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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...

Barabbas

(Encyclopedia)Barabbas bərăbˈəs [key] [Aram.,=son of the father], bandit held in jail at the time of Jesus' arrest. Pontius Pilate, who, according to the Gospels, annually released a prisoner at Passover, offer...

Pur

(Encyclopedia)Pur pûr [key] [Heb.,=lot], in the Bible, lot cast by Haman to determine the time for the murder of the Jews. See Purim. ...

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 ...

John I, king of Aragón and count of Barcelona

(Encyclopedia)John I, 1350–95, king of Aragón and count of Barcelona (1387–95), son and successor of Peter IV. During his reign Aragón lost (1388) the duchy of Athens. An enthusiastic patron of learning and a...

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...

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...

Ozias

(Encyclopedia)Ozias ōzīˈəs [key] [Gr.,=Heb. Uzziah], in the Bible. 1 Same as Uzziah (1.) 2 Ruler of Bethulia at the time of Judith. ...

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...
 

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