| Quantum mechanics Quantum mechanics is a set of principles underlying the most fundamental known description of all physical systems at the submicroscopic scale Quantum_mechanics
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| Quarantine Quarantine is voluntary or compulsory isolation, typically to contain the spread of something considered dangerous, often but not always disease. The word comes from the Italian (seventeenth century Venetian) language Italian quarantena, meaning forty day period. Quarantine
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| History of Romania This article provides only a brief outline of each period of the History of Romania; details are presented in separate articles (see the links in the box and below). History_of_Romania
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| Rwanda Rwanda
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| Rockall Rockall is a small, uninhabited, rocky islet in the north Atlantic Ocean. It gives its name to one of the sea areas named in the Shipping Forecast, provided by the British Meteorological Office. It could be, in James Fisher's words, "the most isolated small rock in the oceans of the world".The ownership of Rockall is disputed as are the exploration and fishing rights on the Rockall Bank. Rockall
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| Rocket Talk:Rocket
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| Red Panda The Red Panda, also called the Firefox or Lesser Panda (Latin nameAilurus fulgens, "shining cat"), is a mostly herbivorous mammal, specialized as a bamboo feeder. It is slightly larger than a domestic cat (40 - 60 cm long, 3 - 6 kg weight). The Red Panda is endemic to the Himalayas in Bhutan, southern China, Pakistan, India, Laos, Nepal, and Burma. There is an estimated population of fewer than 2,500 mature individuals. Their population continues to decline due to habitat fragmentation. Red_Panda
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| Race and intelligence Race and intelligence have in some cases been claimed to be correlated. Contemporary debate on this issue focuses on the nature, causes, and rectifications of ethnic differences in intelligence test scores. The question of the relative roles of nature and nurture in correlation does not prove causation. No gene has been shown to be linked to intelligence, "so attempts to provide a compelling genetic link of race to intelligence are not feasible at this time". Race_and_intelligence
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| Sabbath in Christianity In Christianity, the Sabbath is generally a weekly religious day of rest as ordained by one of the Ten Commandments (the third by Roman Catholic and Lutheran numbering, and the fourth by Eastern Orthodox and usual Protestant numbering). The practice is derived from Judaism, the parent religion of Christianity; shabbat (, šhabbat) meaning "the Old Testament Sabbath, taken as a "perpetual covenant ... a sign for ever" by the people of Israel (-NRSV), and also applicable to proselytes ( Sabbath_in_Christianity
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| Scandinavia Scandinavia is a historical and geographical region in northern Europe that includes, and is named after, the Scandinavian Peninsula. It consists of the kingdoms of Norway, Sweden, and Denmark; some authorities argue for the inclusion of Finland and Iceland, in Scandinavia the term is, however, used unambiguously for Denmark, Norway and Sweden, which share a mutually intelligible language (a dialect continuum), ethnic composition and have close cultural and historic bonds, to a degree that Scandinavians may be considered one people (see scandinavism). Scandinavia
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| Sun The Sun () is the star at the center of the Solar System. The Earth and other matter (including other planets, asteroids, meteoroids, comets, and dust) orbit the Sun, which by itself accounts for about 98.6% of the Solar System's mass. The mean distance of the Sun from the Earth is approximately , and its light travels this distance in 8 minutes and 19 seconds. Sun
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| Scotland Scotland
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| Santiago de Compostela Santiago de Compostela (also Saint James of Compostela) is the capital of the autonomous community of Galicia and a UNESCO World Heritage Site. Located in the north west of Spain in the Province of A Coruña, it was the "European City of Culture" for the year 2000. The city's Cathedral is the destination today, as it has been throughout history, of the important 9th century medieval pilgrimage route, the Way of St. James (Galician:Camiño de Santiago, Spanish:Camino de Santiago). Santiago_de_Compostela
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| Supernova supernova (pl. supernovae) is a stellar explosion. Supernovae are extremely luminous and cause a burst of radiation that often briefly outshines an entire galaxy, before fading from view over several weeks or months. During this short interval, a supernova can radiate as much energy as the Sun could emit over its life span. Supernova
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| Spreadsheet A spreadsheet is a computer application that simulates a paper worksheet. It displays multiple cells that together make up a grid consisting of rows and columns, each cell containing either alphanumeric text or numeric values. A spreadsheet cell may alternatively contain a formula that defines how the contents of that cell is to be calculated from the contents of any other cell (or combination of cells) each time any cell is updated. Spreadsheet
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| Singular they Talk:Singular_they
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| Spoonerism A spoonerism is an error in speech or deliberate play on words in which corresponding consonants, vowels, or morphemes are switched (see metathesis). It is named after the Reverend William Archibald Spooner (1844–1930), Warden of New College, Oxford, who was notoriously prone to this tendency. Spoonerism
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| Separation of powers The separation of powers, also known as trias politica, is a model for the governance of democratic states. The model was first developed in ancient Greece and came into widespread use by the Roman Republic as part of the uncodified Constitution of the Roman Republic. Under this model, the state is divided into branches or estates, each with separate and independent powers and areas of responsibility. The normal division of estates is into an executive, a legislature, and a judiciary. Separation_of_powers
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| Selective serotonin reuptake inhibitor Selective serotonin reuptake inhibitors or serotonin-specific reuptake inhibitor (SSRIs) are a class of compounds typically used as antidepressants in the treatment of depression, anxiety disorders, and some personality disorders. They are also typically effective and used in treating premature ejaculation problems as well as some cases of insomnia. Selective_serotonin_reuptake_inhibitor
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| On the Origin of Species Talk:On_the_Origin_of_Species
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| Tiger Tiger
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| Thomas Mann Thomas_Mann
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| Telecommunication Talk:Telecommunication
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| Terrorism Terrorism is a policy or ideology of violence intended to intimidate or cause terror for the purpose of "exerting pressure on decision making by state bodies." Terrorism
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| Tetrarchy The term Tetrarchy (Greek:Roman Emperor Diocletian in 293 CE, marking the end of the Crisis of the Third Century and the recovery of the Roman Empire. This Tetrarchy lasted until c.313 CE, when internecine conflict eliminated most of the claimants to power, leaving Constantine in the West and Licinius in the East. Tetrarchy
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| The Skeptical Environmentalist The Skeptical Environmentalist (, literal translationThe Real State of the World) is a controversial book by Danish environmentalist author Bjørn Lomborg, which argues that claims on overpopulation, declining energy resources, deforestation, species loss, water shortages, certain aspects of global warming, and a variety of other global environmental issues are unsupported by analysis of the relevant data. The_Skeptical_Environmentalist
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| Tricyclic antidepressant Tricyclic antidepressants (TCAs) are a class of antidepressant drugs first introduced in the 1950s. They are named after their molecular structure, which contains three rings of atoms. They are closely related to the tetracyclic antidepressants (TeCAs). In recent times, the TCAs have been largely replaced in clinical use in most parts of the world by newer antidepressants such as the selective serotonin reuptake inhibitors (SSRIs) and the serotonin-norepinephrine reuptake inhibitors (SNRIs). Tricyclic_antidepressant
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| Democratic-Republican Party The Democratic-Republican Party was founded by Thomas Jefferson and James Madison around 1792. Supporters usually identified themselves as Republicans, but sometimes as Democrats. The term "Democratic Republican" was also used by contemporaries, but mostly by the party's opponents. It was the dominant political party in the United States from 1800 to 1824, when it split into competing factions, one of which became the modern Democratic Party. Democratic-Republican_Party
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| Ural Mountains Riphean redirects here. For the time period, see Riphean stageThe Ural Mountains (, Uralskiye gory) (also known as the Urals) are a mountain range that runs roughly north and south through western Russia. They are usually considered the natural boundary between Europe and Asia. Ural_Mountains
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| Vitamin A vitamin is an organic compound required as a nutrient in tiny amounts by an organism. A compound is called a vitamin when it cannot be synthesized in sufficient quantities by an organism, and must be obtained from the diet. Thus, the term is conditional both on the circumstances and the particular organism. Vitamin
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| Veganism Veganism is a diet and lifestyle that seeks to exclude the use of animals for food, clothing, or any other purpose. Veganism
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| Vietnam War Vietnam_War
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| Vega Vega
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| Wireless network Wireless network refers to any type of computer network that is wireless, and is commonly associated with a telecommunications network whose interconnections between nodes is implemented without the use of wires. Wireless telecommunications networks are generally implemented with some type of remote information transmission system that uses electromagnetic waves, such as radio waves, for the carrier and this implementation usually takes place at the physical level or "layer" of the network. Wireless_network
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| Winston Churchill Sir Winston Leonard Spencer Churchill (30 November 1874 British politician known chiefly for his leadership of the United Kingdom during World War II. He served as Prime Minister from 1940 to 1945 and again from 1951 to 1955. A noted statesman and orator, Churchill was also an officer in the British Army, historian, writer, and artist. He is the only British Prime Minister who has ever received the Nobel Prize in Literature and the second person to be made an Honorary Citizen of the United States. Winston_Churchill
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| Zinc Zinc (, from and also known as spelter) is a metallic chemical element with the symbol Zn and atomic number 30. It is a first-row transition metal in group 12 of the periodic table. Zinc is chemically similar to magnesium because its ion is of similar size and its only common oxidation state is +2. Zinc
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| Little Ice Age Little Ice Age (LIA) was a period of cooling occurring after a warmer North Atlantic era known as the Medieval Warm Period. While not a true ice age, the term was introduced into scientific literature by François E. Matthes in 1939. Climatologists and historians working with local records no longer expect to agree on either the start or end dates of this period, which varied according to local conditions. Little_Ice_Age
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| Archaeoastronomy Talk:Archaeoastronomy
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| Hyderabad, India Hyderabad (), which was once known as Bhagyanagaram (, EnglishCity of Fortune), is the capital city and most populous city of the Indian state of Andhra Pradesh. The city of Hyderabad is estimated to have a population of about 8.8 million. The city has thus been classified as an A-1 status city joining the list of other A-1 cities such as Mumbai, Delhi, Kolkata, Chennai and Bangalore. Hyderabad,_India
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| Squid Squid are marine cephalopods of the order Teuthida, which comprises around 300 species. Like all other cephalopods, squid have a distinct head, bilateral symmetry, a mantle, and arms. Squid, like cuttlefish, have eight arms and two tentacles arranged in pairs. (The only known exception is the bigfin squid group, which have ten very long, thin arms of equal length.) Squid
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| Nicotine Nicotine is an alkaloid found in the nightshade family of plants (Solanaceae) which constitutes approximately 0.6–3.0% of dry weight of tobacco, with biosynthesis taking place in the roots, and accumulating in the leaves. It functions as an antiherbivore chemical with particular specificity to insects; therefore nicotine was widely used as an insecticide in the past, and currently nicotine analogs such as imidacloprid continue to be widely used. Nicotine
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| J. Robert Oppenheimer J. Robert Oppenheimer (April 22, 1904 American theoretical physicist and professor of physics at the University of California, Berkeley. He is best known for his role as the scientific director of the Manhattan Project:World War II effort to develop the first nuclear weapons at the secret Los Alamos National Laboratory in New Mexico. J._Robert_Oppenheimer
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| Anti-psychiatry Anti-psychiatry usually refers to a movement that emerged in the 1960s hostile to most of the fundamental assumptions and common practices of psychiatry. The igniting influences for this configuration of groups and theories were Michel Foucault, R.D. Laing and Thomas Szasz. The term anti-psychiatry was first used by the South African psychiatrist David Cooper in 1967 (although some groups and individuals now prefer the term "critical psychiatry" to avoid connoting a merely oppositional stance). Anti-psychiatry
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| Bohemian Rhapsody "Bohemian Rhapsody" is a song by the British rock band Queen. It was written by Freddie Mercury for the band's 1975 album A Night at the Opera. "Bohemian Rhapsody" is in the style of a stream-of-consciousness nightmare that has unusual song structure, more akin to a classical rhapsody than popular music. The song has no chorus, instead consisting of seemingly disjointed sections including operatic segments, an a cappella passage, and a heavy rock solo. Bohemian_Rhapsody
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| Compact Disc Talk:Compact_Disc
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| Conodont Conodonts are extinct chordates resembling eels, classified in the class Conodonta. For many years, they were known only from tooth-like microfossils now called conodont elements, found in isolation. The animal is also called conodontophora (conodont bearers) to avoid ambiguity. Conodont
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| Tang Dynasty The Tang Dynasty (; Middle Chinese:imperial dynasty of China preceded by the Sui Dynasty and followed by the Five Dynasties and Ten Kingdoms Period. It was founded by the Li (李) family, who seized power during the decline and collapse of the Sui Empire. The dynasty was interrupted briefly by the Second Zhou Dynasty (October 16, 690 Wu Zetian seized the throne, becoming the first and only Chinese empress regnant, ruling in her own right. Tang_Dynasty
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| Leopard The leopard (; Panthera pardus) is a member of the Felidae family and the smallest of the four "big cats" in the genus Panthera; the other three are the tiger, lion and jaguar. Once distributed across southern Asia and Africa, from Korea to South Africa, the leopard's range of distribution has decreased radically over time due to hunting and loss of habitat, and the leopard now chiefly occurs in sub-Saharan Africa. Leopard
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| Pluto Pluto
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| Turkic peoples The Turkic peoples are Eurasian peoples residing in northern, central and western Eurasia, and who speak languages belonging to the Turkic language family. They share, to varying degrees, certain cultural traits and historical backgrounds. The term Turkic represents a broad ethno-linguistic group of people including existing societies such as the Azerbaijani, Karachays, Kazakhs, Tatar, Kyrgyz, Turkish people, Turkmen, Uyghur, Uzbeks and as well as past civilizations such as the Xiongnu, Huns, Bulgars, Kumans, Avars, Seljuks, Khazars, Ottomans and Timurids. Turkic_peoples
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