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Schwartz, Delmore

(Encyclopedia)Schwartz, Delmore, 1913–66, American poet, b. New York City, grad. New York Univ., 1935. He was an editor of the Partisan Review (1943–55). His first work, In Dreams Begin Responsibilities, includ...

shock wave

(Encyclopedia)shock wave, wave formed of a zone of extremely high pressure within a fluid, especially the atmosphere, that propagates through the fluid at a speed in excess of the speed of sound. A shock wave is ca...

Sábato, Ernesto

(Encyclopedia)Sábato, Ernesto ārnāsˈtō säˈbätō [key], 1911–2011, Argentinean novelist and literary critic, b. Rojas. He received his doctorate in physics (1937) and taught until removed for anti-Peronist...

Capecchi, Mario Renato

(Encyclopedia)Capecchi, Mario Renato, 1937–, American geneticist, b. Verona, Italy, Ph.D. Harvard, 1967. On the faculty at Harvard from 1967 to 1973, Capecchi became a professor at the Univ. of Utah School of Med...

Cattell, Raymond Bernard

(Encyclopedia)Cattell, Raymond Bernard kətĕlˈ [key], 1905–98, American psychologist, b. Staffordshire, England. He came to the United States in 1937 and served as research professor at the Univ. of Illinois (1...

actinomycosis

(Encyclopedia)actinomycosis ăkˌtənōmīkōˈsĭs [key], chronic suppurative infection that occurs around the face and neck. The disease is characterized by the formation of abscesses, or pus-filled cavities, bel...

Rey, H. A.

(Encyclopedia)Rey, H. A., 1898–1977, German-American writer and illustrator of children's books, b. Hamburg as Hans Augusto Reyersbach. He and his wife, Margret Rey, 1906–1996, b. Hamburg as Margarete Elisabeth...

pothole

(Encyclopedia)pothole, in geology, cylindrical pit formed in the rocky channel of a turbulent stream. It is formed and enlarged by the abrading action of pebbles and cobbles that are carried by eddies, or circular ...

pelvis

(Encyclopedia)pelvis, bony, basin-shaped structure that supports the organs of the lower abdomen. It receives the weight of the upper body and distributes it to the legs; it also forms the base for numerous muscle ...

proof, in mathematics

(Encyclopedia)proof, in mathematics, finite sequence of propositions each of which is either an axiom or follows from preceding propositions by one of the rules of logical inference (see symbolic logic). Mathematic...