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English Wikipedia references for Sciencenews.org 1-20 of 500
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| Acupuncture Acupuncture | |
| Alexander Grothendieck Alexander Grothendieck (born March 28, 1928 in Berlin, Germany) is considered one of the greatest mathematicians of the 20th century.He is most famous for his revolutionary advances in algebraic geometry, but he has also made major contributions to algebraic topology, number theory, category theory, Galois theory, descent theory, commutative homological algebra and functional analysis. Alexander_Grothendieck | |
| Anus anus is an opening at the opposite end of an animal's digestive tract from the mouth. Its function is to expel feces, unwanted semi-solid matter produced during digestion, which, depending on the type of animal, may be one or more ofbones; food material after all the nutrients have been extracted, for example cellulose or lignin; ingested matter which would be toxic if it remained in the digestive tract; and dead or excess gut bacteria and other endosymbionts. Anus | |
| Bipedalism Bipedalism is a form of terrestrial locomotion where an organism moves by means of its two rear limbs, or legs. An animal or machine that usually moves in a bipedal manner is known as a biped (), meaning "two feet" (from the Latin bi for "two" and ped for "foot"). Bipedalism | |
| Christopher Columbus Christopher Columbus (c.1451 Genoese navigator, colonizer and explorer whose voyages across the Atlantic Ocean—funded by Queen Isabella of Spain—led to general European awareness of the American continents in the Western Hemisphere. Although not the first to reach the Americas from Europe—he was preceded by the Norse, led by Leif Ericson, who built a temporary settlement 500 years earlier at L'Anse aux Meadows— Columbus initiated widespread contact between Europeans and indigenous Americans. Christopher_Columbus | |
| Catalysis Catalysis is the process in which the rate of a chemical reaction is either increased or decreased by means of a chemical substance known as a catalyst. Unlike other reagents that participate in the chemical reaction, a catalyst is not consumed by the reaction itself. Catalysis | |
| Erdős number Erdős number (), honouring the late Hungarian mathematician Paul Erdős, is a way of describing the "collaborative distance" between a person and Erdős, It was created by friends as a humorous tribute to the enormous output of Erdős, one of the most prolific modern writers of mathematical papers, and has become well-known in scientific circles as a tongue-in-cheek measurement of mathematical prominence. Erdős_number | |
| Euclidean algorithm In mathematics, the Euclidean algorithm is an efficient method for computing the greatest common divisor (GCD), also known as the greatest common factor (GCF) or highest common factor (HCF). The algorithm is also called Euclid's algorithm, after the Greek mathematician Euclid, who described it in Books[[ Euclidean_algorithm | |
| Four color theorem In mathematics, the four color theorem, or the four color map theorem, states that given any separation of a plane into contiguous regions, called a map, the regions can be colored using at most four colors so that no two adjacent regions have the same color. Four_color_theorem | |
| Golden ratio In mathematics and the arts, two quantities are in golden ratio if the ratio of the sum of the quantities to the larger one equals the ratio of the larger one to the smaller. The golden ratio is an irrational mathematical constant, approximately 1.6180339887. Golden_ratio | |
| Internet Internet is a global system of interconnected computer networks that use the standardized Internet Protocol Suite (TCP/IP). It is a network of networks that consists of millions of private and public, academic, business, and government networks of local to global scope that are linked by copper wires, fiber-optic cables, wireless connections, and other technologies.The Internet carries a vast array of information resources and services, most notably, the inter-linked hypertext documents of the World Wide Web (WWW) and the infrastructure to support electronic mail, in addition to popular services such as online chat, file transfer and file sharing, online gaming, and Voice over Internet Protocol (VoIP) person-to-person communication via voice and video. Internet | |
| Inca Empire Inca_Empire | |
| Light-emitting diode A light-emitting diode (LED) (, or just ), is an electronic light source. The LED was first invented in Russia in the 1920s, and introduced in America as a practical electronic component in 1962. Oleg Vladimirovich Losev was a radio technician who noticed that diodes used in radio receivers emitted light when current was passed through them. In 1927, he published details in a Russian journal of the first ever LED. Light-emitting_diode | |
| Leap second Leap_second | |
| Mitochondrion In cell biology, a mitochondrion (plural mitochondria) is a membrane-enclosed organelle found in most eukaryotic cells. These organelles range from 0.5μm) in diameter. Mitochondria are sometimes described as "cellul Mitochondrion | |
| Midas Midas or King Midas (in Greek Μίδας) is popularly remembered for his ability to turn everything he touched into gold:Midas touch.Midas was king of Pessinus, a city of Phrygia, who as a child was adopted by the king Gordias and Cybele, the goddess whose consort he was, and who (by some accounts) was the goddess-mother of Midas himself. Midas | |
| Miller–Urey experiment Talk:Miller–Urey_experiment | |
| Near-Earth object A near-Earth object (NEO) is a Solar System object whose orbit brings it into close proximity with the Earth. perihelion distance < 1.3 AU . They include a few thousand near-Earth asteroids (NEAs), near-Earth comets, a number of solar-orbiting spacecraft, and meteoroids large enough to be tracked in space before striking the Earth. Near-Earth_object | |
| Estrogen Estrogens (U.S., otherwise oestrogens or œstrogens) are a group of steroid compounds, named for their importance in the estrous cycle, and functioning as the primary female sex hormone.Estrogens are used as part of some oral contraceptives, in estrogen replacement therapy of postmenopausal women, and in hormone replacement therapy for transwomen. Estrogen | |
| Paleolithic The Paleolithic or Palaeolithic Age, Era, or Period, or Old Stone Age, is a prehistoric era distinguished by the development of the first stone tools, and covers roughly 99% of human history. It extends from the introduction of stone tools by hominids such as Homo habilis 2.5 or 2.6 Paleolithic |
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