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Bond, Julian

(Encyclopedia)Bond, Julian (Horace Julian Bond), 1940–2015, U.S. civil-rights leader, b. Nashville, Tenn. As a student at Morehouse College, he participated in sit-ins at segregated Atlanta restaurants. He was a ...

Boucher, François

(Encyclopedia)Boucher, François fräNswäˈ bo͞oshāˈ [key], 1703–70, French painter. Boucher's art embodied the spirit of his time; it was elegant, frivolous, and artificial. He studied briefly with François...

acceleration

(Encyclopedia)acceleration, change in the velocity of a body with respect to time. Since velocity is a vector quantity, involving both magnitude and direction, acceleration is also a vector. In order to produce an ...

conducting

(Encyclopedia)conducting, in music, the art of unifying the efforts of a number of musicians simultaneously engaged in musical performance. In the Middle Ages and Renaissance the conductor was primarily a time beat...

uncertainty principle

(Encyclopedia)uncertainty principle, physical principle, enunciated by Werner Heisenberg in 1927, that places an absolute, theoretical limit on the combined accuracy of certain pairs of simultaneous, related measur...

Steichen, Edward

(Encyclopedia)Steichen, Edward stīˈkən [key], 1879–1973, American photographer, b. Luxembourg, reared in Hancock, Mich. Steichen is credited with the transformation of photography into an art form. At 16, whil...

Lincoln Memorial

(Encyclopedia)Lincoln Memorial, monument, 107 acres (45 hectares), in Potomac Park, Washington, D.C.; built 1914–17. The building, designed by Henry Bacon and styled after a Greek temple, has 36 Doric columns rep...

Jaazaniah

(Encyclopedia)Jaazaniah jāˌāzənīˈə [key], in the Bible. 1 Head of a number of idolatrous priests whom Ezekiel saw in a vision. 2 Captain active in the politics of Palestine at the time of the fall of Jerusal...

Liberalia

(Encyclopedia)Liberalia lĭbərāˈlēə [key], in Roman religion, festival of Liber and Libera. The rustic festival of great rejoicing and merrymaking was held on Mar. 17. Roman youths generally first assumed the ...

Luton

(Encyclopedia)Luton lo͞oˈtən [key], borough and unitary authority (1991 pop. 163,209), S central England on the Lea River. Hats, automobiles, ball bearings, and aircraft parts are among the products manufactured...
 

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