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slate

(Encyclopedia)slate, fine-grained rock formed when sedimentary rocks such as shale are metamorphosed by great pressure. Slate splits into perfectly cleaved, broad thin layers; this characteristically regular and pl...

Hughes, Howard Robard

(Encyclopedia)Hughes, Howard Robard, 1905–76, U.S. business executive, b. Houston. As a young man he inherited (1925) the patent rights to an oil tool drill, which, manufactured by the Hughes Tool Company, formed...

Reynolds number

(Encyclopedia)Reynolds number [for Osborne Reynolds], dimensionless quantity associated with the smoothness of flow of a fluid. It is an important quantity used in aerodynamics and hydraulics. At low velocities flu...

vancomycin

(Encyclopedia)vancomycin vănˌkōmīˈsĭn [key], antibiotic resembling penicillin in the way it acts. It is derived from the bacterium Streptomyces orientalis, which was isolated from soil of India and Indonesia....

International Peace Bureau

(Encyclopedia)International Peace Bureau (IPB), organization est. 1891 in Bern, Switerland, by Fredrik Bajer and other members of the third World Peace Congress. Dedicated to promoting world peace, it brought toget...

Kołakowski, Leszek

(Encyclopedia)Kołakowski, Leszek lĕshˈĕk kôˌwəkôfˈskē [key], 1927–2009, Polish philosopher, b. Radom, Ph.D Univ. of Warsaw, 1953. A Marxist revisionist and a critic of the Eastern European Communism he ...

Neanderthal man

(Encyclopedia)Neanderthal man –tôlˌ [key], a species of Homo, the genus to which contemporary humans belong, known as H. neandertalensis after Neanderthal (now Neandertal), Germany, the valley where the first s...

fold

(Encyclopedia)fold, in geology, bent or deformed arrangement of stratified rocks. These rocks may be of sedimentary or volcanic origin. Although stratified rocks are normally deposited on the earth's surface in hor...

District of Columbia, University of the

(Encyclopedia)District of Columbia, University of the, at Washington, D.C.; coeducational; land-grant and federally supported; est. 1976 with the merger of three existing colleges; predominantly African American. I...

Field of the Cloth of Gold

(Encyclopedia)Field of the Cloth of Gold, locality between Guines and Ardres, not far from Calais, in France, where in 1520 Henry VIII of England and Francis I of France met for the purpose of arranging an alliance...
 

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