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Bohr, Niels Henrik David
(Encyclopedia)Bohr, Niels Henrik David bōr [key], 1885–1962, Danish physicist, one of the foremost scientists of modern physics. He studied at the Univ. of Copenhagen (Ph.D. 1911) and carried on research on the...bicycle
(Encyclopedia)bicycle, light, two-wheeled vehicle driven by pedals. The name velocipede is often given to early forms of the bicycle and to its predecessor, the dandy horse, a two-wheeled vehicle moved by the thrus...rutherfordium
(Encyclopedia)rutherfordium rŭᵺˌərfôrˈdēəm [key], artificially produced radioactive chemical element; symbol Rf; at. no. 104; mass number of most stable isotope 265; m.p., b.p., and sp. gr. unknown; valenc...Rauschenberg, Robert
(Encyclopedia)Rauschenberg, Robert rouˈshənbûrgˌ [key], 1925–2008, American painter, b. Port Arthur, Tex., as Milton Ernest Rauschenberg. He studied at the Kansas City Art Institute, with Josef Albers at Blac...Wettin
(Encyclopedia)Wettin vĕtˈĭn [key], German dynasty, which ruled in Saxony, Thuringia, Poland, Great Britain, Belgium, and Bulgaria. It takes its name from a castle on the Saale near Halle. The family gained promi...electron
(Encyclopedia)electron, elementary particle carrying a unit charge of negative electricity. Ordinary electric current is the flow of electrons through a wire conductor (see electricity). The electron is one of the ...Tudor
(Encyclopedia)Tudor, royal family that ruled England from 1485 to 1603. Its founder was Owen Tudor, of a Welsh family of great antiquity, who was a squire at the court of Henry V and who married that king's widow, ...illustration
(Encyclopedia)illustration, any type of picture or decoration used in conjunction with a text to embellish its appearance or to clarify its meaning. Illustration is as old as writing, with both originating in the p...Jewish liturgical music
(Encyclopedia)Jewish liturgical music, the music used in the religious services of the Jews. The Bible and the Talmud record that spontaneous music making was common among the ancient Jews on all important occasion...diplomatic service
(Encyclopedia)diplomatic service, organized body of agents maintained by governments to communicate with one another. In the 20th and 21st cent. there have been numerous meetings of heads of state and foreign min...Browse by Subject
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