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25#61 | Autism | The New Latin word "autismus" (English translation "autism") was coined by the Swiss psychiatrist Eugen Bleuler in 1910 as he was defining symptoms of schizophrenia. He derived it from the Greek word "autós" (αὐτός, meaning "self"), and used it to mean morbid self-admiration, referring to "autistic withdrawal of the patient to his fantasies, against which any influence from outside becomes an intolerable disturbance". A Soviet child psychiatrist, Grunya Sukhareva, described a similar syndrome that was published in Russian in 1925, and in German in 1926. |
358#104 | Algeria | Islam is the predominant religion in Algeria, with its adherents, mostly Sunnis, accounting for 99% of the population according to a 2012 CIA World Factbook estimate, and 97.9% according to Pew Research in 2010. There are about 150,000 Ibadis in the M'zab Valley in the region of Ghardaia. |
569#4 | Anthropology | Sporadic use of the term for some of the subject matter occurred subsequently, such as the use by Étienne Serres in 1839 to describe the natural history, or paleontology, of man, based on comparative anatomy, and the creation of a chair in anthropology and ethnography in 1850 at the National Museum of Natural History (France) by Jean Louis Armand de Quatrefages de Bréau. Various short-lived organizations of anthropologists had already been formed. The Société Ethnologique de Paris, the first to use Ethnology, was formed in 1839. Its members were primarily anti-slavery activists. When slavery was abolished in France in 1848 the Société was abandoned. |
615#3 | American Football Conference | Each AFC team plays the other teams in their respective division twice (home and away) during the regular season, in addition to 10 other games assigned to their schedule by the NFL. Two of these games are assigned on the basis of a particular team's final divisional standing from the previous season. The remaining 8 games are split between the roster of two other NFL divisions. This assignment shifts each year and will follow a standard cycle. Using the 2012 regular season schedule as an example, each team in the AFC West plays against every team in the AFC North and NFC South. In this way, non-divisional competition will be mostly among common opponents – the exception being the two games assigned based on the team's prior-season divisional standing. |
633#0 | Algae | Algae (; singular alga ) is an informal term for a large, diverse group of photosynthetic eukaryotic organisms that are not necessarily closely related, and is thus polyphyletic. Including organisms ranging from unicellular microalgae genera, such as "Chlorella" and the diatoms, to multicellular forms, such as the giant kelp, a large brown alga which may grow up to 50 m in length. Most are aquatic and autotrophic and lack many of the distinct cell and tissue types, such as stomata, xylem, and phloem, which are found in land plants. The largest and most complex marine algae are called seaweeds, while the most complex freshwater forms are the Charophyta, a division of green algae which includes, for example, "Spirogyra" and the stoneworts. |
664#16 | Astronaut | Alan Shepard became the first American and second person in space on May 5, 1961, on a 15-minute sub-orbital flight. The first American to orbit the Earth was John Glenn, aboard Friendship 7 on February 20, 1962. The first American woman in space was Sally Ride, during Space Shuttle Challenger's mission STS-7, on June 18, 1983. In 1992 Mae Jemison became the first African American woman to travel in space aboard STS-47. |
664#25 | Astronaut | The first civilian in space was Valentina Tereshkova aboard Vostok 6 (she also became the first woman in space on that mission).
Tereshkova was only honorarily inducted into the USSR's Air Force, which did not accept female pilots at that time. A month later, Joseph Albert Walker became the first American civilian in space when his X-15 Flight 90 crossed the line, qualifying him by the international definition of spaceflight. Walker had joined the US Army Air Force but was not a member during his flight.
The first people in space who had never been a member of any country's armed forces were both Konstantin Feoktistov and Boris Yegorov aboard Voskhod 1. |
666#0 | Alkali metal | The alkali metals are a group (column) in the periodic table consisting of the chemical elements lithium (Li), sodium (Na), potassium (K), rubidium (Rb), caesium (Cs), and francium (Fr). This group lies in the s-block of the periodic table of elements as all alkali metals have their outermost electron in an s-orbital: this shared electron configuration results in their having very similar characteristic properties. Indeed, the alkali metals provide the best example of group trends in properties in the periodic table, with elements exhibiting well-characterised homologous behaviour. |
666#1 | Alkali metal | The alkali metals are all shiny, soft, highly reactive metals at standard temperature and pressure and readily lose their outermost electron to form cations with charge +1. They can all be cut easily with a knife due to their softness, exposing a shiny surface that tarnishes rapidly in air due to oxidation by atmospheric moisture and oxygen (and in the case of lithium, nitrogen). Because of their high reactivity, they must be stored under oil to prevent reaction with air, and are found naturally only in salts and never as the free elements. Caesium, the fifth alkali metal, is the most reactive of all the metals. In the modern IUPAC nomenclature, the alkali metals comprise the group 1 elements, excluding hydrogen (H), which is nominally a group 1 element but not normally considered to be an alkali metal as it rarely exhibits behaviour comparable to that of the alkali metals. All the alkali metals react with water, with the heavier alkali metals reacting more vigorously than the lighter ones. |
666#4 | Alkali metal | Sodium compounds have been known since ancient times; salt (sodium chloride) has been an important commodity in human activities, as testified by the English word "salary", referring to "salarium", money paid to Roman soldiers for the purchase of salt. While potash has been used since ancient times, it was not understood for most of its history to be a fundamentally different substance from sodium mineral salts. Georg Ernst Stahl obtained experimental evidence which led him to suggest the fundamental difference of sodium and potassium salts in 1702, and Henri-Louis Duhamel du Monceau was able to prove this difference in 1736. The exact chemical composition of potassium and sodium compounds, and the status as chemical element of potassium and sodium, was not known then, and thus Antoine Lavoisier did not include either alkali in his list of chemical elements in 1789. |
666#54 | Alkali metal | The alkali metals are among the most electropositive elements on the periodic table and thus tend to bond ionically to the most electronegative elements on the periodic table, the halogens (fluorine, chlorine, bromine, iodine, and astatine), forming salts known as the alkali metal halides. The reaction is very vigorous and can sometimes result in explosions. All twenty stable alkali metal halides are known; the unstable ones are not known, with the exception of sodium astatide, because of the great instability and rarity of astatine and francium. The most well-known of the twenty is certainly sodium chloride, otherwise known as common salt. All of the stable alkali metal halides have the formula MX where M is an alkali metal and X is a halogen. They are all white ionic crystalline solids that have high melting points. All the alkali metal halides are soluble in water except for lithium fluoride (LiF), which is insoluble in water due to its very high lattice enthalpy. The high lattice enthalpy of lithium fluoride is due to the small sizes of the Li and F ions, causing the electrostatic interactions between them to be strong: a similar effect occurs for magnesium fluoride, consistent with the diagonal relationship between lithium and magnesium. |
674#45 | Anatomy | Andreas Vesalius (1514–1564) (Latinized from Andries van Wezel), professor of anatomy at the University of Padua, is considered the founder of modern human anatomy. Originally from Brabant, Vesalius published the influential book "De humani corporis fabrica" ("the structure of the human body"), a large format book in seven volumes, in 1543. The accurate and intricately detailed illustrations, often in allegorical poses against Italianate landscapes, are thought to have been made by the artist Jan van Calcar, a pupil of Titian. |
676#2 | Andrei Tarkovsky | Tarkovsky's films include "Ivan's Childhood" (1962), "Andrei Rublev" (1966), "Solaris" (1972), "Mirror" (1975), and "Stalker" (1979). He directed the first five of his seven feature films in the Soviet Union; his last two films, "Nostalghia" (1983) and "The Sacrifice" (1986), were produced in Italy and Sweden, respectively. The films "Andrei Rublev", "Solaris", "Mirror", and "Stalker" are regularly listed among the greatest films of all time. |
676#8 | Andrei Tarkovsky | Tarkovsky's teacher and mentor was Mikhail Romm, who taught many film students who would later become influential film directors. In 1956 Tarkovsky directed his first student short film, "The Killers", from a short story of Ernest Hemingway. The short film "There Will Be No Leave Today" and the screenplay "Concentrate" followed in 1958 and 1959. |
676#11 | Andrei Tarkovsky | Tarkovsky's first feature film was "Ivan's Childhood" in 1962. He had inherited the film from director Eduard Abalov, who had to abort the project. The film earned Tarkovsky international acclaim and won the Golden Lion award at the Venice Film Festival in the year 1962. In the same year, on 30 September, his first son Arseny (called Senka in Tarkovsky's diaries) Tarkovsky was born. |
676#12 | Andrei Tarkovsky | In 1965, he directed the film "Andrei Rublev" about the life of Andrei Rublev, the fifteenth-century Russian icon painter. "Andrei Rublev" was not, except for a single screening in Moscow in 1966, immediately released after completion due to problems with Soviet authorities. Tarkovsky had to cut the film several times, resulting in several different versions of varying lengths. The film was widely released in the Soviet Union in a cut version in 1971. |
676#28 | Andrei Tarkovsky | Tarkovsky's first feature film was "Ivan's Childhood" in 1962. He then directed "Andrei Rublev" in 1966, "Solaris" in 1972, "Mirror" in 1975 and "Stalker" in 1979. The documentary "Voyage in Time" was produced in Italy in 1982, as was "Nostalghia" in 1983. His last film "The Sacrifice" was produced in Sweden in 1986. Tarkovsky was personally involved in writing the screenplays for all his films, sometimes with a cowriter. Tarkovsky once said that a director who realizes somebody else's screenplay without being involved in it becomes a mere illustrator, resulting in dead and monotonous films. |
676#35 | Andrei Tarkovsky | Tarkovsky has been the subject of several documentaries. Most notable is the 1988 documentary "Moscow Elegy", by Russian film director Alexander Sokurov. Sokurov's own work has been heavily influenced by Tarkovsky. The film consists mostly of narration over stock footage from Tarkovsky's films. "Directed by Andrei Tarkovsky" is 1988 documentary film by Michal Leszczylowski, an editor of the film "The Sacrifice". Film director Chris Marker produced the television documentary "One Day in the Life of Andrei Arsenevich" as an homage to Andrei Tarkovsky in 2000. |
677#17 | Ambiguity | Christianity and Judaism employ the concept of paradox synonymously with 'ambiguity'. Many Christians and Jews endorse Rudolf Otto's description of the sacred as 'mysterium tremendum et fascinans', the awe-inspiring mystery which fascinates humans.[dubious – discuss] The orthodox Catholic writer G. K. Chesterton regularly employed paradox to tease out the meanings in common concepts which he found ambiguous or to reveal meaning often overlooked or forgotten in common phrases. (The title of one of his most famous books, Orthodoxy, itself employing such a paradox.) |
680#26 | Aardvark | The Egyptian god Set is usually depicted with the head of an unidentified animal, whose similarity to an aardvark has been noted in scholarship. |
689#1 | Asia | In general terms, Asia is bounded on the east by the Pacific Ocean, on the south by the Indian Ocean, and on the north by the Arctic Ocean. The border of Asia with Europe is a historical and cultural construct, as there is no clear physical and geographical separation between them. It is somewhat arbitrary and has moved since its first conception in classical antiquity. The division of Eurasia into two continents reflects East–West cultural, linguistic, and ethnic differences, some of which vary on a spectrum rather than with a sharp dividing line. The most commonly accepted boundaries place Asia to the east of the Suez Canal separating it from Africa; and to the east of the Turkish Straits, the Ural Mountains and Ural River, and to the south of the Caucasus Mountains and the Caspian and Black Seas, separating it from Europe. |
689#23 | Asia | The coastal periphery was home to some of the world's earliest known civilizations, each of them developing around fertile river valleys. The civilizations in Mesopotamia, the Indus Valley and the Yellow River shared many similarities. These civilizations may well have exchanged technologies and ideas such as mathematics and the wheel. Other innovations, such as writing, seem to have been developed individually in each area. Cities, states and empires developed in these lowlands. |
689#29 | Asia | Asia is the largest continent on Earth. It covers 9% of the Earth's total surface area (or 30% of its land area), and has the largest coastline, at . Asia is generally defined as comprising the eastern four-fifths of Eurasia. It is located to the east of the Suez Canal and the Ural Mountains, and south of the Caucasus Mountains (or the Kuma–Manych Depression) and the Caspian and Black Seas. It is bounded on the east by the Pacific Ocean, on the south by the Indian Ocean and on the north by the Arctic Ocean. Asia is subdivided into 48 countries, three of them (Russia, Kazakhstan and Turkey) having part of their land in Europe. |
689#48 | Asia | , Hinduism has around 1.1 billion adherents. The faith represents around 25% of Asia's population and is the largest religion in Asia. However, it is mostly concentrated in South Asia. Over 80% of the populations of both India and Nepal adhere to Hinduism, alongside significant communities in Bangladesh, Pakistan, Bhutan, Sri Lanka and Bali, Indonesia. Many overseas Indians in countries such as Burma, Singapore and Malaysia also adhere to Hinduism.
Buddhism has a great following in mainland Southeast Asia and East Asia. Buddhism is the religion of the majority of the populations of Cambodia (96%), Thailand (95%), Burma (80–89%), Japan (36–96%), Bhutan (75–84%), Sri Lanka (70%), Laos (60–67%) and Mongolia (53–93%). Large Buddhist populations also exist in Singapore (33–51%), Taiwan (35–93%), South Korea (23–50%), Malaysia (19–21%), Nepal (9–11%), Vietnam (10–75%), China (20–50%), North Korea (2–14%), and small communities in India and Bangladesh. In many Chinese communities, Mahayana Buddhism is easily syncretized with Taoism, thus exact religious statistics is difficult to obtain and may be understated or overstated. The Communist-governed countries of China, Vietnam and North Korea are officially atheist, thus the number of Buddhists and other religious adherents may be under-reported. |
698#0 | Atlantic Ocean | The Atlantic Ocean is the second largest of the world's oceans, with an area of about . It covers approximately 20 percent of the Earth's surface and about 29 percent of its water surface area. It separates the "Old World" from the "New World". |
698#1 | Atlantic Ocean | The Atlantic Ocean occupies an elongated, S-shaped basin extending longitudinally between Europe and Africa to the east, and the Americas to the west. As one component of the interconnected global ocean, it is connected in the north to the Arctic Ocean, to the Pacific Ocean in the southwest, the Indian Ocean in the southeast, and the Southern Ocean in the south (other definitions describe the Atlantic as extending southward to Antarctica). The Equatorial Counter Current subdivides it into the North Atlantic Ocean and the South Atlantic Ocean at about 8°N. |
698#3 | Atlantic Ocean | The oldest known mentions of an "Atlantic" sea come from Stesichorus around mid-sixth century BC (Sch. A. R. 1. 211): "Atlantikoi pelágei" (Greek: Ἀτλαντικῷ πελάγει; English: 'the Atlantic sea'; etym. 'Sea of Atlantis') and in "The Histories" of Herodotus around 450 BC (Hdt. 1.202.4): "Atlantis thalassa" (Greek: Ἀτλαντὶς θάλασσα; English: 'Sea of Atlantis' or 'the Atlantis sea') where the name refers to "the sea beyond the pillars of Heracles" which is said to be part of the sea that surrounds all land. Thus, on one hand, the name refers to Atlas, the Titan in Greek mythology, who supported the heavens and who later appeared as a frontispiece in Medieval maps and also lent his name to modern atlases. On the other hand, to early Greek sailors and in Ancient Greek mythological literature such as the "Iliad" and the "Odyssey", this all-encompassing ocean was instead known as Oceanus, the gigantic river that encircled the world; in contrast to the enclosed seas well known to the Greeks: the Mediterranean and the Black Sea.
In contrast, the term "Atlantic" originally referred specifically to the Atlas Mountains in Morocco and the sea off the Strait of Gibraltar and the North African coast. The Greek word "thalassa" has been reused by scientists for the huge Panthalassa ocean that surrounded the supercontinent Pangaea hundreds of millions of years ago. |
698#9 | Atlantic Ocean | Including its marginal seas, the Atlantic covers an area of or 23.5% of the global ocean and has a volume of or 23.3% of the total volume of the earth's oceans. Excluding its marginal seas, the Atlantic covers and has a volume of . The North Atlantic covers (11.5%) and the South Atlantic (11.1%). The average depth is and the maximum depth, the Milwaukee Deep in the Puerto Rico Trench, is . |
698#10 | Atlantic Ocean | The bathymetry of the Atlantic is dominated by a submarine mountain range called the Mid-Atlantic Ridge (MAR). It runs from 87°N or south of the North Pole to the subantarctic Bouvet Island at 42°S. |
698#23 | Atlantic Ocean | On average, the Atlantic is the saltiest major ocean; surface water salinity in the open ocean ranges from 33 to 37 parts per thousand (3.3–3.7%) by mass and varies with latitude and season. Evaporation, precipitation, river inflow and sea ice melting influence surface salinity values. Although the lowest salinity values are just north of the equator (because of heavy tropical rainfall), in general the lowest values are in the high latitudes and along coasts where large rivers enter. Maximum salinity values occur at about 25° north and south, in subtropical regions with low rainfall and high evaporation. |
698#29 | Atlantic Ocean | In the North Atlantic, surface circulation is dominated by three inter-connected currents: the Gulf Stream which flows north-east from the North American coast at Cape Hatteras; the North Atlantic Current, a branch of the Gulf Stream which flows northward from the Grand Banks; and the Subpolar Front, an extension of the North Atlantic Current, a wide, vaguely defined region separating the subtropical gyre from the subpolar gyre. This system of currents transport warm water into the North Atlantic, without which temperatures in the North Atlantic and Europe would plunge dramatically.
North of the North Atlantic Gyre, the cyclonic North Atlantic Subpolar Gyre plays a key role in climate variability. It is governed by ocean currents from marginal seas and regional topography, rather than being steered by wind, both in the deep ocean and at sea level.
The subpolar gyre forms an important part of the global thermohaline circulation. Its eastern portion includes eddying branches of the North Atlantic Current which transport warm, saline waters from the subtropics to the north-eastern Atlantic. There this water is cooled during winter and forms return currents that merge along the eastern continental slope of Greenland where they form an intense (40–50 Sv) current which flows around the continental margins of the Labrador Sea. A third of this water become parts of the deep portion of the North Atlantic Deep Water (NADW). The NADW, in its turn, feed the meridional overturning circulation (MOC), the northward heat transport of which is threatened by anthropogenic climate change. Large variations in the subpolar gyre on a decade-century scale, associated with the North Atlantic oscillation, are especially pronounced in Labrador Sea Water, the upper layers of the MOC. |
698#40 | Atlantic Ocean | The opening of the Atlantic Ocean coincided with the initial break-up of the supercontinent Pangaea, both of which were initiated by the eruption of the Central Atlantic Magmatic Province (CAMP), one of the most extensive and voluminous large igneous provinces in Earth's history associated with the Triassic–Jurassic extinction event, one of Earth's major extinction events.
Theoliitic dikes, sills, and lava flows from the CAMP eruption at 200 Ma have been found in West Africa, eastern North America, and northern South America. The extent of the volcanism has been estimated to of which covered what is now northern and central Brazil. |
701#0 | Angola | Angola (; ), officially the Republic of Angola (; Kikongo, Kimbundu and ), is a west-coast country of south-central Africa. It is the seventh-largest country in Africa, bordered by Namibia to the south, the Democratic Republic of the Congo to the north, Zambia to the east, and the Atlantic Ocean to the west. Angola has an exclave province, the province of Cabinda that borders the Republic of the Congo and the Democratic Republic of the Congo. The capital and largest city of Angola is Luanda. |
701#2 | Angola | After a protracted anti-colonial struggle, independence was achieved in 1975 as the Marxist–Leninist People's Republic of Angola, a one-party state supported by the Soviet Union and Cuba. The civil war between the ruling People's Movement for the Liberation of Angola (MPLA) and the insurgent anti-communist National Union for the Total Independence of Angola (UNITA), supported by the United States and apartheid South Africa, lasted until 2002. The sovereign state has since become a relatively stable unitary, presidential constitutional republic. |
701#27 | Angola | At , Angola is the world's twenty-third largest country - comparable in size to Mali, or twice the size of France or of Texas. It lies mostly between latitudes 4° and 18°S, and longitudes 12° and 24°E. |
701#28 | Angola | Angola borders Namibia to the south, Zambia to the east, the Democratic Republic of the Congo to the north-east and the South Atlantic Ocean to the west. The coastal exclave of Cabinda in the north has borders with the Republic of the Congo to the north and with the Democratic Republic of the Congo to the south.
Angola's capital, Luanda, lies on the Atlantic coast in the northwest of the country. |
704#1 | Demographics of Angola | As a former overseas territory of Portugal until 1975, Angola possesses a Portuguese population of over 200,000, a number that has been growing from 2000 onwards, because of Angola's growing demand for qualified human resources. Besides the Portuguese, significant numbers of people from other European and from diverse Latin American countries (especially Brazil) can be found. From the 2000s, many Chinese have settled and started up small businesses, while at least as many have come as workers for large enterprises (construction or other). Observers claim that the Chinese community in Angola might include as many as 300,000 persons at the end of 2010, but reliable statistics are not at this stage available. In 1974/75, over 25,000 Cuban soldiers arrived in Angola to help the MPLA forces at the beginning of the Angolan Civil War. Once this was over, a massive development cooperation in the field of health and education brought in numerous civil personnel from Cuba. However, only a very small percentage of all these people has remained in Angola, either for personal reasons (intermarriage) or as professionals (e.g., medical doctors). |
736#80 | Albert Einstein | As Einstein later said, the reason for the development of general relativity was that the preference of inertial motions within special relativity was unsatisfactory, while a theory which from the outset prefers no state of motion (even accelerated ones) should appear more satisfactory. Consequently, in 1907 he published an article on acceleration under special relativity. In that article titled "On the Relativity Principle and the Conclusions Drawn from It", he argued that free fall is really inertial motion, and that for a free-falling observer the rules of special relativity must apply. This argument is called the equivalence principle. In the same article, Einstein also predicted the phenomena of gravitational time dilation, gravitational red shift and deflection of light. |
737#49 | Afghanistan | The population of Afghanistan was estimated at 29.2 million in 2017. Of this, 15 million are males and 14.2 million females. About 22% of them are urbanite and the remaining 78% live in rural areas. An additional 3 million or so Afghans are temporarily housed in neighboring Pakistan and Iran, most of whom were born and raised in those two countries. This makes the total Afghan population at around 33,332,025, and its current growth rate is 2.34%. This population is expected to reach 82 million by 2050 if current population trends continue. |
765#59 | Abortion | Soviet Russia (1919), Iceland (1935) and Sweden (1938) were among the first countries to legalize certain or all forms of abortion. In 1935 Nazi Germany, a law was passed permitting abortions for those deemed "hereditarily ill", while women considered of German stock were specifically prohibited from having abortions. Beginning in the second half of the twentieth century, abortion was legalized in a greater number of countries. |
771#35 | American Revolutionary War | Meanwhile, George III had given up on subduing America while Britain had a European war to fight. He did not welcome war with France, but he believed that Britain had made all necessary steps to avoid it and cited the British victories over France in the Seven Years' War as a reason to remain optimistic. Britain tried in vain to find a powerful ally to engage France, leaving it isolated, preventing Britain from focusing the majority of her efforts in one theater, and forcing a major diversion of military resources from America. Despite this, the King determined never to recognize American independence and to ravage the colonies indefinitely, or until they pleaded to return to the yoke of the Crown. Mahan argues that Britain's attempt to fight in multiple theaters simultaneously without major allies was fundamentally flawed, citing impossible mutual support, exposing the forces to defeat in detail. |
775#3 | Algorithm | The word "algorithm" itself derives from the 9th century mathematician Muḥammad ibn Mūsā al-Khwārizmī, Latinized "Algoritmi". A partial formalization of what would become the modern concept of algorithm began with attempts to solve the Entscheidungsproblem (decision problem) posed by David Hilbert in 1928. Later formalizations were framed as attempts to define "effective calculability" or "effective method". Those formalizations included the Gödel–Herbrand–Kleene recursive functions of 1930, 1934 and 1935, Alonzo Church's lambda calculus of 1936, Emil Post's Formulation 1 of 1936, and Alan Turing's Turing machines of 1936–37 and 1939. |
775#4 | Algorithm | The word 'algorithm' has its roots in Latinizing the name of Muhammad ibn Musa al-Khwarizmi in a first step to "algorismus". Al-Khwārizmī (, , c. 780–850) was a Persian mathematician, astronomer, geographer, and scholar in the House of Wisdom in Baghdad, whose name means 'the native of Khwarezm', a region that was part of Greater Iran and is now in Uzbekistan. |
775#11 | Algorithm | An "enumerably infinite set" is one whose elements can be put into one-to-one correspondence with the integers. Thus, Boolos and Jeffrey are saying that an algorithm implies instructions for a process that "creates" output integers from an "arbitrary" "input" integer or integers that, in theory, can be arbitrarily large. Thus an algorithm can be an algebraic equation such as "y = m + n" – two arbitrary "input variables" "m" and "n" that produce an output "y". But various authors' attempts to define the notion indicate that the word implies much more than this, something on the order of (for the addition example): |
783#7 | Alexander the Great | When Alexander was ten years old, a trader from Thessaly brought Philip a horse, which he offered to sell for thirteen talents. The horse refused to be mounted, and Philip ordered it away. Alexander however, detecting the horse's fear of its own shadow, asked to tame the horse, which he eventually managed. Plutarch stated that Philip, overjoyed at this display of courage and ambition, kissed his son tearfully, declaring: "My boy, you must find a kingdom big enough for your ambitions. Macedon is too small for you", and bought the horse for him. Alexander named it Bucephalas, meaning "ox-head". Bucephalas carried Alexander as far as India. When the animal died (because of old age, according to Plutarch, at age thirty), Alexander named a city after him, Bucephala. |
783#52 | Alexander the Great | On either 10 or 11 June 323 BC, Alexander died in the palace of Nebuchadnezzar II, in Babylon, at age 32. There are two different versions of Alexander's death and details of the death differ slightly in each. Plutarch's account is that roughly 14 days before his death, Alexander entertained admiral Nearchus, and spent the night and next day drinking with Medius of Larissa. He developed a fever, which worsened until he was unable to speak. The common soldiers, anxious about his health, were granted the right to file past him as he silently waved at them. In the second account, Diodorus recounts that Alexander was struck with pain after downing a large bowl of unmixed wine in honour of Heracles, followed by 11 days of weakness; he did not develop a fever and died after some agony. Arrian also mentioned this as an alternative, but Plutarch specifically denied this claim. |
783#82 | Alexander the Great | Green argues that there is little evidence in ancient sources that Alexander had much carnal interest in women; he did not produce an heir until the very end of his life. However, he was relatively young when he died, and Ogden suggests that Alexander's matrimonial record is more impressive than his father's at the same age. Apart from wives, Alexander had many more female companions. Alexander accumulated a harem in the style of Persian kings, but he used it rather sparingly, showing great self-control in "pleasures of the body". Nevertheless, Plutarch described how Alexander was infatuated by Roxana while complimenting him on not forcing himself on her. Green suggested that, in the context of the period, Alexander formed quite strong friendships with women, including Ada of Caria, who adopted him, and even Darius' mother Sisygambis, who supposedly died from grief upon hearing of Alexander's death. |
783#91 | Alexander the Great | Alexander and his exploits were admired by many Romans, especially generals, who wanted to associate themselves with his achievements. Polybius began his "Histories" by reminding Romans of Alexander's achievements, and thereafter Roman leaders saw him as a role model. Pompey the Great adopted the epithet "Magnus" and even Alexander's anastole-type haircut, and searched the conquered lands of the east for Alexander's 260-year-old cloak, which he then wore as a sign of greatness. Julius Caesar dedicated a Lysippean equestrian bronze statue but replaced Alexander's head with his own, while Octavian visited Alexander's tomb in Alexandria and temporarily changed his seal from a sphinx to Alexander's profile. The emperor Trajan also admired Alexander, as did Nero and Caracalla. The Macriani, a Roman family that in the person of Macrinus briefly ascended to the imperial throne, kept images of Alexander on their persons, either on jewelry, or embroidered into their clothes. |
791#6 | Asteroid | The first asteroid to be discovered, Ceres, was originally considered to be a new planet. This was followed by the discovery of other similar bodies, which, with the equipment of the time, appeared to be points of light, like stars, showing little or no planetary disc, though readily distinguishable from stars due to their apparent motions. This prompted the astronomer Sir William Herschel to propose the term "asteroid", coined in Greek as ἀστεροειδής, or "asteroeidēs", meaning 'star-like, star-shaped', and derived from the Ancient Greek "astēr" 'star, planet'. In the early second half of the nineteenth century, the terms "asteroid" and "planet" (not always qualified as "minor") were still used interchangeably. |
791#21 | Asteroid | Traditionally, small bodies orbiting the Sun were classified as comets, asteroids, or meteoroids, with anything smaller than one meter across being called a meteoroid. Beech and Steel's 1995 paper proposed a meteoroid definition including size limits. The term "asteroid", from the Greek word for "star-like", never had a formal definition, with the broader term minor planet being preferred by the International Astronomical Union. |
791#23 | Asteroid | In 2006, the term "small Solar System body" was also introduced to cover both most minor planets and comets. Other languages prefer "planetoid" (Greek for "planet-like"), and this term is occasionally used in English especially for larger minor planets such as the dwarf planets as well as an alternative for asteroids since they are not star-like. The word "planetesimal" has a similar meaning, but refers specifically to the small building blocks of the planets that existed when the Solar System was forming. The term "planetule" was coined by the geologist William Daniel Conybeare to describe minor planets, but is not in common use. The three largest objects in the asteroid belt, Ceres, Pallas, and Vesta, grew to the stage of protoplanets. Ceres is a dwarf planet, the only one in the inner Solar System. |
791#24 | Asteroid | When found, asteroids were seen as a class of objects distinct from comets, and there was no unified term for the two until "small Solar System body" was coined in 2006. The main difference between an asteroid and a comet is that a comet shows a coma due to sublimation of near surface ices by solar radiation. A few objects have ended up being dual-listed because they were first classified as minor planets but later showed evidence of cometary activity. Conversely, some (perhaps all) comets are eventually depleted of their surface volatile ices and become asteroid-like. A further distinction is that comets typically have more eccentric orbits than most asteroids; most "asteroids" with notably eccentric orbits are probably dormant or extinct comets. |
791#37 | Asteroid | The dwarf planet Ceres is by far the largest asteroid, with a diameter of . The next largest are 4 Vesta and 2 Pallas, both with diameters of just over . Vesta is the only main-belt asteroid that can, on occasion, be visible to the naked eye. On some rare occasions, a near-Earth asteroid may briefly become visible without technical aid; see 99942 Apophis. |
791#40 | Asteroid | Although their location in the asteroid belt excludes them from planet status, the three largest objects, Ceres, Vesta, and Pallas, are intact protoplanets that share many characteristics common to planets, and are atypical compared to the majority of "potato"-shaped asteroids. The fourth largest asteroid, Hygiea, has an undifferentiated interior, like the majority of asteroids. Between them, the four largest asteroids constitute half the mass of the asteroid belt. |
791#46 | Asteroid | The physical composition of asteroids is varied and in most cases poorly understood. Ceres appears to be composed of a rocky core covered by an icy mantle, where Vesta is thought to have a nickel-iron core, olivine mantle, and basaltic crust. 10 Hygiea, however, which appears to have a uniformly primitive composition of carbonaceous chondrite, is thought to be the largest undifferentiated asteroid. Most of the smaller asteroids are thought to be piles of rubble held together loosely by gravity, though the largest are probably solid. Some asteroids have moons or are co-orbiting binaries: Rubble piles, moons, binaries, and scattered asteroid families are thought to be the results of collisions that disrupted a parent asteroid, or, possibly, a planet. |
798#8 | Aries (constellation) | The obsolete constellations introduced in Aries (Musca Borealis, Lilium, Vespa, and Apes) have all been composed of the northern stars. Musca Borealis was created from the stars 33 Arietis, 35 Arietis, 39 Arietis, and 41 Arietis. In 1612, Petrus Plancius introduced Apes, a constellation representing a bee. In 1624, the same stars were used by Jakob Bartsch to create a constellation called Vespa, representing a wasp. In 1679 Augustin Royer used these stars for his constellation Lilium, representing the fleur-de-lis. None of these constellation became widely accepted. Johann Hevelius renamed the constellation "Musca" in 1690 in his "Firmamentum Sobiescianum". To differentiate it from Musca, the southern fly, it was later renamed Musca Borealis but it did not gain acceptance and its stars were ultimately officially reabsorbed into Aries. |
799#0 | Aquarius (constellation) | Aquarius is a constellation of the zodiac, situated between Capricornus and Pisces. Its name is Latin for "water-carrier" or "cup-carrier", and its symbol is , a representation of water. Aquarius is one of the oldest of the recognized constellations along the zodiac (the Sun's apparent path). It was one of the 48 constellations listed by the 2nd century astronomer Ptolemy, and it remains one of the 88 modern constellations. It is found in a region often called the Sea due to its profusion of constellations with watery associations such as Cetus the whale, Pisces the fish, and Eridanus the river. |
800#0 | Anime | The word "anime" is the Japanese term for "animation", which means all forms of animated media. Outside Japan, "anime" refers specifically to animation from Japan or as a Japanese-disseminated animation style often characterized by colorful graphics, vibrant characters and fantastical themes. The culturally abstract approach to the word's meaning may open up the possibility of anime produced in countries other than Japan. For simplicity, many Westerners strictly view anime as a Japanese animation product. Some scholars suggest defining anime as specifically or quintessentially Japanese may be related to a new form of Orientalism. |
800#3 | Anime | The anime industry consists of over 430 production studios, including major names like Studio Ghibli, Gainax, and Toei Animation. Despite comprising only a fraction of Japan's domestic film market, anime makes up a majority of Japanese DVD sales. It has also seen international success after the rise of English-dubbed programming. This rise in international popularity has resulted in non-Japanese productions using the anime art style. Whether these works are anime-influenced animation or proper anime is a subject for debate amongst fans. |
800#5 | Anime | The etymology of the word "anime" is disputed. The English term "animation" is written in Japanese "katakana" as ("animēshon", ) and is ("anime") in its shortened form. The pronunciation of "anime" in Japanese differs from pronunciations in other languages such as Standard English (pronunciation: ), which has different vowels and stress with regards to Japanese, where each mora carries equal stress. As with a few other Japanese words such as "saké", "Pokémon", and "Kobo Abé," English-language texts sometimes spell "anime" as "animé" (as in French), with an acute accent over the final "e", to cue the reader to pronounce the letter, not to leave it silent as Standard English orthography may suggest. |
800#19 | Anime | Japanese animation studios were pioneers of many limited animation techniques, and have given anime a distinct set of conventions. Unlike Disney animation, where the emphasis is on the movement, anime emphasizes the art quality and let limited animation techniques make up for the lack of time spent on movement. Such techniques are often used not only to meet deadlines but also as artistic devices. Anime scenes place emphasis on achieving three-dimensional views, and backgrounds are instrumental in creating the atmosphere of the work. The backgrounds are not always invented and are occasionally based on real locations, as exemplified in "Howl's Moving Castle" and "The Melancholy of Haruhi Suzumiya". Oppliger stated that anime is one of the rare mediums where putting together an all-star cast usually comes out looking "tremendously impressive". |
803#5 | Arabic | Arabic is a Central Semitic language, closely related to the Northwest Semitic languages (Aramaic, Hebrew, Ugaritic, and Phoenician), the Ancient South Arabian languages, and various other Semitic languages of Arabia such as Dadanitic. The Semitic languages changed a great deal between Proto-Semitic and the establishment of the Central Semitic languages, particularly in grammar. Innovations of the Central Semitic languages—all maintained in Arabic—include:
There are several features which Classical Arabic, the modern Arabic varieties, as well as the Safaitic and Hismaic inscriptions share which are unattested in any other Central Semitic language variety, including the Dadanitic and Taymanitic languages of the northern Hejaz. These features are evidence of common descent from a hypothetical ancestor, Proto-Arabic. The following features can be reconstructed with confidence for Proto-Arabic: |
803#19 | Arabic | The sociolinguistic situation of Arabic in modern times provides a prime example of the linguistic phenomenon of diglossia, which is the normal use of two separate varieties of the same language, usually in different social situations. In the case of Arabic, educated Arabs of any nationality can be assumed to speak both their school-taught Standard Arabic as well as their native, mutually unintelligible "dialects"; these dialects linguistically constitute separate languages which may have dialects of their own. When educated Arabs of different dialects engage in conversation (for example, a Moroccan speaking with a Lebanese), many speakers code-switch back and forth between the dialectal and standard varieties of the language, sometimes even within the same sentence. Arabic speakers often improve their familiarity with other dialects via music or film. |
803#20 | Arabic | The issue of whether Arabic is one language or many languages is politically charged, in the same way it is for the varieties of Chinese, Hindi and Urdu, Serbian and Croatian, Scots and English, etc. In contrast to speakers of Hindi and Urdu who claim they cannot understand each other even when they can, speakers of the varieties of Arabic will claim they can all understand each other even when they cannot. The issue of diglossia between spoken and written language is a significant complicating factor: A single written form, significantly different from any of the spoken varieties learned natively, unites a number of sometimes divergent spoken forms. For political reasons, Arabs mostly assert that they all speak a single language, despite significant issues of mutual incomprehensibility among differing spoken versions. |
803#46 | Arabic | According to Charles A. Ferguson, the following are some of the characteristic features of the koiné that underlies all of the modern dialects outside the Arabian peninsula. Although many other features are common to most or all of these varieties, Ferguson believes that these features in particular are unlikely to have evolved independently more than once or twice and together suggest the existence of the koine:Of the 29 Proto-Semitic consonants, only one has been lost: , which merged with . But the consonant is still found in many colloquial Arabic dialects. Various other consonants have changed their sound too, but have remained distinct. An original lenited to , and – consistently attested in pre-Islamic Greek transcription of Arabic languages – became palatalized to or by the time of the Quran and , , or after early Muslim conquests and in MSA (see Arabic phonology#Local variations for more detail). An original voiceless alveolar lateral fricative became . Its emphatic counterpart was considered by Arabs to be the most unusual sound in Arabic (Hence the Classical Arabic's appellation ' or "language of the '"); for most modern dialects, it has become an emphatic stop with loss of the laterality or with complete loss of any pharyngealization or velarization, . (The classical "" pronunciation of pharyngealization still occurs in the Mehri language and the similar sound without velarization, , exists in other Modern South Arabian languages.) |
803#58 | Arabic | The phoneme is represented by the Arabic letter ' () and has many standard pronunciations. is characteristic of north Algeria, Iraq, also in most of the Arabian peninsula but with an allophonic in some positions; occurs in most of the Levant and most North Africa; and is used in most of Egypt and some regions in Yemen and Oman. Generally this corresponds with the pronunciation in the colloquial dialects. In some regions in Sudan and Yemen, as well as in some Sudanese and Yemeni dialects, it may be either or , representing the original pronunciation of Classical Arabic. Foreign words containing may be transcribed with , , , , , or , mainly depending on the regional spoken variety of Arabic or the commonly diacriticized Arabic letter. Note also that in northern Egypt, where the Arabic letter ' () is normally pronounced , a separate phoneme , which may be transcribed with , occurs in a small number of mostly non-Arabic loanwords, e.g., 'jacket'. |
844#0 | Amsterdam | Amsterdam (, ; ) is the capital city and most populous municipality of the Netherlands. Its status as the capital is mandated by the Constitution of the Netherlands, although it is not the seat of the government, which is The Hague. Amsterdam has a population of 851,373 within the city proper, 1,351,587 in the urban area and 2,410,960 in the metropolitan area. The city is located in the province of North Holland in the west of the country but is not its capital, which is Haarlem. The metropolitan area comprises much of the northern part of the Randstad, one of the larger conurbations in Europe, with a population of approximately 8 million. |
844#99 | Amsterdam | Under the Dutch Constitution, Amsterdam is the capital of the Netherlands. Since the 1983 constitutional revision, the constitution mentions "Amsterdam" and "capital" in chapter 2, article 32: The king's confirmation by oath and his coronation take place in "the capital Amsterdam" (""de hoofdstad Amsterdam""). Previous versions of the constitution only mentioned "the city of Amsterdam" (""de stad Amsterdam""). For a royal investiture, therefore, the States General of the Netherlands (the Dutch Parliament) meets for a ceremonial joint session in Amsterdam. The ceremony traditionally takes place at the Nieuwe Kerk on Dam Square, immediately after the former monarch has signed the act of abdication at the nearby Royal Palace of Amsterdam. Normally, however, the Parliament sits in The Hague, the city which has historically been the seat of the Dutch government, the Dutch monarchy, and the Dutch supreme court. Foreign embassies are also located in The Hague. |
854#0 | Anatolia | Anatolia (from Greek '; "east" or "[sun]rise"), also known as Asia Minor (Medieval and Modern Greek: ', "small Asia"; ), Asian Turkey, the Anatolian peninsula, or the Anatolian plateau, is the westernmost protrusion of Asia, which makes up the majority of modern-day Turkey. The region is bounded by the Black Sea to the north, the Mediterranean Sea to the south, the Armenian Highlands to the east, and the Aegean Sea to the west. The Sea of Marmara forms a connection between the Black and Aegean Seas through the Bosphorus and Dardanelles straits and separates Anatolia from Thrace on the European mainland. |
854#1 | Anatolia | The eastern border of Anatolia is traditionally held to be a line between the Gulf of Alexandretta and the Black Sea, bounded by the Armenian Highland to the east and Mesopotamia to the southeast. Thus, traditionally Anatolia is the territory that comprises approximately the western two-thirds of the Asian part of Turkey. Nowadays, Anatolia is also often considered to be synonymous with Asian Turkey, which comprises almost the entire country; its eastern and southeastern borders are widely taken to be Turkey's eastern border. By some definitions, the area called the Armenian highlands lies beyond the boundary of the Anatolian plateau. The official name of this inland region is the Eastern Anatolia Region. |
854#12 | Anatolia | Turkey's First Geography Congress in 1941 created two regions to the east of the Gulf of Iskenderun-Black Sea line named the Eastern Anatolia Region and the Southeastern Anatolia Region, the former largely corresponding to the western part of the Armenian Highland, 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 Armenian presence as part of a campaign of genocide denial embarked upon by the newly established Turkish government and what Hovannisian calls its "foreign collaborators". |
856#28 | Apple Inc. | Mac OS X, based on NeXT's OPENSTEP and BSD Unix, was released on March 24, 2001, after several years of development. Aimed at consumers and professionals alike, Mac OS X aimed to combine the stability, reliability, and security of Unix with the ease of use afforded by an overhauled user interface. To aid users in migrating from Mac OS 9, the new operating system allowed the use of OS 9 applications within Mac OS X via the Classic Environment. |
863#26 | American Civil War | The election of Lincoln caused the legislature of South Carolina to call a state convention to consider secession. Prior to the war, South Carolina did more than any other Southern state to advance the notion that a state had the right to nullify federal laws, and even to secede from the United States. The convention summoned unanimously voted to secede on December 20, 1860, and adopted the "Declaration of the Immediate Causes Which Induce and Justify the Secession of South Carolina from the Federal Union". It argued for states' rights for slave owners in the South, but contained a complaint about states' rights in the North in the form of opposition to the Fugitive Slave Act, claiming that Northern states were not fulfilling their federal obligations under the Constitution. The "cotton states" of Mississippi, Florida, Alabama, Georgia, Louisiana, and Texas followed suit, seceding in January and February 1861. |
902#44 | Atom | The actual mass of an atom at rest is often expressed using the unified atomic mass unit (u), also called dalton (Da). This unit is defined as a twelfth of the mass of a free neutral atom of carbon-12, which is approximately . Hydrogen-1 (the lightest isotope of hydrogen which is also the nuclide with the lowest mass) has an atomic weight of 1.007825 u. The value of this number is called the atomic mass. A given atom has an atomic mass approximately equal (within 1%) to its mass number times the atomic mass unit (for example the mass of a nitrogen-14 is roughly 14 u). However, this number will not be exactly an integer except in the case of carbon-12 (see below). The heaviest stable atom is lead-208, with a mass of . |
904#27 | Aluminium | Aluminium's per-particle abundance in the Solar System is 3.15 ppm (parts per million). It is the twelfth most abundant of all elements and third most abundant among the elements that have odd atomic numbers, after hydrogen and nitrogen. The only stable isotope of aluminium, Al, is the eighteenth most abundant nucleus in the Universe. It is created almost entirely after fusion of carbon in massive stars that will later become Type II supernovae: this fusion creates Mg, which, upon capturing free protons and neutrons becomes aluminium. Some smaller quantities of Al are created in hydrogen burning shells of evolved stars, where Mg can capture free protons. Essentially all aluminium now in existence is Al; Al was present in the early Solar System but is currently extinct. However, the trace quantities of Al that do exist are the most common gamma ray emitter in the interstellar gas. |
909#18 | Anglican Communion | The oldest-surviving Anglican church building outside the British Isles (Britain and Ireland) is St Peter's Church in St. George's, Bermuda, established in 1612 (though the actual building had to be rebuilt several times over the following century). This is also the oldest surviving non-Roman Catholic church in the New World. It remained part of the Church of England until 1978 when the Anglican Church of Bermuda separated. The Church of England was the established church not only in England, but in its trans-Oceanic colonies. |
922#12 | Anxiety | The philosopher Søren Kierkegaard, in "The Concept of Anxiety" (1844), described anxiety or dread associated with the "dizziness of freedom" and suggested the possibility for positive resolution of anxiety through the self-conscious exercise of responsibility and choosing. In "Art and Artist" (1932), the psychologist Otto Rank wrote that the psychological trauma of birth was the pre-eminent human symbol of existential anxiety and encompasses the creative person's simultaneous fear of – and desire for – separation, individuation, and differentiation. |
984#40 | Agatha Christie | During the Second World War, Christie wrote two novels, "Curtain" and "Sleeping Murder", intended as the last cases of these two great detectives, Hercule Poirot and Miss Marple. Both books were sealed in a bank vault for over thirty years and were released for publication by Christie only at the end of her life, when she realised that she could not write any more novels. These publications came on the heels of the success of the film version of "Murder on the Orient Express" in 1974. |
1022#12 | Auto racing | Turismo Carretera (Road racing, lit., Road Touring) is a popular touring car racing series in Argentina, and the oldest car racing series still active in the world.
The first TC competition took place in 1937 with 12 races, each in a different province. Future Formula One star Juan Manuel Fangio (Chevrolet) won the 1940 and 1941 editions of the TC. It was during this time that the series' Chevrolet-Ford rivalry began, with Ford acquiring most of its historical victories. |
1055#0 | All Souls' Day | In Christianity, All Souls' Day or the Commemoration of All the Faithful Departed, that is, of the souls of all Christians who have died, follows All Saints' Day. Observing Christians typically remember deceased relatives on the day. In Western Christianity the annual celebration is now held on 1 November and is associated with the season of Allhallowtide, including All Saints' Day (1 November) and its vigil, Halloween (31 October). In the Catholic Church, "the faithful" refers specifically to baptized Catholics; "all souls" commemorates the church penitent of souls in Purgatory, whereas "all saints" commemorates the church triumphant of saints in Heaven. In the liturgical books of the western Catholic Church (the Latin Church) it is called the Commemoration of All the Faithful Departed (), and is celebrated annually on 2 November. In the ordinary form of the Roman Rite, as well as in the Personal Ordinariates established by Benedict XVI for former Anglicans, it remains on 2 November if this date falls on a Sunday; in the 1962−1969 form of the Roman Rite, use of which is still authorized, it is transferred to Monday, 3 November. On this day in particular, Catholics pray for the dead. In the Church of England it is called The Commemoration of the Faithful Departed (All Souls' Day) and is an optional celebration; Anglicans view All Souls' Day as an extension of the observance of All Saints' Day and it serves to "remember those who have died", in connection with the theological doctrines of the resurrection of the body and the Communion of Saints. In the Eastern Orthodox Church and the associated Eastern Catholic Churches, it is celebrated several times during the year and is not associated with the month of November. |
1055#15 | All Souls' Day | In countries where All Saints' Day is not a holy day of obligation attendance at an evening Mass of All Saints on Saturday 1 November satisfies the Sunday obligation. In England and Wales, where holy days of obligation that fall on a Saturday are transferred to the following day, if 2 November is a Sunday, the solemnity of All Saints is transferred to that date, and All Souls Day is transferred to 3 November. In pre-1970 forms of the Roman Rite, still observed by some, if All Souls Day falls on a Sunday, it is always transferred to 3 November. |
1064#5 | Almond | The almond is native to the Mediterranean climate region of the Middle East, from Syria and Turkey eastward to Pakistan. It was spread by humans in ancient times along the shores of the Mediterranean into northern Africa and southern Europe, and more recently transported to other parts of the world, notably California, United States. The wild form of domesticated almond grows in parts of the Levant. |
1064#13 | Almond | In the United States, production is concentrated in California where and six different almond varieties were under cultivation in 2017, with a yield of of shelled almonds. California production is marked by a period of intense pollination during late winter by rented commercial bees transported by truck across the United States to almond groves, requiring more than half of the total US honeybee population. The value of total US exports of shelled almonds in 2016 was $3.2 billion. |
1064#14 | Almond | Spain has diverse commercial cultivars of almonds grown in Catalonia, Valencia, Murcia, Andalusia, and Aragón regions, and the Balearic Islands. Production in 2016 declined 2% nationally compared to 2015 production data. |
1130#6 | Avicenna | Avicenna was born in Afshana, a village near Bukhara (in present-day Uzbekistan), the capital of the Samanids, a Persian dynasty in Central Asia and Greater Khorasan. His mother, named Sitāra, was from Bukhara; his father, Abdullāh, was a respected Ismaili scholar from Balkh, an important town of the Samanid Empire, in what is today Balkh Province, Afghanistan. His father worked in the government of Samanid in the village Kharmasain, a Sunni regional power. After five years, his younger brother, Mahmoud, was born. Avicenna first began to learn the Quran and literature in such a way that when he was ten years old he had essentially learned all of them. |
1130#12 | Avicenna | At 22 years old, Avicenna lost his father. The Samanid dynasty came to its end in December 1004. Avicenna seems to have declined the offers of Mahmud of Ghazni, and proceeded westwards to Urgench in modern Turkmenistan, where the vizier, regarded as a friend of scholars, gave him a small monthly stipend. The pay was small, however, so Ibn Sina wandered from place to place through the districts of Nishapur and Merv to the borders of Khorasan, seeking an opening for his talents. Qabus, the generous ruler of Tabaristan, himself a poet and a scholar, with whom Ibn Sina had expected to find asylum, was on about that date (1012) starved to death by his troops who had revolted. Avicenna himself was at this time stricken by a severe illness. Finally, at Gorgan, near the Caspian Sea, Avicenna met with a friend, who bought a dwelling near his own house in which Avicenna lectured on logic and astronomy. Several of his treatises were written for this patron; and the commencement of his "Canon of Medicine" also dates from his stay in Hyrcania. |
1130#13 | Avicenna | Avicenna subsequently settled at Rey, in the vicinity of modern Tehran, the home town of Rhazes; where Majd Addaula, a son of the last Buwayhid emir, was nominal ruler under the regency of his mother (Seyyedeh Khatun). About thirty of Ibn Sina's shorter works are said to have been composed in Rey. Constant feuds which raged between the regent and her second son, Shams al-Daula, however, compelled the scholar to quit the place. After a brief sojourn at Qazvin he passed southwards to Hamadãn where Shams al-Daula, another Buwayhid emir, had established himself. At first, Ibn Sina entered into the service of a high-born lady; but the emir, hearing of his arrival, called him in as medical attendant, and sent him back with presents to his dwelling. Ibn Sina was even raised to the office of vizier. The emir decreed that he should be banished from the country. Ibn Sina, however, remained hidden for forty days in sheikh Ahmed Fadhel's house, until a fresh attack of illness induced the emir to restore him to his post. Even during this perturbed time, Ibn Sina persevered with his studies and teaching. Every evening, extracts from his great works, the "Canon" and the "Sanatio", were dictated and explained to his pupils. On the death of the emir, Ibn Sina ceased to be vizier and hid himself in the house of an apothecary, where, with intense assiduity, he continued the composition of his works. |
1130#29 | Avicenna | Avicenna was a devout Muslim and sought to reconcile rational philosophy with Islamic theology. His aim was to prove the existence of God and His creation of the world scientifically and through reason and logic. Avicenna's views on Islamic theology (and philosophy) were enormously influential, forming part of the core of the curriculum at Islamic religious schools until the 19th century. Avicenna wrote a number of short treatises dealing with Islamic theology. These included treatises on the prophets (whom he viewed as "inspired philosophers"), and also on various scientific and philosophical interpretations of the Quran, such as how Quranic cosmology corresponds to his own philosophical system. In general these treatises linked his philosophical writings to Islamic religious ideas; for example, the body's afterlife. |
1130#33 | Avicenna | While he was imprisoned in the castle of Fardajan near Hamadhan, Avicenna wrote his famous "Floating Man" – literally falling man – thought experiment to demonstrate human self-awareness and the substantiality and immateriality of the soul. Avicenna believed his "Floating Man" thought experiment demonstrated that the soul is a substance, and claimed humans cannot doubt their own consciousness, even in a situation that prevents all sensory data input. The thought experiment told its readers to imagine themselves created all at once while suspended in the air, isolated from all , which includes no sensory contact with even their own bodies. He argued that, in this scenario, one would still have self-consciousness. Because it is conceivable that a person, suspended in air while cut off from sense experience, would still be capable of determining his own existence, the thought experiment points to the conclusions that the soul is a perfection, independent of the body, and an immaterial substance. The conceivability of this "Floating Man" indicates that the soul is perceived intellectually, which entails the soul's separateness from the body. Avicenna referred to the living human intelligence, particularly the active intellect, which he believed to be the hypostasis by which God communicates truth to the human mind and imparts order and intelligibility to nature. Following is an English translation of the argument: |
1130#59 | Avicenna | In 1980, the Soviet Union, which then ruled his birthplace Bukhara, celebrated the thousandth anniversary of Avicenna's birth by circulating various commemorative stamps with artistic illustrations, and by erecting a bust of Avicenna based on anthropological research by Soviet scholars.
Near his birthplace in Qishlak Afshona, some north of Bukhara, a training college for medical staff has been named for him.
On the grounds is a museum dedicated to his life, times and work.
The Avicenna Prize, established in 2003, is awarded every two years by UNESCO and rewards individuals and groups for their achievements in the field of ethics in science.
The aim of the award is to promote ethical reflection on issues raised by advances in science and technology, and to raise global awareness of the importance of ethics in science. |
1132#0 | The Ashes | The Ashes is a Test cricket series played between England and Australia. The Ashes are regarded as being held by the team that most recently won the Test series. If the test series is drawn, the team that currently holds the Ashes retains the trophy. The term originated in a satirical obituary published in a British newspaper, "The Sporting Times", immediately after Australia's 1882 victory at The Oval, its first Test win on English soil. The obituary stated that English cricket had died, and "the body will be cremated and the ashes taken to Australia". The mythical ashes immediately became associated with the 1882–83 series played in Australia, before which the English captain Ivo Bligh had vowed to "regain those ashes". The English media therefore dubbed the tour "the quest to regain the Ashes". |
1170#0 | Architect | An architect is a person who plans, designs and reviews the construction of buildings. To "practice architecture" means to provide services in connection with the design of buildings and the space within the site surrounding the buildings, that have as their principal purpose human occupancy or use. Etymologically, "architect" derives from the Latin "architectus", which derives from the Greek ("arkhi-", chief + "tekton", builder), i.e., chief builder. |
1193#9 | Agrarianism | In France, the Hunting, Fishing, Nature, Tradition party is a moderate conservative, agrarianist party, reaching a peak of 4.23% in the French presidential election, 2002. It would later on become affiliated to France's main conservative party, Union for a Popular Movement. |
1201#1 | American Sign Language | ASL originated in the early 19th century in the American School for the Deaf (ASD) in Hartford, Connecticut, from a situation of language contact. Since then, ASL use has propagated widely via schools for the deaf and Deaf community organizations. Despite its wide use, no accurate count of ASL users has been taken, though reliable estimates for American ASL users range from 250,000 to 500,000 persons, including a number of children of deaf adults. ASL users face stigma due to beliefs in the superiority of oral language to sign language, compounded by the fact that ASL is often glossed in English due to the lack of a standard writing system. |
1201#3 | American Sign Language | ASL emerged as a language in the American School for the Deaf (ASD), founded in 1817. This school brought together Old French Sign Language, various village sign languages, and home sign systems; ASL was created in this situation of language contact. ASL was influenced by its forerunners but distinct from all of them. |
1201#4 | American Sign Language | The influence of French Sign Language (LSF) on ASL is readily apparent; for example, it has been found that about 58% of signs in modern ASL are cognate to Old French Sign Language signs. However, this is far less than the standard 80% measure used to determine whether related languages are actually dialects. This suggests that nascent ASL was highly affected by the other signing systems brought by the ASD students, despite the fact that the school's original director Laurent Clerc taught in LSF. In fact, Clerc reported that he often learned the students' signs rather than conveying LSF:
It has been proposed that ASL is a creole with LSF as the superstrate language and with the native village sign languages as substrate languages. However, more recent research has shown that modern ASL does not share many of the structural features that characterize creole languages. ASL may have begun as a creole and then undergone structural change over time, but it is also possible that it was never a creole-type language. There are modality-specific reasons that sign languages tend towards agglutination, for example the ability to simultaneously convey information via the face, head, torso, and other body parts. This might override creole characteristics such as the tendency towards isolating morphology. Additionally, Clerc and Thomas Hopkins Gallaudet may have used an artificially constructed form of manually coded language in instruction rather than true LSF. |
1201#10 | American Sign Language | The largest group of students during the first seven decades of the school were from Martha's Vineyard, and they brought MVSL with them. There were also 44 students from around Henniker, New Hampshire, and 27 from the Sandy River valley in Maine, each of which had their own village sign language. Other students brought knowledge of their own home signs. Laurent Clerc, the first teacher at ASD, taught using French Sign Language (LSF), which itself had developed in the Parisian school for the deaf established in 1755. From this situation of language contact, a new language emerged, now known as ASL.
More schools for the deaf were founded after ASD, and knowledge of ASL spread to these schools. In addition, the rise of Deaf community organizations bolstered the continued use of ASL. Societies such as the National Association of the Deaf and the National Fraternal Society of the Deaf held national conventions that attracted signers from across the country. This all contributed to ASL's wide use over a large geographical area, atypical of a sign language. |
1201#15 | American Sign Language | ASL is used throughout Anglo-America. This contrasts with Europe, where a variety of sign languages are used within the same continent. The unique situation of ASL seems to have been caused by the proliferation of ASL through schools influenced by the American School for the Deaf, wherein ASL originated, and the rise of community organizations for the Deaf. |
1207#0 | Amino acid | Amino acids are organic compounds containing amine (-NH) and carboxyl (-COOH) functional groups, along with a side chain (R group) specific to each amino acid. The key elements of an amino acid are carbon (C), hydrogen (H), oxygen (O), and nitrogen (N), although other elements are found in the side chains of certain amino acids. About 500 naturally occurring amino acids are known (though only 20 appear in the genetic code) and can be classified in many ways. They can be classified according to the core structural functional groups' locations as alpha- (α-), beta- (β-), gamma- (γ-) or delta- (δ-) amino acids; other categories relate to polarity, pH level, and side chain group type (aliphatic, acyclic, aromatic, containing hydroxyl or sulfur, etc.). In the form of proteins, amino acid residues form the second-largest component (water is the largest) of human muscles and other tissues. Beyond their role as residues in proteins, amino acids participate in a number of processes such as neurotransmitter transport and biosynthesis. |
1207#9 | Amino acid | The alpha amino acids are the most common form found in nature, but only when occurring in the -isomer. The alpha carbon is a chiral carbon atom, with the exception of glycine which has two indistinguishable hydrogen atoms on the alpha carbon. Therefore, all alpha amino acids but glycine can exist in either of two enantiomers, called or amino acids, which are mirror images of each other ("see also Chirality"). While -amino acids represent all of the amino acids found in proteins during translation in the ribosome, -amino acids are found in some proteins produced by enzyme posttranslational modifications after translation and translocation to the endoplasmic reticulum, as in exotic sea-dwelling organisms such as cone snails. They are also abundant components of the peptidoglycan cell walls of bacteria, and -serine may act as a neurotransmitter in the brain. -amino acids are used in racemic crystallography to create centrosymmetric crystals, which (depending on the protein) may allow for easier and more robust protein structure determination. The and convention for amino acid configuration refers not to the optical activity of the amino acid itself but rather to the optical activity of the isomer of glyceraldehyde from which that amino acid can, in theory, be synthesized (-glyceraldehyde is dextrorotatory; -glyceraldehyde is levorotatory).
In alternative fashion, the "(S)" and "(R)" designators are used to indicate the absolute stereochemistry. Almost all of the amino acids in proteins are "(S)" at the α carbon, with cysteine being "(R)" and glycine non-chiral. Cysteine has its side chain in the same geometric position as the other amino acids, but the "R/S" terminology is reversed because of the higher atomic number of sulfur compared to the carboxyl oxygen gives the side chain a higher priority, whereas the atoms in most other side chains give them lower priority. |
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