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Rembrandt Harmenszoon van Rijn

(Encyclopedia)Rembrandt Harmenszoon van Rijn or Ryn rĕmˈbrănt, Du. rĕmˈbränt härˈmənsōn vän rīn [key], 1606–69, Dutch painter, etcher, and draftsman, b. Leiden. Rembrandt is acknowledged as the greate...

Barneveldt, Johan van Olden

(Encyclopedia)Barneveldt, Johan van Olden: see Oldenbarneveldt, Johan van. ...

Siebold, Philipp Franz van

(Encyclopedia)Siebold, Philipp Franz van fēˈlĭp fränts fen zēˈbôlt [key], 1796–1866, German naturalist and physician; son of A. E. von Siebold. He was noted for his studies of the natural history, ethnogra...

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...