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English Wikipedia references for Harvard.edu 401-450 of 24356
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| Sino-Indian War Sino-Indian_War | |
| Sonar Sonar (originally an acronym for sound navigation and ranging) is a technique that uses sound propagation (usually underwater) to navigate, communicate with or detect other vessels. There are two kinds of sonaracoustic location and of measurement of the echo characteristics of "targets" in the water. Sonar | |
| Scientific misconduct Talk:Scientific_misconduct | |
| Tamil Nadu Tamil Nadu (Tamil:தமிழ்நாடு "Land of the Tamils", ) is one of the 28 states of India. Its capital and largest city is Chennai (formerly known as Madras). Tamil Nadu lies in the southernmost part of the Indian Peninsula and is bordered by Puducherry (Pondicherry), Kerala, Karnataka and Andhra Pradesh. Tamil_Nadu | |
| Taurus (constellation) Taurus (, genitive Tauri ) is one of the constellations of the zodiac. Its name is Latin for bull, and its symbol is (), a stylized bull's head. Taurus is a large and prominent constellation in the northern hemisphere's winter sky, between Aries to the west and Gemini to the east; to the north lie Perseus and Auriga, to the southeast Orion, to the south Eridanus, and to the southwest Cetus. Taurus_(constellation) | |
| Telegraphy Telegraphy is the long-distance transmission of written messages without physical transport of letters. It is a compound term formed from the Greek words tele (τηλε) = far and graphein (γραφειν) = write. Radiotelegraphy or wireless telegraphy transmits messages using radio. Telegraphy includes recent forms of data transmission such as fax, email, and computer networks in general. Telegraphy | |
| Tycho Brahe Tycho Brahe, born Tyge Ottesen Brahe (14 December 1546 – 24 October 1601), was a Danish nobleman known for his accurate and comprehensive astronomical and planetary observations. Coming from Scania, then part of Denmark, now part of modern-day Sweden, Brahe was well known in his lifetime as an astronomer and alchemist. Tycho_Brahe | |
| Thorium Thorium () is a chemical element with the symbol Th and atomic number 90. It is a naturally occurring, slightly radioactive metal, which has been successfully used as an alternative nuclear fuel to uranium in the molten-salt reactor experiment for several years. Thorium is abundant on Earth and this type of reactor can be built to operate significantly cleaner than uranium based powerplants as the waste products are much easier to handle. Thorium | |
| Thallium Thallium () is a chemical element with the symbol Tl and atomic number 81. This soft gray malleable poor metal resembles tin but discolors when exposed to air. Approximately 60-70% of thallium production is used in the electronics industry, and the rest is used in the pharmaceutical industry and in glass manufacturing. Thallium | |
| The Evolution of Cooperation The Evolution of Cooperation generally refers to the study of how cooperation can emerge and persist (also known as cooperation theory) as elucidated by application of game theory, a 1981 paper by political scientist Robert Axelrod and evolutionary biologist William Hamilton in the scientific literature, or a 1984 book by Axelrod that expanded on the paper and popularized the study. The_Evolution_of_Cooperation | |
| Tim Berners-Lee Talk:Tim_Berners-Lee | |
| Trans-Neptunian object A trans-Neptunian object (TNO) is any object in the Solar System that orbits the Sun at a greater distance on average than Neptune. The Kuiper belt, scattered disk, and Oort cloud are three divisions of this volume of space.The first trans-Neptunian object to be discovered was Pluto in 1930. Trans-Neptunian_object | |
| Taliban The Taliban ( 'Taleban, is a pro-Wahhabi Sunni Islamist, predominantly Pashtun fundamentalist religious and political movement that governed Afghanistan from 1996 until 2001, when its leaders were removed from power by Northern Alliance and NATO forces. insurgency movement fighting a guerrilla war against the current government of Afghanistan, Pakistan, allied NATO forces participating in Operation Enduring Freedom, and the NATO-led International Security Assistance Force (ISAF). Taliban | |
| 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 | |
| Tidal acceleration Tidal acceleration is an effect of the tidal forces between an orbiting natural satellite (i.e. a moon), and the planet (called the primary) that it orbits. The "acceleration" is usually negative, as it causes a gradual slowing and recession of a satellite in a prograde orbit away from the primary, and a corresponding slowdown of the primary's rotation. The process eventually leads to tidal locking of first the smaller, and later the larger body. The Earth-Moon system is the best studied case. Tidal_acceleration | |
| Tetracycline This article deals with the specific antibiotic called tetracycline. For the group of antibiotics known as the tetracyclines, see tetracycline antibiotics.Tetracycline (INN) () is a broad-spectrum polyketide antibiotic produced by the Streptomyces genus of Actinobacteria, indicated for use against many bacterial infections. Tetracycline | |
| Triangulum Triangulum (, genitive Trianguli ) is a small constellation in the northern sky. Its name is Latin for triangle, and it should not be confused with Triangulum Australe in the southern sky. Its name derives from its three brightest stars, of third and fourth magnitude, which form a nearly-isosceles long and narrow triangle. Triangulum was one of the 48 constellations listed by the 1st century astronomer Ptolemy, and remains one of the 88 modern constellations. Triangulum | |
| Tunguska event The Tunguska Event, or Tunguska explosion, was a powerful explosion that occurred near the Podkamennaya (Lower Stony) Tunguska River in what is now Krasnoyarsk Krai of Russia, at around 7Julian calendar, in use locally at the time). Tunguska_event | |
| Tide Tide | |
| 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 | |
| Truth and Reconciliation Commission (South Africa) The Truth and Reconciliation Commission (TRC) was a court-like body assembled in South Africa after the abolition of apartheid. Anyone who felt that he or she was a victim of its violence was invited to come forward and be heard. Perpetrators of violence could also give testimony and request amnesty from prosecution.The TRC, the first of the nineteen held internationally to stage public hearings, was seen by many as a crucial component of the transition to full and free democracy in South Africa. Truth_and_Reconciliation_Commission_(South_Africa) | |
| Jupiter Trojan Jupiter Trojans, commonly called Trojans or Trojan asteroids, are a large group of objects that share the orbit of the planet Jupiter around the Sun. Relative to Jupiter, each Trojan librates around one of the planet's two Lagrangian points of stability, L4 and L5, that respectively lie 60° ahead of and behind the planet in its orbit. Trojan asteroids are distributed in two elongated, curved regions around these Lagrangian points with an average semi-major axis of about 5.2 Jupiter_Trojan | |
| Tropical year A tropical year (also known as a solar year) is the length of time that the Sun takes to return to the same position in the cycle of seasons, as seen from Earth; for example, the time from vernal equinox to vernal equinox, or from summer solstice to summer solstice.A tropical year can equivalently be defined as the time taken for the Sun's tropical longitude (longitudinal position along the ecliptic relative to its position at the vernal equinox) to increase by 360 degrees (that is, to complete one full seasonal circuit). Tropical_year | |
| Tropical year Talk:Tropical_year | |
| Telesto (moon) Telesto_(moon) | |
| The Bell Curve The Bell Curve is a controversial, best-selling 1994 book by the late Harvard psychologist Richard J. Herrnstein and American Enterprise Institute political scientist Charles Murray. Its central point is that intelligence is a better predictor of many factors including financial income, job performance, unwed pregnancy, and crime than parents' socioeconomic status or education level. The_Bell_Curve | |
| Tritium Tritium ( or Tritium | |
| Tau Ceti Tau_Ceti | |
| Tupac Shakur Tupac Amaru Shakur (June 16, 1971 stage names 2Pac (or simply Pac) and Makaveli, was an American rapper. In addition to his status as a top-selling recording artist, Shakur was a promising actor and a social activist. Most of Shakur's songs are about growing up amid violence and hardship in ghettos, racism, problems in society and conflicts with other rappers. Tupac_Shakur | |
| Tantra/Archive 1 Talk:Tantra/Archive_1 | |
| Universe The Universe is defined as everything that physically exists:space and time, all forms of matter, energy and momentum, and the physical laws and constants that govern them. However, the term Universe may be used in slightly different contextual senses, denoting such concepts as the cosmos, the world or Nature. Universe | |
| United Nations Security Council The United Nations Security Council (UNSC) is one of the principal organs of the United Nations and is charged with the maintenance of international peace and security. Its powers, outlined in the United Nations Charter, include the establishment of peacekeeping operations, the establishment of international sanctions, and the authorization of military action. Its powers are exercised through United Nations Security Council Resolutions. United_Nations_Security_Council | |
| Ultraviolet Ultraviolet (UV) light is electromagnetic radiation with a wavelength shorter than that of visible light, but longer than x-rays, in the range 10 nm to 400eV to 124 eV. It is so named because the spectrum consists of electromagnetic waves with frequencies higher than those that humans identify as the color violet.UV light is found in sunlight and is emitted by electric arcs and specialized lights such as black lights. Ultraviolet | |
| Economy of the United States Economy_of_the_United_States | |
| Unitarian Universalism Unitarian Universalism (UUism) is a theologically liberal religion characterized by its support for a "free and responsible search for truth and meaning." Unitarian Universalists do not share a creed; rather, they are unified by their shared search for spiritual growth. Unitarian Universalists draw on many different theological sources and have a wide range of beliefs and practices. Unitarian_Universalism | |
| USS Liberty incident The USS Liberty incident was an attack on a neutral United States Navy technical research ship, USS Liberty, by Israeli jet fighter planes and motor torpedo boats on June 8, 1967, during the Six-Day War. The combined air and sea attack killed 34 crewmembers (naval officers, seamen, two Marines, and a civilian), wounded 171 crew members, and damaged the ship severely. The ship was in international waters north of the Sinai Peninsula, about northwest from the Egyptian city of Arish. USS_Liberty_incident | |
| Umbriel (moon) Umbriel_(moon) | |
| USA PATRIOT Act The USA PATRIOT Act, commonly known as the "Patriot Act", is a statute enacted by the United States Government that President George W. Bush signed into law on October 26, 2001. The contrived acronym stands for 'niting and Strengthening America by Providing Appropriate Tools Required to Intercept and Obstruct Terrorism Act of 2001 (Public Law ).The Act increases the ability of law enforcement agencies to search telephone, e-mail communications, medical, financial, and other records; eases restrictions on foreign intelligence gathering within the United States; expands the Secretary of the Treasury’s authority to regulate financial transactions, particularly those involving foreign individuals and entities; and enhances the discretion of law enforcement and immigration authorities in detaining and deporting USA_PATRIOT_Act | |
| Virgil Talk:Virgil | |
| Venezuela Venezuela | |
| History of video games Video games were introduced as a commercial entertainment medium in 1971, becoming the basis for a new entertainment industry in the late 1970s/early 1980s in the United States, Japan, and Europe. After a disastrous industry collapse in 1983 and a subsequent rebirth two years later, the video game industry has experienced sustained growth for over two decades to become an $22 billion industry, which rivals the motion picture industry as the most profitable entertainment industry in the world. History_of_video_games | |
| Vanadium Vanadium () is the chemical element with the symbol V and atomic number 23. It is a soft, silvery grey, ductile transition metal. The formation of an oxide layer stabilizes the metal against oxidation. Andrés Manuel del Río discovered vanadium in 1801 by analyzing the mineral vanadinite, and named it erythronium. Vanadium | |
| Vladimir Nabokov Vladimir Vladimirovich Nabokov (, ) (,c Saint Petersburg – 2 July 1977, Montreux) was a multilingual Russian novelist and short story writer. Russian, then rose to international prominence as a master English prose stylist. He also made contributions to entomology and had an interest in chess problems.Nabokov's Lolita (1955) is frequently cited as amongst his most important novels, and is his most widely known, exhibiting the love of intricate word play and descriptive detail that characterized all his works. Vladimir_Nabokov | |
| Vangelis Evangelos Odysseas Papathanassiou (born March 29, 1943) (Greekcomposer of electronic, progressive, ambient and neoclassical music, under the artist name Vangelis (a diminutive of Evangelos; in English). He is best known for his Academy Award winning score for the film Chariots of Fire, and scores for the films Blade Runner and 1492: Conquest of Paradise.Vangelis began his professional musical career working with several popular bands of the 1960s such as The Formynx and Aphrodite's Child, with the latter's album, 666, going on to be recognized as a psychedelic "classic". Vangelis | |
| Vacuum vacuum is a volume of space that is essentially empty of matter, such that its gaseous pressure is much less than atmospheric pressure. The word comes from the Latin term for "empty," but in reality, no volume of space can ever be perfectly empty. Even putting aside the complexities of the quantum vacuum, the classical notion of a perfect vacuum with gaseous pressure of exactly zero is only a philosophical concept and never is observed in practice. Vacuum | |
| Visual cortex The term visual cortex refers to the primary visual cortex (also known as striate cortex or V1) and extrastriate visual cortical areas such as V2, V3, V4, and V5. The primary visual cortex is anatomically equivalent to Brodmann area 17, or BA17. Visual_cortex | |
| Vincent van Gogh Vincent Willem van Gogh (30 March 1853Dutch Post-Impressionist artist. Some of his paintings are now among the world's best known, most popular and expensive works of art.Van Gogh spent his early adult life working for a firm of art dealers. After a brief spell as a teacher, he became a missionary worker in a very poor mining region. Vincent_van_Gogh | |
| Virial theorem mechanics, the virial theorem provides a general equation relating the average over time of the total kinetic energy, , of a stable system, bound by potential forces, with that of the total potential energy, , where angle brackets represent the average over time of the enclosed quantity. Virial_theorem | |
| Volcanic Explosivity Index Talk:Volcanic_Explosivity_Index | |
| Vega Vega |
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