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Allen, Paul Gardner
(Encyclopedia)Allen, Paul Gardner, 1953–2018, American business executive and philanthropist, b. Seattle. He dropped out of Washington State Univ. (1974) and with his friend Bill Gates co-founded (1975) Microsoft...Dulles, Allen Welsh
(Encyclopedia)Dulles, Allen Welsh dŭlˈəs [key], 1893–1969, U.S. public official, b. Watertown, N.Y.; brother of John Foster Dulles. The Dulles brothers, born into America's political establishment, became extr...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...Cherenkov radiation
(Encyclopedia)Cherenkov radiation or Cerenkov radiation [for P. A. Cherenkov], light emitted by a transparent medium when charged particles pass through it at a speed greater than the speed of light in the medium. ...adaptive radiation
(Encyclopedia) CE5 Adaptive radiation in Hawaiian honey-creepers adaptive radiation, in biology, the evolution of an ancestral species, which was adapted to a particular way of life, into many diverse species, e...radiation chemistry
(Encyclopedia)radiation chemistry: see radiochemistry. ...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...Tamm, Igor Yevgenyevich
(Encyclopedia)Tamm, Igor Yevgenyevich, 1895–1971, Soviet physicist, Ph.D. Moscow State Univ., 1933. He was a researcher at the P. N. Lebedev Physical Institute in Moscow from 1934 until his death in 1971. Tamm an...hedge
(Encyclopedia)hedge, ornamental or protective barrier composed of shrubs or small trees growing in close rows. The plants may be allowed to grow naturally or may be trimmed to various heights and shapes (see topiar...Browse by Subject
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