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Beth-horon
Beth-horon , in the Bible, name of two neighboring towns on the northerly road from Lod to Jerusalem. They are the modern Beit Ur at Tahta and Beit Ur al Fawga in the West Bank. In this strategic locality two historic Jewish victories were gained, by Joshua and by Judas Maccabaeus.
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free energy
free energy or Gibbs free energy, quantity derived from the relationships between heat and work studied in thermodynamics and used as a measure of the relative stability of a physical or chemical system, i.e., the tendency of the system to react or change. If the change in free energy, &Delta...
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Ur
Ur , ancient city of Sumer, S Mesopotamia. The city is also known as Ur of the Chaldees. It was an important center of Sumerian culture (see Sumer ) and is identified in the Bible as the home of Abraham. The site was discovered in the 19th cent., but it was not until the excavations of C. Leonard W...
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Guy de Maupassant
Guy de Maupassant , 1850-93, French novelist and short-story writer, of an ancient Norman family. He worked in a government office at Paris and became known c.1880 as the most brilliant of the circle of Zola. He poured out a prodigious number of short stories, novels, plays, and travel sketches unti...
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Urs Graf
Urs Graf , c.1485-1528, Swiss wood engraver, etcher, painter, and goldsmith, studied at Basel. He was influenced by the work of Dürer and Hans Baldung. One of the first to employ effectively the technique of white-line engraving, he was known for his lively humor and fantasy, as well as for his...
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Aiken
Aiken city (1990 pop. 19,872), seat of Aiken co., W S.C.; inc. 1835. A resort and polo center and a training area for Thoroughbreds, Aiken has apparel, printing and publishing, drug, and chemical industries. Agricultural products include poultry, livestock, grain, peanuts, cotton, and peaches. Kaol...
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Bartlesville
Bartlesville , city (1990 pop. 34,256), seat of Washington co., NE Okla., on the Caney River; inc. 1897. It is a distribution center for a ranching and rich oil-producing area. Petroleum production, marketing, and research have been major enterprises since the first well was tapped in 1897. Of inter...
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Richland
Richland city (1990 pop. 32,315), Benton co., S Wash., at the confluence of the Columbia and Yakima rivers, in an irrigated farm and vineyard region; inc. 1958. It is the headquarters of the U.S. Department of Energy's Hanford Nuclear Reservation (620 sq mi/1,606 sq km), on which the city's economy...
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Lope de Aguirre
Lope de Aguirre , c.1510-1561, Spanish rebel and adventurer in colonial South America. He was often involved in violence and sedition before joining (1560) the expedition of Pedro de Ursúa down the Marañón and the Amazon. He was one of the men who overthrew and killed Ursú...
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energy
energy in physics, the ability or capacity to do work or to produce change. Forms of energy include heat , light , sound , electricity , and chemical energy. Energy and work are measured in the same units—foot-pounds, joules, ergs, or some other, depending on the system of measurement bei...
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