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Coolidge, Calvin

(Encyclopedia)Coolidge, Calvin, 1872–1933, 30th President of the United States (1923–29), b. Plymouth, Vt. John Calvin Coolidge was a graduate of Amherst College and was admitted to the bar in 1897. He practice...

Challenger

(Encyclopedia)Challenger, U.S. space shuttle. It exploded (Jan. 28, 1986) 73 seconds into its tenth flight, killing all seven crew members, including the first civilian in space, schoolteacher Christa McAuliffe. Th...

McDonald Observatory

(Encyclopedia)McDonald Observatory, astronomical observatory located on Mt. Locke, near Fort Davis, Tex.; founded in 1932, sponsored by the Univ. of Texas in cooperation with the Univ. of Chicago. Its equipment inc...

Rojas Pinilla, Gustavo

(Encyclopedia)Rojas Pinilla, Gustavo go͞ostäˈvō rōˈhäs pēnēˈyä [key], 1900–1975, president of Colombia (1953–57). As head of the armed forces he led the coup that ousted President Laureano Gómez in ...

Young, John Watts

(Encyclopedia)Young, John Watts, 1930–2018, American astronaut, b. San Francisco. A Navy test pilot, he joined the National Aeronautics and Space Administration's astronaut program in 1962. Young served as pilot ...

Eysenck, Hans Jurgen

(Encyclopedia)Eysenck, Hans Jurgen häns yo͝orˈgən īˈsĕngk [key], 1916–97, British psychologist. Best known for his theory of human personality, Eysenck suggested that personality is biologically determined...

Keating, Paul

(Encyclopedia)Keating, Paul, 1944–, Australian politician. A trade-union official and member of the Labor party, he was first elected to parliament in 1969. As federal treasurer (treasury minister) from 1983 to 1...

Bello, Sir Ahmadu

(Encyclopedia)Bello, Sir Ahmadu, 1910–66, Nigerian political, b. Rabbah (now in Sokoto State), NW Nigeria. A Fulani and descendent of Usuman dan Fodio, the founder of the Sokoto caliphate, he was a major figure i...

Cheney, Dick

(Encyclopedia)Cheney, Dick (Richard Bruce Cheney) chēˈnē, chāˈ– [key], 1941–, Vice President of the United States (2001–9), b. Lincoln, Nebr. His family moved to Casper, Wyo., when he was 13, and he atte...

stroke

(Encyclopedia)stroke, destruction of brain tissue as a result of intracerebral hemorrhage or infarction caused by thrombosis (clotting) or embolus (obstruction in a blood vessel caused by clotted blood or other for...