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1000
Hercule Poirot
Hercule Poirot ( ; ] ) is a fictional Belgian detective, created by Agatha Christie. Poirot is one of Christie's most famous and long-lived characters, appearing in 33 novels, one play ("Black Coffee"), and more than 50 short stories published between 1920 and 1975.
1002
Miss Marple
Jane Marple, usually referred to as Miss Marple, is a fictional character appearing in 12 of Agatha Christie's crime novels and in 20 short stories. Miss Marple is an elderly spinster who lives in the village of St. Mary Mead and acts as an amateur consulting detective. Alongside Hercule Poirot, she is one of the most loved and famous of Christie's characters and has been portrayed numerous times on screen. Her first appearance was in a short story published in "The Royal Magazine" in December 1927, "The Tuesday Night Club", which later became the first chapter of "The Thirteen Problems" (1932). Her first appearance in a full-length novel was in "The Murder at the Vicarage" in 1930.
1004
April
April is the fourth month of the year in the Gregorian calendar, the fifth in the early Julian and the first month to have the length of 30 days.
1005
August
August is the eighth month of the year in the Julian and Gregorian calendars, falling between July and September, and the fifth month to have the length of 31 days. It was originally named "Sextilis" in Latin because it was the sixth month in the original ten-month Roman calendar under Romulus in 753 BC, and March was the first month of the year. About 700 BC, it became the eighth month when January and February were added to the year before March by King Numa Pompilius, who also gave it 29 days. Julius Caesar added two days when he created the Julian calendar in 45 BC, giving it its modern length of 31 days. In 8 BC, it was renamed in honor of Augustus. According to a Senatus consultum quoted by Macrobius, he chose this month because it was the time of several of his great triumphs, including the conquest of Egypt.
1006
Aaron
Aaron (Hebrew: אַהֲרֹן‎ ; or ) is a prophet, high priest, and the brother of Moses in the Abrahamic religions (elder brother in the case of Judaism).
1008
April 6
April 6 is the day of the year in the Gregorian calendar.
1009
April 12
April 12 is the day of the year in the Gregorian calendar.
1010
April 15
April 15 is the day of the year in the Gregorian calendar.
1011
April 30
April 30 is the day of the year in the Gregorian calendar.
1012
August 22
August 22 is the day of the year in the Gregorian calendar.
1013
August 27
August 27 is the day of the year in the Gregorian calendar.
1014
Alcohol
In chemistry, an alcohol is any organic compound in which the hydroxyl functional group (–OH) is bound to a saturated carbon atom. The term alcohol originally referred to the primary alcohol ethanol (ethyl alcohol), which is used as a drug and is the main alcohol present in alcoholic beverages.
1016
Achill Island
Achill Island ( ; Irish: "Acaill, Oileán Acla" ) in County Mayo is the largest island off the coast of Ireland, and is situated off the west coast. It has a population of 2,700. Its area is 148 km2 . Achill is attached to the mainland by Michael Davitt Bridge, between the villages of Gob an Choire (Achill Sound) and Poll Raithní (Polranny). A bridge was first completed here in 1887, replaced by another structure in 1949, and subsequently replaced with the current bridge which was completed in 2008. Other centres of population include the villages of Keel, Dooagh, Dumha Éige (Dooega), Dún Ibhir (Dooniver), The Valley and Dugort. The parish's main Gaelic football pitch and secondary school are on the mainland at Poll Raithní. Early human settlements are believed to have been established on Achill around 3000 BC. A paddle dating from this period was found at the crannóg near Dookinella.
1017
Allen Ginsberg
Irwin Allen Ginsberg ( ; June 3, 1926 – April 5, 1997) was an American poet. He is considered to be one of the leading figures of both the Beat Generation during the 1950s and the counterculture that soon followed. He vigorously opposed militarism, economic materialism and sexual repression and was known as embodying various aspects of this counterculture, such as his views on drugs, hostility to bureaucracy and openness to Eastern religions. He was one of many influential American writers of his time known as the Beat Generation, which included famous writers such as Jack Kerouac and William S. Burroughs.
1018
Algebraically closed field
In abstract algebra, an algebraically closed field "F" contains a root for every non-constant polynomial in "F"["x"], the ring of polynomials in the variable "x" with coefficients in "F".
1019
August 6
August 6 is the day of the year in the Gregorian calendar.
1020
Anatoly Karpov
Anatoly Yevgenyevich Karpov (Russian: Анато́лий Евге́ньевич Ка́рпов ; born May 23, 1951) is a Russian chess grandmaster and former World Champion. He was the official world champion from 1975 to 1985 when he was defeated by Garry Kasparov. He played three matches against Kasparov for the title from 1986 to 1990, before becoming FIDE World Champion once again after Kasparov broke away from FIDE in 1993. He held the title until 1999, when he resigned his title in protest against FIDE's new world championship rules. For his decades-long standing among the world's elite, Karpov is considered by many to be one of the greatest players of all time.
1021
Aspect ratio
The aspect ratio of a geometric shape is the ratio of its sizes in different dimensions. For example, the aspect ratio of a rectangle is the ratio of its longer side to its shorter sidethe ratio of width to height, when the rectangle is oriented as a "landscape".
1022
Auto racing
Auto racing (also known as car racing, motor racing, or automobile racing) is a sport involving the racing of automobiles for competition.
1023
Anarcho-capitalism
Anarcho-capitalism is a political philosophy and school of anarchist thought that advocates the elimination of the state in favor of self-ownership, private property, and free markets. Anarcho-capitalists hold that, in the absence of statute (law by centralized decrees and legislation), society tends to contractually self-regulate and civilize through the discipline of the free market (in what its proponents describe as a "voluntary society").
1027
August 9
August 9 is the day of the year in the Gregorian calendar.
1028
Aristophanes
Aristophanes ( or ; Greek: Ἀριστοφάνης , ] ; c. 446 – c. 386 BC), son of Philippus, of the deme Kydathenaion (Latin: "Cydathenaeum" ), was a comic playwright of ancient Athens. Eleven of his forty plays survive virtually complete. These, together with fragments of some of his other plays, provide the only real examples of a genre of comic drama known as Old Comedy, and are used to define it.
1029
Albert Schweitzer
Albert Schweitzer, OM (14 January 1875 – 4 September 1965) was a French-German theologian, organist, writer, humanitarian, philosopher, and physician. A Lutheran, Schweitzer challenged both the secular view of Jesus as depicted by historical-critical methodology current at this time, as well as the traditional Christian view. His contributions to the interpretation of Pauline Christianity concern the role of Paul's mysticism of “being in Christ” as primary and the doctrine of Justification by Faith as secondary.
1030
Austrian School
The Austrian School is a school of economic thought that is based on methodological individualism – the concept that social phenomena result from the motivations and actions of individuals. It originated in late-19th and early-20th century Vienna with the work of Carl Menger, Eugen Böhm von Bawerk, Friedrich von Wieser, and others. It was methodologically opposed to the Prussian Historical School (in a dispute known as Methodenstreit). Current-day economists working in this tradition are located in many different countries, but their work is still referred to as Austrian economics.
1032
Abscess
An abscess () is a collection of pus that has built up within the tissue of the body. Signs and symptoms of abscesses include redness, pain, warmth, and swelling. The swelling may feel fluid-filled when pressed. The area of redness often extends beyond the swelling. Carbuncles and boils are types of abscess that often involve hair follicles, with carbuncles being larger.
1036
Aalborg Municipality
Aalborg Municipality is a municipality (Danish, "kommune") in Region Nordjylland on the Jutland peninsula in northern Denmark. The municipality straddles the Limfjord, the waterway which connects the North Sea and the Kattegat east-to-west, and which separates the main body of the Jutland peninsula from the island of Vendsyssel-Thy north-to-south. It has a land area of 1,143.99 km², population 197,426 (2010) and belongs to Region Nordjylland ("North Jutland Region").
1038
Aarhus
Aarhus (] ; officially spelled Århus from 1948 until 31 December 2010) is the second-largest city in Denmark and the seat of Aarhus municipality. It is located on the east coast of the Jutland peninsula, in the geographical centre of Denmark, 187 km northwest of Copenhagen and 289 km north of Hamburg, Germany. The inner urban area contains 269,022 inhabitants (as of 01 2017 ) and the municipal population is 335,684 (as of 2017 ). Aarhus is the central city in the East Jutland metropolitan area, which had a total population of 1.378 million in 2016.
1043
Northern cavefish
The northern cavefish or northern blindfish, "Amblyopsis spelaea", is found in caves through Kentucky and southern Indiana. It is listed as a threatened species in the United States and the IUCN lists the species as near threatened.
1046
Abatement
Abatement refers generally to a lessening, diminution, reduction, or moderation; specifically, it may refer to:
1049
Amateur
An amateur (French "amateur" "lover of", from Old French and ultimately from Latin "amatorem" nom. "amator", "lover") is generally considered a person attached to a particular pursuit, study, or science in a non-professional or unpaid manner.
1051
Alexis Carrel
Alexis Carrel (] ; 28 June 1873 – 5 November 1944) was a French surgeon and biologist who was awarded the Nobel Prize in Physiology or Medicine in 1912 for pioneering vascular suturing techniques. He invented the first perfusion pump with Charles A. Lindbergh opening the way to organ transplantation. Like many intellectuals of his time, he promoted eugenics.
1055
All Souls' Day
In Christianity, All Souls' Day commemorates All Souls, the Holy Souls, or the Faithful Departed; that is, the souls of Christians who have died. Observing Christians typically remember deceased relatives on the day. In Western Christianity the annual celebration is now held on 2 November and is associated with the three days 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 (Latin: Commemoratio omnium fidelium defunctorum ), and is celebrated annually on 2 November. In the ordinary form and Divine Worship form of the Roman Rite, it remains on 2 November if this date falls on a Sunday; in the extraordinary form, it is transferred to Monday, 3 November. On this day in particular, Catholics pray for the dead. In Anglicanism it is called Commemoration of All Faithful Departed 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.
1057
Anatole France
Anatole France (] ; born François-Anatole Thibault , ] ; 16 April 1844 – 12 October 1924) was a French poet, journalist, and novelist. He was a successful novelist, with several best-sellers. Ironic and skeptical, he was considered in his day the ideal French man of letters. He was a member of the "Académie française ", and won the 1921 Nobel Prize in Literature "in recognition of his brilliant literary achievements, characterized as they are by a nobility of style, a profound human sympathy, grace, and a true Gallic temperament".
1058
André Gide
André Paul Guillaume Gide (] ; 22 November 1869 – 19 February 1951) was a French author and winner of the Nobel Prize in Literature in 1947 "for his comprehensive and artistically significant writings, in which human problems and conditions have been presented with a fearless love of truth and keen psychological insight". Gide's career ranged from its beginnings in the symbolist movement, to the advent of anticolonialism between the two World Wars.
1063
Algorithms for calculating variance
Algorithms for calculating variance play a major role in computational statistics. A key difficulty in the design of good algorithms for this problem is that formulas for the variance may involve sums of squares, which can lead to numerical instability as well as to arithmetic overflow when dealing with large values.
1064
Almond
The almond ("Prunus dulcis", syn. "Prunus amygdalus") is a species of tree native to the Middle East, the Indian subcontinent and North Africa.
1069
Demographics of Antigua and Barbuda
This article is about the demographic features of the population of Antigua and Barbuda, including population density, ethnicity, religious affiliations and other aspects of the population.
1070
Politics of Antigua and Barbuda
The politics of Antigua and Barbuda takes place in a framework of a unitary parliamentary representative democratic monarchy, wherein the Sovereign of Antigua and Barbuda is the head of state, appointing a Governor-General to act as vice-regal representative in the nation. A Prime Minister is appointed by the Governor-General as the head of government, and of a multi-party system; the Prime Minister advises the Governor-General on the appointment of a Council of Ministers. Executive power is exercised by the government. Legislative power is vested in both the government and the two chambers of the Parliament. The bicameral Parliament consists of the Senate (seventeen-member body appointed by the Governor General) and the House of Representatives (seventeen seats; members are elected by proportional representation to serve five-year terms).
1072
Telecommunications in Antigua and Barbuda
This article is about communications systems in Antigua and Barbuda.
1074
Royal Antigua and Barbuda Defence Force
The Antigua and Barbuda Defence Force is the armed force of Antigua and Barbuda. The ABDF has responsibility for several different roles: internal security, prevention of drug smuggling, the protection and support of fishing rights, prevention of marine pollution, search and rescue, ceremonial duties, assistance to government programs, provision of relief during natural disasters, assistance in the maintenance of essential services, and support of the police in maintaining law and order.
1078
Antisemitism
Antisemitism (also spelled anti-Semitism or anti-semitism) is hostility to, prejudice, or discrimination against Jews. A person who holds such positions is called an antisemite. Antisemitism is generally considered to be a form of racism.
1081
Economy of Azerbaijan
Azerbaijan has an economy that has completed its post-Soviet transition into a major oil based economy (with the completion of the Baku-Tbilisi-Ceyhan Pipeline), from one where the state played the major role. Azerbaijan's GDP grew 41.7% in the first quarter of 2007, possibly the highest of any nation worldwide.
1082
Geography of Azerbaijan
Azerbaijan is situated in the Caucasus region of Eurasia. Three physical features dominate Azerbaijan: the Caspian Sea, whose shoreline forms a natural boundary to the east; the Greater Caucasus mountain range to the north; and the extensive flatlands at the country's center. About the size of Portugal or the state of Maine, Azerbaijan has a total land area of approximately 86,600 square kilometers, less than 1% of the land area of the former Soviet Union. Of the three Transcaucasian states, Azerbaijan has the greatest land area. Special administrative subdivisions are the Nakhchivan Autonomous Republic, which is separated from the rest of Azerbaijan by a strip of Armenian territory, and the Nagorno-Karabakh Autonomous Region, entirely within Azerbaijan. (The status of Nagorno-Karabakh was under negotiation in 1994.) Located in the region of the southern Caucasus Mountains, Azerbaijan borders the Caspian Sea to the east, Georgia and Russia to the north, Iran to the south, and Armenia to the southwest and west. A small part of Nakhchivan also borders Turkey to the northwest. The capital of Azerbaijan is the ancient city of Baku, which has the largest and best harbor on the Caspian Sea and has long been the center of the republic's oil industry.
1087
Foreign relations of Azerbaijan
Azerbaijan is a member of the United Nations, the Non-Aligned Movement, the Organization for Security and Cooperation in Europe, NATO's Partnership for Peace, the Euro-Atlantic Partnership Council, the World Health Organization, the European Bank for Reconstruction and Development; the Council of Europe, CFE Treaty, the Community of Democracies; the International Monetary Fund; and the World Bank.
1088
Azerbaijani Armed Forces
The Azerbaijani Armed Forces (Azerbaijani: "Azərbaycan Silahlı Qüvvələri" ) were re-established according to the Law of the Republic of Azerbaijan on the Armed Forces from 9 October 1991. The Azerbaijan Democratic Republic (ADR) had originally formed its own armed forces from 26 June 1918. However these were dissolved after Azerbaijan was absorbed into the Soviet Union as the Azerbaijan Soviet Socialist Republic from 28 April 1920. After the Soviet Union dissolved in 1991–92 the armed forces were reformed based on Soviet bases and equipment left on Azeri soil.
1091
Geography of Armenia
Armenia is a landlocked country in the Transcaucasia region, between the Black and Caspian Seas, bordered on the north and east by Georgia and Azerbaijan and on the south and west by Iran and Turkey.
1092
Demographics of Armenia
The demographics of Armenia is about the demographic features of the population of Armenia, including population growth, population density, ethnicity, education level, health, economic status, religious affiliations, and other aspects of the population.
1093
Politics of Armenia
The politics of Armenia takes place in a framework of a semi-presidential representative democratic republic, whereby the President is the head of state and the Prime Minister is the head of government, and of a multi-party system. Executive power is exercised by the government. Legislative power is vested in both the government and parliament.
1094
Economy of Armenia
The economy of Armenia is ranked 132nd in the world, with a nominal gross domestic product (GDP) of $10.561 billion per annum. It is also the 129th largest in the world by purchasing power parity (PPP), at $25.329 billion per annum. Armenia is the second-most densely populated of the post-Soviet states because of its small size. It is situated between the Black Sea and the Caspian Sea, bordered on the north and east by Georgia and Azerbaijan and on the south and west by Iran and Turkey.
1096
Transport in Armenia
This article considers transport in Armenia. For Soviet transportation, see Transport in the Soviet Union.
1097
Armed Forces of Armenia
The Armed Forces of the Republic of Armenia (Armenian: Հայաստանի Հանրապետության զինված ուժեր ) comprise two services: the Army, and the Air Force and Air Defense (a unified branch). It was partially formed out of the former Soviet Army forces stationed in the Armenian SSR (mostly units of the 7th Guards Army of the Transcaucasian Military District). Being a landlocked country, Armenia has no navy.
1098
Foreign relations of Armenia
Armenia has maintained a policy of complementarism by trying to have positive and friendly relations with Iran, Russia, and the West, including the United States and the European Union since its independence. It has full membership status in a number of international organizations and observer status, etc. in some others. However, the dispute over the Armenian Genocide of 1915 and the recent war over Nagorno–Karabakh have created tense relations with two of its immediate neighbors, Azerbaijan and Turkey.
1109
Geography of American Samoa
American Samoa, located within the geographical region of Oceania, is one of only two possessions of the United States in the Southern Hemisphere, the other being Jarvis Island. Its total land area is 76.8 sqmi —slightly larger than Washington, D.C.—consisting of five rugged, volcanic islands and two coral atolls. The five volcanic islands are: Tutuila, Aunu'u, Ofu, Olosega, Ta'u. The coral atolls are: Swains, and Rose Atoll. Of the seven islands, Rose Atoll is an uninhabited Marine National Monument.
1110
Demographics of American Samoa
This article is about the demographic features of the population of American Samoa, including population density, ethnicity, education level, health of the populace, economic status, religious affiliations and other aspects of the population.
1111
Politics of American Samoa
Politics of American Samoa takes place in a framework of a presidential representative democratic dependency, whereby the Governor is the head of government, and of a multi-party system. American Samoa is an unincorporated and unorganized territory of the United States, administered by the Office of Insular Affairs, U.S. Department of the Interior. Its constitution was ratified 1966 and came into effect 1967. Executive power is discharged by the governor and the lieutenant governor. Legislative power is vested in the two chambers of the legislature. The party system is a based on the United States party system. The judiciary is independent of the executive and the legislature.
1112
Economy of American Samoa
The economy of American Samoa is a traditional Polynesian economy in which more than 90% of the land is communally owned. Economic activity is strongly linked to the United States, with which American Samoa conducts the great bulk of its foreign trade. Tuna fishing and processing plants are the backbone of the private sector, with canned tuna being the primary export. Transfers from the U.S. federal government add substantially to American Samoa's economic well-being. Attempts by the government to develop a larger and broader economy are restrained by Samoa's remote location, its limited transportation, and its devastating hurricanes. Tourism, a developing sector, may be held back by the current financial difficulties in East Asia.
1129
August 13
August 13 is the day of the year in the Gregorian calendar.
1130
Avicenna
Avicenna or Ibn Sīnā (Persian: ‎ ‎ ;  – June 1037) was a Persian polymath who is regarded as one of the most significant physicians, astronomers, thinkers and writers of the Islamic Golden Age.
1132
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, their 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".
1134
Analysis
Analysis is the process of breaking a complex topic or substance into smaller parts in order to gain a better understanding of it. The technique has been applied in the study of mathematics and logic since before Aristotle (384–322 B.C.), though "analysis" as a formal concept is a relatively recent development.
1135
Abner Doubleday
Abner Doubleday (June 26, 1819January 26, 1893) was a career United States Army officer and Union general in the American Civil War. He fired the first shot in defense of Fort Sumter, the opening battle of the war, and had a pivotal role in the early fighting at the Battle of Gettysburg. Gettysburg was his finest hour, but his relief by Maj. Gen. George G. Meade caused lasting enmity between the two men. In San Francisco, after the war, he obtained a patent on the cable car railway that still runs there. In his final years in New Jersey, he was a prominent member and later president of the Theosophical Society. Doubleday has been historically credited with inventing baseball, although this is untrue.
1136
America's National Game
America's National Game is a book by Albert Spalding, published in 1911 detailing the early history of the sport of baseball. Much of the story is told first-hand, since Spalding had been involved in the game, first as a player and later an administrator, since the 1850s. In addition to his personal recollections, he had access to the records of Henry Chadwick, the game's first statistician and archivist. Spalding was, however, known to aggrandise his role in the major moments in baseball's history.
1140
Amplitude modulation
Amplitude modulation (AM) is a modulation technique used in electronic communication, most commonly for transmitting information via a radio carrier wave. In amplitude modulation, the amplitude (signal strength) of the carrier wave is varied in proportion to the waveform being transmitted. That waveform may, for instance, correspond to the sounds to be reproduced by a loudspeaker, or the light intensity of television pixels. This technique contrasts with frequency modulation, in which the frequency of the carrier signal is varied, and phase modulation, in which its phase is varied.
1141
Augustin-Jean Fresnel
Augustin-Jean Fresnel ( ; ] ; 10 May 1788 – 14 July 1827) was a French engineer and physicist who contributed significantly to the establishment of the theory of wave optics. Fresnel studied the behaviour of light both theoretically and experimentally.
1143
Abbot
Abbot, meaning father, is an ecclesiastical title given to the male head of a monastery in various traditions, including Christianity. The office may also be given as an honorary title to a clergyman who is not the head of a monastery. The female equivalent is abbess.
1144
Ardipithecus
Ardipithecus is a genus of an extinct hominine that lived during Late Miocene and Early Pliocene in Afar Depression, Ethiopia. Originally described as one of the earliest ancestors of humans after they diverged from the main ape lineage, the relation of this genus to human ancestors and whether it is a hominin is now a matter of debate. Two fossil species are described in the literature: "A. ramidus", which lived about 4.4 million years ago during the early Pliocene, and "A. kadabba", dated to approximately 5.6 million years ago (late Miocene). Behavioral analysis showed that "Ardipithecus" could be very similar to chimpanzees, indicating that the early human ancestors were very chimpanzee-like in behaviour.
1146
Assembly line
An assembly line is a manufacturing process (most of the time called a "progressive assembly") in which parts (usually interchangeable parts) are added as the semi-finished assembly moves from workstation to workstation where the parts are added in sequence until the final assembly is produced. By mechanically moving the parts to the assembly work and moving the semi-finished assembly from work station to work station, a finished product can be assembled faster and with less labor than by having workers carry parts to a stationary piece for assembly.
1148
Adelaide
Adelaide ( ) is the capital city of the state of South Australia, and the fifth-most populous city of Australia. In June 2016, Adelaide had an estimated resident population of 1,326,354. South Australia, with a total of 1.7 million inhabitants, has the most centralised population of any state in Australia, with more than 75 percent of its people living in greater Adelaide, while the other population centres in the state are relatively small.
1152
Alan Garner
Alan Garner OBE (born 17 October 1934) is an English novelist best known for his children's fantasy novels and his retellings of traditional British folk tales. Much of his work is firmly rooted in the landscape, history and folklore of his native county of Cheshire, North West England, being set in the region and making use of the native Cheshire dialect.
1154
August 2
August 2 is the day of the year in the Gregorian calendar.
1155
Atlantic (disambiguation)
The Atlantic Ocean is the second largest of the world's oceans.
1158
Algebraic number
An algebraic number is any complex number that is a root of a non-zero polynomial in one variable with rational coefficients (or equivalently – by clearing denominators – with integer coefficients). All integers and rational numbers are algebraic, as are all roots of integers. The same is not true for all real and complex numbers because they also include transcendental numbers such as π and e. Almost all real and complex numbers are transcendental.
1160
Automorphism
In mathematics, an automorphism is an isomorphism from a mathematical object to itself. It is, in some sense, a symmetry of the object, and a way of mapping the object to itself while preserving all of its structure. The set of all automorphisms of an object forms a group, called the automorphism group. It is, loosely speaking, the symmetry group of the object.
1162
Accordion
Accordions (from 19th century German "Akkordeon", from "Akkord"—"musical chord, concord of sounds") are a family of box-shaped musical instruments of the bellows-driven free-reed aerophone type, colloquially referred to as a squeezebox. A person who plays the accordion is called an "accordionist". The concertina and bandoneón are related; the harmonium and American reed organ are in the same family.
1164
Artificial intelligence
Artificial intelligence (AI, also machine intelligence, MI) is apparently intelligent behaviour by machines, rather than the "natural intelligence" ("NI") of humans and other animals. In computer science AI research is defined as the study of "intelligent agents": any device that perceives its environment and takes actions that maximize its chance of success at some goal. Colloquially, the term "artificial intelligence" is applied when a machine mimics "cognitive" functions that humans associate with other human minds, such as "learning" and "problem solving".
1166
Afro Celt Sound System
Their albums have been released through Peter Gabriel's Real World Records, and they have frequently performed at WOMAD festivals worldwide. Their sales on the label are exceeded only by Gabriel himself. Their recording contract with Real World was for five albums, of which "Volume 5: Anatomic" was the last.
1167
Ancient philosophy
This page lists some links to ancient philosophy. In Western philosophy, the spread of Christianity in the Roman Empire marked the ending of Hellenistic philosophy and ushered in the beginnings of Medieval philosophy, whereas in Eastern philosophy, the spread of Islam through the Arab Empire marked the end of Old Iranian philosophy and ushered in the beginnings of early Islamic philosophy.
1168
Anaximander
Anaximander ( ; Greek: Ἀναξίμανδρος "Anaximandros"; was a pre-Socratic Greek philosopher who lived in Miletus, a city of Ionia (in modern-day Turkey). He belonged to the Milesian school and learned the teachings of his master Thales. He succeeded Thales and became the second master of that school where he counted Anaximenes and, arguably, Pythagoras amongst his pupils.
1169
APL
APL is an abbreviation, acronym, or initialism that may refer to:
1170
Architect
An architect is someone 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.
1171
Abbreviation
An abbreviation (from Latin "brevis", meaning "short" ) is a shortened form of a word or phrase. It consists of a group of letters taken from the word or phrase. For example, the word "abbreviation" can itself be represented by the abbreviation "abbr.", "abbrv.", or "abbrev."
1174
Aphrodite
Aphrodite ( ; Greek: Ἀφροδίτη "Aphrodite") is the Greek goddess of love, beauty, pleasure, and procreation. She is identified with the planet Venus; her Roman equivalent is the goddess Venus . Myrtle, roses, doves, sparrows and swans were sacred to her.
1175
April 1
April 1 is the day of the year in the Gregorian calendar.
1176
Antisymmetric relation
In mathematics, a binary relation "R" on a set "X" is anti-symmetric if there is no pair of distinct elements of "X" each of which is related by "R" to the other. More formally, "R" is anti-symmetric precisely if for all "a" and "b" in "X"
1177
Aleister Crowley
Aleister Crowley ( ; born Edward Alexander Crowley; 12 October 1875 – 1 December 1947) was an English occultist, ceremonial magician, poet, painter, novelist, and mountaineer. He founded the religion of Thelema, identifying himself as the prophet entrusted with guiding humanity into the Æon of Horus in the early 20th century. A prolific writer, he published widely over the course of his life.
1178
Afterlife
The afterlife (also referred to as life after death or the hereafter) is the belief that an essential part of an individual's identity or the stream of consciousness continues to manifest after the death of the physical body. According to various ideas about the afterlife, the essential aspect of the individual that lives on after death may be some partial element, or the entire soul or spirit, of an individual, which carries with it and may confer personal identity or, on the contrary, may not, as in Indian nirvana. Belief in an afterlife, which may be naturalistic or supernatural, is in contrast to the belief in oblivion after death.
1181
Astrometry
Astrometry is the branch of astronomy that involves precise measurements of the positions and movements of stars and other celestial bodies. The information obtained by astrometric measurements provides information on the kinematics and physical origin of the Solar System and our galaxy, the Milky Way.
1182
Athena
Athena ( ; Attic Greek: Ἀθηνᾶ , "Athēnā", or Ἀθηναία , "Athēnaia"; Epic: Ἀθηναίη , "Athēnaiē"; Doric: Ἀθάνα , "Athānā") or Athene ( ; Ionic: Ἀθήνη , "Athēnē"), often given the epithet Pallas ( ; Παλλὰς ), is the goddess of wisdom, craft, and war in ancient Greek religion and mythology. In later times, Athena was syncretized with the Roman goddess Minerva.
1183
Amber Diceless Roleplaying Game
The Amber Diceless Roleplaying Game is a role-playing game created and written by Erick Wujcik, set in the fictional universe created by author Roger Zelazny for his "Chronicles of Amber". The game is unusual in that no dice are used in resolving conflicts or player actions; instead a simple diceless system of comparative ability, and narrative description of the action by the players and gamemaster, is used to determine how situations are resolved.
1184
Athene (disambiguation)
Athene or Athena is the shrewd companion of heroes and the goddess of heroic endeavour in Greek mythology.
1187
Alloy
An alloy is a mixture of metals or a mixture of a metal and another element. Alloys are defined by a metallic bonding character. An alloy may be a solid solution of metal elements (a single phase) or a mixture of metallic phases (two or more solutions). Intermetallic compounds are alloys with a defined stoichiometry and crystal structure. Zintl phases are also sometimes considered alloys depending on bond types (see also: Van Arkel-Ketelaar triangle for information on classifying bonding in binary compounds).
1192
Artistic revolution
Throughout history, forms of art have gone through periodic abrupt changes called artistic revolutions. Movements have come to an end to be replaced by a new movement markedly different in striking ways. See also cultural movements.
1193
Agrarianism
Agrarianism is a social philosophy or political philosophy which values rural society as superior to urban society, the independent farmer as superior to the paid worker, and sees farming as a way of life that can shape the ideal social values. It stresses the superiority of a simpler rural life as opposed to the complexity of city life.
1196
Angle
In planar geometry, an angle is the figure formed by two rays, called the "sides" of the angle, sharing a common endpoint, called the "vertex" of the angle.
1198
Acoustics
Acoustics is the interdisciplinary science that deals with the study of all mechanical waves in gases, liquids, and solids including topics such as vibration, sound, ultrasound and infrasound. A scientist who works in the field of acoustics is an acoustician while someone working in the field of acoustics technology may be called an acoustical engineer. The application of acoustics is present in almost all aspects of modern society with the most obvious being the audio and noise control industries.
1200
Atomic physics
Atomic physics is the field of physics that studies atoms as an isolated system of electrons and an atomic nucleus. It is primarily concerned with the arrangement of electrons around the nucleus and
1201
American Sign Language
American Sign Language (ASL) is a natural language that serves as the predominant sign language of Deaf communities in the United States and most of Anglophone Canada. Besides North America, dialects of ASL and ASL-based creoles are used in many countries around the world, including much of West Africa and parts of Southeast Asia. ASL is also widely learned as a second language, serving as a lingua franca. ASL is most closely related to French Sign Language (LSF). It has been proposed that ASL is a creole language of LSF, although ASL shows features atypical of creole languages, such as agglutinative morphology.
1202
Applet
In computing, an applet is any small application that performs one specific task that runs within the scope of a dedicated widget engine or a larger program, often as a plug-in. The term is frequently used to refer to a Java applet, a program written in the Java programming language that is designed to be placed on a web page. Applets are typical examples of transient and auxiliary applications that don't monopolize the user's attention. Applets are not full-featured application programs, and are intended to be easily accessible.
1203
Alternate history
Alternate history or alternative history (British English), sometimes abbreviated as AH, is a genre of fiction consisting of stories in which one or more historical events occur differently. These stories usually contain "what if" scenarios at crucial points in history and present outcomes other than those in the historical record. The stories are conjectural, but are sometimes based on fact. Alternate history can be seen as a subgenre of literary fiction, science fiction, or historical fiction; alternate history works may use tropes from any or all of these genres. Another term occasionally used for the genre is "allohistory" (literally "other history").
1206
Atomic orbital
In quantum mechanics, an atomic orbital is a mathematical function that describes the wave-like behavior of either one electron or a pair of electrons in an atom. This function can be used to calculate the probability of finding any electron of an atom in any specific region around the atom's nucleus. The term, atomic orbital, may also refer to the physical region or space where the electron can be calculated to be present, as defined by the particular mathematical form of the orbital.