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Tippett, Sir Michael

(Encyclopedia)Tippett, Sir Michael, 1905–98, English composer, b. London. Tippett studied at the Royal College of Music. During World War II he was briefly imprisoned as a conscientious objector. His strongly hel...

rickets

(Encyclopedia)rickets or rachitis rəkīˈtĭs [key], bone disease caused by a deficiency of vitamin D or calcium. Essential in regulating calcium and phosphorus absorption by the body, vitamin D can be formed in t...

lens, in optics

(Encyclopedia) CE5 Lenses lens, device for forming an image of an object by the refraction of light. In its simplest form it is a disk of transparent substance, commonly glass, with its two surfaces curved or wi...

Eddington, Sir Arthur Stanley

(Encyclopedia)Eddington, Sir Arthur Stanley, 1882–1944, British astronomer and physicist. He was chief assistant (1906–13) at the Royal Observatory, Greenwich, and was from 1913 Plumian professor of astronomy a...

bassoon

(Encyclopedia)bassoon băso͞onˈ [key], double-reed woodwind instrument that plays in the bass and tenor registers. Its 8-ft (2.4-m) conical tube is bent double, the instrument thus being about 4 ft (1.2 m) high. ...

bonsai

(Encyclopedia)bonsai bōnˈsī [key], art of cultivating dwarf trees in containers. Bonsai, developed by the Japanese more than a thousand years ago, is derived from the Chinese practice of growing miniature plants...

Arthur, Chester Alan

(Encyclopedia)Arthur, Chester Alan, 1829–86, 21st President of the United States (1881–85), b. Fairfield, Vt. He studied law and before the Civil War practiced in New York City. In the war he was (1861–63) qu...

American Legion

(Encyclopedia)American Legion, national association of male and female war veterans, founded (1919) in Paris. Membership is open to veterans of World Wars I and II, the Korean War, and the Vietnam War. The preamble...

fracture

(Encyclopedia)fracture, breaking of a bone. A simple fracture is one in which there is no contact of the broken bone with the outer air, i.e., the overlying tissues are intact. In a comminuted fracture the bone is ...

Cornell, Ezra

(Encyclopedia)Cornell, Ezra, 1807–74, American financier and founder of Cornell Univ., b. Westchester Landing, N.Y. Cornell, who began life as a laborer, was of an ingenious mechanical bent and had a shrewd busin...
 

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