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Weyden, Roger van der

(Encyclopedia)Weyden, Roger van der vän dər vīˈdən [key], c.1400–1464, major early Flemish master, known also as Roger de la Pasture. He is believed to have studied with Robert Campin. His early works also s...

Velde, Henri van de

(Encyclopedia)Velde, Henri van de äNrēˈ väN də vĕld [key], 1863–1957, Belgian designer and architect. Beginning as a painter, critic, and crafts designer in Belgium and in France, he received his first grea...

Werve, Claus van de

(Encyclopedia)Werve, Claus van de klous vän də vĕrˈvə [key], d. 1439, Flemish sculptor. The nephew and student of Claus Sluter, Werve succeeded his uncle as chief sculptor to Philip the Bold, whose tomb he des...

wind

(Encyclopedia)wind, flow of air relative to the earth's surface. A wind is named according to the point of the compass from which it blows, e.g., a wind blowing from the north is a north wind. The diurnal, or dai...

African Methodist Episcopal Church

(Encyclopedia)African Methodist Episcopal Church, Methodist denomination (see Methodism). It was established in 1816 in Philadelphia with Richard Allen as its first bishop. In 1991 there were about 3.5 million memb...

belt

(Encyclopedia)belt, girdle or band worn around the body, originally to confine loose garments. Later the girdle became a decorative accessory and was used to carry belongings. The Greeks and Romans wore ornamental ...

blackbody

(Encyclopedia)blackbody, in physics, an ideal black substance that absorbs all and reflects none of the radiant energy falling on it. Lampblack, or powdered carbon, which reflects less than 2% of the radiation fall...

Teller, Edward

(Encyclopedia)Teller, Edward, 1908–2003, American physicist, b. Budapest, Hungary, Ph.D. Univ. of Leipzig, 1930, where he studied under Werner Heisenberg. Fleeing the Nazis, he came to the United States in 1935 a...

Peters, Vera

(Encyclopedia)Peters, Vera (Mildred Vera Peters), 1911–93, Canadian radiation oncologist and clinical investigator, b. Rexdale, Ont., M.D. Univ. of Toronto, 1934. Beginning in 1935, she studied the treatment of H...

radiology

(Encyclopedia)radiology, branch of medicine specializing in the use of X rays, gamma rays, radioactive isotopes, and other forms of radiation in the diagnosis and treatment of disease. X ray machines and fluoroscop...