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opposition

(Encyclopedia)opposition, in astronomy, alignment of two celestial bodies on opposite sides of the sky as viewed from earth. Opposition of the moon or planets is often determined in reference to the sun. Only the s...

Craters of the Moon National Monument and Preserve

(Encyclopedia)Craters of the Moon National Monument and Preserve, S central Idaho; est. 1924. The monument (53,438 acres/21,625 hectares) lies at the north end of the much larger preserve (698,940 acres/282,851 hec...

Heard Island and the McDonald Islands, Territory of

(Encyclopedia)Heard Island and the McDonald Islands, Territory of: see Heard Island. ...

Gates of the Arctic National Park and Preserve

(Encyclopedia)Gates of the Arctic National Park and Preserve, N Alaska. Located N of the Arctic Circle, the park (7,523,898 acres/3,046,113 hectares) and adjacent preserve (948,629 acres/384,060 hectares) make up t...

De Filippo, Eduardo

(Encyclopedia)De Filippo, Eduardo ādwärˈdō dā fēlĭpˈpō [key], 1900–1984, Neapolitan playwright and actor. In his scores of plays he combined pathos and farce. Napoli milionaria (1946) depicts postwar Nap...

Tchelitchew, Pavel

(Encyclopedia)Tchelitchew, Pavel päˈvĕl chālēˈchĕf [key], 1898–1957, Russian-American painter. His first commissions, ballet designs, were given him while he was living in Berlin (1921–23), whence he had...

amplitude

(Encyclopedia)amplitude ămˈplĭto͞odˌ [key], in physics, maximum displacement from a zero value or rest position. In the harmonic motion of a pendulum, the amplitude of the swing is the greatest distance reache...

Burns, George

(Encyclopedia)Burns, George, 1896–1996, b. New York City as Nathan Birnbaum, and his wife Gracie Allen, 1906–64, b. San Francisco, American comedy team (1923–58). In vaudeville in the 1920s, on radio (1932–...

music hall

(Encyclopedia)music hall. In England, the Licensing Act of 1737 confined the production of legitimate plays to the two royal theaters—Drury Lane and Covent Garden; the demands for entertainment of the rising lowe...

Weber, Wilhelm Eduard

(Encyclopedia)Weber, Wilhelm Eduard vĭlˈhĕlm āˈdo͞oärt vāˈbər [key], 1804–91, German physicist. He was professor (1831–37, 1849–91) at the Univ. of Göttingen, where he worked with C. F. Gauss on te...