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Aircraft | Flight characteristics | Flight characteristics |
Aircraft | Flight envelope | Flight envelope
The flight envelope of an aircraft refers to its approved design capabilities in terms of airspeed, load factor and altitude.https://web.archive.org/web/20100601204507/http://www.access.gpo.gov/ecfr/graphics/pdfs/ec28se91.001.pdf |
Aircraft | Range | Range
thumb|The Boeing 777-200LR is one of the longest-range airliners, capable of flights of more than halfway around the world.
The maximal total range is the maximum distance an aircraft can fly between takeoff and landing. Powered aircraft range is limited by the aviation fuel energy storage capacity (chemical or electrical) considering both weight and volume limits. Unpowered aircraft range depends on factors such as cross-country speed and environmental conditions. The range can be seen as the cross-country ground speed multiplied by the maximum time in the air. The fuel time limit for powered aircraft is fixed by the available fuel (considering reserve fuel requirements) and rate of consumption. The Airbus A350-900ULR is among the longest range airliners.
Some aircraft can gain energy while airborne through the environment (e.g. collecting solar energy or through rising air currents from mechanical or thermal lifting) or from in-flight refueling. These aircraft could theoretically have an infinite range.
Ferry range means the maximum range that an aircraft engaged in ferry flying can achieve. This usually means maximum fuel load, optionally with extra fuel tanks and minimum equipment. It refers to the transport of aircraft without any passengers or cargo. Combat radius is a related measure based on the maximum distance a warplane can travel from its base of operations, accomplish some objective, and return to its original airfield with minimal reserves. |
Aircraft | Flight dynamics | Flight dynamics
thumb|Flight dynamics
Flight dynamics is the science of air vehicle orientation and control in three dimensions. The three critical flight dynamics parameters are the angles of rotation in three dimensions about the vehicle's center of gravity (cg), known as pitch, roll and yaw. These are collectively known as aircraft attitude, often principally relative to the atmospheric frame in normal flight, but also relative to terrain during takeoff or landing, or when operating at low elevation. The concept of attitude is not specific to fixed-wing aircraft, but also extends to rotary aircraft such as helicopters, and dirigibles, where the flight dynamics involved in establishing and controlling attitude are entirely different.
Control systems adjust the orientation of a vehicle about its cg. A control system includes control surfaces which, when deflected, generate a moment (or couple from ailerons) about the cg which rotates the aircraft in pitch, roll, and yaw. For example, a pitching moment comes from a force applied at a distance forward or aft of the cg, causing the aircraft to pitch up or down.
A fixed-wing aircraft increases or decreases the lift generated by the wings when it pitches nose up or down by increasing or decreasing the angle of attack (AOA). The roll angle is also known as bank angle on a fixed-wing aircraft, which usually "banks" to change the horizontal direction of flight. An aircraft is streamlined from nose to tail to reduce drag making it advantageous to keep the sideslip angle near zero, though an aircraft may be deliberately "sideslipped" to increase drag and descent rate during landing, to keep aircraft heading same as runway heading during cross-wind landings and during flight with asymmetric power. |
Aircraft | Stability | Stability
thumb|The empennage of a Boeing 747-200A fixed wing is typically unstable in pitch, roll, and yaw. Pitch and yaw stabilities of conventional fixed wing designs require horizontal and vertical stabilisers,Crane, Dale: Dictionary of Aeronautical Terms, third edition, p. 194. Aviation Supplies & Academics, 1997. Aviation Publishers Co. Limited, From the Ground Up, p. 10 (27th revised edition) which act similarly to the feathers on an arrow. These stabilizing surfaces allow equilibrium of aerodynamic forces and to stabilise the flight dynamics of pitch and yaw. |
Aircraft | Control | Control |
Aircraft | Environmental impact | Environmental impact
Aircraft engines produce gases, noise, and particulates from fossil fuel combustion, raising environmental concerns over their global effects and on local air quality.
Jet airliners contribute to climate change by emitting carbon dioxide (), the best understood greenhouse gas, and, with less scientific understanding, nitrogen oxides, contrails and particulates. Their radiative forcing is estimated at 1.4 that of alone, excluding induced cirrus cloud with a very low level of scientific understanding.
In 2018, global commercial operations generated 2.4% of emissions. Jet airliners have become more fuel efficient and emissions per revenue ton-kilometer (RTK) in 2018 were 47% of those in 1990. In 2018, emissions averaged 88 grams of per revenue passenger per km. While the aviation industry is more fuel efficient, overall emissions have risen as the volume of air travel has increased. By 2020, aviation emissions were 70% higher than in 2005 and they could grow by 300% by 2050.
Aircraft noise pollution disrupts sleep, children's education and could increase cardiovascular risk. Airports can generate water pollution due to their extensive handling of jet fuel and deicing chemicals if not contained, contaminating nearby water bodies. Aviation activities emit ozone and ultrafine particles, both of which are health hazards. Piston engines used in general aviation burn Avgas, releasing toxic lead.
Aviation's environmental footprint can be reduced by better fuel economy in aircraft, or air traffic control and flight routes can be optimized to lower non- effects on climate from , particulates or contrails.
Aviation biofuel, emissions trading and carbon offsetting, part of the ICAO's CORSIA, can lower emissions. Aviation usage can be lowered by short-haul flight bans, train connections, personal choices and aviation taxation and subsidies. Fuel-powered aircraft may be replaced by hybrid electric aircraft and electric aircraft or by hydrogen-powered aircraft.
Since 2021, the IATA members plan net-zero carbon emissions by 2050, followed by the ICAO in 2022. |
Aircraft | Uses for aircraft | Uses for aircraft |
Aircraft | Military | Military
thumb|Boeing B-17E in flight
A military aircraft is any aircraft that is operated by a legal or insurrectionary armed service of any type. Military aircraft can be either combat or non-combat:
Combat aircraft are aircraft designed to destroy enemy equipment using its own armament. Combat aircraft are typically developed and procured only by military forces.
Non-combat aircraft, such as transports and tankers, are not designed for combat as their primary function but may carry weapons for self-defense. These mainly operate in support roles, and may be developed by either military forces or civilian organizations. |
Aircraft | Civil | Civil
thumb|Agusta A109 helicopter of the Swiss air rescue service
Civil aviation is one of two major categories of flying, representing all non-military and non-state aviation, which can be both private and commercial. Most countries in the world are members of the International Civil Aviation Organization and work together to establish common Standards and Recommended Practices for civil aviation through that agency.
Civil aviation includes three major categories:
Commercial air transport, including scheduled and non-scheduled passenger and cargo flights
Aerial work, in which an aircraft is used for specialized services such as agriculture, photography, surveying, search and rescue, etc.
General aviation (GA), including all other civil flights, private or commercial
Although scheduled air transport is the larger operation in terms of passenger numbers, GA is larger in the number of flights (and flight hours, in the U.S.) In the U.S., GA carries 166 million passengers each year, more than any individual airline, though less than all the airlines combined. Since 2004, the U.S. airlines combined have carried over 600 million passengers each year, and in 2014, they carried a combined 662,819,232 passengers.United States Department of Transportation. "Bureau of Transportation Statistics ". Retrieved 24 July 2015
Some countries also make a regulatory distinction based on whether aircraft are flown for hire, like:
Commercial aviation includes most or all flying done for hire, particularly scheduled service on airlines; and
Private aviation includes pilots flying for their own purposes (recreation, business meetings, etc.) without receiving any kind of remuneration.
thumb|A British Airways Boeing 747-400 departs London Heathrow International Airport. This is an example of a commercial aviation service.
All scheduled air transport is commercial, but general aviation can be either commercial or private. Normally, the pilot, aircraft, and operator must all be authorized to perform commercial operations through separate commercial licensing, registration, and operation certificates. |
Aircraft | Experimental | Experimental
thumb|A model aircraft, weighing six grams
An experimental aircraft is an aircraft intended for testing new aerospace technologies and design concepts.
The term research aircraft or testbed aircraft, by contrast, generally denotes aircraft modified to perform scientific studies, such as weather research or geophysical surveying, similar to a research vessel.
The term "experimental aircraft" also has specific legal meaning in Australia, the United States and some other countries; usually used to refer to aircraft flown with an experimental certificate.14CFR 21.175 , US Federal Aviation Administration. Retrieved 2018-01-12 In the United States, this also includes most homebuilt aircraft, many of which are based on conventional designs and hence are experimental only in name because of certain restrictions in operation.14CFR 21.191 , US Federal Aviation Administration. Retrieved 2018-01-12 |
Aircraft | Model | Model |
Aircraft | See also | See also |
Aircraft | Lists | Lists
Early flying machines
Flight altitude record
List of aircraft
List of civil aircraft
List of fighter aircraft
List of individual aircraft
List of large aircraft
List of aviation, aerospace and aeronautical terms |
Aircraft | Topics | Topics
Aircraft hijacking
Aircraft spotting
Air traffic control
Airport
Flying car
Personal air vehicle
Powered parachute
Spacecraft
Spaceplane |
Aircraft | References | References
|
Aircraft | External links | External links |
Aircraft | History | History
The Evolution of Modern Aircraft (NASA)
Virtual Museum
Smithsonian Air and Space Museum – online collection with a particular focus on history of aircraft and spacecraft
Amazing Early Flying Machines slideshow by Life magazine |
Aircraft | Information | Information
Airliners.net
Aviation Dictionary – free aviation terms, phrases and jargons
New Scientists aviation page
|
Aircraft | Table of Content | short description, History, Methods of lift, Lighter-than-air, Heavier-than-air{{Anchor, Fixed-wing Aircraft, Rotorcraft, Other methods of lift, Size and speed extremes, Size, Speeds, Propulsion and steering, Unpowered aircraft, Powered aircraft, Propeller aircraft, Jet aircraft, Rotorcraft, Design and construction, Structure, Aerostats, Aerodynes, Power, Avionics, Flight characteristics, Flight envelope, Range, Flight dynamics, Stability, Control, Environmental impact, Uses for aircraft, Military, Civil, Experimental, Model, See also, Lists, Topics, References, External links, History, Information |
Alfred Nobel | Short description | Alfred Bernhard Nobel ( ; ; 21 October 1833 – 10 December 1896) was a Swedish chemist, inventor, engineer and businessman. He is known for inventing dynamite, as well as having bequeathed his fortune to establish the Nobel Prizes. He also made several other important contributions to science, holding 355 patents during his life.
Born into the prominent Nobel family in Stockholm, Nobel displayed an early aptitude for science and learning, particularly in chemistry and languages; he became fluent in six languages and filed his first patent at the age of 24. He embarked on many business ventures with his family, most notably owning the company Bofors, which was an iron and steel producer that he had developed into a major manufacturer of cannons and other armaments. Nobel's most famous invention, dynamite, was an explosive made using nitroglycerin, which was patented in 1867. He further invented gelignite in 1875 and ballistite in 1887.
Upon his death, Nobel donated his fortune to a foundation to fund the Nobel Prizes, which annually recognize those who "conferred the greatest benefit to humankind". The synthetic element nobelium was named after him, and his name and legacy also survive in companies such as Dynamit Nobel and AkzoNobel, which descend from mergers with companies he founded. Nobel was elected a member of the Royal Swedish Academy of Sciences, which, pursuant to his will, would be responsible for choosing the Nobel laureates in physics and in chemistry. |
Alfred Nobel | Biography | Biography |
Alfred Nobel | Early life and education | Early life and education
thumb|The birthplace of Alfred Nobel at Norrlandsgatan in Stockholm
Alfred Nobel was born in Stockholm, Sweden, on 21 October 1833. He was the third son of Immanuel Nobel (1801–1872), an inventor and engineer, and Andriette Nobel (née Ahlsell 1805–1889). The couple married in 1827 and had eight children. The family was impoverished and only Alfred and his three brothers survived beyond their childhood. Through his father, Alfred Nobel was a descendant of the Swedish scientist Olaus Rudbeck (1630–1702). Nobel's father was an alumnus of Royal Institute of Technology in Stockholm and was an engineer and inventor who built bridges and buildings and experimented with different ways of blasting rocks. He encouraged and taught Nobel from a young age.
thumb|Alfred Nobel at a young age in the 1850s
Following various business failures caused by the loss of some barges of building material, Immanuel Nobel was forced into bankruptcy, Nobel's father moved to Saint Petersburg, then part of the Russian Empire, and grew successful there as a manufacturer of machine tools and explosives. He invented the veneer lathe, which made possible the production of modern plywood, and started work on the naval mine. In 1842, the family joined him in the city. Now prosperous, his parents were able to send Nobel to private tutors, and the boy excelled in his studies, particularly in chemistry and languages, achieving fluency in English, French, German, and Russian. For 18 months, from 1841 to 1842, Nobel attended the Jacobs Apologistic School in Stockholm, his only schooling; he never attended university.
Nobel gained proficiency in Swedish, French, Russian, English, German, and Italian. He also developed sufficient literary skill to write poetry in English. His Nemesis is a prose tragedy in four acts about the Italian noblewoman Beatrice Cenci. It was printed while he was dying, but the entire stock was destroyed immediately after his death except for three copies, being regarded as scandalous and blasphemous. It was published in Sweden in 2003 and has been translated into Slovenian, French, Italian, and Spanish. |
Alfred Nobel | Scientific career | Scientific career
thumb|Portrait of Nobel by Gösta Florman (1831–1900)
As a young man, Nobel studied with chemist Nikolai Zinin; then, in 1850, went to Paris to further the work. There he met Ascanio Sobrero, who had synthesized nitroglycerin three years before. Sobrero strongly opposed the use of nitroglycerin because it was unpredictable, exploding when subjected to variable heat or pressure. But Nobel became interested in finding a way to control and use nitroglycerin as a commercially usable explosive; it had much more power than gunpowder. In 1851 at age 18, he went to the United States for one year to study, working for a short period under Swedish-American inventor John Ericsson, who designed the American Civil War ironclad, USS Monitor. Nobel filed his first patent, an English patent for a gas meter, in 1857, while his first Swedish patent, which he received in 1863, was on "ways to prepare gunpowder". The family factory produced armaments for the Crimean War (1853–1856), but had difficulty switching back to regular domestic production when the fighting ended and they filed for bankruptcy. In 1859, Nobel's father left his factory in the care of the second son, Ludvig Nobel (1831–1888), who greatly improved the business. Nobel and his parents returned to Sweden from Russia and Nobel devoted himself to the study of explosives, and especially to the safe manufacture and use of nitroglycerin. Nobel invented a detonator in 1863, and in 1865 designed the blasting cap.
On 3 September 1864, a shed used for preparation of nitroglycerin exploded at the factory in Heleneborg, Stockholm, Sweden, killing five people, including Nobel's younger brother Emil. He was then deprived of his license to produce explosives. Fazed by the accident, Nobel founded the company Nitroglycerin AB in Vinterviken so that he could continue to work in a more isolated area. Nobel invented dynamite in 1867, a substance easier and safer to handle than the more unstable nitroglycerin. Dynamite was patented in the US and the UK and was used extensively in mining and the building of transport networks internationally. In 1875, Nobel invented gelignite, more stable and powerful than dynamite, and in 1887, patented ballistite, a predecessor of cordite.
Nobel was elected a member of the Royal Swedish Academy of Sciences in 1884, the same institution that would later select laureates for two of the Nobel prizes, and he received an honorary doctorate from Uppsala University in 1893. Nobel's brothers Ludvig and Robert founded the oil company Branobel and became hugely rich in their own right. Nobel invested in these and amassed great wealth through the development of these new oil regions. It operated mainly in Baku, Azerbaijan, but also in Cheleken, Turkmenistan. During his life, Nobel was issued 355 patents internationally, and by his death, his business had established more than 90 explosives and armament factories, despite his apparently pacifist character. |
Alfred Nobel | Inventions | Inventions
Nobel found that when nitroglycerin was incorporated in an absorbent inert substance like kieselguhr (diatomaceous earth) it became safer and more convenient to handle, and this mixture he patented in 1867 as "dynamite". Nobel demonstrated his explosive for the first time that year, at a quarry in Redhill, Surrey, England. In order to help reestablish his name and improve the image of his business from the earlier controversies associated with dangerous explosives, Nobel had also considered naming the highly powerful substance "Nobel's Safety Powder", which is the text used in his patent, but settled with Dynamite instead, referring to the Greek word for "power" ().
Nobel later combined nitroglycerin with various nitrocellulose compounds, similar to collodion, but settled on a more efficient recipe combining another nitrate explosive, and obtained a transparent, jelly-like substance, which was a more powerful explosive than dynamite. Gelignite, or blasting gelatin, as it was named, was patented in 1876; and was followed by a host of similar combinations, modified by the addition of potassium nitrate and various other substances. Gelignite was more stable, powerful, transportable and conveniently formed to fit into bored holes, like those used in drilling and mining, than the previously used compounds. It was adopted as the standard technology for mining in the "Age of Engineering", bringing Nobel a great amount of financial success, though at a cost to his health. An offshoot of this research resulted in Nobel's invention of ballistite, the precursor of many modern smokeless powder explosives and still used as a rocket propellant. |
Alfred Nobel | Nobel Prize | Nobel Prize
thumb|Front side of one of the Nobel Prize medals
There is a well known story about the origin of the Nobel Prize, although historians have been unable to verify it and some dismiss the story as a myth. In 1888, the death of his brother Ludvig supposedly caused several newspapers to publish obituaries of Alfred in error. One French newspaper condemned him for his invention of military explosives—in many versions of the story, dynamite is quoted, although this was mainly used for civilian applications—and this is said to have brought about his decision to leave a better legacy after his death. The obituary stated, ("The merchant of death is dead"), and went on to say, "Dr. Alfred Nobel, who became rich by finding ways to kill more people faster than ever before, died yesterday." Nobel read the obituary and was appalled at the idea that he would be remembered in this way. His decision to posthumously donate the majority of his wealth to found the Nobel Prize has been credited to him wanting to leave behind a better legacy. However, it has been questioned whether or not the obituary in question actually existed.
On 27 November 1895, at the Swedish-Norwegian Club in Paris, Nobel signed his last will and testament and set aside the bulk of his estate to establish the Nobel Prizes, to be awarded annually without distinction of nationality. After taxes and bequests to individuals, Nobel's will allocated 94% of his total assets, 31,225,000 Swedish kronor, to establish the five Nobel Prizes. By 2022, the foundation had approximately 6 billion Swedish Kronor of invested capital.
The first three of these prizes are awarded for eminence in physical science, in chemistry and in medical science or physiology; the fourth is for literary work "in an ideal direction" and the fifth prize is to be given to the person or society that renders the greatest service to the cause of international fraternity, in the suppression or reduction of standing armies, or in the establishment or furtherance of peace congresses.
The formulation for the literary prize being given for a work "in an ideal direction" ( in Swedish), is cryptic and has caused much confusion. For many years, the Swedish Academy interpreted "ideal" as "idealistic" () and used it as a reason not to give the prize to important but less romantic authors, such as Henrik Ibsen and Leo Tolstoy. This interpretation has since been revised, and the prize has been awarded to, for example, Dario Fo and José Saramago, who do not belong to the camp of literary idealism.
There was room for interpretation by the bodies he had named for deciding on the physical sciences and chemistry prizes, given that he had not consulted them before making the will. In his one-page testament, he stipulated that the money go to discoveries or inventions in the physical sciences and to discoveries or improvements in chemistry. He had opened the door to technological awards, but had not left instructions on how to deal with the distinction between science and technology. Since the deciding bodies he had chosen were more concerned with the former, the prizes went to scientists more often than engineers, technicians or other inventors.
Sweden's central bank Sveriges Riksbank celebrated its 300th anniversary in 1968 by donating a large sum of money to the Nobel Foundation to be used to set up a sixth prize in the field of economics in honor of Alfred Nobel. In 2001, Alfred Nobel's great-great-nephew, Peter Nobel (born 1931), asked the Bank of Sweden to differentiate its award to economists given "in Alfred Nobel's memory" from the five other awards. This request added to the controversy over whether the Bank of Sweden Prize in Economic Sciences in Memory of Alfred Nobel is actually a legitimate "Nobel Prize". |
Alfred Nobel | Health issues and death | Health issues and death
thumb|Alfred Nobel's death mask, at Björkborn Manor, Nobel's residence in Karlskoga, Sweden
In his letters to his mistress, Hess, Nobel described constant pain, debilitating migraines, and "paralyzing" fatigue, leading some to believe that he suffered from fibromyalgia. However, his concerns at the time were dismissed as hypochondria, leading to further depression.
By 1895, Nobel had developed angina pectoris.
On 27 November 1895, he finalized his will and testament, leaving most of his wealth in trust, unbeknownst to his family, to fund the Nobel Prize awards.
On 10 December 1896, he suffered a stroke/intracerebral hemorrhage and was first partially paralyzed and then died, aged 63. He is buried in Norra begravningsplatsen in Stockholm.
Based on his experimentation with explosives, his strenuous work habit, and the decline in his health at the end of the 1870s, some hypothesize that nitroglycerine poisoning was a contributing factor to his death. |
Alfred Nobel | Personal life | Personal life |
Alfred Nobel | Religion | Religion
Nobel was Lutheran and, during his years living in Paris, he regularly attended the Church of Sweden Abroad led by pastor Nathan Söderblom who received the Nobel Peace Prize in 1930. He was an agnostic in youth and became an atheist later in life, though he still donated generously to the Church. |
Alfred Nobel | Romantic relationships and personality | Romantic relationships and personality
Nobel remained a solitary character, given to periods of depression. He never married, although his biographers note that he had at least three loves. His first love was in Russia with a girl named Alexandra who rejected his marriage proposal.
In 1876, Austro-Bohemian Countess Bertha von Suttner became his secretary, but she left him after a brief stay to marry her previous lover Baron Arthur Gundaccar von Suttner. Her contact with Nobel was brief, yet she corresponded with him until his death in 1896, and probably influenced his decision to include the Nobel Peace Prize in his will. She was awarded the 1905 Nobel Peace prize "for her sincere peace activities".
Nobel's longest-lasting romance was an 18-year relationship with Sofija Hess from Celje whom he met in 1876 in Baden bei Wien, where she worked as an employee in a flower shop that catered to wealthy clientele. The extent of their relationship was revealed by a collection of 221 letters sent by Nobel to Hess over 15 years. At the time that they met, Nobel was 43 years old while Hess was 26. Their relationship, which was not merely platonic, ended when she became pregnant from another man, although Nobel continued to support her financially until Hess married her child's father to avoid being ostracized as a whore. Hess was a Jewish Christian and the letters include remarks by Nobel characterized as antisemitism. Nobel also displayed characteristics of chauvinism in the letters writing to Hess: "You neither work, nor write, nor read, nor think" and guilted her, writing "I have for years now sacrificed out of purely noble motives my time, my duties, my intellectual life, my reputation". |
Alfred Nobel | Residences | Residences
thumb|Björkborn Manor, in Karlskoga, was Alfred Nobel's last residence in Sweden.|left
Nobel traveled for much of his business life, maintaining companies in Europe and America. From 1865 to 1873, Nobel lived in Krümmel (now in the municipality of Geesthacht, near Hamburg). From 1873 to 1891, he lived in a house in the Avenue Malakoff in Paris.
In 1891, after being accused of high treason against France for selling Ballistite to Italy, he moved from Paris to Sanremo, Italy, acquiring Villa Nobel, overlooking the Mediterranean Sea, where he died in 1896.
In 1894, when he acquired Bofors-Gullspång, the Björkborn Manor was included, where he stayed during the summers. It is now a museum. |
Alfred Nobel | Monument to Alfred Nobel | Monument to Alfred Nobel
The Monument to Alfred Nobel (, ) is in Saint Petersburg along the Bolshaya Nevka River on Petrogradskaya Embankment, the street where Nobel's family lived until 1859. It was dedicated in 1991 to mark the 90th anniversary of the first Nobel Prize presentation. Diplomat Thomas Bertelman and Professor Arkady Melua were initiators of the creation of the monument in 1989 and they provided funds for the establishment of the monument. The abstract metal sculpture was designed by local artists Sergey Alipov and Pavel Shevchenko, and appears to be an explosion or branches of a tree. |
Alfred Nobel | Criticism | Criticism
Criticism of Nobel focuses on his leading role in weapons manufacturing and sales. Some people question his motives in creating his prizes, suggesting they are intended to improve his reputation. |
Alfred Nobel | Antisemitism | Antisemitism
Nobel has also been criticized for displays of antisemitism. In his letters to Hess, he wrote "In my experience, [Jews] never do anything out of good will. They act merely out of selfishness or a desire to show off .... among selfish and inconsiderate people they are the most selfish and inconsiderate... all others exist to be fleeced." |
Alfred Nobel | References | References |
Alfred Nobel | Further reading | Further reading
Asbrink, Brita (Summer 2002). "The Nobels in Baku" in Azerbaijan International, Vol 10.2, 56–59.
Evlanoff, M. and Fluor, M. Alfred Nobel – The Loneliest Millionaire. Los Angeles, Ward Ritchie Press, 1969.
Schück, H, and Sohlman, R., (1929). The Life of Alfred Nobel, transl. Brian Lunn, London: William Heineman Ltd.
Sohlman, R. The Legacy of Alfred Nobel, transl. Schubert E. London: The Bodley Head, 1983 (Swedish original, Ett Testamente, published in 1950).
Alfred Nobel US Patent No 78,317, dated 26 May 1868 |
Alfred Nobel | External links | External links
The Man Behind the Prize – Alfred Nobel
Biography at the Norwegian Nobel Institute
Documents of Life and Activity of The Nobel Family. Under the editorship of Professor Arkady Melua. Series of books. (mostly in Russian)
Alfred Nobel and his unknown coworker
Category:1833 births
Category:1896 deaths
Category:19th-century Swedish businesspeople
Category:19th-century Swedish chemists
Category:19th-century Swedish engineers
Category:19th-century Swedish philanthropists
Category:19th-century Swedish scientists
Category:Bofors people
Category:Burials at Norra begravningsplatsen
Category:Engineers from Stockholm
Category:Explosives engineers
Category:Members of the Royal Swedish Academy of Sciences
Alfred
Category:Nobel Prize |
Alfred Nobel | Table of Content | Short description, Biography, Early life and education, Scientific career, Inventions, Nobel Prize, Health issues and death, Personal life, Religion, Romantic relationships and personality, Residences, Monument to Alfred Nobel, Criticism, Antisemitism, References, Further reading, External links |
Alexander Graham Bell | Short description | Alexander Graham Bell (; born Alexander Bell; March 3, 1847 – August 2, 1922) was a Scottish-born Canadian-American inventor, scientist, and engineer who is credited with patenting the first practical telephone. He also co-founded the American Telephone and Telegraph Company (AT&T) in 1885.
Bell's father, grandfather, and brother had all been associated with work on elocution and speech, and both his mother and wife were deaf, profoundly influencing Bell's life's work. His research on hearing and speech further led him to experiment with hearing devices, which eventually culminated in his being awarded the first U.S. patent for the telephone, on March 7, 1876. Bell considered his invention an intrusion on his real work as a scientist and refused to have a telephone in his study.
Many other inventions marked Bell's later life, including ground-breaking work in optical telecommunications, hydrofoils, and aeronautics. Bell also had a strong influence on the National Geographic Society and its magazine while serving as its second president from 1898 to 1903.
Beyond his work in engineering, Bell had a deep interest in the emerging science of heredity. His work in this area has been called "the soundest, and most useful study of human heredity proposed in nineteenth-century America... Bell's most notable contribution to basic science, as distinct from invention." |
Alexander Graham Bell | Early life | Early life
Bell was born in Edinburgh, Scotland, on March 3, 1847, to Alexander Melville Bell, a phonetician, and Eliza Grace Bell (née Symonds). The family home was on South Charlotte Street in Edinburgh, where a stone inscription marks it as Bell's birthplace. He had two brothers: Melville James Bell (1845–1870) and Edward Charles Bell (1848–1867), both who died of tuberculosis."Time Line of Alexander Graham Bell." memory.loc.goiv. Retrieved: July 28, 2010. He was born as just "Alexander Bell". At age 10, however, he made a plea to his father to have a middle name like his two brothers. For his 11th birthday, his father acquiesced and allowed him to adopt the name "Graham", chosen out of respect for Alexander Graham, a Canadian being treated by his father who was also a family friend. To close relatives and friends he remained "Aleck". Bell and his siblings attended a Presbyterian Church in their youth. |
Alexander Graham Bell | First invention | First invention
As a child, Bell displayed a curiosity about his world; he gathered botanical specimens and ran experiments at an early age. His best friend was Ben Herdman, a neighbour whose family operated a flour mill. At the age of 12, Bell built a homemade device that combined rotating paddles with sets of nail brushes, creating a simple dehusking machine that was put into operation at the mill and used steadily for a number of years. In return, Ben's father John Herdman gave both boys the run of a small workshop in which to "invent".
From his early years, Bell showed a sensitive nature and a talent for art, poetry, and music that his mother encouraged. With no formal training, he mastered the piano and became the family's pianist. Though normally quiet and introspective, he revelled in mimicry and "voice tricks" akin to ventriloquism that entertained family guests. Bell was also deeply affected by his mother's gradual deafness (she began to lose her hearing when he was 12), and learned a manual finger language so he could sit at her side and tap out silently the conversations swirling around the family parlour. He also developed a technique of speaking in clear, modulated tones directly into his mother's forehead, whereby she would hear him with reasonable clarity. Bell's preoccupation with his mother's deafness led him to study acoustics.
His family was long associated with the teaching of elocution: his grandfather, Alexander Bell, in London, his uncle in Dublin, and his father, in Edinburgh, were all elocutionists. His father published a variety of works on the subject, several of which are still well known, especially The Standard Elocutionist (1860), which appeared in Edinburgh in 1868. The Standard Elocutionist appeared in 168 British editions and sold over 250,000 copies in the United States alone. It explains methods to instruct deaf-mutes (as they were then known) to articulate words and read other people's lip movements to decipher meaning. Bell's father taught him and his brothers not only to write Visible Speech but to identify any symbol and its accompanying sound. Bell became so proficient that he became a part of his father's public demonstrations and astounded audiences with his abilities. He could decipher Visible Speech representing virtually every language, including Latin, Scottish Gaelic, and even Sanskrit, accurately reciting written tracts without any prior knowledge of their pronunciation. |
Alexander Graham Bell | Education | Education
As a young child, Bell, like his brothers, was schooled at home by his father. At an early age, he was enrolled at the Royal High School in Edinburgh. But he left at age 15, having completed only the first four forms. His school record was undistinguished, marked by absenteeism and lacklustre grades. His main interest remained in the sciences, especially biology, while he treated other school subjects with indifference, to his father's dismay. Upon leaving school, Bell travelled to London to live with his grandfather, Alexander Bell, on Harrington Square. During the year he spent with his grandfather, a love of learning was born, with long hours spent in serious discussion and study. The elder Bell took great efforts to have his young pupil learn to speak clearly and with conviction, attributes he would need to become a teacher himself. At age 16, Bell secured a position as a "pupil-teacher" of elocution and music at Weston House Academy in Elgin, Moray, Scotland. Although enrolled as a student in Latin and Greek, he instructed classes himself in return for board and £10 per session. The next year, he attended the University of Edinburgh, joining his brother Melville, who had enrolled there the previous year. In 1868, Bell completed his matriculation exams and was accepted for admission to University College London, though he did not complete his studies, as his family emigrated to Canada in 1870 following the deaths of his brothers Edward and Melville from tuberculosis. |
Alexander Graham Bell | First experiments with sound | First experiments with sound
Bell's father encouraged his interest in speech and, in 1863, took his sons to see a unique automaton developed by Sir Charles Wheatstone based on the earlier work of Baron Wolfgang von Kempelen. The rudimentary "mechanical man" simulated a human voice. Bell was fascinated by the machine, and after he obtained a copy of von Kempelen's book, published in German, and had laboriously translated it, he and Melville built their own automaton head. Their father, highly interested in their project, offered to pay for any supplies and spurred the boys on with the enticement of a "big prize" if they were successful. While his brother constructed the throat and larynx, Bell tackled the more difficult task of recreating a realistic skull. His efforts resulted in a remarkably lifelike head that could "speak", albeit only a few words. The boys would carefully adjust the "lips" and when a bellows forced air through the windpipe, a very recognizable Mama ensued, to the delight of neighbours who came to see the invention.
Intrigued by the results of the automaton, Bell continued to experiment with a live subject, the family's Skye Terrier, Trouve. After he taught it to growl continuously, Bell would reach into its mouth and manipulate the dog's lips and vocal cords to produce a crude-sounding "Ow ah oo ga ma ma". With little convincing, visitors believed his dog could articulate "How are you, grandmama?" Indicative of his playful nature, his experiments convinced onlookers that they saw a "talking dog". These initial forays into experimentation with sound led Bell to undertake his first serious work on the transmission of sound, using tuning forks to explore resonance.
At age 19, Bell wrote a report on his work and sent it to philologist Alexander Ellis, a colleague of his father. Ellis immediately wrote back indicating that the experiments were similar to existing work in Germany, and also lent Bell a copy of Hermann von Helmholtz's work, The Sensations of Tone as a Physiological Basis for the Theory of Music.
Dismayed to find that groundbreaking work had already been undertaken by Helmholtz, who had conveyed vowel sounds by means of a similar tuning fork "contraption", Bell pored over the book. Working from his own erroneous mistranslation of a French edition, Bell fortuitously then made a deduction that would underpin all his future work on transmitting sound, reporting: "Without knowing much about the subject, it seemed to me that if vowel sounds could be produced by electrical means, so could consonants, so could articulate speech." He also later remarked: "I thought that Helmholtz had done it ... and that my failure was due only to my ignorance of electricity. It was a valuable blunder ... If I had been able to read German in those days, I might never have commenced my experiments!" |
Alexander Graham Bell | Family tragedy | Family tragedy
In 1865, when the Bell family moved to London, Bell returned to Weston House as an assistant master and, in his spare hours, continued experiments on sound using a minimum of laboratory equipment. Bell concentrated on experimenting with electricity to convey sound and later installed a telegraph wire from his room in Somerset College to that of a friend. Throughout late 1867, his health faltered mainly through exhaustion. His brother Edward was similarly affected by tuberculosis. While Bell recovered (by then referring to himself in correspondence as "A. G. Bell") and served the next year as an instructor at Somerset College, Bath, England, his brother's condition deteriorated. Edward never recovered. Upon his brother's death, Bell returned home in 1867. Melville had married and moved out. With aspirations to obtain a degree at University College London, Bell considered his next years preparation for the degree examinations, devoting his spare time to studying.
Helping his father in Visible Speech demonstrations and lectures brought Bell to Susanna E. Hull's private school for the deaf in South Kensington, London. His first two pupils were deaf-mute girls who made remarkable progress under his tutelage. While Melville seemed to achieve success on many fronts, including opening his own elocution school, applying for a patent on an invention, and starting a family, Bell continued as a teacher. In May 1870, Melville died from complications of tuberculosis, causing a family crisis. His father had also experienced a debilitating illness earlier in life and been restored to health by convalescence in Newfoundland. Bell's parents embarked upon a long-planned move when they realized that their remaining son was also sickly. Acting decisively, Alexander Melville Bell asked Bell to arrange for the sale of all the family property, conclude all his brother's affairs (Bell took on his last student, curing a pronounced lisp), and join his father and mother in setting out for Canada. Reluctantly, Bell also had to conclude a relationship with Marie Eccleston, who, as he had surmised, was not prepared to leave England with him. |
Alexander Graham Bell | Canada | Canada
thumb|Melville House, the Bells' first home in North America, now a National Historic Site of Canada
In 1870, 23-year-old Bell travelled with his parents and his brother's widow, Caroline Margaret Ottaway, to Paris, Ontario, to stay with Thomas Henderson, a Baptist minister and family friend. The Bells soon purchased a farm of at Tutelo Heights (now called Tutela Heights), near Brantford, Ontario. The property consisted of an orchard, large farmhouse, stable, pigsty, hen-house, and a carriage house, which bordered the Grand River.
At the homestead, Bell set up a workshop in the converted carriage house near what he called his "dreaming place", a large hollow nestled in trees at the back of the property above the river. Despite his frail condition upon arriving in Canada, Bell found the climate and environs to his liking and rapidly improved. He continued his interest in the study of the human voice, and when he discovered the Six Nations Reserve across the river at Onondaga, learned the Mohawk language and translated its unwritten vocabulary into Visible Speech symbols. For his work, Bell was awarded the title of Honorary Chief and participated in a ceremony where he donned a Mohawk headdress and danced traditional dances.
After setting up his workshop, Bell continued experiments based on Helmholtz's work with electricity and sound. He also modified a melodeon (a type of pump organ) to transmit its music electrically over a distance. Once the family was settled, Bell and his father made plans to establish a teaching practice and in 1871, he accompanied his father to Montreal, where Melville was offered a position to teach his System of Visible Speech. |
Alexander Graham Bell | Work with deaf people | Work with deaf people
thumb|Bell, top right, providing pedagogical instruction to teachers at the Boston School for Deaf Mutes, 1871; throughout his life, he referred to himself as "a teacher of the deaf"
Bell's father was invited by Sarah Fuller, principal of the Boston School for Deaf Mutes (later to become the public Horace Mann School for the Deaf) to introduce the Visible Speech System by providing training for Fuller's instructors, but he declined the post in favour of his son. Travelling to Boston in April 1871, Bell proved successful in training the school's instructors. He was asked to repeat the programme at the American Asylum for Deaf-mutes in Hartford, Connecticut, and the Clarke School for the Deaf in Northampton, Massachusetts.
Returning home to Brantford after six months abroad, Bell continued his experiments with his "harmonic telegraph". The basic concept behind his device was that messages could be sent through a single wire if each was transmitted at a different pitch, but work on both the transmitter and receiver was needed.
Unsure of his future, he contemplated returning to London to complete his studies, but decided to return to Boston as a teacher. His father helped him set up his private practice by contacting Gardiner Greene Hubbard, the president of the Clarke School for the Deaf for a recommendation. Teaching his father's system, in October 1872, Alexander Bell opened his "School of Vocal Physiology and Mechanics of Speech" in Boston, which attracted a large number of deaf pupils, with his first class numbering 30 students. While he was working as a private tutor, one of his pupils was Helen Keller, who came to him as a young child unable to see, hear, or speak. She later said that Bell dedicated his life to the penetration of that "inhuman silence which separates and estranges". In 1893, Keller performed the sod-breaking ceremony for the construction of Bell's new Volta Bureau, dedicated to "the increase and diffusion of knowledge relating to the deaf".
Throughout his life, Bell sought to assimilate the deaf and hard of hearing with the hearing world. He encouraged speech therapy and lip-reading over sign language. He outlined this in an 1898 paper detailing his belief that, with resources and effort, the deaf could be taught to read lips and speak (known as oralism), enabling their integration with wider society. Members of the Deaf community have criticized Bell for supporting ideas that could cause the closure of dozens of deaf schools, and what some consider eugenicist ideas. Bell did not support a ban on deaf people marrying each other, an idea articulated by the National Association of the Deaf (United States), but in his memoir Memoir upon the Formation of a Deaf Variety of the Human Race, he observed that if deaf people tended to marry other deaf people, this could result in the emergence of a "deaf race". Ultimately, in 1880, the Second International Congress on Education of the Deaf passed a resolution mandating the teaching of oral communication and banning signing in schools. |
Alexander Graham Bell | Continuing experimentation | Continuing experimentation
In 1872, Bell became professor of Vocal Physiology and Elocution at the Boston University School of Oratory. During this period, he alternated between Boston and Brantford, spending summers in his Canadian home. At Boston University, Bell was "swept up" by the excitement engendered by the many scientists and inventors living in the city. He continued his research in sound and endeavoured to find a way to transmit musical notes and articulate speech, but although absorbed by his experiments, he found it difficult to devote enough time to experimentation. With days and evenings occupied by his teaching and private classes, Bell began to stay awake late into the night, running experiment after experiment in rented facilities at his boarding house. Keeping "night owl" hours, he worried that his work would be discovered and took great pains to lock up his notebooks and laboratory equipment. Bell had a specially made table where he could place his notes and equipment inside a locking cover. His health deteriorated as he had severe headaches. Returning to Boston in autumn 1873, Bell made a far-reaching decision to concentrate on his experiments in sound.
Giving up his lucrative private Boston practice, Bell retained only two students, six-year-old "Georgie" Sanders, deaf from birth, and 15-year-old Mabel Hubbard. Each played an important role in the next developments. Georgie's father, Thomas Sanders, a wealthy businessman, offered Bell a place to stay in nearby Salem with Georgie's grandmother, complete with a room to "experiment". Although the offer was made by Georgie's mother and followed the year-long arrangement in 1872 where her son and his nurse had moved to quarters next to Bell's boarding house, it was clear that Mr. Sanders backed the proposal. The arrangement was for teacher and student to continue their work together, with free room and board thrown in. Mabel was a bright, attractive girl ten years Bell's junior who became the object of his affection. Having lost her hearing after a near-fatal bout of scarlet fever close to her fifth birthday, she had learned to read lips but her father, Gardiner Greene Hubbard, Bell's benefactor and personal friend, wanted her to work directly with her teacher. |
Alexander Graham Bell | The telephone | The telephone
By 1874, Bell's initial work on the harmonic telegraph had entered a formative stage, with progress made both at his new Boston "laboratory" (a rented facility) and at his family home in Canada a big success. While working that summer in Brantford, Bell experimented with a "phonautograph", a pen-like machine that could draw shapes of sound waves on smoked glass by tracing their vibrations. Bell thought it might be possible to generate undulating electrical currents that corresponded to sound waves. He also thought that multiple metal reeds tuned to different frequencies like a harp would be able to convert the undulating currents back into sound. But he had no working model to demonstrate the feasibility of these ideas.
In 1874, telegraph message traffic was rapidly expanding and, in the words of Western Union President William Orton, had become "the nervous system of commerce". Orton had contracted with inventors Thomas Edison and Elisha Gray to find a way to send multiple telegraph messages on each telegraph line to avoid the great cost of constructing new lines. When Bell mentioned to Gardiner Hubbard and Thomas Sanders that he was working on a method of sending multiple tones on a telegraph wire using a multi-reed device, the two began to financially support Bell's experiments. Patent matters were handled by Hubbard's patent attorney, Anthony Pollok.
In March 1875, Bell and Pollok visited the scientist Joseph Henry, then the director of the Smithsonian Institution, to ask his advice on the electrical multi-reed apparatus that Bell hoped would transmit the human voice by telegraph. Henry said Bell had "the germ of a great invention". When Bell said that he lacked the necessary knowledge, Henry replied, "Get it!" That declaration greatly encouraged Bell to keep trying, even though he had neither the equipment needed to continue his experiments nor the ability to create a working model of his ideas. But a chance meeting in 1874 between Bell and Thomas A. Watson, an experienced electrical designer and mechanic at the electrical machine shop of Charles Williams, changed that.
With financial support from Sanders and Hubbard, Bell hired Watson as his assistant, and the two experimented with acoustic telegraphy. On June 2, 1875, Watson accidentally plucked one of the reeds and Bell, at the receiving end of the wire, heard the reed's overtones that would be necessary for transmitting speech. That demonstrated to Bell that only one reed or armature was necessary, not multiple reeds. This led to the "gallows" sound-powered telephone, which could transmit indistinct, voice-like sounds, but not clear speech. |
Alexander Graham Bell | The race to the patent office | The race to the patent office
In 1875, Bell developed an acoustic telegraph and drew up a patent application for it. Since he had agreed to share U.S. profits with his investors Gardiner Hubbard and Thomas Sanders, Bell requested that an associate in Ontario, George Brown, attempt to patent it in Britain, instructing his lawyers to apply for a patent in the U.S. only after they received word from Britain (Britain issued patents only for discoveries not previously patented elsewhere).
thumb|Alexander Graham Bell's telephone patent drawing, March 7, 1876
Meanwhile, Elisha Gray was also experimenting with acoustic telegraphy and thought of a way to transmit speech using a water transmitter. On February 14, 1876, Gray filed a caveat with the U.S. Patent Office for a telephone design that used a water transmitter. That same morning, Bell's lawyer filed Bell's application with the patent office. There is considerable debate about who arrived first and Gray later challenged the primacy of Bell's patent. Bell was in Boston on February 14 and did not arrive in Washington until February 26.
On March 7, 1876, the U.S. Patent Office issued Bell patent 174,465. It covered "the method of, and apparatus for, transmitting vocal or other sounds telegraphically ... by causing electrical undulations, similar in form to the vibrations of the air accompanying the said vocal or other sound" Bell returned to Boston that day and the next day resumed work, drawing in his notebook a diagram similar to that in Gray's patent caveat.
On March 10, Bell succeeded in getting his telephone to work, using a liquid transmitter similar to Gray's design. Vibration of the diaphragm caused a needle to vibrate in the water, varying the electrical resistance in the circuit. When Bell spoke the sentence "Mr. Watson—Come here—I want to see you" into the liquid transmitter, Watson, listening at the receiving end in an adjoining room, heard the words clearly.
Although Bell was, and still is, accused of stealing the telephone from Gray, Bell used Gray's water transmitter design only after Bell's patent had been granted, and only as a proof of concept scientific experiment, to prove to his own satisfaction that intelligible "articulate speech" (Bell's words) could be electrically transmitted. After March 1876, Bell focused on improving the electromagnetic telephone and never used Gray's liquid transmitter in public demonstrations or commercial use.
The examiner raised the question of priority for the variable resistance feature of the telephone before approving Bell's patent application. He told Bell that his claim for the variable resistance feature was also described in Gray's caveat. Bell pointed to a variable resistance device in his previous application in which he described a cup of mercury, not water. He had filed the mercury application at the patent office on February 25, 1875, long before Gray described the water device. In addition, Gray abandoned his caveat, and because he did not contest Bell's priority, the examiner approved Bell's patent on March 3, 1876. Gray had reinvented the variable resistance telephone, but Bell was the first to write down the idea and test it in a telephone.
The patent examiner, Zenas Fisk Wilber, later stated in an affidavit that he was an alcoholic who was much in debt to Bell's lawyer, Marcellus Bailey, with whom he had served in the Civil War. He said he had shown Bailey Gray's patent caveat. Wilber also said (after Bell arrived in Washington D.C. from Boston) that he showed Bell Gray's caveat and that Bell paid him $100 (). Bell said they discussed the patent only in general terms, although in a letter to Gray, Bell admitted that he learned some of the technical details. Bell denied in an affidavit that he ever gave Wilber any money. |
Alexander Graham Bell | Later developments | Later developments
thumb|An actor playing Bell in a 1926 film holds Bell's first telephone transmitter
On March 10, 1876, Bell used "the instrument" in Boston to call Thomas Watson who was in another room but out of earshot. He said, "Mr. Watson, come here – I want to see you" and Watson soon appeared at his side.
Continuing his experiments in Brantford, Bell brought home a working model of his telephone. On August 3, 1876, from the telegraph office in Brantford, Bell sent a telegram to the village of Mount Pleasant away, indicating that he was ready. He made a telephone call via telegraph wires and faint voices were heard replying. The following night, he amazed guests as well as his family with a call between the Bell Homestead and the office of the Dominion Telegraph Company in Brantford along an improvised wire strung up along telegraph lines and fences, and laid through a tunnel. This time, guests at the household distinctly heard people in Brantford reading and singing. The third test, on August 10, 1876, was made via the telegraph line between Brantford and Paris, Ontario, away. This test is said by many sources to be the "world's first long-distance call". It proved that the telephone could work over long distances, at least as a one-way call.
The first two-way (reciprocal) conversation over a line occurred between Cambridge and Boston (roughly 2.5 miles) on October 9, 1876. During that conversation, Bell was on Kilby Street in Boston and Watson was at the offices of the Walworth Manufacturing Company.
thumb|Bell at the opening of the long-distance line from New York to Chicago in 1892
Bell and his partners, Hubbard and Sanders, offered to sell the patent outright to Western Union for $100,000, equal to $ today, but it did not work (according to an apocryphal story, the president of Western Union balked, countering that the telephone was nothing but a toy). Two years later, he told colleagues that if he could get the patent for $25 million (equal to $ today), he would consider it a bargain. By then, the Bell company no longer wanted to sell the patent. Bell's investors became millionaires while he fared well from residuals and at one point had assets of nearly $1 million.
Bell began a series of public demonstrations and lectures to introduce the new invention to the scientific community as well as the general public. A short time later, his demonstration of an early telephone prototype at the 1876 Centennial Exposition in Philadelphia brought the telephone to international attention. Influential visitors to the exhibition included Emperor Pedro II of Brazil. One of the judges at the Exhibition, Sir William Thomson (later Lord Kelvin), a renowned Scottish scientist, described the telephone as "the greatest by far of all the marvels of the electric telegraph".
On January 14, 1878, at Osborne House, on the Isle of Wight, Bell demonstrated the device to Queen Victoria, placing calls to Cowes, Southampton, and London. These were the first publicly witnessed long-distance telephone calls in the UK. The queen found the process "quite extraordinary" although the sound was "rather faint". She later asked to buy the equipment that was used, but Bell offered to make "a set of telephones" specifically for her.
The Bell Telephone Company was created in 1877, and by 1886, more than 150,000 people in the U.S. owned telephones. Bell Company engineers made numerous other improvements to the telephone, which emerged as one of the most successful products ever. In 1879, the company acquired Edison's patents for the carbon microphone from Western Union. This made the telephone practical for longer distances, and it was no longer necessary to shout to be heard at the receiving telephone.
Pedro II of Brazil was the first person to buy stock in the Bell Telephone Company. One of the first telephones in a private residence was installed in his palace in Petrópolis, his summer retreat from Rio de Janeiro.
In January 1915, Bell made the first ceremonial transcontinental telephone call. Calling from the AT&T head office at 15 Dey Street in New York City, Bell was heard by Thomas Watson at 333 Grant Avenue in San Francisco. The New York Times reported: |
Alexander Graham Bell | Competitors | Competitors
As is sometimes common in scientific discoveries, simultaneous developments occurred, as evidenced by a number of inventors who were at work on the telephone. Over 18 years, the Bell Telephone Company faced 587 court challenges to its patents, including five that went to the U.S. Supreme Court, but none was successful in establishing priority over Bell's original patent, and the Bell Telephone Company never lost a case that had proceeded to a final trial stage. Bell's laboratory notes and family letters were the key to establishing a long lineage to his experiments. The Bell company lawyers successfully fought off myriad lawsuits generated initially around the challenges by Elisha Gray and Amos Dolbear. In personal correspondence to Bell, both Gray and Dolbear had acknowledged his prior work, which considerably weakened their later claims.
On January 13, 1887, the U.S. government moved to annul the patent issued to Bell on the grounds of fraud and misrepresentation. After a series of decisions and reversals, the Bell company won a decision in the Supreme Court, though a couple of the original claims from the lower court cases were left undecided. By the time the trial had wound its way through nine years of legal battles, the U.S. prosecuting attorney had died and the two Bell patents (No. 174,465, dated March 7, 1876, and No. 186,787, dated January 30, 1877) were no longer in effect, although the presiding judges agreed to continue the proceedings due to the case's importance as a precedent. With a change in administration and charges of conflict of interest (on both sides) arising from the original trial, the U.S. attorney general dropped the lawsuit on November 30, 1897, leaving several issues undecided on the merits.
During a deposition filed for the 1887 trial, Italian inventor Antonio Meucci also claimed to have created the first working model of a telephone in Italy in 1834. In 1886, in the first of three cases in which he was involved, Meucci took the stand as a witness in hope of establishing his invention's priority. Meucci's testimony was disputed due to lack of material evidence for his inventions, as his working models were purportedly lost at the laboratory of American District Telegraph (ADT) of New York, which was incorporated as a subsidiary of Western Union in 1901. Meucci's work, like that of many other inventors of the period, was based on earlier acoustic principles and, despite evidence of earlier experiments, the final case involving Meucci was eventually dropped upon Meucci's death. But due to the efforts of Congressman Vito Fossella, on June 11, 2002, the U.S. House of Representatives stated that Meucci's "work in the invention of the telephone should be acknowledged"."H.RES.269: Resolution 269." thomas.loc.gov. Retrieved: July 28, 2010. This did not put an end to the still contentious issue. Some modern scholars do not agree that Bell's work on the telephone was influenced by Meucci's inventions.
The value of Bell's patent was acknowledged throughout the world, and patent applications were made in most major countries. When Bell delayed the German patent application, the electrical firm Siemens & Halske set up a rival manufacturer of Bell telephones under its own patent. Siemens produced near-identical copies of the Bell telephone without having to pay royalties. The establishment of the International Bell Telephone Company in Brussels, Belgium, in 1880, as well as a series of agreements in other countries eventually consolidated a global telephone operation. The strain put on Bell by his constant appearances in court, necessitated by the legal battles, eventually resulted in his resignation from the company. |
Alexander Graham Bell | Family life | Family life
thumb|alt=A distinguished bearded man, his young elegant wife next to him and their two young daughters poise for a formal portrait|Alexander Graham Bell, his wife Mabel Gardiner Hubbard, and their daughters Elsie (left) and Marian ca. 1885
thumb|alt=A three-story gray mansion, with a covered front entrance|The Brodhead–Bell mansion, the Bell family residence in Washington, D.C., from 1882 to 1889
On July 11, 1877, a few days after the Bell Telephone Company was established, Bell married Mabel Hubbard (1857–1923) at the Hubbard estate in Cambridge, Massachusetts. His wedding present to his bride was to turn over 1,487 of his 1,497 shares in the newly formed Bell Telephone Company. Shortly thereafter, the newly-weds embarked on a year-long honeymoon in Europe. During that excursion, Bell took a handmade model of his telephone with him, making it a "working holiday". The courtship had begun years earlier; however, Bell waited until he was more financially secure before marrying. Although the telephone appeared to be an "instant" success, it was not initially a profitable venture and Bell's main sources of income were from lectures until after 1897. One unusual request exacted by his fiancée was that he use "Alec" rather than the family's earlier familiar name of "Aleck". From 1876, he would sign his name "Alec Bell". They had four children:
Elsie May Bell (1878–1964) who married Gilbert Hovey Grosvenor of National Geographic fame.
Marian Hubbard Bell (1880–1962) who was referred to as "Daisy". Married David Fairchild.
Two sons who died in infancy (Edward in 1881 and Robert in 1883).
The Bell family home was in Cambridge, Massachusetts, until 1880 when Bell's father-in-law bought a house in Washington, D.C.; in 1882 he bought a home in the same city for Bell's family, so they could be with him while he attended to the numerous court cases involving patent disputes.
Bell was a British subject throughout his early life in Scotland and later in Canada until 1882 when he became a naturalized citizen of the United States. In 1915, he characterized his status as: "I am not one of those hyphenated Americans who claim allegiance to two countries." Despite this declaration, Bell has been proudly claimed as a "native son" by all three countries he resided in: the United States, Canada, and the United Kingdom.
By 1885, a new summer retreat was contemplated. That summer, the Bells had a vacation on Cape Breton Island in Nova Scotia, Canada, spending time at the small village of Baddeck. Returning in 1886, Bell started building an estate on a point across from Baddeck, overlooking Bras d'Or Lake. By 1889, a large house, christened The Lodge was completed and two years later, a larger complex of buildings, including a new laboratory, were begun that the Bells would name Beinn Bhreagh (Gaelic: Beautiful Mountain) after Bell's ancestral Scottish highlands. Bell also built the Bell Boatyard on the estate, employing up to 40 people building experimental craft as well as wartime lifeboats and workboats for the Royal Canadian Navy and pleasure craft for the Bell family. He was an enthusiastic boater, and Bell and his family sailed or rowed a long series of vessels on Bras d'Or Lake, ordering additional vessels from the H.W. Embree and Sons boatyard in Port Hawkesbury, Nova Scotia. In his final, and some of his most productive years, Bell split his residency between Washington, D.C., where he and his family initially resided for most of the year, and Beinn Bhreagh, where they spent increasing amounts of time.
Until the end of his life, Bell and his family would alternate between the two homes, but Beinn Bhreagh would, over the next 30 years, become more than a summer home as Bell became so absorbed in his experiments that his annual stays lengthened. Both Mabel and Bell became immersed in the Baddeck community and were accepted by the villagers as "their own". The Bells were still in residence at Beinn Bhreagh when the Halifax Explosion occurred on December 6, 1917. Mabel and Bell mobilized the community to help victims in Halifax. |
Alexander Graham Bell | Later inventions | Later inventions
thumb|Alexander Graham Bell in his later years
Although Alexander Graham Bell is most often associated with the invention of the telephone, his interests were extremely varied. According to one of his biographers, Charlotte Gray, Bell's work ranged "unfettered across the scientific landscape" and he often went to bed voraciously reading the Encyclopædia Britannica, scouring it for new areas of interest. The range of Bell's inventive genius is represented only in part by the 18 patents granted in his name alone and the 12 he shared with his collaborators. These included 14 for the telephone and telegraph, four for the photophone, one for the phonograph, five for aerial vehicles, four for "hydroairplanes", and two for selenium cells. Bell's inventions spanned a wide range of interests and included a metal jacket to assist in breathing, the audiometer to detect minor hearing problems, a device to locate icebergs, investigations on how to separate salt from seawater, and work on finding alternative fuels.
Bell worked extensively in medical research and invented techniques for teaching speech to the deaf. During his Volta Laboratory period, Bell and his associates considered impressing a magnetic field on a record as a means of reproducing sound. Although the trio briefly experimented with the concept, they could not develop a workable prototype. They abandoned the idea, never realizing they had glimpsed a basic principle which would one day find its application in the tape recorder, the hard disc and floppy disc drive, and other magnetic media.
Bell's own home used a primitive form of air conditioning, in which fans blew currents of air across great blocks of ice. He also anticipated modern concerns with fuel shortages and industrial pollution. Methane gas, he reasoned, could be produced from the waste of farms and factories. At his Canadian estate in Nova Scotia, he experimented with composting toilets and devices to capture water from the atmosphere. In a magazine article published in 1917, he reflected on the possibility of using solar energy to heat houses. |
Alexander Graham Bell | Photophone | Photophone
thumb|Photophone receiver, one half of Bell's wireless optical communication system, ca. 1880
Bell and his assistant Charles Sumner Tainter jointly invented a wireless telephone, named a photophone, which allowed for the transmission of both sounds and normal human conversations on a beam of light. Both men later became full associates in the Volta Laboratory Association.
On June 21, 1880, Bell's assistant transmitted a wireless voice telephone message a considerable distance, from the roof of the Franklin School in Washington, D.C., to Bell at the window of his laboratory, some away, 19 years before the first voice radio transmissions.
Bell believed the photophone's principles were his life's "greatest achievement", telling a reporter shortly before his death that the photophone was "the greatest invention [I have] ever made, greater than the telephone". The photophone was a precursor to the fiber-optic communication systems which achieved popular worldwide usage in the 1980s. Its master patent was issued in December 1880, many decades before the photophone's principles came into popular use. |
Alexander Graham Bell | Metal detector | Metal detector
thumb|Bell's voice, from a Volta Laboratory recording in 1885. Restored by the Smithsonian in 2013.
Bell is also credited with developing one of the early versions of a metal detector through the use of an induction balance, after the shooting of U.S. President James A. Garfield in 1881. According to some accounts, the metal detector worked flawlessly in tests but did not find Guiteau's bullet, partly because the metal bed frame on which the President was lying disturbed the instrument, resulting in static. Garfield's surgeons, led by self-appointed chief physician Doctor Willard Bliss, were sceptical of the device, and ignored Bell's requests to move the President to a bed not fitted with metal springs. Alternatively, although Bell had detected a slight sound on his first test, the bullet may have been lodged too deeply to be detected by the crude apparatus.
Bell's own detailed account, presented to the American Association for the Advancement of Science in 1882, differs in several particulars from most of the many and varied versions now in circulation, by concluding that extraneous metal was not to blame for failure to locate the bullet. Perplexed by the peculiar results he had obtained during an examination of Garfield, Bell "proceeded to the Executive Mansion the next morning ... to ascertain from the surgeons whether they were perfectly sure that all metal had been removed from the neighborhood of the bed. It was then recollected that underneath the horse-hair mattress on which the President lay was another mattress composed of steel wires. Upon obtaining a duplicate, the mattress was found to consist of a sort of net of woven steel wires, with large meshes. The extent of the [area that produced a response from the detector] having been so small, as compared with the area of the bed, it seemed reasonable to conclude that the steel mattress had produced no detrimental effect." In a footnote, Bell adds, "The death of President Garfield and the subsequent post-mortem examination, however, proved that the bullet was at too great a distance from the surface to have affected our apparatus." |
Alexander Graham Bell | Hydrofoils | Hydrofoils
thumb|Bell's HD-4 on a test run ca. 1919
The March 1906 Scientific American article by American pioneer William E. Meacham explained the basic principle of hydrofoils and hydroplanes. Bell considered the invention of the hydroplane as a very significant achievement. Based on information gained from that article, he began to sketch concepts of what is now called a hydrofoil boat. Bell and assistant Frederick W. "Casey" Baldwin began hydrofoil experimentation in the summer of 1908 as a possible aid to airplane takeoff from water. Baldwin studied the work of the Italian inventor Enrico Forlanini and began testing models. This led him and Bell to the development of practical hydrofoil watercraft.
During his world tour of 1910–11, Bell and Baldwin met with Forlanini in France. They had rides in the Forlanini hydrofoil boat over Lake Maggiore. Baldwin described it as being as smooth as flying. On returning to Baddeck, a number of initial concepts were built as experimental models, including the Dhonnas Beag (Scottish Gaelic for 'little devil'), the first self-propelled Bell-Baldwin hydrofoil. The experimental boats were essentially proof-of-concept prototypes that culminated in the more substantial HD-4, powered by Renault engines. A top speed of was achieved, with the hydrofoil exhibiting rapid acceleration, good stability, and steering, along with the ability to take waves without difficulty.
In 1913, Dr. Bell hired Walter Pinaud, a Sydney yacht designer and builder as well as the proprietor of Pinaud's Yacht Yard in Westmount, Nova Scotia, to work on the pontoons of the HD-4. Pinaud soon took over the boatyard at Bell Laboratories on Beinn Bhreagh, Bell's estate near Baddeck, Nova Scotia. Pinaud's experience in boatbuilding enabled him to make useful design changes to the HD-4. After the First World War, work began again on the HD-4. Bell's report to the U.S. Navy permitted him to obtain two engines in July 1919. On September 9, 1919, the HD-4 set a world marine speed record of , a record which stood for ten years. |
Alexander Graham Bell | Aeronautics | Aeronautics
thumb|AEA Silver Dart
In 1891, Bell had begun experiments to develop motor-powered heavier-than-air aircraft. The AEA was first formed as Bell shared the vision to fly with his wife, who advised him to seek "young" help as Bell was at the age of 60.
In 1898, Bell experimented with tetrahedral box kites and wings constructed of multiple compound tetrahedral kites covered in maroon silk. The tetrahedral wings were named Cygnet I, II, and III, and were flown both unmanned and manned (Cygnet I crashed during a flight carrying Selfridge) in the period from 1907 to 1912. Some of Bell's kites are on display at the Alexander Graham Bell National Historic Site."Nova Scotia's Electric Scrapbook." ns1763.ca. Retrieved: December 29, 2009.
Bell was a supporter of aerospace engineering research through the Aerial Experiment Association (AEA), officially formed at Baddeck, Nova Scotia, in October 1907 at the suggestion of his wife Mabel and with her financial support after the sale of some of her real estate. The AEA was headed by Bell and the founding members were four young men: American Glenn H. Curtiss, a motorcycle manufacturer at the time and who held the title "world's fastest man", having ridden his self-constructed motor bicycle around in the shortest time, and who was later awarded the Scientific American Trophy for the first official one-kilometre flight in the Western hemisphere, and who later became a world-renowned airplane manufacturer; Lieutenant Thomas Selfridge, an official observer from the U.S. Federal government and one of the few people in the army who believed that aviation was the future; Frederick W. Baldwin, the first Canadian and first British subject to pilot a public flight in Hammondsport, New York; and J. A. D. McCurdy–Baldwin and McCurdy being new engineering graduates from the University of Toronto.
The AEA's work progressed to heavier-than-air machines, applying their knowledge of kites to gliders. Moving to Hammondsport, the group then designed and built the Red Wing, framed in bamboo and covered in red silk and powered by a small air-cooled engine. On March 12, 1908, over Keuka Lake, the biplane lifted off on the first public flight in North America. The innovations that were incorporated into this design included a cockpit enclosure and tail rudder (later variations on the original design would add ailerons as a means of control). One of the AEA's inventions, a practical wingtip form of the aileron, was to become a standard component on all aircraft. The White Wing and June Bug were to follow and by the end of 1908, over 150 flights without mishap had been accomplished. However, the AEA had depleted its initial reserves and only a $15,000 grant from Mrs. Bell allowed it to continue with experiments. Lt. Selfridge had also become the first person killed in a powered heavier-than-air flight in a crash of the Wright Flyer at Fort Myer, Virginia, on September 17, 1908.
Their final aircraft design, the Silver Dart, embodied all of the advancements found in the earlier machines. On February 23, 1909, Bell was present as the Silver Dart flown by J. A. D. McCurdy from the frozen ice of Bras d'Or made the first aircraft flight in Canada. Bell had worried that the flight was too dangerous and had arranged for a doctor to be on hand. With the successful flight, the AEA disbanded and the Silver Dart would revert to Baldwin and McCurdy, who began the Canadian Aerodrome Company and would later demonstrate the aircraft to the Canadian Army. |
Alexander Graham Bell | Heredity and genetics | Heredity and genetics
Bell, along with many members of the scientific community at the time, took an interest in the popular science of heredity which grew out of the publication of Charles Darwin's book On the Origin of Species in 1859. On his estate in Nova Scotia, Bell conducted meticulously recorded breeding experiments with rams and ewes. Over the course of more than 30 years, Bell sought to produce a breed of sheep with multiple nipples that would bear twins. He specifically wanted to see if selective breeding could produce sheep with four functional nipples with enough milk for twin lambs. This interest in animal breeding caught the attention of scientists focused on the study of heredity and genetics in humans.
In November 1883, Bell presented a paper at a meeting of the National Academy of Sciences titled Upon the Formation of a Deaf Variety of the Human Race. The paper is a compilation of data on the hereditary aspects of deafness. Bell's research indicated that a hereditary tendency toward deafness, as indicated by the possession of deaf relatives, was an important element in determining the production of deaf offspring. He noted that the proportion of deaf children born to deaf parents was many times greater than the proportion of deaf children born to the general population. In the paper, Bell delved into social commentary and discussed hypothetical public policies to bring an end to deafness. He also criticized educational practices that segregated deaf children rather than integrated them fulling into mainstream classrooms. The paper did not propose sterilization of deaf people or prohibition on intermarriage, noting that "We cannot dictate to men and women whom they should marry and natural selection no longer influences mankind to any great extent."
A review of Bell's Memoir upon the Formation of a Deaf Variety of the Human Race appearing in an 1885 issue of the American Annals of the Deaf and Dumb states that "Dr. Bell does not advocate legislative interference with the marriages of the deaf for several reasons one of which is that the results of such marriages have not yet been sufficiently investigated." The article goes on to say that "the editorial remarks based thereon did injustice to the author." The paper's author concludes by saying "A wiser way to prevent the extension of hereditary deafness, it seems to us, would be to continue the investigations which Dr. Bell has so admirable begun until the laws of the transmission of the tendency to deafness are fully understood, and then by explaining those laws to the pupils of our schools to lead them to choose their partners in marriage in such a way that deaf-mute offspring will not be the result."
Historians have noted that Bell explicitly opposed laws regulating marriage, and never mentioned sterilization in any of his writings. Even after Bell agreed to engage with scientists conducting eugenic research, he consistently refused to support public policy that limited the rights or privileges of the deaf.
Bell's interest and research on heredity attracted the interest of Charles Davenport, a Harvard professor and head of the Cold Spring Harbor Laboratory. In 1906, Davenport, who was also the founder of the American Breeder's Association, approached Bell about joining a new committee on eugenics chaired by David Starr Jordan. In 1910, Davenport opened the Eugenics Records office at Cold Spring Harbor. To give the organization scientific credibility, Davenport set up a Board of Scientific Directors naming Bell as chairman. Other members of the board included Luther Burbank, Roswell H. Johnson, Vernon L. Kellogg, and William E. Castle.
In 1921, a Second International Congress of Eugenics was held in New York at the Museum of Natural History and chaired by Davenport. Although Bell did not present any research or speak as part of the proceedings, he was named as honorary president as a means to attract other scientists to attend the event. A summary of the event notes that Bell was a "pioneering investigator in the field of human heredity". |
Alexander Graham Bell | Death | Death
Bell died of complications arising from diabetes on August 2, 1922, at his private estate in Cape Breton, Nova Scotia, at age 75. Bell had also been affected by pernicious anemia. His last view of the land he had inhabited was by moonlight on his mountain estate at 2:00 a.m. While tending to him after his long illness, Mabel, his wife, whispered, "Don't leave me." By way of reply, Bell signed "no...", lost consciousness, and died shortly after.
On learning of Bell's death, the Canadian Prime Minister, Mackenzie King, cabled Mrs. Bell, saying:
Bell's coffin was constructed of Beinn Bhreagh pine by his laboratory staff, lined with the same red silk fabric used in his tetrahedral kite experiments. To help celebrate his life, his wife asked guests not to wear black (the traditional funeral colour) while attending his service, during which soloist Jean MacDonald sang a verse of Robert Louis Stevenson's "Requiem":
Upon the conclusion of Bell's funeral, for one minute at 6:25 p.m. Eastern Time, "every phone on the continent of North America was silenced in honor of the man who had given to mankind the means for direct communication at a distance".
Alexander Graham Bell was buried atop Beinn Bhreagh mountain, on his estate where he had resided increasingly for the last 35 years of his life, overlooking Bras d'Or Lake. He was survived by his wife Mabel, his two daughters, Elsie May and Marian, and nine of his grandchildren. |
Alexander Graham Bell | Legacy and honours | Legacy and honours
thumb|Bell statue by A. E. Cleeve Horne in front of the Bell Telephone Building of Brantford, Ontario, The Telephone City. (Brantford Heritage Inventory, City of Brantford)
Honours and tributes flowed to Bell in increasing numbers as his invention became ubiquitous and his personal fame grew. Bell received numerous honorary degrees from colleges and universities to the point that the requests almost became burdensome. During his life, he also received dozens of major awards, medals, and other tributes. These included statuary monuments to both him and the new form of communication his telephone created, including the Bell Telephone Memorial erected in his honour in Alexander Graham Bell Gardens in Brantford, Ontario, in 1917.
thumb|A quote by Alexander Graham Bell engraved in the stone wall within the Peace Chapel of the International Peace Garden (in Manitoba Canada and North Dakota, USA)
A large number of Bell's writings, personal correspondence, notebooks, papers, and other documents reside in both the United States Library of Congress Manuscript Division (as the Alexander Graham Bell Family Papers), and at the Alexander Graham Bell Institute, Cape Breton University, Nova Scotia; major portions of which are available for online viewing.
A number of historic sites and other marks commemorate Bell in North America and Europe, including the first telephone companies in the United States and Canada. Among the major sites are:
The Alexander Graham Bell National Historic Site, maintained by Parks Canada, which incorporates the Alexander Graham Bell Museum, in Baddeck, Nova Scotia, close to the Bell estate Beinn Bhreagh;
The Bell Homestead National Historic Site, includes the Bell family home, "Melville House", and farm overlooking Brantford, Ontario and the Grand River. It was their first home in North America;
Canada's first telephone company building, the "Henderson Home" of the late 1870s, a predecessor of the Bell Telephone Company of Canada (officially chartered in 1880). In 1969, the building was carefully moved to the historic Bell Homestead National Historic Site in Brantford, Ontario, and was refurbished to become a telephone museum. The Bell Homestead, the Henderson Home telephone museum, and the National Historic Site's reception centre are all maintained by the Bell Homestead Society;
The Alexander Graham Bell Memorial Park, which features a broad neoclassical monument built in 1917 by public subscription. The monument depicts mankind's ability to span the globe through telecommunications;"Alexander Graham Bell Memorial Park." maps.google.com. Retrieved: February 14, 2012.
The Alexander Graham Bell Museum (opened in 1956), part of the Alexander Graham Bell National Historic Site which was completed in 1978 in Baddeck, Nova Scotia. Many of the museum's artifacts were donated by Bell's daughters.thumb|The Bell Museum, Cape Breton, part of the Alexander Graham Bell National Historic Site
In 1880, Bell received the Volta Prize with a purse of 50,000 French francs (approximately US$ in today's currency) for the invention of the telephone from the French government. Among the luminaries who judged were Victor Hugo and Alexandre Dumas. The Volta Prize was conceived by Napoleon III in 1852, and named in honour of Alessandro Volta, with Bell becoming the second recipient of the grand prize in its history. Since Bell was becoming increasingly affluent, he used his prize money to create endowment funds (the 'Volta Fund') and institutions in and around Washington, D.C., the capital of the United States, including the Volta Laboratory Association (1880), also known as Volta Laboratory and as the Alexander Graham Bell Laboratory, which eventually led to the Volta Bureau (1887), a centre for studies on deafness, which remains in operation in the Georgetown neighborhood of Washington, D.C.
The Volta Laboratory became an experimental facility devoted to scientific discovery, and the very next year it improved Edison's phonograph by substituting wax for tinfoil as the recording medium and incising the recording rather than indenting it, key upgrades that Edison himself later adopted. The laboratory was also the site where he and his associate invented his "proudest achievement", "the photophone", the "optical telephone" which presaged fibre optical telecommunications while the Volta Bureau would later evolve into the Alexander Graham Bell Association for the Deaf and Hard of Hearing (the AG Bell), a centre for the research and pedagogy of deafness.
In partnership with Gardiner Greene Hubbard, Bell helped establish the publication Science during the early 1880s. In 1898, Bell was elected as the second president of the National Geographic Society, serving until 1903, and was primarily responsible for the extensive use of illustrations, including photography, in the magazine. He also served for many years as a Regent of the Smithsonian Institution (1898–1922). The French government conferred on him the decoration of the Légion d'honneur (Legion of Honour); the Royal Society of Arts in London awarded him the Albert Medal in 1902; the University of Würzburg, Bavaria, granted him a PhD, and he was awarded the Franklin Institute's Elliott Cresson Medal in 1912. He was one of the founders of the American Institute of Electrical Engineers in 1884 and served as its president from 1891 to 1892. Bell was later awarded the AIEE's Edison Medal in 1914 "For meritorious achievement in the invention of the telephone".
The bel (B) and the smaller decibel (dB) are units of measurement of sound pressure level (SPL) invented by Bell Labs and named after him."Decibel." sfu.ca. Retrieved: July 28, 2010. Since 1976, the IEEE's Alexander Graham Bell Medal has been awarded to honour outstanding contributions in the field of telecommunications.
thumb|upright=0.8|left|A.G. Bell issue of 1940
In 1936, the US Patent Office declared Bell first on its list of the country's greatest inventors, leading to the US Post Office issuing a commemorative stamp honouring Bell in 1940 as part of its 'Famous Americans Series'. The First Day of Issue ceremony was held on October 28 in Boston, Massachusetts, the city where Bell spent considerable time on research and working with the deaf. The Bell stamp became very popular and sold out in little time. The stamp became, and remains to this day, the most valuable one of the series.Scott's United States Stamp catalogue.
The 150th anniversary of Bell's birth in 1997 was marked by a special issue of commemorative £1 banknotes from the Royal Bank of Scotland. The illustrations on the reverse of the note include Bell's face in profile, his signature, and objects from Bell's life and career: users of the telephone over the ages; an audio wave signal; a diagram of a telephone receiver; geometric shapes from engineering structures; representations of sign language and the phonetic alphabet; the geese which helped him to understand flight; and the sheep which he studied to understand genetics. Additionally, the Government of Canada honoured Bell in 1997 with a C$100 gold coin, in tribute also to the 150th anniversary of his birth, and with a silver dollar coin in 2009 in honour of the 100th anniversary of flight in Canada. That first flight was made by an airplane designed under Dr. Bell's tutelage, named the Silver Dart. Bell's image, and also those of his many inventions have graced paper money, coinage, and postal stamps in numerous countries worldwide for many dozens of years.
Alexander Graham Bell was ranked 57th among the 100 Greatest Britons (2002) in an official BBC nationwide poll, and among the Top Ten Greatest Canadians (2004), and the 100 Greatest Americans (2005). In 2006, Bell was also named as one of the 10 greatest Scottish scientists in history after having been listed in the National Library of Scotland's 'Scottish Science Hall of Fame'. Bell's name is still widely known and used as part of the names of dozens of educational institutes, corporate namesakes, street and place names around the world.
thumb|Bell, an alumnus of the University of Edinburgh, Scotland, receiving an honorary Doctor of Laws degree (LL.D.) at the university in 1906 |
Alexander Graham Bell | Honorary degrees | Honorary degrees
Alexander Graham Bell, who could not complete the university program of his youth, received at least a dozen honorary degrees from academic institutions, including eight honorary LL.D.s (Doctorate of Law), two Ph.D.s, a D.Sc., and an M.D.:
Gallaudet College (then named National Deaf-Mute College) in Washington, D.C. (Ph.D.) in 1880
University of Würzburg in Würzburg, Bavaria (Ph.D.) in 1882
Heidelberg University in Heidelberg, Germany (M.D.) in 1886
Harvard University in Cambridge, Massachusetts (LL.D.) in 1896
Illinois College, in Jacksonville, Illinois (LL.D.) in 1896, possibly 1881
Amherst College in Amherst, Massachusetts (LL.D.) in 1901
University of St Andrews in St Andrews, Scotland (LL.D) in 1902
University of Oxford in Oxford, England (D.Sc.) in 1906
University of Edinburgh in Edinburgh, Scotland (LL.D.) in 1906
The George Washington University in Washington, D.C. (LL.D.) in 1913
Queen's University at Kingston in Kingston, Ontario, Canada (LL.D.) in 1908
Dartmouth College in Hanover, New Hampshire (LL.D.) in 1913, possibly 1914 |
Alexander Graham Bell | Portrayal in film, television and fiction | Portrayal in film, television and fiction
The 1939 film The Story of Alexander Graham Bell was based on his life and works.
Eyewitness No. 90 A Great Inventor Is Remembered, a 1957 NFB short about Bell.
The 1965 BBC miniseries Alexander Graham Bell starring Alec McCowen and Francesca Annis.
The 1992 film The Sound and the Silence was a TV film.
Biography aired an episode Alexander Graham Bell: Voice of Invention on August 6, 1996.
John Tench portrays Bell five times in the Canadian television period detective series Murdoch Mysteries. Bell appeared in "Invention Convention" (April 24, 2012), "Murdoch in Toyland" (May 8, 2012), "8 Footsteps" (October 9, 2017), "Staring Blindly into the Future" (January 13, 2020) and "Murdoch and the Sonic Boom" (October 24, 2022).
A Sign of Her Own, by Sarah Marsh (2024), a novel about a pupil of Bell's Visible Speech, who is "gradually realising and acting upon the harm he was inflicting on her and other deaf people." |
Alexander Graham Bell | Bibliography | Bibliography
Also published as:
|
Alexander Graham Bell | See also | See also
Alexander Graham Bell Association for the Deaf and Hard of Hearing
Alexander Graham Bell National Historic Site
Bell Boatyard
Bell Homestead National Historic Site
Bell Telephone Memorial
Berliner, Emile
Bourseul, Charles
IEEE Alexander Graham Bell Medal
Manzetti, Innocenzo
Meucci, Antonio
Oriental Telephone Company
People on Scottish banknotes
Pioneers, a Volunteer Network
Reis, Philipp
The Story of Alexander Graham Bell, a 1939 movie of his life
The Telephone Cases
Volta Laboratory and Bureau |
Alexander Graham Bell | References | References |
Alexander Graham Bell | Notes | Notes |
Alexander Graham Bell | Citations | Citations |
Alexander Graham Bell | Further reading | Further reading
Mullett, Mary B. The Story of A Famous Inventor. New York: Rogers and Fowle, 1921.
Walters, Eric. The Hydrofoil Mystery. Toronto, Ontario, Canada: Puffin Books, 1999. .
Winzer, Margret A. The History Of Special Education: From Isolation To Integration. Washington, D.C.: Gallaudet University Press, 1993. . |
Alexander Graham Bell | External links | External links
Alexander and Mabel Bell Legacy Foundation
Alexander Graham Bell Institute at Cape Breton University (archived 8 December 2015)
Bell Telephone Memorial, Brantford, Ontario
Bell Homestead National Historic Site, Brantford, Ontario
Alexander Graham Bell National Historic Site of Canada, Baddeck, Nova Scotia
Alexander Graham Bell Family Papers at the Library of Congress
Biography at the Dictionary of Canadian Biography Online
Science.ca profile: Alexander Graham Bell
Alexander Graham Bell's notebooks at the Internet Archive
"Téléphone et photophone : les contributions indirectes de Graham Bell à l'idée de la vision à distance par l'électricité" at the Histoire de la télévision
Alexander Graham Bell and the Aerial Experiment Association Photograph Collection at The Museum of Flight (Seattle, Washington). |
Alexander Graham Bell | Multimedia | Multimedia
Alexander Graham Bell at The Biography Channel
Shaping The Future, from the Heritage Minutes and Radio Minutes collection at HistoricaCanada.ca (1:31 audio drama, Adobe Flash required)
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Alexander Graham Bell | Table of Content | Short description, Early life, First invention, Education, First experiments with sound, Family tragedy, Canada, Work with deaf people, Continuing experimentation, The telephone, The race to the patent office, Later developments, Competitors, Family life, Later inventions, Photophone, Metal detector, Hydrofoils, Aeronautics, Heredity and genetics, Death, Legacy and honours, Honorary degrees, Portrayal in film, television and fiction, Bibliography, See also, References, Notes, Citations, Further reading, External links, Multimedia |
Anatolia | Short description | Anatolia (), also known as Asia Minor, is a peninsula in West Asia that makes up the majority of the land area of Turkey. It is the westernmost protrusion of Asia and is geographically bounded by the Mediterranean Sea to the south, the Aegean Sea to the west, the Turkish Straits to the northwest, and the Black Sea to the north. The eastern and southeastern limits have been expanded either to the entirety of Asiatic Turkey or to an imprecise line from the Black Sea to the Gulf of Alexandretta. Topographically, the Sea of Marmara connects the Black Sea with the Aegean Sea through the Bosporus and the Dardanelles, and separates Anatolia from Thrace in Southeast Europe.
During the Neolithic, Anatolia was an early centre for the development of farming after it originated in the adjacent Fertile Crescent. Beginning around 9,000 years ago, there was a major migration of Anatolian Neolithic Farmers into Europe, with their descendants coming to dominate the continent as far west as the Iberian Peninsula and the British Isles.
The earliest recorded inhabitants of Anatolia, who were neither Indo-European nor Semitic, were gradually absorbed by the incoming Indo-European Anatolian peoples, who spoke the now-extinct Anatolian languages. The major Anatolian languages included Hittite, Luwian, and Lydian; other local languages, albeit poorly attested, included Phrygian and Mysian. The Hurro-Urartian languages were spoken throughout Mitanni in the southeast, while Galatian, a Celtic language, was spoken throughout Galatia in the central peninsula. Among the other peoples who established a significant presence in ancient Anatolia were the Galatians, the Hurrians, the Assyrians, the Armenians, the Hattians, and the Cimmerians, as well as some of the ancient Greek tribes, including the Ionians, the Dorians, and the Aeolians. In the era of classical antiquity (see Classical Anatolia), the Anatolian languages were largely replaced by the Greek language, which came to further dominate the region during the Hellenistic period and the Roman period.
The Byzantine period saw the decline of Greek influence throughout the peninsula as the Byzantine–Seljuk wars enabled the incoming Seljuk Turks to establish a foothold in the region. Thus, the process of Anatolia's Turkification began under the Seljuk Empire in the late 11th century and continued under the Ottoman Empire until the early 20th century, when the Ottoman dynasty collapsed in the aftermath of World War I. Between 1894 and 1924, millions of non-Turkic peoples and Christians were suppressed and removed by the Ottoman Turkish authorities from the bulk of the area of modern-day Turkey. Nonetheless, a variety of non-Turkic languages continue to be spoken by ethnic minorities in Anatolia today, including Arabic, Kurdish, Neo-Aramaic, Armenian, the North Caucasian languages, Laz, Georgian, and Greek. |
Anatolia | Geography | Geography
thumb|right|Europe during the Last Glacial Maximum, c. 20,000 years ago. Anatolia was connected to the European mainland until ,Dimitrov P., 2003. "The Black Sea – a Clue to the Secret of World Flood". . Oceanology, 4, 52–57.Dimitrov P., D. Dimitrov. 2004. The Black Sea The Flood and the ancient myths. . "Slavena", Varna, , 91 pp., . when the melting ice sheets caused the sea level in the Mediterranean to rise around , triggering the formation of the Turkish Straits. As a result, two former lakes (the Sea of Marmara and the Black Sea) were connected to the Mediterranean Sea, which separated Anatolia from Europe.
Traditionally, Anatolia is considered to extend in the east to an indefinite line running from the Gulf of Alexandretta to the Black Sea, coterminous with the Anatolian Plateau. This traditional geographical definition is used, for example, in the latest edition of Merriam-Webster's Geographical Dictionary. Under this definition, Anatolia is bounded to the east by the Armenian Highlands, and the Euphrates before that river bends to the southeast to enter Mesopotamia.Stephen Mitchell (1995). Anatolia: Land, Men, and Gods in Asia Minor. The Celts in Anatolia and the impact of Roman rule. Clarendon Press, 266 pp. To the southeast, it is bounded by the ranges that separate it from the Orontes valley in Syria and the Mesopotamian plain.
Following the Armenian genocide, Western Armenia was renamed the Eastern Anatolia region by the newly established Turkish government. In 1941, with the First Geography Congress which divided Turkey into seven geographical regions based on differences in climate and landscape, the eastern provinces of Turkey were placed into the Eastern Anatolia region,A Comparative Analysis Regarding Pictures Included in Secondary School Geography Textbooks Taught in Turkey. , Okan Yasar and Mehmet Seremet, International Research in Geographical and Environmental Education, 2007. which largely corresponds to the historical region of Western Armenia. Vazken Davidian terms the expanded use of "Anatolia" to apply to territory in eastern Turkey that was formerly referred to as Armenia (which had a sizeable Armenian population before the Armenian genocide) an "ahistorical imposition" and notes that a growing body of literature is uncomfortable with referring to the Ottoman East as "Eastern Anatolia".Vazken Khatchig Davidian, "Imagining Ottoman Armenia: Realism and Allegory in Garabed Nichanian's Provincial Wedding in Moush and Late Ottoman Art Criticism", p. 7 & footnote 34, in Études arméniennes contemporaines volume 6, 2015.
The highest mountain in the Eastern Anatolia region (also the highest peak in the Armenian Highlands) is Mount Ararat (5123 m). The Euphrates, Aras, Karasu and Murat rivers connect the Armenian Highlands to the South Caucasus and the Upper Euphrates Valley. Along with the Çoruh, these rivers are the longest in the Eastern Anatolia region. |
Anatolia | Etymology | Etymology
The English-language name Anatolia derives from the Greek () meaning "the East" and designating (from a Greek point of view) eastern regions in general. The Greek word refers to the direction where the sun rises, coming from anatello '(Ι) rise up', comparable to terms in other languages such as "levant" from Latin 'to rise', "orient" from Latin 'to arise, to originate', Hebrew mizraḥ 'east' from zaraḥ 'to rise, to shine', Aramaic midnaḥ from denaḥ 'to rise, to shine'.
The use of Anatolian designations has varied over time, perhaps originally referring to the Aeolian, Ionian and Dorian colonies situated along the eastern coasts of the Aegean Sea, but also encompassing eastern regions in general. Such use of Anatolian designations was employed during the reign of Roman Emperor Diocletian (), who created the Diocese of the East, known in Greek as the Eastern Diocese, but completely unrelated to the regions of Asia Minor. In their widest territorial scope, Anatolian designations were employed during the reign of Roman Emperor Constantine I (306–337), who created the Praetorian prefecture of the East, known in Greek as the Eastern Prefecture, encompassing all eastern regions of the Late Roman Empire and spanning from Thrace to Egypt.
Only after the loss of other eastern regions during the 7th century and the reduction of Byzantine eastern domains to Asia Minor, that region became the only remaining part of the Byzantine East, and thus commonly referred to (in Greek) as the Eastern part of the Empire. At the same time, the Anatolic Theme ( / "the Eastern theme") was created, as a province (theme) covering the western and central parts of Turkey's present-day Central Anatolia Region, centered around Iconium, but ruled from the city of Amorium."On the First Thema, called Anatolikón. This theme is called Anatolikón or Theme of the Anatolics, not because it is above and in the direction of the east where the sun rises, but because it lies to the East of Byzantium and Europe." Constantine VII Porphyrogenitus, De Thematibus, ed. A. Pertusi. Vatican: Vatican Library, 1952, pp. 59 ff.John Haldon, Byzantium, a History, 2002, p. 32.
The Latinized form "", with its -ia ending, is probably a Medieval Latin innovation. The modern Turkish form derives directly from the Greek name (Anatolḗ). The Russian male name Anatoly, the French Anatole and plain Anatol, all stemming from saints Anatolius of Laodicea (d. 283) and Anatolius of Constantinople (d. 458; the first Patriarch of Constantinople), share the same linguistic origin. |
Anatolia | Names | Names
The oldest known name for any region within Anatolia is related to its central area, known as the "Land of Hatti" – a designation that was initially used for the land of ancient Hattians, but later became the most common name for the entire territory under the rule of ancient Hittites.
The first recorded name the Greeks used for the Anatolian peninsula, though not particularly popular at the time, was Ἀσία (Asía),Henry George Liddell, Robert Scott, Ἀσία. , A Greek-English Lexicon, on Perseus. perhaps from an Akkadian expression for the "sunrise" or possibly echoing the name of the Assuwa league in western Anatolia. The Romans used it as the name of their province, comprising the west of the peninsula plus the nearby Aegean Islands. As the name "Asia" broadened its scope to apply to the vaster region east of the Mediterranean, some Greeks in Late Antiquity came to use the name Asia Minor (Μικρὰ Ἀσία, Mikrà Asía), meaning "Lesser Asia" to refer to present-day Anatolia, whereas the administration of the Empire preferred the description Ἀνατολή (Anatolḗ; ).
The endonym Ῥωμανία (Rōmanía "the land of the Romans, i.e. the Eastern Roman Empire") was understood as another name for the province by the invading Seljuq Turks, who founded a Sultanate of Rûm in 1077. Thus (land of the) Rûm became another name for Anatolia. By the 12th century Europeans had started referring to Anatolia as Turchia.
During the era of the Ottoman Empire, many mapmakers referred to the mountainous plateau in eastern Anatolia as Armenia. Other contemporary sources called the same area Kurdistan. Geographers have used East Anatolian plateau, Armenian plateau and the Iranian plateau to refer to the region; the former two largely overlap. While a standard definition of Anatolia refers to the entire Asian side of Turkey, according to archaeologist Lori Khatchadourian, this difference in terminology "primarily result[s] from the shifting political fortunes and cultural trajectories of the region since the nineteenth century".
Turkey's First Geography Congress in 1941 created two geographical regions of Turkey to the east of the Gulf of Iskenderun-Black Sea line, the Eastern Anatolia region and the Southeastern Anatolia region,Ali Yiğit, "Geçmişten Günümüze Türkiye'yi Bölgelere Ayıran Çalışmalar ve Yapılması Gerekenler", Ankara Üniversitesi Türkiye Coğrafyası Araştırma ve Uygulama Merkezi, IV. Ulural Coğrafya Sempozyumu, "Avrupa Birliği Sürecindeki Türkiye'de Bölgesel Farklılıklar", pp. 34–35. . the former largely corresponding to the western part of the Armenian Highlands, the latter to the northern part of the Mesopotamian plain. According to Richard Hovannisian, this changing of toponyms was "necessary to obscure all evidence" of the Armenian presence as part of the policy of Armenian genocide denial embarked upon by the newly established Turkish government and what Hovannisian calls its "foreign collaborators". |
Anatolia | History | History |
Anatolia | Prehistoric Anatolia | Prehistoric Anatolia
thumb|The henges in Göbekli Tepe were erected as far back as 9600 BC.
Human habitation in Anatolia dates back to the Paleolithic. Neolithic settlements include Çatalhöyük, Çayönü, Nevali Cori, Aşıklı Höyük, Boncuklu Höyük, Hacilar, Göbekli Tepe, Norşuntepe, Köşk Höyük, and Yumuktepe. Çatalhöyük (7.000 BCE) is considered the most advanced of these. Recent advances in archaeogenetics have confirmed that the spread of agriculture from the Middle East to Europe was strongly correlated with the migration of early farmers from Anatolia about 9,000 years ago, and was not just a cultural exchange. Anatolian Neolithic farmers derived most of their ancestry from local Anatolian hunter-gatherers, suggesting that agriculture was adopted in site by these hunter-gatherers and not spread by demic diffusion into the region. Anatolian derived Neolithic Farmers would subsequently spread across Europe, as far west as the Iberian Peninsula and the British Isles, as well as to the Maghreb. Most modern Europeans derive a significant part of their ancestry from these Neolithic Anatolian farmers.
Neolithic Anatolia has been proposed as the homeland of the Indo-European language family, although linguists tend to favour a later origin in the steppes north of the Black Sea. However, it is clear that the Anatolian languages, the earliest attested branch of Indo-European, have been spoken in Anatolia since at least the 19th century BCE. |
Anatolia | Ancient Anatolia | Ancient Anatolia
The earliest historical data related to Anatolia appear during the Bronze Age and continue throughout the Iron Age. The most ancient period in the history of Anatolia spans from the emergence of ancient Hattians, up to the conquest of Anatolia by the Achaemenid Empire in the 6th century BCE. |
Anatolia | Hattians and Hurrians | Hattians and Hurrians
The earliest historically attested populations of Anatolia were the Hattians in central Anatolia, and Hurrians further to the east. The Hattians were an indigenous people, whose main center was the city of Hattush. Affiliation of Hattian language remains unclear, while Hurrian language belongs to a distinctive family of Hurro-Urartian languages. All of those languages are extinct; relationships with indigenous languages of the Caucasus have been proposed, but are not generally accepted. The region became famous for exporting raw materials. Organized trade between Anatolia and Mesopotamia started to emerge during the period of the Akkadian Empire, and was continued and intensified during the period of the Old Assyrian Empire, between the 21st and the 18th centuries BCE. Assyrian traders were bringing tin and textiles in exchange for copper, silver or gold. Cuneiform records, dated , found in Anatolia at the Assyrian colony of Kanesh, use an advanced system of trading computations and credit lines. |
Anatolia | Hittite Anatolia (18th–12th centuries BCE) | Hittite Anatolia (18th–12th centuries BCE)
thumb|The Sphinx Gate in Hattusa
Unlike the Akkadians and Assyrians, whose Anatolian trading posts were peripheral to their core lands in Mesopotamia, the Hittites were centered at Hattusa (modern Boğazkale) in north-central Anatolia by the 17th century BCE. They were speakers of an Indo-European language, the Hittite language, or nesili (the language of Nesa) in Hittite. The Hittites originated from local ancient cultures that grew in Anatolia, in addition to the arrival of Indo-European languages. Attested for the first time in the Assyrian tablets of Nesa around 2000 BCE, they conquered Hattusa in the 18th century BCE, imposing themselves over Hattian- and Hurrian-speaking populations. According to the widely accepted Kurgan theory on the Proto-Indo-European homeland, however, the Hittites (along with the other Indo-European ancient Anatolians) were themselves relatively recent immigrants to Anatolia from the north. However, they did not necessarily displace the population genetically; they assimilated into the former peoples' culture, preserving the Hittite language.
The Hittites adopted the Mesopotamian cuneiform script. In the Late Bronze Age, Hittite New Kingdom () was founded, becoming an empire in the 14th century BCE after the conquest of Kizzuwatna in the south-east and the defeat of the Assuwa league in western Anatolia. The empire reached its height in the 13th century BCE, controlling much of Asia Minor, northwestern Syria, and northwest upper Mesopotamia. However, the Hittite advance toward the Black Sea coast was halted by the semi-nomadic pastoralist and tribal Kaskians, a non-Indo-European people who had earlier displaced the Palaic-speaking Indo-Europeans.Carruba, O. Das Palaische. Texte, Grammatik, Lexikon. Wiesbaden: Harrassowitz, 1970. StBoT 10 Much of the history of the Hittite Empire concerned war with the rival empires of Egypt, Assyria and the Mitanni.Georges Roux – Ancient Iraq
The Ancient Egyptians eventually withdrew from the region after failing to gain the upper hand over the Hittites and becoming wary of the power of Assyria, which had destroyed the Mitanni Empire. The Assyrians and Hittites were then left to battle over control of eastern and southern Anatolia and colonial territories in Syria. The Assyrians had better success than the Egyptians, annexing much Hittite (and Hurrian) territory in these regions.Georges Roux, Ancient Iraq. Penguin Books, 1966. |
Anatolia | Post-Hittite Anatolia (12th–6th centuries BCE) | Post-Hittite Anatolia (12th–6th centuries BCE)
After 1180 BCE, during the Late Bronze Age collapse, the Hittite Empire disintegrated into several independent Syro-Hittite states, subsequent to losing much territory to the Middle Assyrian Empire and being finally overrun by the Phrygians, another Indo-European people who are believed to have migrated from the Balkans. The Phrygian expansion into southeast Anatolia was eventually halted by the Assyrians, who controlled that region.
Luwians
Another Indo-European people, the Luwians, rose to prominence in central and western Anatolia BCE. Their language belonged to the same linguistic branch as Hittite.Melchert 2003 The general consensus amongst scholars is that Luwian was spoken across a large area of western Anatolia, including (possibly) Wilusa (Troy), the Seha River Land (to be identified with the Hermos and/or Kaikos valley), and the kingdom of Mira-Kuwaliya with its core territory of the Maeander valley.Watkins 1994; id. 1995:144–51; Starke 1997; Melchert 2003; for the geography Hawkins 1998 From the 9th century BCE, Luwian regions coalesced into a number of states such as Lydia, Caria, and Lycia, all of which had Hellenic influence.
Arameans
Arameans encroached over the borders of south-central Anatolia in the century or so after the fall of the Hittite empire, and some of the Syro-Hittite states in this region became an amalgam of Hittites and Arameans. These became known as Syro-Hittite states.
Neo-Assyrian Empire
thumb|right|230px|Fairy chimneys in Cappadocia
From the 10th to late 7th centuries BCE, much of Anatolia (particularly the southeastern regions) fell to the Neo-Assyrian Empire, including all of the Syro-Hittite states, Tabal, Commagene, the Cimmerians and Scythians, and swathes of Cappadocia.
The Neo-Assyrian empire collapsed due to a bitter series of civil wars followed by a combined attack by Medes, Persians, Scythians and their own Babylonian relations. The last Assyrian city to fall was Harran in southeast Anatolia. This city was the birthplace of the last king of Babylon, the Assyrian Nabonidus and his son and regent Belshazzar. Much of the region then fell to the short-lived Iran-based Median Empire, with the Babylonians and Scythians briefly appropriating some territory.
Cimmerian and Scythian invasions
From the late 8th century BCE, a new wave of Indo-European-speaking raiders entered northern and northeast Anatolia: the Cimmerians and Scythians. The Cimmerians overran Phrygia and the Scythians threatened to do the same to Urartu and Lydia, before both were finally checked by the Assyrians.
Early Greek presence
The north-western coast of Anatolia was inhabited by Greeks of the Achaean/Mycenaean culture from the 20th century BCE, related to the Greeks of southeastern Europe and the Aegean.Carl Roebuck, The World of Ancient Times Beginning with the Bronze Age collapse at the end of the 2nd millennium BCE, the west coast of Anatolia was settled by Ionian Greeks, usurping the area of the related but earlier Mycenaean Greeks. Over several centuries, numerous Ancient Greek city-states were established on the coasts of Anatolia. Greeks started Western philosophy on the western coast of Anatolia (Pre-Socratic philosophy). |
Anatolia | Classical Anatolia | Classical Anatolia
In Classical antiquity, Anatolia was described by the Ancient Greek historian Herodotus and later historians as divided into regions that were diverse in culture, language, and religious practices. The northern regions included Bithynia, Paphlagonia, and Pontus; to the west were Mysia, Lydia, and Caria; and Lycia, Pamphylia, and Cilicia belonged to the southern shore. There were also several inland regions: Phrygia, Cappadocia, Pisidia, and Galatia. Languages spoken included the late surviving Anatolic languages, Isaurian, and Pisidian, Greek in western and coastal regions, Phrygian spoken until the 7th century CE, local variants of Thracian in the northwest, the Galatian variant of Gaulish in Galatia until the 6th century CE,Freeman, Philip, The Galatian Language, Edwin Mellen, 2001, pp. 11–12.Clackson, James. "Language maintenance and language shift in the Mediterranean world during the Roman Empire." Multilingualism in the Graeco-Roman Worlds (2012): 36–57. p. 46: The second testimonium for the late survival of Galatian appears in the Life of Saint Euthymius, who died in ad 487.Norton, Tom. | A question of identity: who were the Galatians?. University of Wales. p. 62: The final reference to Galatian comes two hundred years later in the sixth century CE when Cyril of Scythopolis attests that Galatian was still being spoken eight hundred years after the Galatians arrived in Asia Minor. Cyril tells of the temporary possession of a monk from Galatia by Satan and rendered speechless, but when he recovered he spoke only in his native Galatian when questioned: 'If he were pressed, he spoke only in Galatian'.180 After this, the rest is silence, and further archaeological or literary discoveries are awaited to see if Galatian survived any later. In this regard, the example of Crimean Gothic is instructive. It was presumed to have died out in the fifth century CE, but the discovery of a small corpus of the language dating from the sixteenth century altered this perception. Cappadocian in the homonymous region,J. Eric Cooper, Michael J. Decker, Life and Society in Byzantine Cappadocia , p. 14 Armenian in the east, and Kartvelian languages in the northeast.
Anatolia is known as the birthplace of minted coinage (as opposed to unminted coinage, which first appears in Mesopotamia at a much earlier date) as a medium of exchange, some time in the 7th century BCE in Lydia. The use of minted coins continued to flourish during the Greek and Roman eras.Asia Minor Coins – an index of Greek and Roman coins from Asia Minor (ancient Anatolia)
During the 6th century BCE, all of Anatolia was conquered by the Persian Achaemenid Empire, the Persians having usurped the Medes as the dominant dynasty of Persia. In 499 BCE, the Ionian city-states on the west coast of Anatolia rebelled against Persian rule. The Ionian Revolt, as it became known, though quelled, initiated the Greco-Persian Wars, which ended in a Greek victory in 449 BCE, and the Ionian cities regained their independence. By the Peace of Antalcidas (387 BCE), which ended the Corinthian War, Persia regained control over Ionia.
In 334 BCE, the Macedonian Greek king Alexander the Great conquered the Anatolian peninsula from the Achaemenid Persian Empire. Alexander's conquest opened up the interior of Asia Minor to Greek settlement and influence.
thumb|250px|left|Sanctuary of the Kings of Commagene on Mount Nemrut (1st century BCE) Following the death of Alexander the Great and the subsequent breakup of the Macedonian Empire, Anatolia was ruled by a series of Hellenistic kingdoms, such as the Attalids of Pergamum and the Seleucids, the latter controlling most of Anatolia. A period of peaceful Hellenization followed, such that the local Anatolian languages had been supplanted by Greek by the 1st century BCE. In 133 BCE the last Attalid king bequeathed his kingdom to the Roman Republic; western and central Anatolia came under Roman control, but Hellenistic culture remained predominant.
Mithridates VI Eupator, ruler of the Kingdom of Pontus in northern Anatolia, waged war against the Roman Republic in the year 88 BCE in order to halt the advance of Roman hegemony in the Aegean Sea region. Mithridates VI sought to dominate Asia Minor and the Black Sea region, waging several hard-fought but ultimately unsuccessful wars (the Mithridatic Wars) to break Roman dominion over Asia and the Hellenic world."Mithradates VI Eupator", Encyclopædia Britannica He has been called the greatest ruler of the Kingdom of Pontus. Further annexations by Rome, in particular of the Kingdom of Pontus by Pompey, brought all of Anatolia under Roman control, except for the southeastern frontier with the Parthian Empire, which remained unstable for centuries, causing a series of military conflicts that culminated in the Roman–Parthian Wars (54 BCE – 217 CE). |
Anatolia | Early Christian period | Early Christian period
thumb|upright=1.1|
thumb|331x331px|The Seven churches of Asia
After the first division of the Roman Empire, Anatolia became part of the Eastern Roman Empire, otherwise known as the Byzantine Empire or Byzantium. In the 1st century CE, Anatolia became one of the first places where Christianity spread, so that by the 4th century CE, western and central Anatolia were overwhelmingly Christian and Greek-speaking.
Byzantine Anatolia was one of the wealthiest and most densely populated places in the Later Roman Empire. Anatolia's wealth grew during the 4th and 5th centuries thanks, in part, to the Pilgrim's Road that ran through the peninsula. Literary evidence about the rural landscape stems from the Christian hagiographies of the 6th-century Nicholas of Sion and 7th-century Theodore of Sykeon. Large and prosperous urban centers of Byzantine Anatolia included Assos, Ephesus, Miletus, Nicaea, Pergamum, Priene, Sardis, and Aphrodisias.
From the mid-5th century onwards, urbanism was affected negatively and began to decline, while the rural areas reached unprecedented levels of prosperity in the region. Historians and scholars continue to debate the cause of the urban decline in Byzantine Anatolia between the 6th and 7th centuries, variously attributing it to the Plague of Justinian (541), the Byzantine–Sasanian War (602–628), and the Arab invasion of the Levant (634–638). |
Anatolia | Medieval period | Medieval period
thumb|left|upright=1.35|Byzantine Anatolia and the Byzantine-Arab frontier zone in the mid-9th century
In the 10 years following the Battle of Manzikert in 1071, the Seljuk Turks from Central Asia migrated over large areas of Anatolia, with particular concentrations around the northwestern rim. The Turkish language and the Islamic religion were gradually introduced as a result of the Seljuk conquest, and this period marks the start of Anatolia's slow transition from predominantly Christian and Greek-speaking, to predominantly Muslim and Turkish-speaking (although ethnic groups such as Armenians, Greeks, and Assyrians remained numerous and retained Christianity and their native languages). In the following century, the Byzantines managed to reassert their control in western and northern Anatolia. Control of Anatolia was then split between the Byzantine Empire and the Seljuk Sultanate of Rûm, with the Byzantine holdings gradually being reduced.
thumb|Settlements and regions affected during the first wave of Turkish invasions in Asia Minor (11th–13th century)
In 1255, the Mongols swept through eastern and central Anatolia, and would remain until 1335. The Ilkhanate garrison was stationed near Ankara.H. M. Balyuzi Muḥammad and the course of Islám, p. 342John Freely Storm on Horseback: The Seljuk Warriors of Turkey, p. 83 After the decline of the Ilkhanate from 1335 to 1353, the Mongol Empire's legacy in the region was the Uyghur Eretna Dynasty that was overthrown by Kadi Burhan al-Din in 1381.Clifford Edmund Bosworth-The new Islamic dynasties: a chronological and genealogical manual, p. 234
By the end of the 14th century, most of Anatolia was controlled by various Anatolian beyliks. Smyrna fell in 1330, and the last Byzantine stronghold in Anatolia, Philadelphia, fell in 1390. The Turkmen Beyliks were under the control of the Mongols, at least nominally, through declining Seljuk sultans.Mehmet Fuat Köprülü, Gary Leiser-The origins of the Ottoman Empire, p. 33Peter Partner God of battles: holy wars of Christianity and Islam, p. 122 The Beyliks did not mint coins in the names of their own leaders while they remained under the suzerainty of the Mongol Ilkhanids.Osman's Dream: The History of the Ottoman Empire, p. 13 The Osmanli ruler Osman I was the first Turkish ruler who minted coins in his own name in 1320s; they bear the legend "Minted by Osman son of Ertugrul".Artuk – Osmanli Beyliginin Kurucusu, 27f Since the minting of coins was a prerogative accorded in Islamic practice only to a sovereign, it can be considered that the Osmanli, or Ottoman Turks, had become formally independent from the Mongol Khans.Pamuk – A Monetary History, pp. 30–31 |
Anatolia | Ottoman Empire | Ottoman Empire
thumb|Territorial evolution of the Ottoman Empire between 1359 and 1683
Among the Turkish leaders, the Ottomans emerged as great power under Osman I and his son Orhan. The Anatolian beyliks were successively absorbed into the rising Ottoman Empire during the 15th century. It is not well understood how the Osmanlı, or Ottoman Turks, came to dominate their neighbours, as the history of medieval Anatolia is still little known. The Ottomans completed the conquest of the peninsula in 1517 with the taking of Halicarnassus (modern Bodrum) from the Knights of Saint John. |
Anatolia | Modern times | Modern times
thumb|Ethnic map of Asia Minor in 1905–06
With the acceleration of the decline of the Ottoman Empire in the early 19th century, and as a result of the expansionist policies of the Russian Empire in the Caucasus, many Muslim nations and groups in that region, mainly Circassians, Tatars, Azeris, Lezgis, Chechens and several Turkic groups left their homelands and settled in Anatolia. As the Ottoman Empire further shrank in the Balkan regions and then fragmented during the Balkan Wars, much of the non-Christian populations of its former possessions, mainly Balkan Muslims (Bosniaks, Albanians, Turks, Muslim Bulgarians and Greek Muslims such as the Vallahades from Greek Macedonia), were resettled in various parts of Anatolia, mostly in formerly Christian villages throughout Anatolia.
left|thumb|181x181px|St. Polycarp Church, in modern-day Izmir.
A continuous reverse migration occurred since the early 19th century, when Greeks from Anatolia, Constantinople and Pontus area migrated toward the newly independent Kingdom of Greece, and also towards the United States, the southern part of the Russian Empire, Latin America, and the rest of Europe.
thumb|Mosque in Ankara
Following the Russo-Persian Treaty of Turkmenchay (1828) and the incorporation of Eastern Armenia into the Russian Empire, another migration involved the large Armenian population of Anatolia, which recorded significant migration rates from Western Armenia (Eastern Anatolia) toward the Russian Empire, especially toward its newly established Armenian provinces.
Anatolia remained multi-ethnic until the early 20th century (see the rise of nationalism under the Ottoman Empire). During World War I, the Armenian genocide, the Greek genocide (especially in Pontus), and the Assyrian genocide almost entirely removed the ancient indigenous communities of Armenian, Greek, and Assyrian populations in Anatolia and surrounding regions. Following the Greco-Turkish War of 1919–1922, most remaining ethnic Anatolian Greeks were forced out during the 1923 population exchange between Greece and Turkey. Of the remainder, most have left Turkey since then, leaving fewer than 5,000 Greeks in Anatolia today. According to Morris and Ze'evi, 4 million Christians were ethnically cleansed from Asia minor by the Turks from 1894 to 1924. |
Anatolia | Geology | Geology
thumb|Salty shores of Lake Tuz
Anatolia's terrain is structurally complex. A central massif composed of uplifted blocks and downfolded troughs, covered by recent deposits and giving the appearance of a plateau with rough terrain, is wedged between two folded mountain ranges that converge in the east. True lowland is confined to a few narrow coastal strips along the Aegean, Mediterranean, and the Black Sea coasts. Flat or gently sloping land is rare and largely confined to the deltas of the Kızıl River, the coastal plains of Çukurova and the valley floors of the Gediz River and the Büyük Menderes River as well as some interior high plains in Anatolia, mainly around Lake Tuz (Salt Lake) and the Konya Basin (Konya Ovasi).
There are two mountain ranges in southern Anatolia: the Taurus and the Zagros mountains. |
Anatolia | Climate | Climate
Anatolia has a varied range of climates. The central plateau is characterized by a continental climate, with hot summers and cold snowy winters. The south and west coasts enjoy a typical Mediterranean climate, with mild rainy winters, and warm dry summers. The Black Sea and Marmara coasts have a temperate oceanic climate, with warm, foggy summers and much rainfall throughout the year. |
Anatolia | Ecoregions | Ecoregions
thumb|Mediterranean climate is prevalent in the Turkish Riviera
thumb|Anatolia's dry central plateau
There is a diverse number of plant and animal communities.
The mountains and coastal plain of northern Anatolia experience a humid and mild climate. There are temperate broadleaf, mixed and coniferous forests. The central and eastern plateau, with its drier continental climate, has deciduous forests and forest steppes. Western and southern Anatolia, which have a Mediterranean climate, contain Mediterranean forests, woodlands, and scrub ecoregions.
Euxine-Colchic deciduous forests: These temperate broadleaf and mixed forests extend across northern Anatolia, lying between the mountains of northern Anatolia and the Black Sea. They include the enclaves of temperate rainforest lying along the southeastern coast of the Black Sea in eastern Turkey and Georgia.
Northern Anatolian conifer and deciduous forests: These forests occupy the mountains of northern Anatolia, running east and west between the coastal Euxine-Colchic forests and the drier, continental climate forests of central and eastern Anatolia.
Central Anatolian deciduous forests: These forests of deciduous oaks and evergreen pines cover the plateau of central Anatolia.
Central Anatolian steppe: These dry grasslands cover the drier valleys and surround the saline lakes of central Anatolia, and include halophytic (salt tolerant) plant communities.
thumb|300px|A panorama of the Pontic Mountains in the Black Sea Region of northern Anatolia, Turkey
Eastern Anatolian deciduous forests: This ecoregion occupies the plateau of eastern Anatolia. The drier and more continental climate is beneficial for steppe-forests dominated by deciduous oaks, with areas of shrubland, montane forest, and valley forest.
Anatolian conifer and deciduous mixed forests: These forests occupy the western, Mediterranean-climate portion of the Anatolian plateau. Pine forests and mixed pine and oak woodlands and shrublands are predominant.
Aegean and Western Turkey sclerophyllous and mixed forests: These Mediterranean-climate forests occupy the coastal lowlands and valleys of western Anatolia bordering the Aegean Sea. The ecoregion has forests of Turkish pine (Pinus brutia), oak forests and woodlands, and maquis shrubland of Turkish pine and evergreen sclerophyllous trees and shrubs, including Olive (Olea europaea), Strawberry Tree (Arbutus unedo), Arbutus andrachne, Kermes Oak (Quercus coccifera), and Bay Laurel (Laurus nobilis).
Southern Anatolian montane conifer and deciduous forests: These mountain forests occupy the Mediterranean-climate Taurus Mountains of southern Anatolia. Conifer forests are predominant, chiefly Anatolian black pine (Pinus nigra), Cedar of Lebanon (Cedrus libani), Taurus fir (Abies cilicica), and juniper (Juniperus foetidissima and J. excelsa). Broadleaf trees include oaks, hornbeam, and maples.
Eastern Mediterranean conifer-sclerophyllous-broadleaf forests: This ecoregion occupies the coastal strip of southern Anatolia between the Taurus Mountains and the Mediterranean Sea. Plant communities include broadleaf sclerophyllous maquis shrublands, forests of Aleppo Pine (Pinus halepensis) and Turkish Pine (Pinus brutia), and dry oak (Quercus spp.) woodlands and steppes. |
Anatolia | Demographics | Demographics
The largest cities in Anatolia (aside from the Asian side of Istanbul) are Ankara, İzmir, Bursa, Antalya, Konya, Adana, İzmit, Mersin, Manisa, Kayseri, Samsun, Balıkesir, Kahramanmaraş, Aydın, Adapazarı, Denizli, Muğla, Eskişehir, Trabzon, Ordu, Afyonkarahisar, Sivas, Tokat, Zonguldak, Kütahya, Çanakkale, Osmaniye and Çorum. All have populations of more than 500,000. |
Anatolia | See also | See also
Aeolis
Anatolian hypothesis
Anatolianism
Anatolian leopard
Anatolian Plate
Anatolian Shepherd
Ancient kingdoms of Anatolia
Antigonid dynasty
Doris (Asia Minor)
Empire of Nicaea
Empire of Trebizond
Gordium
Lycaonia
Midas
Miletus
Myra
Pentarchy
Pontic Greeks
Rumi
Saint Anatolia
Saint John
Saint Nicholas
Saint Paul
Seleucid Empire
Seven churches of Asia
Seven Sleepers
Tarsus
Troad
Turkic migration |
Anatolia | Explanatory notes | Explanatory notes |
Anatolia | References | References |
Anatolia | Citations | Citations |
Anatolia | Sources | Sources
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Anatolia | Further reading | Further reading
Akat, Yücel, Neşe Özgünel, and Aynur Durukan. 1991. Anatolia: A World Heritage. Ankara: Kültür Bakanliǧi.
Brewster, Harry. 1993. Classical Anatolia: The Glory of Hellenism. London: I. B. Tauris.
Donbaz, Veysel, and Şemsi Güner. 1995. The Royal Roads of Anatolia. Istanbul: Dünya.
Dusinberre, Elspeth R. M. 2013. Empire, Authority, and Autonomy In Achaemenid Anatolia. Cambridge: Cambridge University Press.
Gates, Charles, Jacques Morin, and Thomas Zimmermann. 2009. Sacred Landscapes In Anatolia and Neighboring Regions. Oxford: Archaeopress.
Mikasa, Takahito, ed. 1999. Essays On Ancient Anatolia. Wiesbaden: Harrassowitz.
Takaoğlu, Turan. 2004. Ethnoarchaeological Investigations In Rural Anatolia. İstanbul: Ege Yayınları.
Taracha, Piotr. 2009. Religions of Second Millennium Anatolia. Wiesbaden: Harrassowitz.
Taymaz, Tuncay, Y. Yilmaz, and Yildirim Dilek. 2007. The Geodynamics of the Aegean and Anatolia. London: Geological Society. |
Anatolia | External links | External links
Category:Ancient Greek geography
Category:Geography of the Middle East
Category:Historical regions in Turkey
Category:Peninsulas of Asia
Category:Peninsulas of Turkey
Category:Physiographic provinces
Category:Regions of Asia
Category:Regions of Turkey
Category:West Asia |
Anatolia | Table of Content | Short description, Geography, Etymology, Names, History, Prehistoric Anatolia, Ancient Anatolia, Hattians and Hurrians, Hittite Anatolia (18th–12th centuries BCE), Post-Hittite Anatolia (12th–6th centuries BCE), Classical Anatolia, Early Christian period, Medieval period, Ottoman Empire, Modern times, Geology, Climate, Ecoregions, Demographics, See also, Explanatory notes, References, Citations, Sources, Further reading, External links |
Apple Inc. | Short description | Apple Inc. is an American multinational corporation and technology company headquartered in Cupertino, California, in Silicon Valley. It is best known for its consumer electronics, software, and services. Founded in 1976 as Apple Computer Company by Steve Jobs, Steve Wozniak and Ronald Wayne, the company was incorporated by Jobs and Wozniak as Apple Computer, Inc. the following year. It was renamed Apple Inc. in 2007 as the company had expanded its focus from computers to consumer electronics. Apple is the largest technology company by revenue, with billion in the 2024 fiscal year.
The company was founded to produce and market Wozniak's Apple I personal computer. Its second computer, the Apple II, became a best seller as one of the first mass-produced microcomputers. Apple introduced the Lisa in 1983 and the Macintosh in 1984, as some of the first computers to use a graphical user interface and a mouse. By 1985, internal company problems led to Jobs leaving to form NeXT, Inc., and Wozniak withdrawing to other ventures; John Sculley served as long-time CEO for over a decade. In the 1990s, Apple lost considerable market share in the personal computer industry to the lower-priced Wintel duopoly of the Microsoft Windows operating system on Intel-powered PC clones. In 1997, Apple was weeks away from bankruptcy. To resolve its failed operating system strategy, it bought NeXT, effectively bringing Jobs back to the company, who guided Apple back to profitability over the next decade with the introductions of the iMac, iPod, iPhone, and iPad devices to critical acclaim as well as the iTunes Store, launching the "Think different" advertising campaign, and opening the Apple Store retail chain. These moves elevated Apple to consistently be one of the world's most valuable brands since about 2010. Jobs resigned in 2011 for health reasons, and died two months later; he was succeeded as CEO by Tim Cook.
Apple's product lineup includes portable and home hardware such as the iPhone, iPad, Apple Watch, Mac, and Apple TV; operating systems such as iOS, iPadOS, and macOS; and various software and services including Apple Pay, iCloud, and multimedia streaming services like Apple Music and Apple TV+. Apple is one of the Big Five American information technology companies; for the most part since 2011, Apple has been the world's largest company by market capitalization, and, , is the largest manufacturing company by revenue, the fourth-largest personal computer vendor by unit sales, the largest vendor of tablet computers, and the largest vendor of mobile phones in the world. Apple became the first publicly traded U.S. company to be valued at over $1 trillion in 2018, and, , is valued at just over $3.74 trillion. Apple is the largest company on the Nasdaq, where it trades under the ticker symbol "AAPL".
Apple has received criticism regarding its contractors' labor practices, its relationship with trade unions, its environmental practices, and its business ethics, including anti-competitive practices and materials sourcing. Nevertheless, the company has a large following and enjoys a high level of brand loyalty. |
Apple Inc. | History | History |
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