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John_von_Neumann | Along with four other scientists and various military personnel, von Neumann was included in the target selection committee responsible for choosing the Japanese cities of Hiroshima and Nagasaki as the first targets of the atomic bomb. Von Neumann oversaw computations related to the expected size of the bomb blasts, estimated death tolls, and the distance above the ground at which the bombs should be detonated for optimum shock wave propagation and thus maximum effect. The cultural capital Kyoto, which had been spared the bombing inflicted upon militarily significant cities, was von Neumann's first choice, a selection seconded by Manhattan Project leader General Leslie Groves. However, this target was dismissed by Secretary of War Henry L. Stimson. | What other people worked with von Neumann on target selection? | 57283dd13acd2414000df7a3 | four other scientists and various military personnel | 11 | null | -1 | false |
51st_state | There are four categories of terra nullius, land that is unclaimed by any state: the small unclaimed territory of Bir Tawil between Egypt and Sudan, Antarctica, the oceans, and celestial bodies such as the Moon or Mars. In the last three of these, international treaties (the Antarctic Treaty, the United Nations Convention on the Law of the Sea, and the Outer Space Treaty respectively) prevent colonization and potential statehood of any of these uninhabited (and, given current technology, not permanently inhabitable) territories. | What are the four categories of terra nullius? | 573078ee069b531400832103 | the small unclaimed territory of Bir Tawil between Egypt and Sudan, Antarctica, the oceans, and celestial bodies | 81 | null | -1 | false |
Nanjing | According to the Sixth China Census, the total population of the City of Nanjing reached 8.005 million in 2010. The statistics in 2011 estimated the total population to be 8.11 million. The birth rate was 8.86 percent and the death rate was 6.88 percent. The urban area had a population of 6.47 million people. The sex ratio of the city population was 107.31 males to 100 females. | What was the estimated population of Nanjing in 2011? | 56e7a0d637bdd419002c428d | 8.11 million | 172 | null | -1 | false |
PlayStation_3 | What's New was announced at Gamescom 2009 and was released on September 1, 2009, with PlayStation 3 system software 3.0. The feature was to replace the existing [Information Board], which displayed news from the PlayStation website associated with the user's region. The concept was developed further into a major PlayStation Network feature, which interacts with the [Status Indicator] to display a ticker of all content, excluding recently played content (currently in North America and Japan only). | At what event did Sony cancel What's New? | 5ad346a8604f3c001a3fdc6c | null | -1 | Gamescom | 28 | true |
Genome | The term was created in 1920 by Hans Winkler, professor of botany at the University of Hamburg, Germany. The Oxford Dictionary suggests the name to be a blend of the words gene and chromosome. However, see omics for a more thorough discussion. A few related -ome words already existed—such as biome, rhizome, forming a vocabulary into which genome fits systematically. | Who coined the word genome? | 56dc54a514d3a41400c267c5 | Hans Winkler | 32 | null | -1 | false |
Anthropology | Anthropology of development tends to view development from a critical perspective. The kind of issues addressed and implications for the approach simply involve pondering why, if a key development goal is to alleviate poverty, is poverty increasing? Why is there such a gap between plans and outcomes? Why are those working in development so willing to disregard history and the lessons it might offer? Why is development so externally driven rather than having an internal basis? In short why does so much planned development fail? | What does a lot of planned development apparently do? | 5733cd1c4776f4190066127e | fail | 527 | null | -1 | false |
The_Bronx | The Bronx is the home of the New York Yankees of Major League Baseball. The original Yankee Stadium opened in 1923 on 161st Street and River Avenue, a year that saw the Yankees bring home their first of 27 World Series Championships. With the famous facade, the short right field porch and Monument Park, Yankee Stadium has been home to many of baseball's greatest players including Babe Ruth, Lou Gehrig, Joe DiMaggio, Whitey Ford, Yogi Berra, Mickey Mantle, Reggie Jackson, Derek Jeter and Mariano Rivera. | Which historic great players have played at Yankee Stadium? | 5732674b0fdd8d15006c6a9a | Babe Ruth, Lou Gehrig, Joe DiMaggio, Whitey Ford, Yogi Berra, Mickey Mantle, Reggie Jackson, Derek Jeter and Mariano Rivera | 383 | null | -1 | false |
Nonprofit_organization | Instead of being defined by "non" words, some organizations are suggesting new, positive-sounding terminology to describe the sector. The term "civil society organization" (CSO) has been used by a growing number of organizations, such as the Center for the Study of Global Governance. The term "citizen sector organization" (CSO) has also been advocated to describe the sector – as one of citizens, for citizens – by organizations such as Ashoka: Innovators for the Public. A more broadly applicable term, "Social Benefit Organization" (SBO) has been advocated for by organizations such as MiniDonations. Advocates argue that these terms describe the sector in its own terms, without relying on terminology used for the government or business sectors. However, use of terminology by a nonprofit of self-descriptive language that is not legally compliant risks confusing the public about nonprofit abilities, capabilities and limitations. | What term does Ashoka: Innovators for the Public support as more broadly used? | 5a45ae7c19a820001a1edafe | null | -1 | "Social Benefit Organization" | 506 | true |
Planck_constant | Classical statistical mechanics requires the existence of h (but does not define its value). Eventually, following upon Planck's discovery, it was recognized that physical action cannot take on an arbitrary value. Instead, it must be some multiple of a very small quantity, the "quantum of action", now called the Planck constant. Classical physics cannot explain this fact. In many cases, such as for monochromatic light or for atoms, this quantum of action also implies that only certain energy levels are allowed, and values in between are forbidden. | For certain cases of light or atoms, what does the quantum of action yield? | 57295eef6aef051400154da1 | only certain energy levels are allowed, and values in between are forbidden. | 477 | null | -1 | false |
Computer | The differential analyser, a mechanical analog computer designed to solve differential equations by integration, used wheel-and-disc mechanisms to perform the integration. In 1876 Lord Kelvin had already discussed the possible construction of such calculators, but he had been stymied by the limited output torque of the ball-and-disk integrators. In a differential analyzer, the output of one integrator drove the input of the next integrator, or a graphing output. The torque amplifier was the advance that allowed these machines to work. Starting in the 1920s, Vannevar Bush and others developed mechanical differential analyzers. | During what decade were mechanical differential analyzers developed? | 56fdcadf761e401900d28c03 | 1920s | 557 | null | -1 | false |
Antenna_(radio) | It is possible to use the impedance matching concepts to construct vertical antennas substantially shorter than the 1⁄4 wavelength at which the antenna is resonant. By adding an inductance in series with the antenna, a so-called loading coil, the capacitive reactance of this antenna can be cancelled leaving a pure resistance which can then be matched to the transmission line. Sometimes the resulting resonant frequency of such a system (antenna plus matching network) is described using the construct of electrical length and the use of a shorter antenna at a lower frequency than its resonant frequency is termed electrical lengthening. | What could be coupled with an antenna to form pure resistance? | 572ff30304bcaa1900d76f12 | inductance | 178 | null | -1 | false |
Computer | Devices have been used to aid computation for thousands of years, mostly using one-to-one correspondence with fingers. The earliest counting device was probably a form of tally stick. Later record keeping aids throughout the Fertile Crescent included calculi (clay spheres, cones, etc.) which represented counts of items, probably livestock or grains, sealed in hollow unbaked clay containers. The use of counting rods is one example. | Calculi during the Fertile Crescent refers to what? | 56fdc60e19033b140034cd68 | (clay spheres, cones, etc.) | 259 | null | -1 | false |
Josip_Broz_Tito | Josip Broz was born on 7 May 1892 in Kumrovec, in the northern Croatian region of Hrvatsko Zagorje in Austria-Hungary.[nb 1] He was the seventh child of Franjo and Marija Broz. His father, Franjo Broz (26 November 1860 – 16 December 1936), was a Croat, while his mother Marija (25 March 1864 – 14 January 1918), was a Slovene. His parents were married on 21 January 1891. After spending part of his childhood years with his maternal grandfather Martin Javeršek in the Slovenian village of Podsreda, he entered primary school in 1900 at Kumrovec, he failed the 2nd grade and graduated in 1905. In 1907 he moved out of the rural environment and started working as a machinist's apprentice in Sisak. There, he became aware of the labour movement and celebrated 1 May – Labour Day for the first time. In 1910, he joined the union of metallurgy workers and at the same time the Social-Democratic Party of Croatia and Slavonia. Between 1911 and 1913, Broz worked for shorter periods in Kamnik (1911–1912, factory "Titan"), Cenkov, Munich and Mannheim, where he worked for the Benz car factory; then he went to Wiener Neustadt, Austria, and worked as a test driver for Daimler. | What ethnicity was Broz's father? | 56f7165e3d8e2e1400e37338 | Croat | 246 | null | -1 | false |
Tibet | Tibet has some of the world's tallest mountains, with several of them making the top ten list. Mount Everest, located on the border with Nepal, is, at 8,848 metres (29,029 ft), the highest mountain on earth. Several major rivers have their source in the Tibetan Plateau (mostly in present-day Qinghai Province). These include the Yangtze, Yellow River, Indus River, Mekong, Ganges, Salween and the Yarlung Tsangpo River (Brahmaputra River). The Yarlung Tsangpo Grand Canyon, along the Yarlung Tsangpo River, is among the deepest and longest canyons in the world. | What rivers have their source in the Yangtze Plateau? | 5acff5ec77cf76001a686651 | null | -1 | Yellow River, Indus River, Mekong, Ganges, Salween and the Yarlung Tsangpo River (Brahmaputra River) | 339 | true |
Royal_Dutch_Shell | In the beginning of 1996, several human rights groups brought cases to hold Shell accountable for alleged human rights violations in Nigeria, including summary execution, crimes against humanity, torture, inhumane treatment and arbitrary arrest and detention. In particular, Shell stood accused of collaborating in the execution of Ken Saro-Wiwa and eight other leaders of the Ogoni tribe of southern Nigeria, who were hanged in 1995 by Nigeria's then military rulers. The lawsuits were brought against Royal Dutch Shell and Brian Anderson, the head of its Nigerian operation. In 2009, Shell agreed to pay $15.5m in a legal settlement. Shell has not accepted any liability over the allegations against it. | How much did Shell pay to the Ogoni tribe? | 5a6293e0f8d794001af1c10f | null | -1 | $15.5m | 606 | true |
Federal_Bureau_of_Investigation | The FBI's chief tool against organized crime is the Racketeer Influenced and Corrupt Organizations (RICO) Act. The FBI is also charged with the responsibility of enforcing compliance of the United States Civil Rights Act of 1964 and investigating violations of the act in addition to prosecuting such violations with the United States Department of Justice (DOJ). The FBI also shares concurrent jurisdiction with the Drug Enforcement Administration (DEA) in the enforcement of the Controlled Substances Act of 1970. | What is not required to enforce compliance with the United States Civil Rights Act of 1964? | 5ad394ee604f3c001a3fe729 | null | -1 | FBI | 115 | true |
John_von_Neumann | In a number of von Neumann's papers, the methods of argument he employed are considered even more significant than the results. In anticipation of his later study of dimension theory in algebras of operators, von Neumann used results on equivalence by finite decomposition, and reformulated the problem of measure in terms of functions. In his 1936 paper on analytic measure theory, he used the Haar theorem in the solution of Hilbert's fifth problem in the case of compact groups. In 1938, he was awarded the Bôcher Memorial Prize for his work in analysis. | What is often considered more important than the results of von Neumann's papers? | 5728230b4b864d1900164540 | methods of argument he employed | 41 | null | -1 | false |
Seattle | Seattle's population historically has been predominantly white. The 2010 census showed that Seattle was one of the whitest big cities in the country, although its proportion of white residents has been gradually declining. In 1960, whites comprised 91.6% of the city's population, while in 2010 they comprised 69.5%. According to the 2006–2008 American Community Survey, approximately 78.9% of residents over the age of five spoke only English at home. Those who spoke Asian languages other than Indo-European languages made up 10.2% of the population, Spanish was spoken by 4.5% of the population, speakers of other Indo-European languages made up 3.9%, and speakers of other languages made up 2.5%. | According to the 2010 census, what was the white population in Seattle? | 5719fc7710f8ca1400304eca | 69.5% | 310 | null | -1 | false |
Miami | The surface bedrock under the Miami area is called Miami oolite or Miami limestone. This bedrock is covered by a thin layer of soil, and is no more than 50 feet (15 m) thick. Miami limestone formed as the result of the drastic changes in sea level associated with recent glaciations or ice ages. Beginning some 130,000 years ago the Sangamonian Stage raised sea levels to approximately 25 feet (8 m) above the current level. All of southern Florida was covered by a shallow sea. Several parallel lines of reef formed along the edge of the submerged Florida plateau, stretching from the present Miami area to what is now the Dry Tortugas. The area behind this reef line was in effect a large lagoon, and the Miami limestone formed throughout the area from the deposition of oolites and the shells of bryozoans. Starting about 100,000 years ago the Wisconsin glaciation began lowering sea levels, exposing the floor of the lagoon. By 15,000 years ago, the sea level had dropped to 300 to 350 feet (90 to 110 m) below the contemporary level. The sea level rose quickly after that, stabilizing at the current level about 4000 years ago, leaving the mainland of South Florida just above sea level. | What event caused sea levels to decrease approximately 100,000 years ago? | 572a72f97a1753140016af8a | Wisconsin glaciation | 847 | null | -1 | false |
Great_power | Of the five original great powers recognised at the Congress of Vienna, only France and the United Kingdom have maintained that status continuously to the present day, although France was defeated in the Franco-Prussian War and occupied during World War II. After the Congress of Vienna, the British Empire emerged as the pre-eminent power, due to its navy and the extent of its territories, which signalled the beginning of the Pax Britannica and of the Great Game between the UK and Russia. The balance of power between the Great Powers became a major influence in European politics, prompting Otto von Bismarck to say "All politics reduces itself to this formula: try to be one of three, as long as the world is governed by the unstable equilibrium of five great powers." | What country lost Franco-Prussian war? | 573106b7497a881900248b08 | France | 177 | null | -1 | false |
Sony_Music_Entertainment | Columbia founded Epic Records in 1953. In 1956, Conkling left Columbia, he would help establish the National Academy of Recording Arts and Sciences before eventually becoming the first president of the newly launched Warner Bros. Records, and Goddard Lieberson began the first of two stints as head of the record company. In 1958, Columbia founded another label, Date Records, which initially issued rockabilly music. | In what year was Epic Records created? | 56df13fdc65bf219000b3f3f | 1953 | 33 | null | -1 | false |
Pub | There was already regulation on public drinking spaces in the 17th and 18th centuries,[citation needed] and the income earned from licences was beneficial to the crown. Tavern owners were required to possess a licence to sell ale, and a separate licence for distilled spirits. | What party received income from the sale of public drinking house licenses? | 56dfc0887aa994140058e11f | the crown | 158 | null | -1 | false |
Friedrich_Hayek | Some socialists such as H. D. Dickinson and Oskar Lange, responded by invoking general equilibrium theory, which they argued disproved Mises's thesis. They noted that the difference between a planned and a free market system lay in who was responsible for solving the equations. They argued, if some of the prices chosen by socialist managers were wrong, gluts or shortages would appear, signalling them to adjust the prices up or down, just as in a free market. Through such a trial and error, a socialist economy could mimic the efficiency of a free market system, while avoiding its many problems. | According to those who argued against Hayek, what sets planned and free markets apart is what? | 572a72e474f2e11900503faf | who was responsible for solving the equations | 232 | null | -1 | false |
The_Bronx | The City of New York has an official television station run by the NYC Media Group and broadcasting from Bronx Community College, and Cablevision operates News 12 The Bronx, both of which feature programming based in the Bronx. Co-op City was the first area in the Bronx, and the first in New York beyond Manhattan, to have its own cable television provider. The local public-access television station BronxNet originates from Herbert H. Lehman College, the borough's only four year CUNY school, and provides government-access television (GATV) public affairs programming in addition to programming produced by Bronx residents. | Where is the official city TV station broadcast from? | 57326b79e17f3d1400422973 | Bronx Community College | 105 | null | -1 | false |
Dog | The majority of contemporary people with dogs describe their pet as part of the family, although some ambivalence about the relationship is evident in the popular reconceptualization of the dog–human family as a pack. A dominance model of dog–human relationships has been promoted by some dog trainers, such as on the television program Dog Whisperer. However it has been disputed that "trying to achieve status" is characteristic of dog–human interactions. Pet dogs play an active role in family life; for example, a study of conversations in dog–human families showed how family members use the dog as a resource, talking to the dog, or talking through the dog, to mediate their interactions with each other. | Most people today describe their dogs as what? | 56d9cb52dc89441400fdb83c | part of the family | 68 | null | -1 | false |
Post-punk | At the turn of the 21st century, a post-punk revival developed in British and American alternative and indie rock, which soon started appearing in other countries, as well. The earliest sign of a revival was the emergence of various underground bands in the mid-'90s. However, the first commercially successful bands – the Strokes, Franz Ferdinand, Interpol, Neils Children and Editors – surfaced in the late 1990s to early 2000s, as did several dance-oriented bands such as the Rapture, Radio 4 and LCD Soundsystem. Additionally, some darker post-punk bands began to appear in the indie music scene in the 2010s, including Cold Cave, She Wants Revenge, Eagulls, the Soft Moon, She Past Away and Light Asylum, who were also affiliated with the darkwave revival, as well as A Place to Bury Strangers, who combined early post-punk and shoegaze. These bands tend to draw a fanbase who are a combination of the indie music subculture, older post-punk fans and the current goth subculture. In the 2010s, Savages played a music reminiscent of early British post-punk bands of the late '70s. | When did some of the darker post-punk bands start to appear in the indie scene? | 572ee844c246551400ce479e | the 2010s | 603 | null | -1 | false |
Genocide | Slobodan Milošević, as the former President of Serbia and of Yugoslavia, was the most senior political figure to stand trial at the ICTY. He died on 11 March 2006 during his trial where he was accused of genocide or complicity in genocide in territories within Bosnia and Herzegovina, so no verdict was returned. In 1995, the ICTY issued a warrant for the arrest of Bosnian Serbs Radovan Karadžić and Ratko Mladić on several charges including genocide. On 21 July 2008, Karadžić was arrested in Belgrade, and he is currently in The Hague on trial accused of genocide among other crimes. Ratko Mladić was arrested on 26 May 2011 by Serbian special police in Lazarevo, Serbia. Karadzic was convicted of ten of the eleven charges laid against him and sentenced to 40 years in prison on March 24 2016. | Had Karadzic not died, what charges might he have been convicted of? | 5a69b6005ce1a5001a9696ab | null | -1 | genocide or complicity in genocide | 204 | true |
Human_Development_Index | Economists Hendrik Wolff, Howard Chong and Maximilian Auffhammer discuss the HDI from the perspective of data error in the underlying health, education and income statistics used to construct the HDI. They identified three sources of data error which are due to (i) data updating, (ii) formula revisions and (iii) thresholds to classify a country’s development status and conclude that 11%, 21% and 34% of all countries can be interpreted as currently misclassified in the development bins due to the three sources of data error, respectively. The authors suggest that the United Nations should discontinue the practice of classifying countries into development bins because - they claim - the cut-off values seem arbitrary, can provide incentives for strategic behavior in reporting official statistics, and have the potential to misguide politicians, investors, charity donors and the public who use the HDI at large.[citation needed] In 2010 the UNDP reacted to the criticism and updated the thresholds to classify nations as low, medium, and high human development countries. In a comment to The Economist in early January 2011, the Human Development Report Office responded to a January 6, 2011 article in the magazine which discusses the Wolff et al. paper. The Human Development Report Office states that they undertook a systematic revision of the methods used for the calculation of the HDI and that the new methodology directly addresses the critique by Wolff et al. in that it generates a system for continuous updating of the human development categories whenever formula or data revisions take place. | In what year did the ULNDP respond to the criticism of its report? | 5ad0d4d2645df0001a2d060d | null | -1 | 2010 | 940 | true |
Vacuum | Evaporation and sublimation into a vacuum is called outgassing. All materials, solid or liquid, have a small vapour pressure, and their outgassing becomes important when the vacuum pressure falls below this vapour pressure. In man-made systems, outgassing has the same effect as a leak and can limit the achievable vacuum. Outgassing products may condense on nearby colder surfaces, which can be troublesome if they obscure optical instruments or react with other materials. This is of great concern to space missions, where an obscured telescope or solar cell can ruin an expensive mission. | What can solar cells limit the achievement of? | 5a87bcd31d3cee001a6a1333 | null | -1 | vacuum | 315 | true |
Post-punk | In late 1977, music writers for Sounds first used the terms "New Musick" and "post punk" to describe British acts such as Siouxsie and the Banshees and Wire, who began experimenting with sounds, lyrics and aesthetics that differed significantly from their punk contemporaries. Writer Jon Savage described some of these early developments as exploring "harsh urban scrapings [,] controlled white noise" and "massively accented drumming". In January 1978, singer John Lydon (then known as Johnny Rotten) announced the break-up of his pioneering punk band the Sex Pistols, citing his disillusionment with punk's musical predictability and cooption by commercial interests, as well as his desire to explore more diverse interests. | Who connsidered post-punk "harsh urban scrapings [,] controlled white noise" and "massively accented drumming"? | 572f5b9da23a5019007fc592 | Jon Savage | 284 | null | -1 | false |
Architecture | In Renaissance Europe, from about 1400 onwards, there was a revival of Classical learning accompanied by the development of Renaissance Humanism which placed greater emphasis on the role of the individual in society than had been the case during the Medieval period. Buildings were ascribed to specific architects – Brunelleschi, Alberti, Michelangelo, Palladio – and the cult of the individual had begun. There was still no dividing line between artist, architect and engineer, or any of the related vocations, and the appellation was often one of regional preference. | What three vocations were not really considered separate from each other at that time? | 56e48c5d39bdeb1400347986 | artist, architect and engineer | 447 | null | -1 | false |
Greeks | The Eastern Roman Empire – today conventionally named the Byzantine Empire, a name not in use during its own time – became increasingly influenced by Greek culture after the 7th century, when Emperor Heraclius (AD 575 - 641) decided to make Greek the empire's official language. Certainly from then on, but likely earlier, the Roman and Greek cultures were virtually fused into a single Greco-Roman world. Although the Latin West recognized the Eastern Empire's claim to the Roman legacy for several centuries, after Pope Leo III crowned Charlemagne, king of the Franks, as the "Roman Emperor" on 25 December 800, an act which eventually led to the formation of the Holy Roman Empire, the Latin West started to favour the Franks and began to refer to the Eastern Roman Empire largely as the Empire of the Greeks (Imperium Graecorum). | What made the Eastern Empire be known as the non-Imperium Graecorum? | 5ad27f75d7d075001a429773 | null | -1 | Pope Leo III | 517 | true |
Age_of_Enlightenment | In the mid-18th century, Paris became the center of an explosion of philosophic and scientific activity challenging traditional doctrines and dogmas. The philosophic movement was led by Voltaire and Jean-Jacques Rousseau, who argued for a society based upon reason rather than faith and Catholic doctrine, for a new civil order based on natural law, and for science based on experiments and observation. The political philosopher Montesquieu introduced the idea of a separation of powers in a government, a concept which was enthusiastically adopted by the authors of the United States Constitution. While the Philosophes of the French Enlightenment were not revolutionaries, and many were members of the nobility, their ideas played an important part in undermining the legitimacy of the Old Regime and shaping the French Revolution. | Who were the two leaders of Paris' philosophic movement? | 57109e32b654c5140001f9ce | Voltaire and Jean-Jacques Rousseau | 186 | null | -1 | false |
Neolithic | The Neolithic 1 (PPNA) period began roughly 10,000 years ago in the Levant. A temple area in southeastern Turkey at Göbekli Tepe dated around 9,500 BC may be regarded as the beginning of the period. This site was developed by nomadic hunter-gatherer tribes, evidenced by the lack of permanent housing in the vicinity and may be the oldest known human-made place of worship. At least seven stone circles, covering 25 acres (10 ha), contain limestone pillars carved with animals, insects, and birds. Stone tools were used by perhaps as many as hundreds of people to create the pillars, which might have supported roofs. Other early PPNA sites dating to around 9,500 to 9,000 BCE have been found in Jericho, Israel (notably Ain Mallaha, Nahal Oren, and Kfar HaHoresh), Gilgal in the Jordan Valley, and Byblos, Lebanon. The start of Neolithic 1 overlaps the Tahunian and Heavy Neolithic periods to some degree.[citation needed] | Who built the Göbekli Tepe temple? | 572a1b2caf94a219006aa7f1 | nomadic hunter-gatherer tribes | 226 | null | -1 | false |
Galicia_(Spain) | The interior of Galicia is characterized by its hilly landscape, although mountain ranges rise to 2,000 m (6,600 ft) in the east and south. The coastal areas are mostly an alternate series of rías (submerged valleys where the sea penetrates tens of kilometres inland) and cliffs. The climate of Galicia is temperate and rainy, but it is also markedly drier in the summer, being usually classified as Oceanic in the west and north, and Mediterranean in the southeast. Its topographic and climatic conditions have made animal husbandry and farming the primary source of Galicia's wealth for most of its history. With the exception of shipbuilding and food processing, Galicia was largely a semi-subsistence farming and fishing economy and did not experience significant industrialization until after the mid-20th century. In 2012, the gross domestic product at purchasing power parity was €56,000 million, with a nominal GDP per capita of €20,700. The population is largely concentrated in two coastal areas: from Ferrol to A Coruña in the northwest and from Pontevedra to Vigo in the southwest. To a lesser extent, there are smaller populations around the interior cities of Lugo, Ourense and Santiago de Compostela. The political capital is Santiago de Compostela, in the province of A Coruña. Vigo, in the province of Pontevedra, is the most populous municipality with 294,997 (2014), while A Coruña is the most populous city with 215.227 (2014). | Name its northwestern coastal area. | 5727a5aa4b864d1900163954 | Ferrol to A Coruña | 1,012 | null | -1 | false |
Seattle | Seattle was also the home base of impresario Alexander Pantages who, starting in 1902, opened a number of theaters in the city exhibiting vaudeville acts and silent movies. His activities soon expanded, and the thrifty Greek went on and became one of America's greatest theater and movie tycoons. Between Pantages and his rival John Considine, Seattle was for a while the western United States' vaudeville mecca. B. Marcus Priteca, the Scottish-born and Seattle-based architect, built several theaters for Pantages, including some in Seattle. The theaters he built for Pantages in Seattle have been either demolished or converted to other uses, but many other theaters survive in other cities of the U.S., often retaining the Pantages name; Seattle's surviving Paramount Theatre, on which he collaborated, was not a Pantages theater. | When did Pantages open his movie houses? | 5719d0c810f8ca1400304e7a | 1902 | 81 | null | -1 | false |
Emotion | Phillip Bard contributed to the theory with his work on animals. Bard found that sensory, motor, and physiological information all had to pass through the diencephalon (particularly the thalamus), before being subjected to any further processing. Therefore, Cannon also argued that it was not anatomically possible for sensory events to trigger a physiological response prior to triggering conscious awareness and emotional stimuli had to trigger both physiological and experiential aspects of emotion simultaneously. | Along with sensory and motor information, what information had to pass through the diencephalon after being processed? | 5ad247a4d7d075001a428b3d | null | -1 | physiological | 101 | true |
Textual_criticism | While textual criticism developed into a discipline of thorough analysis of the Bible — both the Hebrew Bible and the New Testament — scholars also use it to determine the original content of classic texts, such as Plato's Republic. There are far fewer witnesses to classical texts than to the Bible, so scholars can use stemmatics and, in some cases, copy text editing. However, unlike the New Testament where the earliest witnesses are within 200 years of the original, the earliest existing manuscripts of most classical texts were written about a millennium after their composition. All things being equal, textual scholars expect that a larger time gap between an original and a manuscript means more changes in the text. | Does the Bible or Plato's Republic have more witnesses? | 5727a8e9ff5b5019007d9218 | There are far fewer witnesses to classical texts than to the Bible | 233 | null | -1 | false |
Antarctica | Researchers include biologists, geologists, oceanographers, physicists, astronomers, glaciologists, and meteorologists. Geologists tend to study plate tectonics, meteorites from outer space, and resources from the breakup of the supercontinent Gondwana. Glaciologists in Antarctica are concerned with the study of the history and dynamics of floating ice, seasonal snow, glaciers, and ice sheets. Biologists, in addition to examining the wildlife, are interested in how harsh temperatures and the presence of people affect adaptation and survival strategies in a wide variety of organisms. Medical physicians have made discoveries concerning the spreading of viruses and the body's response to extreme seasonal temperatures. Astrophysicists at Amundsen–Scott South Pole Station study the celestial dome and cosmic microwave background radiation. Many astronomical observations are better made from the interior of Antarctica than from most surface locations because of the high elevation, which results in a thin atmosphere; low temperature, which minimizes the amount of water vapour in the atmosphere; and absence of light pollution, thus allowing for a view of space clearer than anywhere else on Earth. Antarctic ice serves as both the shield and the detection medium for the largest neutrino telescope in the world, built 2 km (1.2 mi) below Amundsen–Scott station. | Who is interested in the effects of harsh environment on humans? | 570e1f340dc6ce1900204dcb | Biologists | 397 | null | -1 | false |
Seven_Years%27_War | The Hanoverian king George II of Great Britain was passionately devoted to his family’s continental holdings, but his commitments in Germany were counterbalanced by the demands of the British colonies overseas. If war against France for colonial expansion was to be resumed, then Hanover had to be secured against Franco-Prussian attack. France was very much interested in colonial expansion and was willing to exploit the vulnerability of Hanover in war against Great Britain, but it had no desire to divert forces to central Europe for Prussia's interest. | What was Britain's obligation to Hanover if colonial expansion via war with France was to be resumed? | 572e8e84dfa6aa1500f8d123 | Hanover had to be secured against Franco-Prussian attack | 280 | null | -1 | false |
Somerset | Hinkley Point C nuclear power station is a project to construct a 3,200 MW two reactor nuclear power station. On 18 October 2010, the British government announced that Hinkley Point – already the site of the disused Hinkley Point A and the still operational Hinkley Point B power stations – was one of the eight sites it considered suitable for future nuclear power stations. NNB Generation Company, a subsidiary of EDF, submitted an application for development consent to the Infrastructure Planning Commission on 31 October 2011. A protest group, Stop Hinkley, was formed to campaign for the closure of Hinkley Point B and oppose any expansion at the Hinkley Point site. In December 2013, the European Commission opened an investigation to assess whether the project breaks state-aid rules. On 8 October 2014 it was announced that the European Commission has approved the project, with an overwhelming majority and only four commissioners voting against the decision. | What was Stop Hinkley | 5726aa10708984140094cd56 | Stop Hinkley, was formed to campaign for the closure of Hinkley Point B and oppose any expansion at the Hinkley Point site | 549 | null | -1 | false |
Dissolution_of_the_Soviet_Union | This liberalization, however, fostered nationalist movements and ethnic disputes within the Soviet Union. It also led indirectly to the revolutions of 1989, in which Soviet-imposed communist regimes of the Warsaw Pact were peacefully toppled (Romania excepted), which in turn increased pressure on Gorbachev to introduce greater democracy and autonomy for the Soviet Union's constituent republics. Under Gorbachev's leadership, the Communist Party of the Soviet Union in 1989 introduced limited competitive elections to a new central legislature, the Congress of People's Deputies (although the ban on other political parties was not lifted until 1990). | In which country did Warsaw Pact regime remain in place? | 57277a72708984140094deb2 | Romania | 243 | null | -1 | false |
Gramophone_record | In some ways similar to the laser turntable is the IRENE scanning machine for disc records, which images with microphotography in two dimensions, invented by a team of physicists at Lawrence Berkeley Laboratories. IRENE will retrieve the information from a laterally modulated monaural grooved sound source without touching the medium itself, but cannot read vertically modulated information. This excludes grooved recordings such as cylinders and some radio transcriptions that feature a hill-and-dale format of recording, and stereophonic or quadraphonic grooved recordings, which utilize a combination of the two as well as supersonic encoding for quadraphonic. | Where was IRENE developed? | 5727ce6e3acd2414000decde | Lawrence Berkeley Laboratories | 182 | null | -1 | false |
Eton_College | In the run-up to the London 2012 Summer Olympic Games and London 2012 Summer Paralympic Games, Eton's purpose-built Dorney Lake, a permanent, eight-lane, 2,200 metre course (about 1.4 miles) in a 400-acre park, officially known throughout the Games as Eton Dorney, provided training facilities for Olympic and Paralympic competitors, and during the Games, hosted the Olympic and Paralympic Rowing competitions as well as the Olympic Canoe Sprint event, attracting over 400,000 visitors during the Games period (around 30,000 per day), and voted the best 2012 Olympic venue by spectators. Access to the 400-acre parkland around the Lake is provided to members of the public, free of charge, almost all the year round. | How much property does Eton own? | 5ad205ffd7d075001a428206 | null | -1 | 400-acre | 196 | true |
Glass | In 2004, NIST researchers presented evidence that an isotropic non-crystalline metallic phase (dubbed "q-glass") could be grown from the melt. This phase is the first phase, or "primary phase," to form in the Al-Fe-Si system during rapid cooling. Interestingly, experimental evidence indicates that this phase forms by a first-order transition. Transmission electron microscopy (TEM) images show that the q-glass nucleates from the melt as discrete particles, which grow spherically with a uniform growth rate in all directions. The diffraction pattern shows it to be an isotropic glassy phase. Yet there is a nucleation barrier, which implies an interfacial discontinuity (or internal surface) between the glass and the melt. | What is diffraction? | 5a671646f038b7001ab0c1d2 | null | -1 | an isotropic non-crystalline metallic phase | 50 | true |
Supreme_court | Spanish Supreme Court is the highest court for all cases in Spain (both private and public). Only those cases related to human rights can be appealed at the Constitutional Court (which also decides about acts accordance with Spanish Constitution).
In Spain, high courts cannot create binding precedents; however, lower rank courts usually observe Supreme Court interpretations. In most private law cases, two Supreme Court judgements supporting a claim are needed to appeal at the Supreme Court.
Five sections form the Spanish Supreme court: | What do lower rank courts always observe? | 5a7fc1f48f0597001ac000a6 | null | -1 | Supreme Court interpretations | 347 | true |
Federalism | In almost all federations the central government enjoys the powers of foreign policy and national defense as exclusive federal powers. Were this not the case a federation would not be a single sovereign state, per the UN definition. Notably, the states of Germany retain the right to act on their own behalf at an international level, a condition originally granted in exchange for the Kingdom of Bavaria's agreement to join the German Empire in 1871. Beyond this the precise division of power varies from one nation to another. The constitutions of Germany and the United States provide that all powers not specifically granted to the federal government are retained by the states. The Constitution of some countries like Canada and India, on the other hand, state that powers not explicitly granted to the provincial governments are retained by the federal government. Much like the US system, the Australian Constitution allocates to the Federal government (the Commonwealth of Australia) the power to make laws about certain specified matters which were considered too difficult for the States to manage, so that the States retain all other areas of responsibility. Under the division of powers of the European Union in the Lisbon Treaty, powers which are not either exclusively of European competence or shared between EU and state as concurrent powers are retained by the constituent states. | In nearly all federalism countries, central powers enjoy what? | 5728498d3acd2414000df8a1 | the powers of foreign policy and national defense as exclusive federal powers | 56 | null | -1 | false |
Genome | New sequencing technologies, such as massive parallel sequencing have also opened up the prospect of personal genome sequencing as a diagnostic tool, as pioneered by Manteia Predictive Medicine. A major step toward that goal was the completion in 2007 of the full genome of James D. Watson, one of the co-discoverers of the structure of DNA. | Who pioneered using the DNA structure as a diagnostic tool? | 5a5939ce3e1742001a15d02a | null | -1 | Manteia Predictive Medicine | 166 | true |
United_States_Army | The Pentagon bought 25,000 MRAP vehicles since 2007 in 25 variants through rapid acquisition with no long-term plans for the platforms. The Army plans to divest 7,456 vehicles and retain 8,585. Of the total number of vehicles the Army will keep, 5,036 will be put in storage, 1,073 will be used for training, and the remainder will be spread across the active force. The Oshkosh M-ATV will be kept the most at 5,681 vehicles, as it is smaller and lighter than other MRAPs for off-road mobility. The other most retained vehicle will be the Navistar MaxxPro Dash with 2,633 vehicles, plus 301 Maxxpro ambulances. Thousands of other MRAPs like the Cougar, BAE Caiman, and larger MaxxPros will be disposed of. | How many vehicles does the Army plan on not using for training? | 5aceda0232bba1001ae4b761 | null | -1 | 1,073 | 276 | true |
Presbyterianism | Among the paleo-orthodox and emerging church movements in Protestant and evangelical churches, in which some Presbyterians are involved, clergy are moving away from the traditional black Geneva gown to such vestments as the alb and chasuble, but also cassock and surplice (typically a full length Old English style surplice which resembles the Celtic alb, an ungirdled liturgical tunic of the old Gallican Rite), which some, particularly those identifying with the Liturgical Renewal Movement, hold to be more ancient and representative of a more ecumenical past. | Clergy are moving away from the alb and toward what? | 5acfca3f77cf76001a685fde | null | -1 | black Geneva gown | 181 | true |
Transistor | The bipolar junction transistor (BJT) was the most commonly used transistor in the 1960s and 70s. Even after MOSFETs became widely available, the BJT remained the transistor of choice for many analog circuits such as amplifiers because of their greater linearity and ease of manufacture. In integrated circuits, the desirable properties of MOSFETs allowed them to capture nearly all market share for digital circuits. Discrete MOSFETs can be applied in transistor applications, including analog circuits, voltage regulators, amplifiers, power transmitters and motor drivers. | What are some applications of discrete MOSFETs? | 572f958ca23a5019007fc7b9 | transistor applications, including analog circuits, voltage regulators, amplifiers, power transmitters and motor drivers | 453 | null | -1 | false |
Geography_of_the_United_States | The Intermontane Plateaus come to an end at the Cascade Range and the Sierra Nevada. The Cascades consist of largely intermittent, volcanic mountains, many rising prominently from the surrounding landscape. The Sierra Nevada, further south, is a high, rugged, and dense mountain range. It contains the highest point in the contiguous 48 states, Mount Whitney (14,505 ft or 4,421 m) It is located at the boundary between California's Inyo and Tulare counties, just 84.6 mi or 136.2 km west-northwest of the lowest point in North America at the Badwater Basin in Death Valley National Park at 279 ft or 85 m below sea level. | How tall is Mount Whitney? | 572ec835c246551400ce4664 | 14,505 ft | 360 | null | -1 | false |
Buckingham_Palace | In 1901 the accession of Edward VII saw new life breathed into the palace. The new King and his wife Queen Alexandra had always been at the forefront of London high society, and their friends, known as "the Marlborough House Set", were considered to be the most eminent and fashionable of the age. Buckingham Palace—the Ballroom, Grand Entrance, Marble Hall, Grand Staircase, vestibules and galleries redecorated in the Belle époque cream and gold colour scheme they retain today—once again became a setting for entertaining on a majestic scale but leaving some to feel King Edward's heavy redecorations were at odds with Nash's original work. | When did King Edward VII take the throne? | 57261fd438643c19005ad04d | 1901 | 3 | null | -1 | false |
Post-punk | Post-punk was an eclectic genre which resulted in a wide variety of musical innovations and helped merge white and black musical styles. Out of the post-punk milieu came the beginnings of various subsequent genres, including new wave, dance-rock, New Pop, industrial music, synthpop, post-hardcore, neo-psychedelia alternative rock and house music. Bands such as Joy Division, Siouxsie and the Banshees, Bauhaus and the Cure played in a darker, more morose style of post-punk that lead to the development of the gothic rock genre. | New wave, industrial music, synthpop and house all share roots in what genre? | 572ee720c246551400ce4794 | post-punk | 148 | null | -1 | false |
Queen_Victoria | Victoria's youngest son, Leopold, was affected by the blood-clotting disease haemophilia B and two of her five daughters, Alice and Beatrice, were carriers. Royal haemophiliacs descended from Victoria included her great-grandsons, Tsarevich Alexei of Russia, Alfonso, Prince of Asturias, and Infante Gonzalo of Spain. The presence of the disease in Victoria's descendants, but not in her ancestors, led to modern speculation that her true father was not the Duke of Kent but a haemophiliac. There is no documentary evidence of a haemophiliac in connection with Victoria's mother, and as male carriers always suffer the disease, even if such a man had existed he would have been seriously ill. It is more likely that the mutation arose spontaneously because Victoria's father was over 50 at the time of her conception and haemophilia arises more frequently in the children of older fathers. Spontaneous mutations account for about a third of cases. | How old was Victorias father at the time of her death? | 5ad18069645df0001a2d1e6c | null | -1 | over 50 | 779 | true |
United_States_dollar | The U.S. Constitution provides that Congress shall have the power to "borrow money on the credit of the United States". Congress has exercised that power by authorizing Federal Reserve Banks to issue Federal Reserve Notes. Those notes are "obligations of the United States" and "shall be redeemed in lawful money on demand at the Treasury Department of the United States, in the city of Washington, District of Columbia, or at any Federal Reserve bank". Federal Reserve Notes are designated by law as "legal tender" for the payment of debts. Congress has also authorized the issuance of more than 10 other types of banknotes, including the United States Note and the Federal Reserve Bank Note. The Federal Reserve Note is the only type that remains in circulation since the 1970s. | Where, other than any Federal Reserve bank, can notes be redeemed? | 5709de964103511400d5948d | Washington, District of Columbia | 387 | null | -1 | false |
Light-emitting_diode | There are several types of multi-color white LEDs: di-, tri-, and tetrachromatic white LEDs. Several key factors that play among these different methods, include color stability, color rendering capability, and luminous efficacy. Often, higher efficiency will mean lower color rendering, presenting a trade-off between the luminous efficacy and color rendering. For example, the dichromatic white LEDs have the best luminous efficacy (120 lm/W), but the lowest color rendering capability. However, although tetrachromatic white LEDs have excellent color rendering capability, they often have poor luminous efficacy. Trichromatic white LEDs are in between, having both good luminous efficacy (>70 lm/W) and fair color rendering capability. | Higher efficiency in multi-color white LEDs may mean what? | 5731162005b4da19006bcd7e | lower color rendering | 265 | null | -1 | false |
Cork_(city) | The climate of Cork, like the rest of Ireland, is mild and changeable with abundant rainfall and a lack of temperature extremes. Cork lies in plant Hardiness zone 9b. Met Éireann maintains a climatological weather station at Cork Airport, a few kilometres south of the city. It should be noted that the airport is at an altitude of 151 metres (495 ft) and temperatures can often differ by a few degrees between the airport and the city itself. There are also smaller synoptic weather stations at UCC and Clover Hill. | Where are some weather stations near Cork? | 5727ab6e2ca10214002d9351 | UCC and Clover Hill | 496 | null | -1 | false |
Chicago_Cubs | In 2004, the Cubs were a consensus pick by most media outlets to win the World Series. The offseason acquisition of Derek Lee (who was acquired in a trade with Florida for Hee-seop Choi) and the return of Greg Maddux only bolstered these expectation. Despite a mid-season deal for Nomar Garciaparra, misfortune struck the Cubs again. They led the Wild Card by 1.5 games over San Francisco and Houston on September 25, and both of those teams lost that day, giving the Cubs a chance at increasing the lead to a commanding 2.5 games with only eight games remaining in the season, but reliever LaTroy Hawkins blew a save to the Mets, and the Cubs lost the game in extra innings, a defeat that seemingly deflated the team, as they proceeded to drop 6 of their last 8 games as the Astros won the Wild Card. | What year did most media outlets pick the Cubs to win the World Series? | 572673895951b619008f72f9 | 2004 | 3 | null | -1 | false |
Database | A DBMS has evolved into a complex software system and its development typically requires thousands of human years of development effort.[a] Some general-purpose DBMSs such as Adabas, Oracle and DB2 have been undergoing upgrades since the 1970s. General-purpose DBMSs aim to meet the needs of as many applications as possible, which adds to the complexity. However, the fact that their development cost can be spread over a large number of users means that they are often the most cost-effective approach. However, a general-purpose DBMS is not always the optimal solution: in some cases a general-purpose DBMS may introduce unnecessary overhead. Therefore, there are many examples of systems that use special-purpose databases. A common example is an email system that performs many of the functions of a general-purpose DBMS such as the insertion and deletion of messages composed of various items of data or associating messages with a particular email address; but these functions are limited to what is required to handle email and don't provide the user with all of the functionality that would be available using a general-purpose DBMS. | How is the cost to create a DBMS distributed? | 572f5ebd947a6a140053c8ca | spread over a large number of users | 409 | null | -1 | false |
Avicenna | Later interpretations of Avicenna's philosophy split into three different schools; those (such as al-Tusi) who continued to apply his philosophy as a system to interpret later political events and scientific advances; those (such as al-Razi) who considered Avicenna's theological works in isolation from his wider philosophical concerns; and those (such as al-Ghazali) who selectively used parts of his philosophy to support their own attempts to gain greater spiritual insights through a variety of mystical means. It was the theological interpretation championed by those such as al-Razi which eventually came to predominate in the madrasahs. | Which interpretation of Avicenna's work was more taught in Islamic schools? | 5726e53df1498d1400e8ef1e | al-Razi | 582 | null | -1 | false |
Clothing | Scientists are still debating when people started wearing clothes. Ralf Kittler, Manfred Kayser and Mark Stoneking, anthropologists at the Max Planck Institute for Evolutionary Anthropology, have conducted a genetic analysis of human body lice that suggests clothing originated quite recently, around 170,000 years ago. Body lice is an indicator of clothes-wearing, since most humans have sparse body hair, and lice thus require human clothing to survive. Their research suggests the invention of clothing may have coincided with the northward migration of modern Homo sapiens away from the warm climate of Africa, thought to have begun between 50,000 and 100,000 years ago. However, a second group of researchers using similar genetic methods estimate that clothing originated around 540,000 years ago (Reed et al. 2004. PLoS Biology 2(11): e340). For now, the date of the origin of clothing remains unresolved.[citation needed] | What type of analysis has been conducted on human body lice? | 57261520271a42140099d44c | genetic | 208 | null | -1 | false |
Tucson,_Arizona | At the University of Arizona, where records have been kept since 1894, the record maximum temperature was 115 °F (46 °C) on June 19, 1960, and July 28, 1995, and the record minimum temperature was 6 °F (−14 °C) on January 7, 1913. There are an average of 150.1 days annually with highs of 90 °F (32 °C) or higher and an average of 26.4 days with lows reaching or below the freezing mark. Average annual precipitation is 11.15 in (283 mm). There is an average of 49 days with measurable precipitation. The wettest year was 1905 with 24.17 in (614 mm) and the driest year was 1924 with 5.07 in (129 mm). The most precipitation in one month was 7.56 in (192 mm) in July 1984. The most precipitation in 24 hours was 4.16 in (106 mm) on October 1, 1983. Annual snowfall averages 0.7 in (1.8 cm). The most snow in one year was 7.2 in (18 cm) in 1987. The most snow in one month was 6.0 in (15 cm) in January 1898 and March 1922. | What was Tucson's wettest year? | 5734346a4776f41900661a71 | 1905 | 522 | null | -1 | false |
Buddhism | Zen Buddhism (禅), pronounced Chán in Chinese, seon in Korean or zen in Japanese (derived from the Sanskrit term dhyāna, meaning "meditation") is a form of Buddhism that became popular in China, Korea and Japan and that lays special emphasis on meditation.[note 12] Zen places less emphasis on scriptures than some other forms of Buddhism and prefers to focus on direct spiritual breakthroughs to truth. | Zen focuses on what type of breakthroughs? | 56d24773b329da140004ecd7 | spiritual | 369 | null | -1 | false |
Mammal | Breathing is largely driven by the muscular diaphragm, which divides the thorax from the abdominal cavity, forming a dome with its convexity towards the thorax. Contraction of the diaphragm flattens the dome, increasing the volume of the cavity in which the lung is enclosed. Air enters through the oral and nasal cavities; it flows through the larynx, trachea and bronchi and expands the alveoli. Relaxation of the diaphragm has the opposite effect, passively recoiling during normal breathing. During exercise, the abdominal wall contracts, increasing visceral pressure on the diaphragm, thus forcing the air out more quickly and forcefully. The rib cage itself also is able to expand and contract the thoracic cavity to some degree, through the action of other respiratory and accessory respiratory muscles. As a result, air is sucked into or expelled out of the lungs, always moving down its pressure gradient. This type of lung is known as a bellows lung as it resembles a blacksmith's bellows. Mammals take oxygen into their lungs, and discard carbon dioxide. | When air enters the nasal cavity, what does the rib cage expand? | 5a3a013c2f14dd001ac726ab | null | -1 | the alveoli | 385 | true |
Molotov%E2%80%93Ribbentrop_Pact | Molotov declared in his report entitled "On the Foreign Policy of the Soviet Union" (31 October 1939) held on the fifth (extraordinary) session of the Supreme Soviet, that the Western "ruling circles" disguise their intentions with the pretext of defending democracy against Hitlerism, declaring "their aim in war with Germany is nothing more, nothing less than extermination of Hitlerism. [...] There is absolutely no justification for this kind of war. The ideology of Hitlerism, just like any other ideological system, can be accepted or rejected, this is a matter of political views. But everyone grasps, that an ideology can not be exterminated by force, must not be finished off with a war." | What wasn't the title of Molotov’s report called? | 5ad28932d7d075001a429978 | null | -1 | On the Foreign Policy of the Soviet Union | 41 | true |
Group_(mathematics) | In mathematics, a group is an algebraic structure consisting of a set of elements equipped with an operation that combines any two elements to form a third element. The operation satisfies four conditions called the group axioms, namely closure, associativity, identity and invertibility. One of the most familiar examples of a group is the set of integers together with the addition operation, but the abstract formalization of the group axioms, detached as it is from the concrete nature of any particular group and its operation, applies much more widely. It allows entities with highly diverse mathematical origins in abstract algebra and beyond to be handled in a flexible way while retaining their essential structural aspects. The ubiquity of groups in numerous areas within and outside mathematics makes them a central organizing principle of contemporary mathematics. | What do entities lose when handled in abstract algebra? | 5a81b61731013a001a334db6 | null | -1 | their essential structural aspects | 698 | true |
Gene | The relationship between genes can be measured by comparing the sequence alignment of their DNA.:7.6 The degree of sequence similarity between homologous genes is called conserved sequence. Most changes to a gene's sequence do not affect its function and so genes accumulate mutations over time by neutral molecular evolution. Additionally, any selection on a gene will cause its sequence to diverge at a different rate. Genes under stabilizing selection are constrained and so change more slowly whereas genes under directional selection change sequence more rapidly. The sequence differences between genes can be used for phylogenetic analyses to study how those genes have evolved and how the organisms they come from are related. | What type of analyses can the sequence differences between genes be used for? | 56f8d7e39e9bad19000a05d4 | phylogenetic | 624 | null | -1 | false |
Electric_motor | Many of the limitations of the classic commutator DC motor are due to the need for brushes to press against the commutator. This creates friction. Sparks are created by the brushes making and breaking circuits through the rotor coils as the brushes cross the insulating gaps between commutator sections. Depending on the commutator design, this may include the brushes shorting together adjacent sections – and hence coil ends – momentarily while crossing the gaps. Furthermore, the inductance of the rotor coils causes the voltage across each to rise when its circuit is opened, increasing the sparking of the brushes. This sparking limits the maximum speed of the machine, as too-rapid sparking will overheat, erode, or even melt the commutator. The current density per unit area of the brushes, in combination with their resistivity, limits the output of the motor. The making and breaking of electric contact also generates electrical noise; sparking generates RFI. Brushes eventually wear out and require replacement, and the commutator itself is subject to wear and maintenance (on larger motors) or replacement (on small motors). The commutator assembly on a large motor is a costly element, requiring precision assembly of many parts. On small motors, the commutator is usually permanently integrated into the rotor, so replacing it usually requires replacing the whole rotor. | How is RFI generated? | 5726ae3cdd62a815002e8cce | sparking | 946 | null | -1 | false |
Portugal | Portugal is a significant European minerals producer and is ranked among Europe's leading copper producers. The nation is also a notable producer of tin, tungsten and uranium. However, the country lacks the potential to conduct hydrocarbon exploration and aluminium, a limitation that has hindered the development of Portugal's mining and metallurgy sectors. Although the country has vast iron and coal reserves—mainly in the north—after the 1974 revolution and the consequent economic globalization, low competitiveness forced a decrease in the extraction activity for these minerals. The Panasqueira and Neves-Corvo mines are among the most recognised Portuguese mines that are still in operation.[citation needed] | What mineral is Portugal ranked as a leading European producer of? | 573405584776f4190066170d | copper | 90 | null | -1 | false |
Pain | The most reliable method for assessing pain in most humans is by asking a question: a person may report pain that cannot be detected by any known physiological measure. However, like infants (Latin infans meaning "unable to speak"), animals cannot answer questions about whether they feel pain; thus the defining criterion for pain in humans cannot be applied to them. Philosophers and scientists have responded to this difficulty in a variety of ways. René Descartes for example argued that animals lack consciousness and therefore do not experience pain and suffering in the way that humans do. Bernard Rollin of Colorado State University, the principal author of two U.S. federal laws regulating pain relief for animals, writes that researchers remained unsure into the 1980s as to whether animals experience pain, and that veterinarians trained in the U.S. before 1989 were simply taught to ignore animal pain. In his interactions with scientists and other veterinarians, he was regularly asked to "prove" that animals are conscious, and to provide "scientifically acceptable" grounds for claiming that they feel pain. Carbone writes that the view that animals feel pain differently is now a minority view. Academic reviews of the topic are more equivocal, noting that although the argument that animals have at least simple conscious thoughts and feelings has strong support, some critics continue to question how reliably animal mental states can be determined. The ability of invertebrate species of animals, such as insects, to feel pain and suffering is also unclear. | What did Descartes argue animals lack? | 572faa1c04bcaa1900d76b8d | consciousness | 505 | null | -1 | false |
Presbyterianism | In 1972, the Presbyterian Church of England (PCofE) united with the Congregational Church in England and Wales to form the United Reformed Church (URC). Among the congregations the PCofE brought to the URC were Tunley (Lancashire), Aston Tirrold (Oxfordshire) and John Knox Presbyterian Church, Stepney, London (now part of Stepney Meeting House URC) – these are among the sole survivors today of the English Presbyterian churches of the 17th century. The URC also has a presence in Scotland, mostly of former Congregationalist Churches. Two former Presbyterian congregations, St Columba's, Cambridge (founded in 1879), and St Columba's, Oxford (founded as a chaplaincy by the PCofE and the Church of Scotland in 1908 and as a congregation of the PCofE in 1929), continue as congregations of the URC and university chaplaincies of the Church of Scotland. | The Church of Stepney and the Congergational Church in Lancashire united in what year? | 5acfd3e077cf76001a68622d | null | -1 | 1972 | 3 | true |
Rajasthan | Rajasthan attracted 14 percent of total foreign visitors during 2009–2010 which is the fourth highest among Indian states. It is fourth also in Domestic tourist visitors. Tourism is a flourishing industry in Rajasthan. The palaces of Jaipur and Ajmer-Pushkar, the lakes of Udaipur, the desert forts of Jodhpur, Taragarh Fort (Star Fort) in Ajmer, and Bikaner and Jaisalmer rank among the most preferred destinations in India for many tourists both Indian and foreign. Tourism accounts for eight percent of the state's domestic product. Many old and neglected palaces and forts have been converted into heritage hotels. Tourism has increased employment in the hospitality sector. | What two palaces are frequent tourist destinations within Rajasthan? | 572ab1e9111d821400f38ce1 | The palaces of Jaipur and Ajmer-Pushkar | 219 | null | -1 | false |
Human_Development_Index | The 2009 Human Development Report by UNDP was released on October 5, 2009, and covers the period up to 2007. It was titled "Overcoming barriers: Human mobility and development". The top countries by HDI were grouped in a new category called "very high human development". The report refers to these countries as developed countries. They are: | What period is covered by the 2008 Human Development Report? | 5ad0d264645df0001a2d0543 | null | -1 | period up to 2007 | 90 | true |
Treaty | The language of treaties, like that of any law or contract, must be interpreted when the wording does not seem clear or it is not immediately apparent how it should be applied in a perhaps unforeseen circumstance. The Vienna Convention states that treaties are to be interpreted "in good faith" according to the "ordinary meaning given to the terms of the treaty in their context and in the light of its object and purpose." International legal experts also often invoke the 'principle of maximum effectiveness,' which interprets treaty language as having the fullest force and effect possible to establish obligations between the parties. | What states that treaties are to be interpreted "in good faith" according to the "ordinary meaning given to the terms of the treaty in their context and in light of its object and purpose?" | 56f733273d8e2e1400e3744e | The Vienna Convention | 214 | null | -1 | false |
Ashkenazi_Jews | Efforts to identify the origins of Ashkenazi Jews through DNA analysis began in the 1990s. Currently, there are three types of genetic origin testing, autosomal DNA (atDNA), mitochondrial DNA (mtDNA), and Y-chromosomal DNA (Y-DNA). Autosomal DNA is a mixture from an individual's entire ancestry, Y-DNA shows a male's lineage only along his strict-paternal line, mtDNA shows any person's lineage only along the strict-maternal line. Genome-wide association studies have also been employed to yield findings relevant to genetic origins. | What are the three types of origin testing? | 571a8e1c10f8ca1400305123 | autosomal DNA (atDNA), mitochondrial DNA (mtDNA), and Y-chromosomal DNA (Y-DNA) | 151 | null | -1 | false |
Gramophone_record | The phonograph disc record was the primary medium used for music reproduction until late in the 20th century, replacing the phonograph cylinder record–with which it had co-existed from the late 1880s through to the 1920s–by the late 1920s. Records retained the largest market share even when new formats such as compact cassette were mass-marketed. By the late 1980s, digital media, in the form of the compact disc, had gained a larger market share, and the vinyl record left the mainstream in 1991. From the 1990s to the 2010s, records continued to be manufactured and sold on a much smaller scale, and were especially used by disc jockeys (DJ)s, released by artists in some genres, and listened to by a niche market of audiophiles. The phonograph record has made a niche resurgence in the early 21st century – 9.2 million records were sold in the U.S. in 2014, a 260% increase since 2009. Likewise, in the UK sales have increased five-fold from 2009 to 2014. | From the 1990s to 2010s who was the primary consumer of vinyl records? | 57277777f1498d1400e8f8e8 | disc jockeys (DJ)s | 628 | null | -1 | false |
Slavs | Jordanes tells us that the Sclaveni had swamps and forests for their cities. Another 6th-century source refers to them living among nearly impenetrable forests, rivers, lakes, and marshes. | Who wrote that the Sclaveni lived in impenetrable forests? | 5ad4a4faba00c4001a268ea6 | null | -1 | Jordanes | 0 | true |
Modern_history | Beginning the Age of Revolution, the American Revolution and the ensuing political upheaval during the last half of the 18th century saw the Thirteen Colonies of North America overthrow the governance of the Parliament of Great Britain, and then reject the British monarchy itself to become the sovereign United States of America. In this period the colonies first rejected the authority of the Parliament to govern them without representation, and formed self-governing independent states. The Second Continental Congress then joined together against the British to defend that self-governance in the armed conflict from 1775 to 1783 known as the American Revolutionary War (also called American War of Independence). | What is the armed conflict form 1775 to 1783 is known as? | 572f140403f9891900756b81 | American Revolutionary War | 648 | null | -1 | false |
Washington_University_in_St._Louis | Washington University has been selected by the Commission on Presidential Debates to host more presidential and vice-presidential debates than any other institution in history. United States presidential election debates were held at the Washington University Athletic Complex in 1992, 2000, 2004, and 2016. A presidential debate was planned to occur in 1996, but owing to scheduling difficulties between the candidates, the debate was canceled. The university hosted the only 2008 vice presidential debate, between Republican Sarah Palin and Democrat Joe Biden, on October 2, 2008, also at the Washington University Athletic Complex. | In what year was the Washington University Athletic Complex built? | 5ace1b9532bba1001ae49adb | null | -1 | 1992 | 280 | true |
St._John%27s,_Newfoundland_and_Labrador | Pippy Park is an urban park located in the east end of the city; with over 3,400 acres (14 km2) of land, it is one of Canada's largest urban parks. The park contains a range of recreational facilities including two golf courses, Newfoundland and Labrador's largest serviced campground, walking and skiing trails as well as protected habitat for many plants and animals. Pippy Park is also home to the Fluvarium, an environmental education centre which offers a cross section view of Nagle's Hill Brook. | About how many acres is Pippy Park? | 572821c33acd2414000df53c | 3,400 | 75 | null | -1 | false |
North_Carolina | Over the last decade, North Carolina has become a cultural epicenter and haven for internationally prize-winning wine (Noni Bacca Winery), internationally prized cheeses (Ashe County), "L'institut International aux Arts Gastronomiques: Conquerront Les Yanks les Truffes, January 15, 2010" international hub for truffles (Garland Truffles), and beer making, as tobacco land has been converted to grape orchards while state laws regulating alcohol content in beer allowed a jump in ABV from 6% to 15%. The Yadkin Valley in particular has become a strengthening market for grape production, while Asheville recently won the recognition of being named 'Beer City USA.' Asheville boasts the largest breweries per capita of any city in the United States. Recognized and marketed brands of beer in North Carolina include Highland Brewing, Duck Rabbit Brewery, Mother Earth Brewery, Weeping Radish Brewery, Big Boss Brewing, Foothills Brewing, Carolina Brewing Company, Lonerider Brewing, and White Rabbit Brewing Company. | North carolina state law allowed a jump in alcohol volume from 6% to what percent? | 5727b6423acd2414000dea5c | 15%. | 495 | null | -1 | false |
Association_football | The goalkeepers are the only players allowed to touch the ball with their hands or arms while it is in play and only in their penalty area. Outfield players mostly use their feet to strike or pass the ball, but may also use their head or torso to do so instead. The team that scores the most goals by the end of the match wins. If the score is level at the end of the game, either a draw is declared or the game goes into extra time and/or a penalty shootout depending on the format of the competition. The Laws of the Game were originally codified in England by The Football Association in 1863. Association football is governed internationally by the International Federation of Association Football (FIFA; French: Fédération Internationale de Football Association), which organises World Cups for both men and women every four years. | Who Organizes the World Cups? | 57300b6ea23a5019007fccbe | International Federation of Association Football | 653 | null | -1 | false |
Freemasonry | In 1933, the Orthodox Church of Greece officially declared that being a Freemason constitutes an act of apostasy and thus, until he repents, the person involved with Freemasonry cannot partake of the Eucharist. This has been generally affirmed throughout the whole Eastern Orthodox Church. The Orthodox critique of Freemasonry agrees with both the Roman Catholic and Protestant versions: "Freemasonry cannot be at all compatible with Christianity as far as it is a secret organisation, acting and teaching in mystery and secret and deifying rationalism." | What action is mandatory by the Orthodox Greek Church to Freemasons? | 5acf93b877cf76001a685310 | null | -1 | partake of the Eucharist | 185 | true |
Adolescence | Drinking habits and the motives behind them often reflect certain aspects of an individual's personality; in fact, four dimensions of the Five-Factor Model of personality demonstrate associations with drinking motives (all but 'Openness'). Greater enhancement motives for alcohol consumption tend to reflect high levels of extraversion and sensation-seeking in individuals; such enjoyment motivation often also indicates low conscientiousness, manifesting in lowered inhibition and a greater tendency towards aggression. On the other hand, drinking to cope with negative emotional states correlates strongly with high neuroticism and low agreeableness. Alcohol use as a negative emotion control mechanism often links with many other behavioral and emotional impairments, such as anxiety, depression, and low self-esteem. | Which motivation for drinking alcohol results in low conscientiousness, lowered inhibition, and greater tendency towards aggression? | 570dc39016d0071400510d5b | enjoyment | 379 | null | -1 | false |
BeiDou_Navigation_Satellite_System | The first satellite, BeiDou-1A, was launched on 30 October 2000, followed by BeiDou-1B on 20 December 2000. The third satellite, BeiDou-1C (a backup satellite), was put into orbit on 25 May 2003. The successful launch of BeiDou-1C also meant the establishment of the BeiDou-1 navigation system. | When was the BeiDou-1C rocket launched? | 5acd353307355d001abf3953 | null | -1 | 25 May 2003 | 183 | true |
2008_Summer_Olympics_torch_relay |
Turkey: The torch relay leg in Istanbul, held on April 3, started on Sultanahmet Square and finished in Taksim Square. Uyghurs living in Turkey protested at Chinese treatment of their compatriots living in Xinjiang. Several protesters who tried to disrupt the relay were promptly arrested by the police. | What city was the Olympic Torch at on April 3rd? | 56db0a87e7c41114004b4cb1 | Istanbul | 33 | null | -1 | false |
Federal_Bureau_of_Investigation | In March 1971, the residential office of an FBI agent in Media, Pennsylvania was burglarized by a group calling itself the Citizens' Commission to Investigate the FBI. Numerous files were taken and distributed to a range of newspapers, including The Harvard Crimson. The files detailed the FBI's extensive COINTELPRO program, which included investigations into lives of ordinary citizens—including a black student group at a Pennsylvania military college and the daughter of Congressman Henry Reuss of Wisconsin. The country was "jolted" by the revelations, which included assassinations of political activists, and the actions were denounced by members of Congress, including House Majority Leader Hale Boggs. The phones of some members of Congress, including Boggs, had allegedly been tapped. | What files was the Citizens' Commission to Investigate the FBI's raid mainly focused on? | 570c2375ec8fbc190045bc78 | COINTELPRO program | 306 | null | -1 | false |
Antarctica | Geologically, West Antarctica closely resembles the Andes mountain range of South America. The Antarctic Peninsula was formed by uplift and metamorphism of sea bed sediments during the late Paleozoic and the early Mesozoic eras. This sediment uplift was accompanied by igneous intrusions and volcanism. The most common rocks in West Antarctica are andesite and rhyolite volcanics formed during the Jurassic period. There is also evidence of volcanic activity, even after the ice sheet had formed, in Marie Byrd Land and Alexander Island. The only anomalous area of West Antarctica is the Ellsworth Mountains region, where the stratigraphy is more similar to East Antarctica. | What caused volcanism on the Antarctic Peninsula? | 5ad256b8d7d075001a428d7e | null | -1 | uplift and metamorphism of sea bed | 129 | true |
Slavs | Slavic studies began as an almost exclusively linguistic and philological enterprise. As early as 1833, Slavic languages were recognized as Indo-European. | When were Slavic languages recognized as Indo-European? | 56f740d5aef2371900625a48 | As early as 1833 | 86 | null | -1 | false |
Jews | Hebrew is the liturgical language of Judaism (termed lashon ha-kodesh, "the holy tongue"), the language in which most of the Hebrew scriptures (Tanakh) were composed, and the daily speech of the Jewish people for centuries. By the 5th century BCE, Aramaic, a closely related tongue, joined Hebrew as the spoken language in Judea. By the 3rd century BCE, some Jews of the diaspora were speaking Greek. Others, such as in the Jewish communities of Babylonia, were speaking Hebrew and Aramaic, the languages of the Babylonian Talmud. These languages were also used by the Jews of Israel at that time.[citation needed] | What is a closely related tongue to Hebrew? | 572778495951b619008f8ab1 | Aramaic | 248 | null | -1 | false |
Chicago_Cubs | Despite the fact that the Cubs had won 89 games, this fallout was decidedly unlovable, as the Cubs traded superstar Sammy Sosa after he had left the season's final game early and then lied about it publicly. Already a controversial figure in the clubhouse after his corked-bat incident, Sammy's actions alienated much of his once strong fan base as well as the few teammates still on good terms with him, (many teammates grew tired of Sosa playing loud salsa music in the locker room) and possibly tarnished his place in Cubs' lore for years to come. The disappointing season also saw fans start to become frustrated with the constant injuries to ace pitchers Mark Prior and Kerry Wood. Additionally, the '04 season led to the departure of popular commentator Steve Stone, who had become increasingly critical of management during broadcasts and was verbally attacked by reliever Kent Mercker. Things were no better in 2005, despite a career year from first baseman Derrek Lee and the emergence of closer Ryan Dempster. The club struggled and suffered more key injuries, only managing to win 79 games after being picked by many to be a serious contender for the N.L. pennant. In 2006, bottom fell out as the Cubs finished 66–96, last in the NL Central. | Who did the Cubs trade after leaving the final game early and lieing about it? | 5726742e708984140094c6a5 | Sammy Sosa | 116 | null | -1 | false |
House_music | In Britain, further experiments in the genre boosted its appeal. House and rave clubs such as Lakota and Cream emerged across Britain, hosting house and dance scene events. The 'chilling out' concept developed in Britain with ambient house albums such as The KLF's Chill Out and Analogue Bubblebath by Aphex Twin. The Godskitchen superclub brand also began in the midst of the early 90's rave scene. After initially hosting small nights in Cambridge and Northampton, the associated events scaled up in Milton Keynes, Birmingham and Leeds. A new indie dance scene also emerged in the 90's. In New York, bands such as Deee-Lite furthered house's international influence. Two distinctive tracks from this era were the Orb's "Little Fluffy Clouds" (with a distinctive vocal sample from Rickie Lee Jones) and the Happy Mondays' "Wrote for Luck" ("WFL") which was transformed into a dance hit by Vince Clarke. | Who released the album "Fluffy Orb"? | 5ad29983d7d075001a429b71 | null | -1 | Aphex Twin | 302 | true |
Hunting | Hunting is the practice of killing or trapping any animal, or pursuing or tracking it with the intent of doing so. Hunting wildlife or feral animals is most commonly done by humans for food, recreation, to remove predators which are dangerous to humans or domestic animals, or for trade. In the 2010s, lawful hunting is distinguished from poaching, which is the illegal killing, trapping or capture of the hunted species. The species that are hunted are referred to as game or prey and are usually mammals and birds. | In what year were feral animals first categorized? | 5ace4c8632bba1001ae4a213 | null | -1 | 2010s | 295 | true |
2008_Sichuan_earthquake | In 2002, Chinese geologist Chen Xuezhong published a Seismic Risk Analysis study in which he came to the conclusion that beginning with 2003, attention should be paid to the possibility of an earthquake with a magnitude of over 7.0 occurring in Sichuan region. He based his study on statistical correlation. That Sichuan is a seismically active area has been discussed for years prior to the quake, though few studies point to a specific date and time. | Who published the Seismic Risk Analysis? | 56cec548aab44d1400b88a14 | Chen Xuezhong | 27 | null | -1 | false |
Norfolk_Island | In 1824 the British government instructed the Governor of New South Wales Thomas Brisbane to occupy Norfolk Island as a place to send "the worst description of convicts". Its remoteness, previously seen as a disadvantage, was now viewed as an asset for the detention of recalcitrant male prisoners. The convicts detained have long been assumed to be a hardcore of recidivists, or 'doubly-convicted capital respites' – that is, men transported to Australia who committed fresh colonial crimes for which they were sentenced to death, and were spared the gallows on condition of life at Norfolk Island. However, a recent study has demonstrated, utilising a database of 6,458 Norfolk Island convicts, that the reality was somewhat different: more than half were detained at Norfolk Island without ever receiving a colonial conviction, and only 15% had been reprieved from a death sentence. Furthermore, the overwhelming majority of convicts sent to Norfolk Island had committed non-violent property sentences, and the average length of detention was three years. | What were the prisoners on Norfolk Island spared from on the the mainland? | 57269ffdf1498d1400e8e548 | the gallows | 548 | null | -1 | false |
Gothic_architecture | Externally, towers and spires are characteristic of Gothic churches both great and small, the number and positioning being one of the greatest variables in Gothic architecture. In Italy, the tower, if present, is almost always detached from the building, as at Florence Cathedral, and is often from an earlier structure. In France and Spain, two towers on the front is the norm. In England, Germany and Scandinavia this is often the arrangement, but an English cathedral may also be surmounted by an enormous tower at the crossing. Smaller churches usually have just one tower, but this may also be the case at larger buildings, such as Salisbury Cathedral or Ulm Minster, which has the tallest spire in the world, slightly exceeding that of Lincoln Cathedral, the tallest which was actually completed during the medieval period, at 160 metres (520 ft). | What is one feature of only small Gothic churches? | 5ad0ef59645df0001a2d086a | null | -1 | towers | 12 | true |
War_on_Terror | Following the ceasefire agreement that suspended hostilities (but not officially ended) in the 1991 Gulf War, the United States and its allies instituted and began patrolling Iraqi no-fly zones, to protect Iraq's Kurdish and Shi'a Arab population—both of which suffered attacks from the Hussein regime before and after the Gulf War—in Iraq's northern and southern regions, respectively. U.S. forces continued in combat zone deployments through November 1995 and launched Operation Desert Fox against Iraq in 1998 after it failed to meet U.S. demands of "unconditional cooperation" in weapons inspections. | When did the first Gulf War begin? | 572846aa4b864d1900164894 | 1991 | 95 | null | -1 | false |
Eton_College | Besides Prince William and Prince Harry, members of the extended British Royal Family who have attended Eton include Prince Richard, Duke of Gloucester and his son Alexander Windsor, Earl of Ulster; Prince Edward, Duke of Kent, his eldest son George Windsor, Earl of St Andrews and grandson Edward Windsor, Lord Downpatrick and his youngest son Lord Nicholas Windsor; Prince Michael of Kent and his son Lord Frederick Windsor; James Ogilvy, son of Princess Alexandra and the Right Honourable Angus Ogilvy, himself an Eton alumnus. Prince William of Gloucester (1942-1972) also attended Eton, as did George Lascelles, 7th Earl of Harewood, son of Princess Mary, Princess Royal. | Where is Prince Richard's son, Alexander Windsor, Earl of? | 5727fb69ff5b5019007d99ed | Ulster | 191 | null | -1 | false |
Light-emitting_diode | Quantum dots (QD) are semiconductor nanocrystals that possess unique optical properties. Their emission color can be tuned from the visible throughout the infrared spectrum. This allows quantum dot LEDs to create almost any color on the CIE diagram. This provides more color options and better color rendering than white LEDs since the emission spectrum is much narrower, characteristic of quantum confined states. There are two types of schemes for QD excitation. One uses photo excitation with a primary light source LED (typically blue or UV LEDs are used). The other is direct electrical excitation first demonstrated by Alivisatos et al. | The narrowing of the emission spectrum in Quantum Dot LEDs allows them to do what? | 5731249ea5e9cc1400cdbc9d | better color rendering | 287 | null | -1 | false |
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