) Alexander Romanovsky (Lithuania, Russia, 1880–1943) Peter Romanovsky (Russia, 1892–1964) Max Romih (Croatia, Italy, 1893–1979) Chris de Ronde (Netherlands, Argentina, 1912–1996) Catharina Roodzant (Netherlands, 1896–1999) Salme Rootare (Estonia, 1913–1987) Vidrik Rootare (Estonia, c. 1900 – 1985) Jakob Rosanes (Ukraine/Austria-Hungary, Germany, 1842–1922) Bernardo Roselli (Uruguay, born 1965) Leon Rosen (Poland, US, 1869–1942) Andreas Rosendahl (Denmark, 1864–1909) Karl Wilhelm Rosenkrantz (Latvia, Russia, 1876–after 1928) Jacob Rosenthal (US, 1881–1954) Samuel Rosenthal (Poland, France 1837–1902) Laura Ross (US, born 1988) Stefano Rosselli del Turco (Italy, 1877–1947) Héctor Rossetto (Argentina, 1922–2009) Nicolas Rossolimo (Ukraine, France, US, 1910–1975) Gersz Rotlewi (Poland, 1889–1920) Eugéne Rousseau (France, c. 1810 – c. 1870) Jonathan Rowson (Scotland, born 1977) Solomon Rozental (Lithuania, Belarus, Russia, 1890–1955) Eduardas Rozentalis (Lithuania, born 1963) Vesna Rožič (Slovenia, 1987–2013) Levy Rozman (US, born 1995) Ruan Lufei (China, born 1987) Serge Rubanraut (China, Australia, 1948–2008) Karl Ruben (Denmark, 1903–1938) Jorge Rubinetti (Argentina, 1945–2016) Akiba Rubinstein (Poland, Germany, Belgium, 1882–1961) Emanuel Rubinstein (Poland, 1897–?) José Rubinstein (Argentina, 1940–1997) Simon Rubinstein (Austria, South Africa, c. 1910–1942) Solomon Rubinstein (Poland, US, 1868–1931) Sergei Rublevsky (Russia, born 1974) Olga Rubtsova (Russia, 1909–1994) Iosif Rudakovsky (Ukraine, 1914–1947) Lyudmila Rudenko (Ukraine, Russia, 1904–1986) Mary Rudge (England, 1842–1919) Nikoly Rudnev (Ukraine, Uzbekistan, 1895–1944) Anna Rudolf (Hungary, born 1987) Alexander Rueb (Netherlands, 1882–1959) Mikhail Rytshagov (Estonia, born 1967) S Peter Alexandrovich Saburov (Russia, 1835–1918) Peter Petrovich Saburov (Russia, Switzerland, 1880–1932) Antonio Sacconi (Italy, 1895–1968) Matthew Sadler (England, born 1974) Darmen Sadvakasov (Kazakhstan, born 1979) Yousof Safvat (Iran, 1940–2003) Pierre Charles Fournier de Saint-Amant (France, 1800–1872) Jaroslav Šajtar (Czechoslovakia, 1921–2003) Konstantin Sakaev (Russia, born 1974) Yuri Sakharov (Ukraine, 1922–1981) Valery Salov (Russia, born 1964) Alessandro Salvio (Italy, c. 1570 – c. 1640) Gersz Salwe (Poland, 1862–1920) Friedrich (Fritz) Sämisch (Germany, 1896–1975) Sergiu Samarian (Romania, Germany, 1923–1991) Grigory Sanakoev (Russia, 1935–2021) Luis Augusto Sánchez (Colombia, 1917–1981) Albert Sandrin Jr. (US, 1923–2004) Raúl Sanguineti (Argentina, 1933–2000) Anthony Santasiere (US, 1904–1977) Emmanuel Sapira (Romania, Belgium, 1900–1943) Ortvin Sarapu (Estonia, New Zealand, 1924–1999) Jonathan Sarfati (Australia, New Zealand, born 1964) Gabriel Sargissian (Armenia, born 1983) Ivan Šarić (Croatia, born 1990) Nihal Sarin (India, born 2004) Zoltan Sarosy (Hungary, Canada, 1906–2017) Jacob Sarratt (England, 1772–1819) Jeff Sarwer (Canada, born 1978) Krishnan Sasikiran (India, born 1981) Harold Saunders (England, 1875–1950) Stanislav Savchenko (Ukraine, born 1967) Vladimir Savon (Ukraine, 1940–2005) Gyula Sax (Hungary, 1951–2014) Emil Schallopp (Germany, 1843–1919) Morris Schapiro (Lithuania, US, 1903–1996) Willem Schelfhout (Netherlands, 1874–1951) Theodor von Scheve (Germany, 1851–1922) Emanuel Schiffers (Russia, 1850–1904) Willi Schlage (Germany, 1888–1940) Carl Schlechter (Austria, 1874–1918) Roland Schmaltz (Germany, born 1974) Carl Friedrich Schmid (Latvia, 1840–1897) Lothar Schmid (Germany, 1928–2013) Paul Felix Schmidt (Estonia, Germany, US, 1916–1984) Wlodzimierz Schmidt (Poland, born 1943) Ludwig Schmitt (Germany, 1902–1980) Wilhelm Schönmann (Germany, 1889–1970) Georg Schories (Germany, 1874–1934) Karl Schorn (Germany, 1803–1850) Arnold Schottländer (Germany, 1854–1909) František Schubert (Czechoslovakia, 1894–1940) John William Schulten (US, 1821–1875) Jan Schulz (Czechoslovakia, 1899–1953) Aaron Schwartzman (Argentina, 1908–2013) Gabriel Schwartzman (Romania, US, born 1976) Leon Schwartzmann (Poland, France, 1887–1942) Paulette Schwartzmann (Latvia, France, Argentina, 1894–1953?) Adolf Schwarz (Hungary, Austria, 1836–1910) Jacques Schwarz (Austria, 1856–1921) Samuel Schweber (Argentina, 1936–2017) Marie Sebag (France, born 1986) Yasser Seirawan (Syria, US, born 1960) Adolf Seitz (Germany, Argentina 1898–1970) Alexey Selezniev (Russia, France, 1888–1967) Lidia Semenova (Ukraine, born 1951) Olav Sepp (Estonia, born 1969) Edward Guthlac Sergeant (England, 1881–1961) Philip Walsingham Sergeant (England, 1872–1952) Aleksandr Sergeyev (Russia, 1897–1970) Drazen Sermek (Slovenia, born 1969) Gregory Serper (Uzbekistan, US, born 1969) Samuel Sevian (US, born 2000) Alexander Shabalov (Latvia, US, born 1967) Greg Shahade (US, born 1978) Jennifer Shahade (US, born 1980) Leonid Shamkovich (Russia, Israel, US, 1923–2005) Gauri Shankar (India, born 1992) Samuel Shankland (US, born 1991) Andrey Shariyazdanov (Russia, born 1976) Elizabeth Shaughnessy (Ireland, US, born 1937) Shen Yang (China, born 1989) James Sherwin (US, England, born 1933) Sergei Shipov (Russia, born 1966) Kamran Shirazi (Iran, US, France, born 1952) Alexei Shirov (Latvia, Spain, born 1972) Nigel Short (England, born 1965) Jackson Showalter (US, 1860–1935) Yury Shulman (Belarus, US, born 1975) Ilya Shumov (Russia, 1819–1881) Polina Shuvalova (Russia, born 2001) Félix Sicre (Cuba, 1817–1871) Bruno Edgar Siegheim (Germany, South Africa, 1875–1952) Guðmundur Sigurjónsson (Iceland, born 1947) Jeremy Silman (US, born 1954) Vladimir Simagin (Russia, 1919–1968) Albert Simonson (US, 1914–1965) Amon Simutowe (Zambia, born 1982) Marcel Sisniega Campbell (Mexico, 1959–2013) Stanislaus Sittenfeld (Poland, France, 1865–1902) Sanan Sjugirov (Russia, born 1993) Karel Skalička (Czechoslovakia, Argentina, 1896–1979) Almira Skripchenko (Moldova, France, born 1976) Bogdan Śliwa (Poland, 1922–2003) Sam Sloan (United States, born 1944) Roman Slobodjan (Germany, born 1975) Jørn Sloth (Denmark, born 1944) Jan Smeets (Netherlands, born 1985) Jan Smejkal (Czechoslovakia, born 1946) David Smerdon (Australia, born 1984) Shlomo Smiltiner (Israel, 1915–2015) Ilya Smirin (Belarus, Israel, born 1968) Pavel Smirnov (Russia, born 1982) Stephen Francis Smith (Canada, England, 1861–1928) Vasily Osipovich Smyslov (Russia, 1881–1943) Vasily Smyslov (Russia, 1921–2010) Wesley So (Philippines, born 1993) Bartosz Soćko (Poland, born 1978) Monika Soćko (Poland, born 1978) Andrei Sokolov (Russia, France, born 1963) Ivan Sokolov (Bosnia, Netherlands, born 1968) Alexey Sokolsky (Russia, Ukraine, Belarus, 1908–1969) Dragan Solak (Serbia, 1980) Alexander Solovtsov (Russia, 1847–1923) Andrew Soltis (US, born 1947) Ariel Sorin (Argentina, born 1967) Genna Sosonko (Russia, Netherlands, born 1943) Victor Soultanbeieff (Russia, Belgium, 1895–1972) Vladimir Sournin (Russia, US, 1875–1942) João de Souza Mendes (Brazil, 1892–1969) Hugo Spangenberg (Argentina, born 1975) Vasil Spasov (Bulgaria, born 1971) Boris Spassky (Russia, France, born 1937) Jon Speelman (England, born 1956) Abraham Speijer (Netherlands, 1873–1956) Rudolf Spielmann (Austria, Sweden, 1883–1942) Kevin Spraggett (Canada, born 1954) Ana Srebrnič (Slovenia, born 1984) Gideon Ståhlberg (Sweden, 1908–1967) Wilhelm von Stamm (Latvia, ?–1905) Phillip Stamma (Syria, England, France, 1705–1755) Nikolaus Stanec (Austria, born 1968) Charles Stanley (England, US, 1819–1901) Nava Starr (Latvia, Canada, born 1949) Howard Staunton (England, 1810–1874) Michael Stean (England, born 1953) Antoaneta Stefanova (Bulgaria, born 1979) Hannes Stefansson (Iceland, born 1972) Elias Stein (Alsace, Netherlands, 1748–1812) Leonid Stein (Ukraine, 1934–1973) Endre Steiner (Hungary, 1901–1944) Lajos Steiner (Hungary, Australia 1903–1975) Herman Steiner (Slovakia/Hungary, US, 1905–1955) Wilhelm Steinitz (Bohemia, Austria, England, US, 1836–1900) Daniel Stellwagen (Netherlands, born 1987) Károly Sterk (Hungary, 1881–1946) Adolf Stern (Germany, 1849–1907) Agnes Stevenson (England, before 1901–1935) Lara Stock (Croatia, born 1992) Mark Stolberg (Russia, 1922–1943) Gösta Stoltz (Sweden, 1904–1963) Leon Stolzenberg (Poland, US, 1895–1974) Zurab Sturua (Georgia, born 1964) Mihai Suba (Romania, born 1947) Mladen Šubarić (Croatia, 1908–1991) Hugo Süchting (Germany, 1874–1916) Alexey Suetin (Russia, 1926–2001) Berthold Suhle (Poland, Germany, 1837–1904) Franciszek Sulik (Poland, Argentina, Australia, 1908–2000) Šarūnas Šulskis (Lithuania, born 1972) Aaron Summerscale (England, born 1969) Anne Sunnucks (England, 1927–2014) Jaime Sunye Neto (Brazil, born 1957) Emil Sutovsky (Azerbaijan, Israel, born 1977) Duncan Suttles (Canada, born 1945) Evgeny Sveshnikov (Latvia, 1950–2021) Dmitry Svetushkin (Moldova, 1980–2020) Peter Svidler (Russia, born 1976) Rudolf Swiderski (Germany, 1878–1909) Eugenio Szabados (Hungary, Italy, 1898–1974) László Szabó (Hungary, 1917–1998) Gedali Szapiro (Poland, Israel, 1929–1972) Salomon Szapiro (Poland, 1882–1944) Rudolph Sze (China, US, c. 1890 – 1938) József Szén (Hungary, 1805–1857) József Szily (Hungary, 1913–1976) Jorge Szmetan (Argentina, 1950–2015) Aleksander Sznapik (Poland, born 1951) Abram Szpiro (Germany, Poland, 1912–1943) T Mark Taimanov (Ukraine, Russia, 1926–2016) Sándor Takács (Hungary, 1893–1932) Mikhail Tal (Latvia, 1936–1992) Tan Chengxuan (China, born 1963) Hiong Liong Tan (Indonesia, Netherlands, 1938–2009) Lian Ann Tan (Singapore, born 1947) Tan Zhongyi (China, born 1991) László Tapasztó (Hungary, Venezuela, US, born 1930) James Tarjan (US, born 1952) Siegbert Tarrasch (Germany, 1862–1934) Savielly Tartakower (Austria/Poland, France, 1887–1956) Jean Taubenhaus (Poland, France, 1850–1919) Lev Taussig (Czechoslovakia, 1880–?) Povilas Tautvaišas (Lithuania, US, 1916–1980) Jan Willem te Kolsté (Netherlands, 1874–1936) Richard Teichmann (Germany, 1868–1925) Oscar Tenner (Germany, US, 1880–1948) Rudolf Teschner (Germany, 1922–2006) Vitaly Teterev (Belarus, born 1983) Praveen Thipsay (India, born 1959) Murugan Thiruchelvam (England, born 1988) George Alan Thomas (Turkey, England, 1881–1972) James Thompson (England, US, 1804–1870) Theophilus Thompson (US, 1855 – after 1940?) Tian Tian (China, born 1983) Viktor Tietz (Czechoslovakia, 1859–1937) Hans Tikkanen (Sweden, born 1985) Jan Timman (Netherlands, born 1951) Gert Jan Timmerman (Netherlands, born 1956) Artyom Timofeev (Russia, born 1985) Samuel Tinsley (England, 1847–1903) Sergei Tiviakov (Russia, Netherlands, born 1973) Jonathan Tisdall (US, Norway, born 1958) Vladislav Tkachiev (Russia, Kazakhstan, France born 1973) Miodrag Todorcevic (Serbia, France, born 1940) Alexander Tolush (Russia, 1910–1969) Evgeny Tomashevsky (Russia, born 1987) Vasilije Tomović (Montenegro, 1906–?) Tong Yuanming (China, born 1972) Alice Tonini (Italy, ?) Veselin Topalov (Bulgaria, born 1975) Eugenio Torre (Philippines, born 1951) Carlos Torre Repetto (México, 1902–1978) Yury Toshev (Bulgaria, 1907–1974) Izaak Towbin (Ukraine, Poland, 1899–1941) Karel Traxler (Czechoslovakia, 1866–1936) Lawrence Trent (England, born 1986) František Treybal (Czechoslovakia, 1882–1942) Karel Treybal (Czechoslovakia, 1885–1941) George Treysman (US, 1881–1959) Petar Trifunović (Croatia, Serbia, 1910–1980) Georgi Tringov (Bulgaria, 1937–2000) Paul Truong (Vietnam, US, born 1965) Cindy Tsai (US, born 1985) Anatol Tschepurnoff (Finland, 1871–1942) Mark Tseitlin (Russia, Israel, born 1943) Mikhail Tseitlin (Belarus, Russia, born 1947) Vitaly Tseshkovsky (Russia, 1944–2011) Alexander Tsvetkov (Bulgaria, 1914–1990) Leon Tuhan-Baranowski (Poland, Germany, 1907–1954) Vladimir Tukmakov (Ukraine, born 1946) Johannes Türn (Estonia, 1899–1993) Abe Turner (US, 1924–1962) Maxim Turov (Russia, born 1979) Isador Samuel Turover (Belgium, US, 1892–1978) Theodore Tylor (England, 1900–1968) Dimitri Tyomkin (Canada, born 1977) Alexandru Tyroler (Romania, 1891–1990) U Louis Uedemann (US, 1854–1912) Shinsaku Uesugi (Japan, born 1991) Wolfgang Uhlmann (Germany, 1935–2020) Tüdeviin Üitümen (Mongolia, 1939–1993) Maximilian Ujtelky (Hungary/Slovakia, 1915–1979) Mikhail Ulibin (Russia, born 1971) Mikhail Umansky (Russia, 1952–2010) Wolfgang Unzicker (Germany, 1925–2006) Anna Ushenina (Ukraine, born 1985) V Maxime Vachier-Lagrave (France, born 1990) Rafael Vaganian (Armenia, born 1951) Samuil Vainshtein (Russia, 1894–1942) Anatoly Vaisser (Kazakhstan, France, born 1949) Povilas Vaitonis (Lithuania, Canada, 1911–1983) Árpád Vajda (Hungary, 1896–1967) Francisco Vallejo Pons (Spain, born 1982) Michael Valvo (US, 1942–2004) Johannes van den Bosch (Netherlands, 1906–1994) Arnold van den Hoek (Netherlands, 1921–1945) Paul van der Sterren (Netherlands, born 1956) John van der Wiel (Netherlands, born 1959) Arnold van Foreest (Netherlands, 1863–1954) Dirk van Foreest (Netherlands, 1862–1956) Jorden van Foreest (Netherlands, born 1999) Lucas van Foreest (Netherlands, born 2001) Norman van Lennep (Netherlands, 1872–1897) Herman Claudius van Riemsdijk (Netherlands, Brazil, born 1948) Theo van Scheltinga (Netherlands, 1914–1994) Louis van Vliet (Netherlands, 1870–1932) Loek van Wely (Netherlands, born 1972) Cyril Vansittart (England, Italy, 1852–1887) Zoltán Varga (Hungary, born 1970) Egon Varnusz (Hungary, 1933–2008) Evgeni Vasiukov (Russia, 1933–2018) Petar Velikov (Bulgaria, born 1951) Dragoljub Velimirović (Serbia, 1942–2014) Gavriil Veresov (Russia, 1912–1979) Beniamino Vergani (Italy, 1863–1927) Giovanni Vescovi (Brazil, born 1978) Boris Verlinsky (Ukraine, Russia, 1888–1950) Milan Vidmar (Slovenia, 1885–1962) Milan Vidmar, Jr. (Slovenia, 1909–1980) Subbaraman Vijayalakshmi (India, born 1979) Benito Villegas, (Argentina, 1877–1952) Yakov Vilner (Ukraine, 1899 – c. 1930) William Samuel Viner (Australia, 1881–1933) Fernando Visier Segovia (Spain, born 1943) Isakas Vistaneckis (Lithuania, Israel, 1910–2000) Nikita Vitiugov (Russia, born 1987) Alvis Vītoliņš (Latvia, 1946–1997) Evgeny Vladimirov (Kazakhstan, born 1957) Erwin Voellmy (Switzerland, 1886–1951) Sergey Volkov (Russia, born 1974) Andrei Volokitin (Ukraine, born 1986) Larisa Volpert (Russia, 1926–2017) Andrey Vovk (Ukraine, born 1991) Yuri Vovk (Ukraine, born 1988) Zvonko Vranesic (Croatia, Canada, born 1938) Milan Vukcevich (Serbia, US, 1937–2003) Milan Vukić (Serbia, Bosnia, born 1942) Vladimir Vuković (Croatia, 1898–1975) Konstantin Vygodchikov (Belarus, Russia, 1892–1941) Alexey Vyzmanavin (Russia, 1960–2000) W Robert Wade (New Zealand, England, 1921–2008) Alexander Wagner (Poland, 1868–1942) Heinrich Wagner (Germany, 1888–1959) Victor Wahltuch (England, 1875–1953) Josh Waitzkin (United States, born 1976) Carl August Walbrodt (Netherlands, Germany, 1871–1902) George Walker (England, 1803–1879) Max Walter (Slovakia, 1896–1940) Wang Hao (China, born 1989) Wang Lei (China, born 1975) Wang Pin (China, born 1974) Puchen Wang (China, New Zealand, born 1990) Wang Rui (China, born 1978) Wang Yu (China, born 1982) Wang Yue (China, born 1987) Chris Ward (England, born 1968) Preston Ware (US, 1821–1891) Cathy Warwick (England, born 1968) Miyoko Watai (Japan, born 1945) John L. Watson (US, born 1951) William Watson (England, born 1962) William Wayte (England, 1829–1898) Simon Webb (England, 1949–2005) Tom Wedberg (Sweden, born 1953) Henri Weenink (Netherlands, 1892–1931) Otto Wegemund (Germany, 1870–1928) Wei Yi (China, born 1999) Wolfgang Weil (Austria, 1912–1945) Max Weiss (Hungary, Austria, 1857–1927) Peter Wells (England, born 1965) Carl Wemmers (Germany, 1845–1882) Wen Yang (China, born 1988) Jan Werle
1863–1905) Georgy Lisitsin (Russia, 1909–1972) Paul List (Ukraine, Germany, England, 1887–1954) Marta Litinskaya-Shul (Ukraine, born 1949) John Littlewood (England, 1931–2009) Liu Shilan (China, born 1962) Liu Wenzhe (China, 1940–2010) Ljubomir Ljubojević (Serbia, born 1950) Eric Lobron (US, Germany, born 1960) Josef Lokvenc (Austria, 1899–1974) Giambattista Lolli (Italy, 1698–1769) Rudolf Loman (Netherlands, 1861–1932) William Lombardy (US, 1937–2017) Ruy López de Segura (Spain, c. 1530 – c. 1580) Edward Löwe (England, 1794–1880) Otto Löwenborg (Sweden, 1888–1969) Johann Löwenthal (Hungary, England, 1810–1876) Leopold Löwy, Jr (Austria, 1871–after 1909) Leopold Löwy, Sr (Austria, 1840–after 1904) Moishe Lowtzky (Ukraine, Poland, 1881–1940) Sam Loyd (US, 1841–1911) Smbat Lputian (Armenia, born 1958) Luis Ramirez Lucena (Spain, c. 1465 – c. 1530) Markas Luckis (Lithuania, Argentina, 1905–1973) Andrey Lukin (Russia, born 1948) Stig Lundholm (Sweden, 1917–2009) Erik Lundin (Sweden, 1904–1988) Francisco Lupi (Portugal, before 1910–1954) Constantin Lupulescu (Romania, born 1984) Thomas Luther (Germany, born 1969) Christopher Lutz (Germany, born 1971) M Gottlieb Machate (Germany, 1904–1974) Aleksandras Machtas (Lithuania, Israel, 1892–1973) Bartłomiej Macieja (Poland, born 1977) George Henry Mackenzie (Scotland, US, 1837–1891) Nicholas MacLeod (Canada, 1870–1965) Carlos Maderna (Argentina, 1910–1976) Ildikó Mádl (Hungary, born 1969) Elmar Magerramov (Azerbaijan, born 1958) Joanna Majdan (Poland, born 1988) Kazimierz Makarczyk (Poland, 1901–1972) Vladimir Makogonov (Azerbaijan, 1904–1993) Gyula Makovetz (Hungary, 1860–1903) Vadim Malakhatko (Ukraine, Belgium, born 1977) Vladimir Malakhov (Russia, born 1980) Vidmantas Mališauskas (Lithuania, born 1963) Vladimir Malaniuk (Russia, Ukraine, 1957–2017) Boris Maliutin (Russia, 1883–1920) Nidjat Mamedov (Azerbaijan, born 1985) Shakhriyar Mamedyarov (Azerbaijan, born 1985) Rauf Mammadov (Azerbaijan, born 1988) Maria Manakova (Serbia, born 1974) Karmen Mar (Slovenia, born 1987) Napoleon Marache (France, US, 1818–1875) Max Marchand (Netherlands, 1888–1957) Georg Marco (Romania, Austria, 1863–1923) Alisa Marić (Serbia, born 1970) Mirjana Marić (Serbia, born 1970) Mihail Marin (Romania, born 1965) Beatriz Marinello (Chile, born 1964) Sergio Mariotti (Italy, born 1946) Ján Markoš (Slovakia, born 1985) Tomasz Markowski (Poland, born 1975) Robert Markuš (Serbia, born 1984) Géza Maróczy (Hungary, 1870–1951) Davide Marotti (Italy, 1881–1940) Dražen Marović (Croatia, born 1938) Frank Marshall (US, 1877–1944) Dion Martinez (Cuba, US, 1837–1928) Giovanni Martinolich (Italy, 1884–1910) Rico Mascarinas (Philippines, born 1953) Houshang Mashian (Iran, Israel, born 1938) James Mason (Ireland, US, England, 1849–1905) Dimitrios Mastrovasilis (Greece, born 1983) Aleksandar Matanović (Serbia, born 1930) Hermanis Matisons (Latvia, 1894–1932) Milan Matulović (Serbia, 1935–2013) Svetlana Matveeva (Russia, born 1969) Carl Mayet (Germany, 1810–1868) Isaak Mazel (Belarus, Russia, 1911–1943) Neil McDonald (England, born 1967) Alexander McDonnell (Ireland, 1798–1835) Colin McNab (Scotland, born 1961) Luke McShane (England, born 1984) Henrique Mecking (Brazil, born 1952) Antonio Medina (Spain, 1919–2003) Edmar Mednis (Latvia, US, 1937–2002) Susanto Megaranto (Indonesia, born 1987) Philipp Meitner (Austria, 1838–1910) Hrant Melkumyan (Armenia, born 1989) Olga Menchik (Russia, Czechoslovakia, England, 1908–1944) Vera Menchik (Russia, Czechoslovakia, England, 1906–1944) Julius Mendheim (Germany, 1788–1836) Jonathan Mestel (England, born 1957) Johannes Metger (Germany, 1850–1926) Voldemars Mežgailis (Latvia, 1912–1998) Paul Michel (Germany, Argentina, 1905–1977) Walter Michel (Switzerland, 1888–after 1935) Reginald Price Michell (England, 1873–1938) Jacques Mieses (Germany, England, 1865–1954) Samuel Mieses (Germany, 1841–1884) Vladas Mikėnas (Estonia, Lithuania, 1910–1992) Adrian Mikhalchishin (Ukraine, Slovenia, born 1954) Victor Mikhalevski (Belarus, Israel, born 1972) Igor Miladinović (Serbia, born 1974) Tony Miles (England, 1955–2001) Zdravko Milev (Bulgaria, 1929–1984) Borislav Milic (Yugoslavia, 1925–1986) Sophie Milliet (France, born 1983) Stuart Milner-Barry (England, 1906–1995) Vadim Milov (Russia, Israel, Switzerland, born 1972) Artashes Minasian (Armenia, born 1987) Johannes Minckwitz (Germany, 1843–1901) Nikolay Minev (Bulgaria, US, 1931–2017) Dragoljub Minić (Montenegro, 1936–2005) Evgenij Miroshnichenko (Ukraine, born 1978) Azer Mirzoev (Azerbaijan, born 1978) Vesna Mišanović (Bosnia, born 1964) Abhimanyu Mishra (US, born 2009) Kamil Mitoń (Poland, born 1984) Lilit Mkrtchian (Armenia, born 1982) Stasch Mlotkowski (US, 1881–1943) Abram Model (Latvia, Russia, 1896–1976) Charles Moehle (US, 1859–1898) Jorgen Moeller (Denmark, 1873–1944) Ariah Mohiliver (Poland, Israel, 1904–1996) Stefan Mohr (Germany, born 1967) Alexander Moiseenko (Ukraine, born 1980) Baldur Möller (Iceland, 1914–1999) Augustus Mongredien (England, 1807–1888) Léon Monosson (Belarus, France, 1892–1943) Julius du Mont (France, England, 1881–1956) Mario Monticelli (Italy, 1902–1995) María Teresa Mora (Cuba, 1902–1980) Elshan Moradi (Iran, born 1985) Luciana Morales Mendoza (Peru, born 1987) Kalikst Morawski (Poland, 1859 – c. 1939) Bruno Moritz (Germany, Ecuador, 1898–?) Iván Morovic (Chile, born 1963) Alexander Moroz (chess player) (Ukraine, 1961–2009) Alexander Morozevich (Russia, born 1977) Paul Morphy (US, 1837–1884) John Morrison (Canada, 1889–1975) Niaz Morshed (Bangladesh, born 1966) Paul Motwani (Scotland, born 1962) Alexander Motylev (Russia, born 1979) Sergei Movsesian (Armenia, Slovakia, born 1978) Paul Mross (Poland, Germany, 1910–1991) Martin Mrva (Slovakia, born 1971) André Muffang (France, 1897–1989) Hans Müller (Austria, 1896–1971) Karsten Müller (Germany, born 1970) César Muñoz (Ecuador, 1929–2000) Piotr Murdzia (Poland, born 1975) Jacob Murey (Russia, Israel, born 1941) Augusto de Muro (Argentina, ? –1959) Phiona Mutesi (Uganda, birthdate unknown) Anna Muzychuk (Ukraine, Slovenia, born 1990) Mariya Muzychuk (Ukraine, born 1992) Lhamsuren Myagmarsuren (Mongolia, born 1938) Hugh Myers (US, 1930–2008) N Ashot Nadanian (Armenia, born 1972) Arkadij Naiditsch (Latvia, Germany, born 1985) Oskar Naegeli (Switzerland, 1885–1959) Géza Nagy (Hungary, 1892–1953) Miguel Najdorf (Poland, Argentina, 1910–1997) Hikaru Nakamura (Japan, US, born 1987) William Napier (England, US, 1881–1952) Mario Napolitano (Italy, 1910–1995) Renato Naranja (Philippines, born 1940) Srinath Narayanan (India, born 1994) Daniel Naroditsky (US, born 1995) David Navara (Czech Republic, born 1985) Vera Nebolsina (Russia, born 1989) Ozren Nedeljković (Serbia, 1903–1984) Gastón Needleman (Argentina, born 1990) Parimarjan Negi (India, born 1993) Iivo Nei (Estonia, born 1931) Oleg Neikirch (Georgia, Bulgaria, 1914–1985) Kateřina Němcová (Czech Republic, born 1990) Vladimir Nenarokov (Russia, 1880–1953) Ian Nepomniachtchi (Russia, born 1990) Vincenzo Nestler (Italy, 1912–1988) Augustin Neumann (Austria, 1879–1906) Gustav Neumann (Germany, 1838–1881) Vladislav Nevednichy (Romania, born 1969) Valeriy Neverov (Ukraine, born 1962) Rashid Nezhmetdinov (Russia, 1912–1974) Ni Hua (China, born 1983) Arno Nickel (Germany, born 1952) Bryon Nickoloff (Canada, 1956–2004) Bjørn Nielsen (Denmark, 1907–1949) Peter Heine Nielsen (Denmark, born 1973) Torkil Nielsen (Faroe Islands, born 1964) Hans Niemann (US, born 2003) Walter Niephaus (Germany, 1923–1992) Yuri Nikolaevsky (Ukraine, 1937–2004) Ioannis Nikolaidis (Greece, born 1971) Predrag Nikolić (Bosnia and Herzegovina, born 1960) Allan Nilsson (Sweden, 1899–1949) Aron Nimzowitsch (Latvia, Denmark, 1886–1935) Ning Chunhong (China, born 1968) Liviu-Dieter Nisipeanu (Romania, born 1976) Josef Noa (Hungary, 1856–1903) Jesus Nogueiras (Cuba, born 1959) Federico Norcia (Italy, 1904–1985) Holger Norman-Hansen (Denmark, 1899–1984) David Norwood (England, born 1968) Daniël Noteboom (Netherlands, 1910–1932) Igor Novikov (Ukraine, US, born 1962) Nikolay Novotelnov (Russia, 1911–2006) Heinz Nowarra (Germany, 1897–c. 1945) John Nunn (England, born 1955) Friedrich Nürnberg (Germany, 1909–1984) Tomi Nyback (Finland, born 1985) Gustaf Nyholm (Sweden, 1880–1957) Illia Nyzhnyk (Ukraine, born 1996) O Kevin O'Connell (England, Ireland, born 1949) Handszar Odeev (Turkmenistan, born 1972) Leif Øgaard (Norway, born 1952) John O'Hanlon (Ireland, 1876–1960) Tõnu Õim (Estonia, born 1941) Kaarle Ojanen (Finland, 1918–2009) Albéric O'Kelly de Galway (Belgium, 1911–1980) Friðrik Ólafsson (Iceland, born 1935) Helgi Ólafsson (Iceland, born 1956) Mikhailo Oleksienko (Ukraine, born 1986) Lembit Oll (Estonia, 1966–1999) Adolf Georg Olland (Netherlands, 1867–1933) Anton Olson (Sweden, 1881–after 1928) Alexander Onischuk (Ukraine, US born 1975) Karel Opočensky (Czechoslovakia, 1892–1975) Wilhelm Orbach (Germany, 1894–1944) Menachem Oren (Poland, Israel, 1901–1962) Gerard Oskam (Netherlands, 1880–1952) Berge Ostenstad (Norway, born 1964) John Owen (England, 1827–1901) Karlis Ozols (Latvia, Australia, 1912–2001) P Ludek Pachman (Czechoslovakia, Germany, 1924–2003) Nikola Padevsky (Bulgaria, born 1933) Elisabeth Pähtz (Germany, born 1985) Mladen Palac (Croatia, born 1971) Sam Palatnik (Ukraine, US, born 1950) Luis Palau (Argentina, 1897–1971) Victor Palciauskas (Lithuania, US, born 1941) Richard Palliser (England, born 1981) Rudolf Palme (Austria, 1910–2005) Ryan Palmer (Jamaica, born 1974) Davor Palo (Denmark, born 1985) Eero Paloheimo (Finland, born 1936) Oscar Panno (Argentina, born 1935) Vasily Panov (Russia, 1906–1973) Mark Paragua (Philippines, born 1984) Bernard Parham (US, born 1946) Shadi Paridar (Iran, born 1986) Mircea Parligras (Romania, born 1980) Bruno Parma (Slovenia, born 1941) Frank Parr (England, 1918–2003) Louis Paulsen (Germany, 1833–1891) Wilfried Paulsen (Germany, 1828–1901) Duško Pavasovič (Croatia, Slovenia, born 1975) Max Pavey (US, 1918–1957) Jiří Pelikán (Czechoslovakia, Argentina, 1906–1985) Yannick Pelletier (Switzerland, born 1976) Roman Pelts (Ukraine, Canada, born 1937) Peng Xiaomin (China, born 1973) Peng Zhaoqin (China, born 1968) Jonathan Penrose (England, 1933–2021) Corina Peptan (Romania, born 1978) Julius Perlis (Poland, Austria, 1880–1913) Frederic Perrin (England, US, 1815–1889) Raaphi Persitz (England, Israel, Switzerland, 1934–2009) Nick Pert (England, born 1981) John Peters (US, born 1951) Jusefs Petkevich (Latvia, born 1940) Arshak Petrosian (Armenia, born 1953) Davit G. Petrosian (Armenia, born 1984) Tigran Petrosian (Armenia, Georgia, USSR, 1929–1984) Alexander Petrov (Russia, 1794–1867) Vladimirs Petrovs (Latvia, 1907–1943) Gerhard Pfeiffer (Germany, 1923–2000) Helmut Pfleger (Germany, born 1943) François-André Danican Philidor (France, 1726–1795) Luis Piazzini (Argentina, 1905–1980) Jeroen Piket (Netherlands, born 1969) Harry Nelson Pillsbury (US, 1872–1906) Herman Pilnik (Germany, Argentina, 1914–1981) Karol Piltz (Poland, 1903–1939) Albert Pinkus (US, 1903–1984) József Pintér (Hungary, born 1953) Vasja Pirc (Slovenia, 1907–1980) Rudolf Pitschak (Czechoslovakia, US, 1902–1988) Karl Pitschel (Austria, 1829–1883) Aaron Pixton (US, born 1986) Ján Plachetka (Slovakia, born 1945) Albin Planinc (Slovenia, 1944–2008) James Plaskett (England, Spain, born 1960) Kazimierz Plater (Poland, 1915–2004) Igor Platonov (Ukraine, 1934–1995) Joseph Platz (Germany, US, 1905–1981) Isaias Pleci (Argentina, 1907–1979) David Podhorzer (Austria, 1907–1998) Natalia Pogonina (Russia, born 1985) Henryk Pogorieły (Poland, 1908–1943) Ernest Pogosyants (Ukraine, 1935–1990) Iosif Pogrebyssky (Ukraine, 1906–1971) Amos Pokorný (Czechoslovakia, 1890–1949) Rudolph Pokorny (Bohemia, Mexico, US, 1880–after 1920) Giulio Polerio (Italy, 1548–1612) Judit Polgár (Hungary, born 1976) Zsuzsa Polgar (Hungary, US, born 1969) Zsofia Polgar (Hungary, Israel, born 1974) Elisabeta Polihroniade (Romania, 1935–2016) David Polland (US, born 1915) William Pollock (United Kingdom, 1859–1896) Lev Polugaevsky (Belarus, Russia, 1934–1995) Arturo Pomar (Spain, 1931–2016) Ruslan Ponomariov (Ukraine, 1983) Domenico Ponziani (Italy, 1719–1796) Stepan Popel (Poland, France, US, 1909–1987) Ignatz von Popiel (Austria-Hungary, Poland, 1863–1941) Petar Popović (Yugoslavia, Serbia, born 1959) Artur Poplawski (Poland, Switzerland, 1860–1918) Yosef Porath (Germany, Israel, 1909–1996) Moritz Porges (Bohemia/Austria-Hungary, 1857–1909) Lajos Portisch (Hungary, born 1937) Ehrhardt Post (Germany, 1881–1947) Evgeny Postny (Israel, born 1981) Peter Potemkine (Russia, France, 1886–1926) Vladimir Potkin (Russia, born 1982) Ludovit Potuček (Slovakia, 1912–1982) Christian Poulsen (Denmark, 1912–1981) Atousa Pourkashiyan (Iran, born 1988) Borki Predojević (Bosnia, born 1987) Edith Charlotte Price (England, 1872–1952) Lodewijk Prins (Netherlands, 1913–1999) Svetlana Prudnikova (Russia, born 1967) Dawid Przepiórka (Poland, 1880–1942) Lev Psakhis (Russia, Israel, born 1958) Lenka Ptacnikova (Czechoslovakia, Iceland, born 1976) Stojan Puc (Slovenia, 1921–2004) Viktors Pupols (Latvia, US, born 1934) Cecil Purdy (New Zealand, Australia, 1906–1979) John Purdy (Australia, 1935–2011) Q Qi Jingxuan (China, born 1947) Qin Kanying (China, born 1974) Oscar Quiñones (Peru, born 1941) Miguel Quinteros (Argentina, born 1947) R Braslav Rabar (Croatia, 1919–1973) Abram Rabinovich (Lithuania, Russia, 1878–1943) Ilya Rabinovich (Russia, 1891–1942) Teimour Radjabov (Azerbaijan, born 1987) Ivan Radulov (Bulgaria, born 1939) Markus Ragger (Austria, born 1988) Viacheslav Ragozin (Russia, 1908–1962) Ziaur Rahman (Bangladesh, born 1974) Samaita Raina (India, born 1997) Maurice Raizman (Moldova/Russia, France 1905–1974) Iweta Rajlich (Poland, born 1981) Ramachandran Ramesh (India, born 1976) Alejandro Ramírez (Costa Rica, born 1988) Richárd Rapport (Hungary, born 1996) Nukhim Rashkovsky (Russia, born 1946) Ilmar Raud (Estonia, Argentina, 1913–1941) Vsevolod Rauzer (Ukraine, 1908–1941) Yuri Razuvayev (Russia, 1945–2012) Damian Reca (Argentina, 1894–1937) Hans Ree (Netherlands, born 1944) Brian Reilly (France, England, Ireland, 1901–1991) Dimitri Reinderman (Netherlands, born 1972) Fred Reinfeld (US, 1910–1964) Heinrich Reinhardt (Germany, Argentina, 1903–1990) Salome Reischer (Austria, Palestine, US, 1899–1980) Teodor Regedziński (Poland, 1894–1954) Arturo Reggio (Italy, 1863–1917) Josef Rejfir (Czechoslovakia, 1909–1962) Ludwig Rellstab (Germany, 1904–1983) Georges Renaud (France, 1893–1975) Samuel Reshevsky (Poland, US, 1911–1992) Pál Réthy (Hungary, 1905–1962) Richard Réti (Austria-Hungary, Czechoslovakia, 1889–1929) Ramón Rey Ardid (Spain, 1903–1988) Alexander Riazantsev (Russia, born 1985) Zoltán Ribli (Hungary, born 1951) Pablo Ricardi (Argentina, born 1962) Isaac Rice (US, 1850–1915) Kurt Richter (Germany, 1900–1969) Antonio Rico (Spain, 1908–1988) Alessandra Riegler (Italy, born 1961) Fritz Riemann (Germany, 1859–1932) Friedl Rinder (Germany, 1905–2001) Horst Rittner (Germany, 1930–2021) Nikolai Riumin (Russia, 1908–1942) Jules Arnous de Rivière (France, 1830–1905) Karl Robatsch (Austria, 1928–2000) Walter Robinow (Germany, 1867–1938) Ray Robson (US, born 1994) Ludwig Rödl (Germany, 1907–1970) Maxim Rodshtein (Israel, born 1989) Hans Roepstorff (Germany, 1910–1945) Ian Rogers (Australia, born 1960) Gustav Rogmann (Germany, 1909–1947) Kenneth Rogoff (US, born 1953) Dorian Rogozenko (Romania, born 1973) Ivan Vladimir Rohaček (Slovakia, 1909–1977) Michael Rohde (US, born 1959) Michael Roiz (Russia, Israel born 1983) Oleg Romanishin (Ukraine, born 1952) Alexander Romanovsky (Lithuania, Russia, 1880–1943) Peter Romanovsky (Russia, 1892–1964) Max Romih (Croatia, Italy, 1893–1979) Chris de Ronde (Netherlands, Argentina, 1912–1996) Catharina Roodzant (Netherlands, 1896–1999) Salme Rootare (Estonia, 1913–1987) Vidrik Rootare (Estonia, c. 1900 – 1985) Jakob Rosanes (Ukraine/Austria-Hungary, Germany, 1842–1922) Bernardo Roselli (Uruguay, born 1965) Leon Rosen (Poland, US, 1869–1942) Andreas Rosendahl (Denmark, 1864–1909) Karl Wilhelm Rosenkrantz (Latvia, Russia, 1876–after 1928) Jacob Rosenthal (US, 1881–1954) Samuel Rosenthal (Poland, France 1837–1902) Laura Ross (US, born 1988) Stefano Rosselli del Turco (Italy, 1877–1947) Héctor Rossetto (Argentina, 1922–2009) Nicolas Rossolimo (Ukraine, France, US, 1910–1975) Gersz Rotlewi (Poland, 1889–1920) Eugéne Rousseau (France, c. 1810 – c. 1870) Jonathan Rowson (Scotland, born 1977) Solomon Rozental (Lithuania, Belarus, Russia, 1890–1955) Eduardas Rozentalis (Lithuania, born 1963) Vesna Rožič (Slovenia, 1987–2013) Levy Rozman (US, born 1995) Ruan Lufei (China, born 1987) Serge Rubanraut (China, Australia, 1948–2008) Karl Ruben (Denmark, 1903–1938) Jorge Rubinetti (Argentina, 1945–2016) Akiba Rubinstein (Poland, Germany, Belgium, 1882–1961) Emanuel Rubinstein (Poland, 1897–?) José Rubinstein (Argentina, 1940–1997) Simon Rubinstein (Austria, South Africa, c. 1910–1942) Solomon Rubinstein (Poland, US, 1868–1931) Sergei Rublevsky (Russia, born 1974) Olga Rubtsova (Russia, 1909–1994) Iosif Rudakovsky (Ukraine, 1914–1947) Lyudmila Rudenko (Ukraine, Russia, 1904–1986) Mary Rudge (England, 1842–1919) Nikoly Rudnev (Ukraine, Uzbekistan, 1895–1944) Anna Rudolf (Hungary, born 1987) Alexander Rueb (Netherlands, 1882–1959) Mikhail Rytshagov (Estonia, born 1967) S Peter Alexandrovich Saburov (Russia, 1835–1918) Peter Petrovich Saburov (Russia, Switzerland, 1880–1932) Antonio Sacconi (Italy, 1895–1968) Matthew Sadler (England, born 1974) Darmen Sadvakasov (Kazakhstan, born 1979) Yousof Safvat (Iran, 1940–2003) Pierre Charles Fournier de Saint-Amant (France, 1800–1872) Jaroslav Šajtar (Czechoslovakia, 1921–2003) Konstantin Sakaev (Russia, born 1974) Yuri Sakharov (Ukraine, 1922–1981) Valery Salov (Russia, born 1964) Alessandro Salvio (Italy, c. 1570 – c. 1640) Gersz Salwe (Poland, 1862–1920) Friedrich (Fritz) Sämisch (Germany, 1896–1975) Sergiu Samarian (Romania, Germany, 1923–1991) Grigory Sanakoev (Russia, 1935–2021) Luis Augusto Sánchez (Colombia, 1917–1981) Albert Sandrin Jr. (US, 1923–2004) Raúl Sanguineti (Argentina, 1933–2000) Anthony Santasiere (US, 1904–1977) Emmanuel Sapira (Romania, Belgium, 1900–1943) Ortvin Sarapu (Estonia, New Zealand, 1924–1999) Jonathan Sarfati (Australia, New Zealand, born 1964) Gabriel Sargissian (Armenia, born 1983) Ivan Šarić (Croatia, born 1990) Nihal Sarin (India, born 2004) Zoltan Sarosy (Hungary, Canada, 1906–2017) Jacob Sarratt (England, 1772–1819) Jeff Sarwer (Canada, born 1978) Krishnan Sasikiran (India, born 1981) Harold Saunders (England, 1875–1950) Stanislav Savchenko (Ukraine, born 1967) Vladimir Savon (Ukraine, 1940–2005) Gyula Sax (Hungary, 1951–2014) Emil Schallopp (Germany, 1843–1919) Morris Schapiro (Lithuania, US, 1903–1996) Willem Schelfhout (Netherlands, 1874–1951) Theodor von Scheve (Germany, 1851–1922) Emanuel Schiffers (Russia, 1850–1904) Willi Schlage (Germany, 1888–1940) Carl Schlechter (Austria, 1874–1918) Roland Schmaltz (Germany, born 1974) Carl Friedrich Schmid (Latvia, 1840–1897) Lothar Schmid (Germany, 1928–2013) Paul Felix Schmidt (Estonia, Germany, US, 1916–1984) Wlodzimierz Schmidt (Poland, born 1943) Ludwig Schmitt (Germany, 1902–1980) Wilhelm Schönmann (Germany, 1889–1970) Georg Schories (Germany, 1874–1934) Karl Schorn (Germany, 1803–1850) Arnold Schottländer (Germany, 1854–1909) František Schubert (Czechoslovakia, 1894–1940) John William Schulten (US, 1821–1875) Jan Schulz (Czechoslovakia, 1899–1953) Aaron Schwartzman (Argentina, 1908–2013) Gabriel Schwartzman (Romania, US, born 1976) Leon Schwartzmann (Poland, France, 1887–1942) Paulette Schwartzmann (Latvia, France, Argentina, 1894–1953?) Adolf Schwarz (Hungary, Austria, 1836–1910) Jacques Schwarz (Austria, 1856–1921) Samuel Schweber (Argentina, 1936–2017) Marie Sebag (France, born 1986) Yasser Seirawan (Syria, US, born 1960) Adolf Seitz (Germany, Argentina 1898–1970) Alexey Selezniev (Russia, France, 1888–1967) Lidia Semenova (Ukraine, born 1951) Olav Sepp (Estonia, born 1969) Edward Guthlac Sergeant (England, 1881–1961) Philip Walsingham Sergeant (England, 1872–1952) Aleksandr Sergeyev (Russia, 1897–1970) Drazen Sermek (Slovenia, born 1969) Gregory Serper (Uzbekistan, US, born 1969) Samuel Sevian (US, born 2000) Alexander Shabalov (Latvia, US, born 1967) Greg Shahade (US, born 1978) Jennifer Shahade (US, born 1980) Leonid Shamkovich (Russia, Israel, US, 1923–2005) Gauri Shankar (India, born 1992) Samuel Shankland (US, born 1991) Andrey Shariyazdanov (Russia, born 1976) Elizabeth Shaughnessy (Ireland, US, born 1937) Shen Yang (China, born 1989) James Sherwin (US, England, born 1933) Sergei Shipov (Russia, born 1966) Kamran Shirazi (Iran, US, France, born 1952) Alexei Shirov (Latvia, Spain, born 1972) Nigel Short (England, born 1965) Jackson Showalter (US, 1860–1935) Yury Shulman (Belarus, US, born 1975) Ilya Shumov (Russia, 1819–1881) Polina Shuvalova (Russia, born 2001) Félix Sicre (Cuba, 1817–1871) Bruno Edgar Siegheim (Germany, South Africa, 1875–1952) Guðmundur Sigurjónsson (Iceland, born 1947) Jeremy Silman (US, born 1954) Vladimir Simagin (Russia, 1919–1968) Albert Simonson (US, 1914–1965) Amon Simutowe (Zambia, born 1982) Marcel Sisniega Campbell (Mexico, 1959–2013) Stanislaus Sittenfeld (Poland, France, 1865–1902) Sanan Sjugirov (Russia, born 1993) Karel Skalička (Czechoslovakia, Argentina, 1896–1979) Almira Skripchenko (Moldova, France, born 1976) Bogdan Śliwa (Poland, 1922–2003) Sam Sloan (United States, born 1944) Roman Slobodjan (Germany, born 1975) Jørn Sloth (Denmark, born 1944) Jan Smeets (Netherlands, born 1985) Jan Smejkal (Czechoslovakia, born 1946) David Smerdon (Australia, born 1984) Shlomo Smiltiner (Israel, 1915–2015) Ilya Smirin (Belarus, Israel, born 1968) Pavel Smirnov (Russia, born 1982) Stephen Francis Smith (Canada, England, 1861–1928) Vasily Osipovich Smyslov (Russia, 1881–1943) Vasily Smyslov (Russia, 1921–2010) Wesley So (Philippines, born 1993) Bartosz Soćko (Poland, born 1978) Monika Soćko (Poland, born 1978) Andrei Sokolov (Russia, France, born 1963) Ivan Sokolov (Bosnia, Netherlands, born 1968) Alexey Sokolsky (Russia, Ukraine, Belarus, 1908–1969) Dragan Solak (Serbia, 1980) Alexander Solovtsov (Russia, 1847–1923) Andrew Soltis (US, born 1947) Ariel Sorin (Argentina, born 1967) Genna Sosonko (Russia, Netherlands, born 1943) Victor Soultanbeieff (Russia, Belgium, 1895–1972) Vladimir Sournin (Russia, US, 1875–1942) João de Souza Mendes (Brazil, 1892–1969) Hugo Spangenberg (Argentina, born 1975) Vasil Spasov (Bulgaria, born 1971) Boris Spassky (Russia, France, born 1937) Jon Speelman (England, born 1956) Abraham Speijer (Netherlands, 1873–1956) Rudolf Spielmann (Austria, Sweden, 1883–1942) Kevin Spraggett (Canada, born 1954) Ana Srebrnič (Slovenia, born 1984) Gideon Ståhlberg (Sweden, 1908–1967) Wilhelm von Stamm (Latvia, ?–1905) Phillip Stamma (Syria, England, France, 1705–1755) Nikolaus Stanec (Austria, born 1968) Charles Stanley (England, US, 1819–1901) Nava Starr (Latvia, Canada, born 1949) Howard Staunton (England, 1810–1874) Michael Stean (England, born 1953) Antoaneta Stefanova (Bulgaria, born 1979) Hannes Stefansson (Iceland, born 1972) Elias Stein (Alsace, Netherlands, 1748–1812) Leonid Stein (Ukraine, 1934–1973) Endre Steiner (Hungary, 1901–1944) Lajos Steiner (Hungary, Australia 1903–1975) Herman Steiner (Slovakia/Hungary, US, 1905–1955) Wilhelm Steinitz (Bohemia, Austria, England, US, 1836–1900) Daniel Stellwagen (Netherlands, born 1987) Károly Sterk (Hungary, 1881–1946) Adolf Stern (Germany, 1849–1907) Agnes Stevenson (England, before 1901–1935) Lara Stock (Croatia, born 1992) Mark Stolberg (Russia, 1922–1943) Gösta Stoltz (Sweden, 1904–1963) Leon Stolzenberg (Poland, US, 1895–1974) Zurab Sturua (Georgia, born 1964) Mihai Suba (Romania, born 1947)
by Christine Peterson, K. Eric Drexler, and James C. Bennett to support the development of nanotechnology. Many of the institute's initial members came to it from the L5 Society, who were hoping to form a smaller group more focused on nanotechnology. In 1991, the Foresight Institute created two suborganizations with funding from tech entrepreneur Mitch Kapor; the Institute for Molecular Manufacturing and the Center for Constitutional Issues in Technology. In the 1990s, the Foresight Institute launched several initiatives to provide funding to developers of nanotechnology. In 1993, it created the Feynman Prize in Nanotechnology, named after physicist Richard Feynman. In May 2005, the Foresight Institute changed its name to "Foresight Nanotech Institute", though it reverted to its original name in June 2009. In 2020, following the COVID-19 pandemic, the institute moved its programs online. Prizes The Feynman Prize in Nanotechnology is an award given by the Foresight Institute for significant advances in nanotechnology. Between 1993 and 1997, one prize was given biennially. Since 1997, two prizes have been given each year, divided into the categories of theory and experimentation. The prize is named in honor of physicist Richard Feynman, whose 1959 talk "There's Plenty of Room at the Bottom" is considered to have inspired and informed the start of the field of nanotechnology. Author Colin Milburn refers to the prize as an example of "fetishizing" its namesake Feynman, due to his "prestige as a scientist and his fame among the broader public." The Foresight Institute also offers the Feynman Grand Prize, a $250,000 award to the first persons to create both a nanoscale robotic arm capable of precise positional control and a nanoscale 8-bit adder, with both conditions conforming to given specifications. The Feynman Grand Prize is intended to emulate historical prizes such as the Longitude prize, Orteig Prize, Kremer prize, Ansari X Prize, and
Between 1993 and 1997, one prize was given biennially. Since 1997, two prizes have been given each year, divided into the categories of theory and experimentation. The prize is named in honor of physicist Richard Feynman, whose 1959 talk "There's Plenty of Room at the Bottom" is considered to have inspired and informed the start of the field of nanotechnology. Author Colin Milburn refers to the prize as an example of "fetishizing" its namesake Feynman, due to his "prestige as a scientist and his fame among the broader public." The Foresight Institute also offers the Feynman Grand Prize, a $250,000 award to the first persons to create both a nanoscale robotic arm capable of precise positional control and a nanoscale 8-bit adder, with both conditions conforming to given specifications. The Feynman Grand Prize is intended to emulate historical prizes such as the Longitude prize, Orteig Prize, Kremer prize, Ansari X Prize, and two prizes that were offered by Richard Feynman personally as challenges during his 1959 There's Plenty of Room at the Bottom" talk. In 2004, X-Prize Foundation founder Peter Diamandis was selected to chair the Feynman Grand Prize committee. See also Center on Nanotechnology and Society Nanomedicine Transhumanism References
type cherry shrimp Neocaridina heteropoda var. red, Cherry shrimp Neocaridina heteropoda var. yellow, Yellow shrimp Neocaridina heteropoda var. blue, Taiwan Pale Blue Shrimp Neocaridina palmata, Marbled dwarf shrimp Neocaridina cf. zhangjiajiensis var. blue pearl, Blue pearl shrimp Neocaridina cf. zhangjiajiensis var. white, Snowball shrimp Palaemonetes kadiakensis, Mississippi grass shrimp Palaemonetes ivonicus, amazon glass shrimp Palaemonetes paludosus, American ghost (glass, grass) shrimp Potamalpheops sp., purple zebra shrimp Xiphocaris elongata, Yellow nose shrimp Crayfish Cambarellus diminutus least dwarf crayfish Cambarellus montezumae, Acocil Cambarellus shufeldtii, Cajun Dwarf Crayfish Cambarellus patzcuarensis, Mexican Dwarf Crayfish Cherax boesemani, supernova crayfish Cherax destructor, Common Yabby Cherax peknyi, zebra crayfish Cherax quadricarinatus, Australian Red Claw Crayfish Cherax snowden, emerald fire crayfish Orconectes immunis, paper shell crayfish Orconectes limosus, spiny cheek crayfish Pacifastacus leniusculus, Signal Crayfish Procambarus alleni, Blue crayfish Procambarus braswelli, Waccamaw crayfish Procambarus clarkii, Red Swamp Crayfish Procambarus fallax forma virginalis, Marble Crayfish Procambarus milleri, Miami cave crayfish Crabs Limnopilos naiyanetri, Thai Micro Crabs Parathelphusa pantherina, Panther Crabs Ptychognathus barbatus, freshwater pom pom crab Branchiopods Lepidurus apus, golden tadpole shrimp Triops longicaudatus, longtail tadpole shrimp Triops australiensis, Australian tadpole shrimp Triops cancriformis, European tadpole shrimp Triops granarius, Asian tadpole shrimp Triops newberryi, desert tadpole shrimp Branchinella thailandensis, Thai fairy shrimp Branchinecta mackini, alkali fairy shrimp Branchinecta gigas, giant fairy shrimp Thamnocephalus platyurus, beavertail fairy shrimp Streptocephalus sealii, redtail fairy shrimp Streptocephalus sp., dry lake fairy shrimp Brachinecta sp., winter fairy shrimp Daphnia magna, large water flea Daphnia pulex, common water flea Moina, Japanese water flea Diplostraca, clam shrimp Isopods Asellus aquaticus, water slater Trachelipus rathkii, Rathki's Isopod(lives in periodical floods) Amphipods Gammarus pulex, freshwater shrimp Hyalella azteca, Mexican freshwater shrimp Copepods Cyclops sp., water flea Hermit crab Clibanarius fonticola, freshwater hermit
Yellow nose shrimp Crayfish Cambarellus diminutus least dwarf crayfish Cambarellus montezumae, Acocil Cambarellus shufeldtii, Cajun Dwarf Crayfish Cambarellus patzcuarensis, Mexican Dwarf Crayfish Cherax boesemani, supernova crayfish Cherax destructor, Common Yabby Cherax peknyi, zebra crayfish Cherax quadricarinatus, Australian Red Claw Crayfish Cherax snowden, emerald fire crayfish Orconectes immunis, paper shell crayfish Orconectes limosus, spiny cheek crayfish Pacifastacus leniusculus, Signal Crayfish Procambarus alleni, Blue crayfish Procambarus braswelli, Waccamaw crayfish Procambarus clarkii, Red Swamp Crayfish Procambarus fallax forma virginalis, Marble Crayfish Procambarus milleri, Miami cave crayfish Crabs Limnopilos naiyanetri, Thai Micro Crabs Parathelphusa pantherina, Panther Crabs Ptychognathus barbatus, freshwater pom pom crab Branchiopods Lepidurus apus, golden tadpole shrimp Triops longicaudatus, longtail tadpole shrimp Triops australiensis, Australian tadpole shrimp Triops cancriformis, European tadpole shrimp Triops granarius, Asian tadpole shrimp Triops newberryi, desert tadpole shrimp Branchinella thailandensis, Thai fairy shrimp Branchinecta mackini, alkali fairy shrimp Branchinecta gigas, giant fairy shrimp Thamnocephalus platyurus, beavertail fairy shrimp Streptocephalus sealii, redtail fairy shrimp Streptocephalus sp., dry lake fairy shrimp Brachinecta sp., winter fairy shrimp Daphnia magna, large water flea Daphnia pulex, common water flea Moina, Japanese water flea Diplostraca, clam shrimp Isopods Asellus aquaticus, water slater Trachelipus rathkii, Rathki's Isopod(lives in periodical floods) Amphipods Gammarus pulex, freshwater shrimp Hyalella azteca, Mexican freshwater shrimp Copepods Cyclops sp., water flea Hermit crab Clibanarius fonticola, freshwater hermit crab Molluscs Gastropods Asolene spixii (zebra apple snail) Marisa cornuarietis (Colombian ramshorn apple snail) Planorbidae species (ramshorn snails) Pomacea diffusa (spike-topped apple snail) Pomacea canaliculata (channeled apple snail) Physidae species (bladder or tadpole snails) Lymnaeidae (pond and melantho snails) Lymnaea stagnalis (great pond snail) Planorbarius corneus (Great Ramshorn) Melanoides tuberculata (red-rimmed melania or Malaysian trumpet snail) Tarebia granifera (quilted melania
By scientific name The taxonomy of most plant genera is not final. Scientific names listed here may, therefore, contradict other sources. Many of these species are dangerous invasives and should be disposed of in a way that guarantees that they will not enter local waters. Common aquarium plant species: Aciotis acuminifolia Acmella repens Acorus calamus (Common sweet flag) Acorus gramineus (Japanese sweet flag) Aldrovanda vesiculosa Alisma canaliculatum Alisma gramineum Alisma lanceolatum Alisma nanum Alisma orientale Alisma plantago-aquatica Alisma subcordatum Alisma triviale Alisma wahlenbergii Alternanthera bettzickiana Alternanthera philoxeroides Alternanthera reineckii Alternanthera sessilis Ammania capitellata Ammannia crassicaulis (Synonym Nesaea crassicaulis) Ammania gracilis (Delicate ammania, red ammania) Ammania latifolia Ammannia pedicellata Ammannia praetemissa Ammania senegalensis Anubias afzelii (Narrow-leafed anubias) Anubias barteri var. barteri (Broadleaved anubias) Anubias barteri var. angustifolia Anubias barteri var. caladiifolia Anubias barteri var. glabra Anubias barteri var. nana (Dwarf anubias) Anubias gigantea Anubias gilletti Anubias gracilis Anubias hastifolia Anubias heterophylla Anubias pynaertii Aponogeton appendiculatus Aponogeton bernierianus Aponogeton boivinianus Aponogeton capuronii Aponogeton crispus (Crinkled or ruffled aponogeton) Aponogeton decartyi Aponogeton desertorum Aponogeton dioecus Aponogeton distachyos Aponogeton elongatus Aponogeton fenestralis Aponogeton henkelianus Aponogeton junceus Aponogeton longiplumulosus Aponogeton loriae Aponogeton madagascariensis (Madagascar laceleaf, lace plant) Aponogeton natans Aponogeton rigidifolius Aponogeton tenuispicatus Aponogeton ulvaceus (Compact apongeton) Aponogeton undulatus Armoracia aquatica Arthraxon hispidus Azolla caroliniana (water velvet, mosquito fern) Azolla filiculoïdes (Azolla, moss fern) Azolla pinnata Bacopa amplexicaulis Bacopa australis Bacopa caroliniana (lemon bacopa, water hyssop, giant bacopa) Bacopa crenata Bacopa innominata Bacopa lanigera Bacopa madagascarensis Bacopa monnieri (water hyssop, dwarf bacopa, baby tears) Bacopa myriophylloides Bacopa rotundifolia (Round bacopa) Bacopa salzmannii Bacopa serpyllifolia Baldellia ranunculoides Barclaya longifolia (Orchid lily) Barclaya motleyi Berula erecta Blyxa aubertii Blyxa echinosperma Blyxa japonica (Japanese rush) Blyxa novoguineensis Blyxa octandra Bolbitis heteroclita (sometimes sold as B. asiatica) Bolbitis heudelotii (African or Congo fern) Bucephalandra gigantea Bucephalandra motleyana Bucephalandra catherineae Cabomba aquatica (Yellow cabomba, giant cabomba) Cabomba caroliniana (Green cabomba) Cabomba furcata Cabomba palaeformis Cabomba piauhyensis (Red cabomba) Caldesia parnassifolia Calla palustris Caltha palustris Callitriche hamulata Callitriche hermaphroditica Callitriche palustris Callitriche stagnalis Callitriche terestris Cardamine lyrata (Chinese ivy, Japanese cress) Cardamine rotundifolia Ceratophyllum demersum (hornwort) Ceratophyllum submersum (tropical hornwort) Ceratopteris cornuta Ceratopteris pteridoides Ceratopteris thalictroides (water sprite) Cladophora aegagropila Clinopodium brownei Crassula aquatica Crassula helmsii Crinum calamistratum Crinum natans (African onion plant) Crinum purpurascens Crinum thaianum (water onion) Cryptocoryne affinis Cryptocoryne alba Cryptocoryne albida Cryptocoryne aponogetifolia Cryptocoryne auriculata Cryptocoryne axelrodii Cryptocoryne balansae Cryptocoryne beckettii (Beckett's Cryptocoryne) Cryptocoryne blassii Cryptocoryne bogneri Cryptocoryne bullosa Cryptocoryne ciliata Cryptocoryne cognata Cryptocoryne cordata (Giant cryptocoryne) Cryptocoryne crispatula Cryptocoryne cruddasiana Cryptocoryne dewitii Cryptocoryne diderici Cryptocoryne elliptica Cryptocoryne ferruginea Cryptocoryne fusca Cryptocoryne gasserii Cryptocoryne grabowskii Cryptocoryne gracilis Cryptocoryne griffithii Cryptocoryne hudoroi Cryptocoryne keei Cryptocoryne legroi Cryptocoryne lingua Cryptocoryne longicauda Cryptocoryne lucens Cryptocoryne lutea Cryptocoryne minima Cryptocoryne moehlmannii (Moehlmann's cryptocoryne) Cryptocoryne nevillii Cryptocoryne nurii Cryptocoryne pallidinervia Cryptocoryne parva (Tiny cryptocoryne) Cryptocoryne petchii Cryptocoryne pontederiifolia Cryptocoryne purpurea Cryptocoryne retrospiralis Cryptocoryne schulzei Cryptocoryne scrurillis Cryptocoryne siamensis Cryptocoryne spiralis Cryptocoryne striolata Cryptocoryne thwaitesii Cryptocoryne tonkinensis Cryptocoryne undulata (Undulate cryptocoryne) Cryptocoryne usteriana Cryptocoryne venemae Cryptocoryne versteegii Cryptocoryne walkeri Cryptocoryne wendtii 'Tropica' Cryptocoryne x willisii Cryptocoryne zewaldiae Cryptocoryne zonata Cryptocoryne zukalii Cuphea anagalloidea Cyperus alternifolius Cyperus helferi Cyperus papyrus Damasonium alisma Didiplis diandra (Water hedge) Diodia kuntzei Diodia virginiana Echinodorus africanus Echinodorus amazonicus (Amazon sword) Echinodorus andrieuxii Echinodorus angustifolius Echinodorus argentinensis Echinodorus aschersonianus Echinodorus barthii Echinodorus berteroi Echinodorus bleheri (Broadleaved amazon) Echinodorus brevipedicellatus Echinodorus cordifolius (Radicans sword, spade leaf sword) Echinodorus fluitans Echinodorus grandiflorus (Large-flowered amazon) Echinodorus horemanii (Black-red amazon) Echinodorus horizontalis Echinodorus humilis Echinodorus latifolius Echinodorus longiscapus Echinodorus macrophyllus (Large-leaved amazon sword) Echinodorus martii Echinodorus major (Ruffled amazon sword) Echinodorus opacus (Opaque amazon sword) Echinodorus osiris (Red amazon sword) Echinodorus 'Ozelot' Echinodorus palaefolius Echinodorus paniculatus Echinodorus parviflorus (Black amazon sword) Echinodorus pelliscidus Echinodorus quadricostatus (Dwarf sword) Echinodorus radicans Echinodorus rigidifolius Echinodorus 'Rubin' Echinodorus rubra Echinodorus schlueteri Echinodorus subalatus Echinodorus tunicatus Echinodorus uruguayensis (Uruguay amazon sword) Egeria densa (Elodea, pondweed) Egeria najas Egleria fluctuans Eichhornia azurea Eichhornia crassipes (Water hyacinth) Eichhornia diversifolia
living at the water margins, still, they can live in the completely submerged habitat. By scientific name The taxonomy of most plant genera is not final. Scientific names listed here may, therefore, contradict other sources. Many of these species are dangerous invasives and should be disposed of in a way that guarantees that they will not enter local waters. Common aquarium plant species: Aciotis acuminifolia Acmella repens Acorus calamus (Common sweet flag) Acorus gramineus (Japanese sweet flag) Aldrovanda vesiculosa Alisma canaliculatum Alisma gramineum Alisma lanceolatum Alisma nanum Alisma orientale Alisma plantago-aquatica Alisma subcordatum Alisma triviale Alisma wahlenbergii Alternanthera bettzickiana Alternanthera philoxeroides Alternanthera reineckii Alternanthera sessilis Ammania capitellata Ammannia crassicaulis (Synonym Nesaea crassicaulis) Ammania gracilis (Delicate ammania, red ammania) Ammania latifolia Ammannia pedicellata Ammannia praetemissa Ammania senegalensis Anubias afzelii (Narrow-leafed anubias) Anubias barteri var. barteri (Broadleaved anubias) Anubias barteri var. angustifolia Anubias barteri var. caladiifolia Anubias barteri var. glabra Anubias barteri var. nana (Dwarf anubias) Anubias gigantea Anubias gilletti Anubias gracilis Anubias hastifolia Anubias heterophylla Anubias pynaertii Aponogeton appendiculatus Aponogeton bernierianus Aponogeton boivinianus Aponogeton capuronii Aponogeton crispus (Crinkled or ruffled aponogeton) Aponogeton decartyi Aponogeton desertorum Aponogeton dioecus Aponogeton distachyos Aponogeton elongatus Aponogeton fenestralis Aponogeton henkelianus Aponogeton junceus Aponogeton longiplumulosus Aponogeton loriae Aponogeton madagascariensis (Madagascar laceleaf, lace plant) Aponogeton natans Aponogeton rigidifolius Aponogeton tenuispicatus Aponogeton ulvaceus (Compact apongeton) Aponogeton undulatus Armoracia aquatica Arthraxon hispidus Azolla caroliniana (water velvet, mosquito fern) Azolla filiculoïdes (Azolla, moss fern) Azolla pinnata Bacopa amplexicaulis Bacopa australis Bacopa caroliniana (lemon bacopa, water hyssop, giant bacopa) Bacopa crenata Bacopa innominata Bacopa lanigera Bacopa madagascarensis Bacopa monnieri (water hyssop, dwarf bacopa, baby tears) Bacopa myriophylloides Bacopa rotundifolia (Round bacopa) Bacopa salzmannii Bacopa serpyllifolia Baldellia ranunculoides Barclaya longifolia (Orchid lily) Barclaya motleyi Berula erecta Blyxa aubertii Blyxa echinosperma Blyxa japonica (Japanese rush) Blyxa novoguineensis Blyxa octandra Bolbitis heteroclita (sometimes sold as B. asiatica) Bolbitis heudelotii (African or Congo fern) Bucephalandra gigantea Bucephalandra motleyana Bucephalandra catherineae Cabomba aquatica (Yellow cabomba, giant cabomba) Cabomba caroliniana (Green cabomba) Cabomba furcata Cabomba palaeformis Cabomba piauhyensis (Red cabomba) Caldesia parnassifolia Calla palustris Caltha palustris Callitriche hamulata Callitriche hermaphroditica Callitriche palustris Callitriche stagnalis Callitriche terestris Cardamine lyrata (Chinese ivy, Japanese cress) Cardamine rotundifolia Ceratophyllum demersum (hornwort) Ceratophyllum submersum (tropical hornwort) Ceratopteris cornuta Ceratopteris pteridoides Ceratopteris thalictroides (water sprite) Cladophora aegagropila Clinopodium brownei Crassula aquatica Crassula helmsii Crinum calamistratum Crinum natans (African onion plant) Crinum purpurascens Crinum thaianum (water onion) Cryptocoryne affinis Cryptocoryne alba Cryptocoryne albida Cryptocoryne aponogetifolia Cryptocoryne auriculata Cryptocoryne axelrodii Cryptocoryne balansae Cryptocoryne beckettii (Beckett's Cryptocoryne) Cryptocoryne blassii Cryptocoryne bogneri Cryptocoryne bullosa Cryptocoryne ciliata Cryptocoryne cognata Cryptocoryne cordata (Giant cryptocoryne) Cryptocoryne crispatula Cryptocoryne cruddasiana Cryptocoryne dewitii Cryptocoryne diderici Cryptocoryne elliptica Cryptocoryne ferruginea Cryptocoryne fusca Cryptocoryne gasserii Cryptocoryne grabowskii Cryptocoryne gracilis Cryptocoryne griffithii Cryptocoryne hudoroi Cryptocoryne keei Cryptocoryne legroi Cryptocoryne lingua Cryptocoryne longicauda Cryptocoryne lucens Cryptocoryne lutea Cryptocoryne minima Cryptocoryne moehlmannii (Moehlmann's cryptocoryne) Cryptocoryne nevillii Cryptocoryne nurii Cryptocoryne pallidinervia Cryptocoryne parva (Tiny cryptocoryne) Cryptocoryne petchii Cryptocoryne pontederiifolia Cryptocoryne purpurea Cryptocoryne retrospiralis Cryptocoryne schulzei Cryptocoryne scrurillis Cryptocoryne siamensis Cryptocoryne spiralis Cryptocoryne striolata Cryptocoryne thwaitesii Cryptocoryne tonkinensis Cryptocoryne undulata (Undulate cryptocoryne) Cryptocoryne usteriana Cryptocoryne venemae Cryptocoryne versteegii Cryptocoryne walkeri Cryptocoryne wendtii 'Tropica' Cryptocoryne x willisii Cryptocoryne zewaldiae Cryptocoryne zonata Cryptocoryne zukalii Cuphea anagalloidea Cyperus alternifolius Cyperus helferi Cyperus papyrus Damasonium alisma Didiplis diandra (Water hedge) Diodia kuntzei Diodia virginiana Echinodorus africanus Echinodorus amazonicus (Amazon sword) Echinodorus andrieuxii Echinodorus angustifolius Echinodorus argentinensis Echinodorus aschersonianus Echinodorus barthii Echinodorus berteroi Echinodorus bleheri (Broadleaved amazon) Echinodorus brevipedicellatus Echinodorus cordifolius (Radicans sword, spade leaf sword) Echinodorus fluitans Echinodorus grandiflorus (Large-flowered amazon) Echinodorus horemanii (Black-red amazon) Echinodorus horizontalis Echinodorus humilis Echinodorus latifolius Echinodorus longiscapus Echinodorus macrophyllus (Large-leaved amazon sword) Echinodorus martii Echinodorus major (Ruffled amazon sword) Echinodorus opacus (Opaque amazon sword) Echinodorus osiris (Red amazon sword) Echinodorus 'Ozelot' Echinodorus palaefolius Echinodorus paniculatus Echinodorus parviflorus (Black amazon sword) Echinodorus pelliscidus Echinodorus quadricostatus (Dwarf sword) Echinodorus radicans Echinodorus rigidifolius Echinodorus 'Rubin' Echinodorus rubra Echinodorus schlueteri Echinodorus subalatus Echinodorus tunicatus Echinodorus uruguayensis (Uruguay amazon sword) Egeria densa (Elodea, pondweed) Egeria najas Egleria fluctuans Eichhornia azurea Eichhornia crassipes (Water hyacinth) Eichhornia diversifolia Elatine gussonei Elatine hydropiper Elatine macropoda Elatine triandra Eleocharis acicularis (Hairgrass) Eleocharis dulcis Eleocharis minima Eleocharis obtusa Eleocharis parvula Eleocharis vivipara Elodea canadensis (Canadian pondweed) Elodea granatensis Elodea nuttallii Elodea occidentalis Equisetum spp. Eriocaulon amanoanum Eriocaulon
a very small corselet, and over that a red jacket with blue and black velvet facings. The skirt is brown above and red below, with a blue band between the two colours; it is accordion-pleated. Two identical skirts are often worn, one above the other. The unmarried girls wear white kerchiefs, the married women black. Neighborhoods Neighborhoods in Fonni are called "Rioni" of these the oldest is called su piggiu or the peak, probably derived by the fact this is the highest and first layer of the village. Others include puppuai and cresiedda to the south, and
(Italy). It is the highest town in Sardinia, and situated among fine scenery with some chestnut woods. Fonni is a winter sports centre with a ski lift to Monte Spada and Bruncu Spina. Etymology The term "Fonni/-e" probably derives from the Latin fons, meaning "fountain" or "god of the sources". In fact the village contains numerous spring water fountains. Culture The local costumes are extremely picturesque, and are well seen on the day of St John the Baptist, the patron saint. The men's costume is similar to that worn in the district generally; the linen
the tribunal of Marcus Caelius, and Vatia Isauricus used one to destroy Caelius's magisterial chair (sella curulis). An occasional variation on the fasces was the addition of a laurel wreath, symbolizing victory. This occurred during the celebration of a Triumph — essentially a victory parade through Rome by a returning victorious general. Previously, all Republican Roman commanding generals had held high office with imperium, and so, already were entitled to the lictors and fasces. Usage Numerous governments and other authorities have used the image of the fasces as a symbol of power since the end of the Roman Empire. It also has been used to hearken back to the Roman Republic, particularly by those who see themselves as modern-day successors to that republic or its ideals. The Ecuadorian coat of arms incorporated the fasces in 1830, although it had already been in use in the coat of arms of Gran Colombia. Italy The Italian word fascio (plural fasci), etymologically related to fasces, was used by various political organizations in the late 19th and early 20th centuries with the figurative meaning of "league" or "union". Italian Fascism, which derives its name from the fasces, arguably used this symbolism the most in the twentieth century. The British Union of Fascists also used it in the 1930s. The fasces, as a widespread and long-established symbol in the West, however, has avoided the stigma associated with much of fascist symbolism, and many authorities continue to display them, including the federal government of the United States. France A review of the images included in Les Grands Palais de France : Fontainebleau reveals that French architects used the Roman fasces (faisceaux romains) as a decorative device as early as the reign of Louis XIII (1610–1643) and continued to employ it through the periods of Napoleon I's Empire (1804–1815). The fasces typically appeared in a context reminiscent of the Roman Republic and of the Roman Empire. The French Revolution used many references to the ancient Roman Republic in its imagery. During the First Republic, topped by the Phrygian cap, the fasces is a tribute to the Roman Republic and means that power belongs to the people. It also symbolizes the "unity and indivisibility of the Republic", as stated in the French Constitution. In 1848 and after 1870, it appears on the seal of the French Republic, held by the figure of Liberty. There is the fasces in the arms of the French Republic with the "RF" for République française (see image below), surrounded by leaves of olive tree (as a symbol of peace) and oak (as a symbol of justice). While it is used widely by French officials, this symbol never was officially adopted by the government. The fasces appears on the helmet and the buckle insignia of the French Army's Autonomous Corps of Military Justice, as well as on that service's distinct cap badges for the prosecuting and defending lawyers in a court-martial. United States Since the original founding of the United States in the 18th century, several offices and institutions in the United States have heavily incorporated representations of the fasces into much of their iconography. Federal fasces iconography On the podium of the Emancipation Memorial in Washington D.C., beneath Abraham Lincoln's right hand. The reverse of the Mercury Dime, the design used until the adoption of the current FDR dime in 1945, features a fasces. On the obverse of the 1896 $1 Educational Series note there is a fasces leaning against the wall behind the youth. In the Oval Office, above the door leading to the exterior walkway, and above the corresponding door on the opposite wall, which leads to the president's private office; note: the fasces depicted have no axes, possibly because in the Roman Republic, the blade was always removed from the bundle whenever the fasces were carried inside the city, in order to symbolize the rights of citizens against arbitrary state power (see above) Two fasces appear on either side of the flag of the United States behind the podium in the United States House of Representatives, with bronze examples replacing the previous gilded iron installments during the remodeling project of 1950. The Mace of the United States House of Representatives resembles fasces and consists of thirteen ebony rods bound together in the same fashion as the fasces, topped by a silver eagle on a globe The official seal of the United States Senate has as one component a pair of crossed fasces Fasces ring the base of the Statue of Freedom atop the United States Capitol building A frieze on the facade of the United States Supreme Court building depicts the figure of a Roman centurion holding a fasces, to represent "order" The National Guard uses the fasces on the seal of the National Guard Bureau, and it appears in the insignia of Regular Army officers assigned to National Guard liaison and in the insignia and unit symbols of National Guard units themselves; for instance, the regimental crest of the 71st Infantry Regiment (New York) of the New York National Guard consisted of a gold fasces set on a blue background At the Lincoln Memorial, Lincoln's seat of state bears the fasces—without axes—on the fronts of its arms; fasces also appear on the pylons flanking the main staircase leading into the memorial The official seal of the United States Tax
Rome, beginning with the early Roman Kingdom and continuing through the republican and imperial periods. By republican times, use of the fasces was surrounded with tradition and protocol. A corps of apparitores (subordinate officials) called lictors each carried fasces before a magistrate, in a number corresponding to his rank. Lictors preceded consuls (and proconsuls), praetors (and propraetors), dictators, curule aediles, quaestors, and the Flamen Dialis during Roman triumphs (public celebrations held in Rome after a military conquest). According to Livy, it is likely that the lictors were an Etruscan tradition, adopted by Rome. The highest magistrate, the dictator, was entitled to twenty-four lictors and fasces, the consul to twelve, the proconsul eleven, the praetor six (two within the pomerium), the propraetor five, and the curule aediles two. Another part of the symbolism developed in Republican Rome was the inclusion of just a single-headed axe in the fasces, with the blade projecting from the bundle. The axe indicated that the magistrate's judicial powers (imperium) included capital punishment. Fasces carried within the Pomerium—the boundary of the sacred inner city of Rome—had their axe blades removed; within the city, the power of life and death rested with the people through their assemblies. During times of emergency, however, the Roman Republic might choose a dictator to lead for a limited time period, such as Lucius Quinctius Cincinnatus, who was the only magistrate to be granted capital punishment authority within the Pomerium. Lictors attending the dictator kept the axes in their fasces even inside the Pomerium—a sign that the dictator had the ultimate power in his own hands. There were exceptions to this rule: in 48 BC, guards holding bladed fasces guided Vatia Isauricus to the tribunal of Marcus Caelius, and Vatia Isauricus used one to destroy Caelius's magisterial chair (sella curulis). An occasional variation on the fasces was the addition of a laurel wreath, symbolizing victory. This occurred during the celebration of a Triumph — essentially a victory parade through Rome by a returning victorious general. Previously, all Republican Roman commanding generals had held high office with imperium, and so, already were entitled to the lictors and fasces. Usage Numerous governments and other authorities have used the image of the fasces as a symbol of power since the end of the Roman Empire. It also has been used to hearken back to the Roman Republic, particularly by those who see themselves as modern-day successors to that republic or its ideals. The Ecuadorian coat of arms incorporated the fasces in 1830, although it had already been in use in the coat of arms of Gran Colombia. Italy The Italian word fascio (plural fasci), etymologically related to fasces, was used by various political organizations in the late 19th and early 20th centuries with the figurative meaning of "league" or "union". Italian Fascism, which derives its name from the fasces, arguably used this symbolism the most in the twentieth century. The British Union of Fascists also used it in the 1930s. The fasces, as a widespread and long-established symbol in the West, however, has avoided the stigma associated with much of fascist symbolism, and many authorities continue to display them, including the federal government of the United States. France A review of the images included in Les Grands Palais de France : Fontainebleau reveals that French architects used the Roman fasces (faisceaux romains) as a decorative device as early as the reign of Louis XIII (1610–1643) and continued to employ it through the periods of Napoleon I's Empire (1804–1815). The fasces typically appeared in a context reminiscent of the Roman Republic and of the Roman Empire. The French Revolution used many references to the ancient Roman Republic in its imagery. During the First Republic, topped by the Phrygian cap, the fasces is a tribute to the Roman Republic and means that power belongs to the people. It also symbolizes the "unity and indivisibility of the Republic", as stated in the French Constitution. In 1848 and after 1870, it appears on the seal of the French Republic, held by the figure of Liberty. There is the fasces in the arms of the French Republic with the "RF" for République française (see image below), surrounded by leaves of olive tree (as a symbol of peace) and oak (as a symbol of justice). While it is used widely by French officials, this symbol never was officially adopted by the government. The fasces appears on the helmet and the buckle insignia of the French Army's Autonomous Corps of Military Justice, as well as on that service's distinct cap badges for the prosecuting and defending lawyers in a court-martial. United States Since the original founding of the United States in the 18th century, several offices and institutions in the United States have heavily incorporated representations of the fasces into much of their iconography. Federal fasces iconography On the podium of the Emancipation Memorial in Washington D.C., beneath Abraham Lincoln's right hand. The reverse of the Mercury Dime, the design used until the adoption of the current FDR dime in 1945, features a fasces. On the obverse of the 1896 $1 Educational Series note there is a fasces leaning against the wall behind the youth. In the Oval Office, above the door leading to the exterior walkway, and above the corresponding door on the opposite wall, which leads to the president's private office;