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McDonald, Arthur Bruce

(Encyclopedia)McDonald, Arthur Bruce, 1943–, Canadian astrophysicist, Ph.D. California Institute of Technology, 1969. McDonald was a researcher at the Chalk River Nuclear Laboratories in Ottawa, Canada, from 1970...

Kajita, Takaaki

(Encyclopedia)Kajita, Takaaki 1959–, Japanese physicist, Ph.D. Univ. of Tokyo, 1986. In 1988 he joined the faculty at the Univ. of Tokyo, where he is now professor and director of the Institute for Cosmic Ray Res...

Kurapaty

(Encyclopedia)Kurapaty, wooded area, northern outskirts of Minsk, Belarus, site of the execution of thousands of Belarussians and others by Soviet secret police between 1937 and 1941. The official count of those ex...

Ames, Ezra

(Encyclopedia)Ames, Ezra, 1768–1836, American painter, b. Framingham, Mass. Early in his life he worked as a carriage painter, miniaturist, engraver, and decorator, first in Worcester, Mass., and later in Albany,...

flight

(Encyclopedia)CE5 Aircraft motions and control surfaces: Yaw, or motion to the left or right, is controlled by the rudder. Pitch, or climbing or dropping, is controlled by the elevators, which move in the same d...

suspension, in chemistry

(Encyclopedia)suspension, in chemistry, mixture of two substances, one of which is finely divided and dispersed in the other. Common suspensions include sand in water, fine soot or dust in air, and droplets of oil ...

charcoal

(Encyclopedia)charcoal, substance obtained by partial burning or carbonization (destructive distillation) of organic material. It is largely pure carbon. The entry of air during the carbonization process is control...

vestments

(Encyclopedia)vestments, garments worn by ecclesiastics in ceremonial functions. The cassock, a close-fitting gown buttoning down the front and reaching to the feet, is not a vestment so much as the daily uniform o...

reed organ

(Encyclopedia)reed organ, an organ in which air is forced over free reeds by means of bellows, usually worked by pedals. It is played by the use of one or more keyboards. Variations in tone are produced by stops th...

Cavendish, Henry

(Encyclopedia)Cavendish, Henry, 1731–1810, English physicist and chemist, b. Nice. He was the son of Lord Charles Cavendish and grandson of the 2d duke of Devonshire. He was a recluse, and most of his writings we...