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Mountbatten, Louis Francis Albert Victor Nicholas, 1st Earl Mountbatten of Burma

(Encyclopedia)Mountbatten, Louis Francis Albert Victor Nicholas, 1st Earl Mountbatten of Burma mountbătˈən [key], 1900–1979, British admiral; great-grandson of Queen Victoria and uncle of Philip Mountbatten, d...

Fitzgerald, George Francis

(Encyclopedia)Fitzgerald, George Francis, 1851–1901, Irish physicist. Fitzgerald was born in Dublin and studied and taught at Trinity College there. He is best known for suggesting how the ether, by causing the c...

Lorentz contraction

(Encyclopedia)Lorentz contraction lôrˈĕnts [key], in physics, contraction or foreshortening of a moving body in the direction of its motion, proposed by H. A. Lorentz on theoretical grounds and based on an earli...

Abram

(Encyclopedia)Abram: see Abraham.

Nahor

(Encyclopedia)Nahor nāˈhôr [key], in the Bible. 1 Abraham's grandfather. 2 Abraham's brother. ...

motivation

(Encyclopedia)motivation, in psychology, the intention of achieving a goal, leading to goal-directed behavior. Some human activity seems to be best explained by postulating an inner directing drive. While a drive i...

Adolf of Nassau

(Encyclopedia)Adolf of Nassau näˈsou [key], d. 1298, duke of Luxembourg, German king (1292–98). He owed his election to the ecclesiastical electors, who, fearing the growing power and ambition of the Hapsburgs,...

Mobutu Sese Seko, Lake

(Encyclopedia)Mobutu Sese Seko, Lake: see Albert, Lake. ...

Vertov, Dziga

(Encyclopedia)Vertov, Dziga, 1896–1954, Soviet filmmaker, pseudonym of Denis Kaufman. Vertov introduced the idea of “Kino-Pravda” (or cinéma vérité), which was extremely influential worldwide, affecting ci...

Murchison Falls

(Encyclopedia)Murchison Falls, rapids on the lower Victoria Nile River, NW Uganda, 22 mi (35 km) E of Lake Albert (see Albert, Lake). The river, narrowing to about 20 ft (6 m) wide, flows through precipitously clef...