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Huygens, Christiaan

(Encyclopedia)Huygens, Christiaan krĭsˈtyän hoiˈgəns [key], 1629–95, Dutch mathematician and physicist; son of Constantijn Huygens. He improved telescopic lenses and discovered (1655) a satellite of Saturn a...

Brattain, Walter Houser

(Encyclopedia)Brattain, Walter Houser, 1902–87, American physicist, b. Xiamen, China, Ph.D. Univ. of Minnesota, 1929. He was a researcher at Bell Laboratories in Murray Hill, N.J. from 1929 to 1967. He then taugh...

Penzias, Arno Allan

(Encyclopedia)Penzias, Arno Allan, 1933–, German-American physicist, b. Munich, Germany, Ph.D. Columbia Univ., 1962. He fled Nazi Germany with his family and after finishing school began work at Bell Telephone La...

Buyid

(Encyclopedia)Buyid bo͞oˈyĭd [key], Shiite Islamic dynasty of N Persian descent that controlled Iraq and Persia from c.945 to 1060; founded by the sons of Buyeh. In the 930s, Buyeh's sons (Ali, Hasan, and Ahmad)...

Lomond, Loch

(Encyclopedia)Lomond, Loch lŏkh lōˈmənd, –mən [key], largest freshwater lake in Great Britain, 23 mi (37 km) long and from 1 to 5 mi (1.6–8.1 km) wide, in Argyll and Bute, West Dunbartonshire, and Stirling...

Muhammad VI, king of Morocco

(Encyclopedia)Muhammad VI, 1963–, king of Morocco (1999–), formerly Muhammad ben Al-Hassan, crown prince Sidi Muhammad. He studied at Muhammad V Univ., Rabat, where he received bachelor's (1985) and master's (1...

Symonds, John Addington

(Encyclopedia)Symonds, John Addington sĭmˈənz [key], 1840–93, English author. Educated at Harrow and Oxford, constant ill health exiled him for the greater part of his life to Italy and Switzerland. His many w...

Comoros, the

(Encyclopedia)CE5 Comoros, the kŏmˈərōs [key], officially Union of the Comoros (2020 est. pop. 869,601), 838 sq mi ...

kite, in aviation and recreation

(Encyclopedia)kite, in aviation, aircraft restrained by a towline and deriving its lift from the aerodynamic action of the wind flowing across it. Commonly the kite consists of a light framework upon which paper, s...

Robinson, Sugar Ray

(Encyclopedia)Robinson, Sugar Ray, 1920–89, American boxer, b. Detroit as Walker Smith, Jr. He began boxing after three years of high school in New York City. Having won all his amateur fights (about 90), includi...