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grid computing

(Encyclopedia)grid computing, the concurrent application of the processing and data storage resources of many computers in a network to a single problem. It also can be used for load balancing as well as high avail...

Tusk, Donald

(Encyclopedia)Tusk, Donald to͞osk [key], 1957–, Polish political leader, prime minister of Poland (2007–14), b. Gdańsk. After studying history at Gdańsk Univ., he became active in the Solidarity movement in ...

Urartu

(Encyclopedia)Urartu o͞orärˈto͞o [key], ancient kingdom of Armenia and N Mesopotamia, centered about Lake Van in present-day E Turkey. It was the biblical Ararat. Urartu flourished from the 13th cent. to the 7t...

postimpressionism

(Encyclopedia)postimpressionism, term coined by Roger Fry to refer to the work of a number of French painters active at the end of the 19th cent. who, although they developed their varied styles quite independently...

pronghorn

(Encyclopedia)pronghorn or prongbuck, hoofed herbivorous mammal, Antilocapra americana, of the W United States and N Mexico. Although it is often called the American, or prong-horned, antelope, the pronghorn is the...

Quine, W. V.

(Encyclopedia)Quine, W. V. (Willard Van Orman Quine) kwīn [key], 1908–2000, American philosopher and mathematical logician, b. Akron, Ohio, grad. Oberlin, 1930. He studied at Harvard (Ph.D., 1932) under Alfred N...

Qumran

(Encyclopedia)Qumran ko͞omränˈ [key], ancient village on the northwest shore of the Dead Sea, in what is now the Israeli-occupied West Bank. It is famous for its caves, in some of which the Dead Sea Scrolls were...

ionosphere

(Encyclopedia)ionosphere īŏnˈəsfēr [key], series of concentric ionized layers forming part of the upper atmosphere of the earth from around 30 to 50 mi (50 to 80 km) to 250 to 370 mi (400 to 600 km) where it m...

Jefferson, Joseph

(Encyclopedia)Jefferson, Joseph, 1829–1905, American actor. He was the foremost of an old and distinguished family of English and American actors. Jefferson began his stage career as a child actor, and when the f...

Gueux

(Encyclopedia)Gueux gö [key] [Fr.,=beggars], 16th-century Dutch revolutionary party. In 1566 more than 2,000 Dutch and Flemish nobles and burghers (both Protestants and Roman Catholics) signed a document—the so-...