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Silver Spring

(Encyclopedia)Silver Spring, uninc. city (1990 pop. 76,046), Montgomery co., W central Md., a residential suburb of Washington, D.C. It is a major suburban office center and has a large naval ordnance laboratory, s...

digital-to-analog conversion

(Encyclopedia)digital-to-analog or D/A conversion, the process of changing discrete digital data into a continuously varying signal in relation to a standard or reference. There are two types of converters: electro...

Anderson, Laurie

(Encyclopedia)Anderson, Laurie, 1947–, American performance artist, b. Chicago. Originally a sculptor, she was influenced by Philip Glass and other avant-garde composers in the early 1970s and soon turned to the ...

Grace, princess consort of Monaco

(Encyclopedia)Grace, 1929–82, princess consort of Monaco, b. Philadelphia as Grace Patricia Kelly. She acted on stage and television in New York, and made her film debut in 1951. Cool, blonde, and patrician, she ...

Graf, Steffi

(Encyclopedia)Graf, Steffi gräf, grăf [key], 1969–, German tennis player. A powerful baseliner, she drew international attention by winning the 1984 Olympic demonstration event. Graf won her first major title, ...

Erbil

(Encyclopedia)Erbil bīlˌ –bĭlˌ [key], city and capital of Kurdistan Region, N Iraq. A commercial, agr...

Jack Russell terrier

(Encyclopedia)Jack Russell terrier, breed of dog developed in the 19th cent. by an English clergyman, the Rev. John (Parson Jack) Russell, 1795–1883, for hunting. The Jack Russell resembles the fox terrier and, l...

Layton, Irving

(Encyclopedia)Layton, Irving, 1912–2006, Canadian poet, b. Romania as Israel Lazarovitch. His family emigrated to Montreal when he was an infant. He attended Macdonald College (B.Sc., 1939) and McGill Univ. (M.A....

Weber, Max, American painter

(Encyclopedia)Weber, Max wĕbˈər [key], 1881–1961, American painter, b. Russia. At 10 he accompanied his family to Brooklyn, N.Y. He studied art at Pratt Institute and in 1905 went abroad. In Paris he studied u...

Trevor-Roper, Hugh Redwald, Baron Dacre of Glanton

(Encyclopedia)Trevor-Roper, Hugh Redwald, Baron Dacre of Glanton dāˈkə [key], 1914–2003, British historian, b. Glanton, Northumberland. He was educated at Oxford, where he was later (1957–80) Regius professo...