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Nambu, Yoichiro

(Encyclopedia)Nambu, Yoichiro yoiˈchērō nämˈbo͞o [key], 1921–2015, Japanese-American physicist, b. Tokyo, D.Sc. Univ. of Tokyo, 1952. He studied at the Institute for Advanced Study, Princeton, with Albert E...

Graham, Jorie

(Encyclopedia)Graham, Jorie, 1950–, American poet, b. New York as Jorie Pepper; daughter of Beverly Pepper. Widely regarded as one of the most important American poets of the late 20th cent., she is noted for a p...

fluid mechanics

(Encyclopedia)fluid mechanics, branch of mechanics dealing with the properties and behavior of fluids, i.e., liquids and gases. Because of their ability to flow, liquids and gases have many properties in common not...

Fox, Paula

(Encyclopedia)Fox, Paula, 1923–, American writer, b. New York City. Fox's six cooly acute novels reflect her own life, particularly her miserable childhood and its psychological aftermath. Poor George (1967), her...

Alsop, Joseph

(Encyclopedia)Alsop, Joseph ôlˈsəp [key], 1910–89, and Alsop, Stewart, 1914–74, American political journalists, b. Avon, Conn. Joseph joined (1932) the New York Herald Tribune as a staff reporter and moved (...

Eberhart, Richard

(Encyclopedia)Eberhart, Richard ĕbˈərhärtˌ [key], 1904–2005, American poet, b. Austin, Minn., grad. Dartmouth (1926) and Cambridge (1929, 1933). He taught at various universities before becoming a professor ...

Constantine, Donation of

(Encyclopedia)Constantine, Donation of, Lat. Constitutum Constantini, forged document, probably drafted in the 8th cent. It purported to be a grant by Roman Emperor Constantine I of great temporal power in Italy an...

Clark, Tom Campbell

(Encyclopedia)Clark, Tom Campbell, 1899–1977, U.S. attorney general (1945–49), associate justice of the U.S. Supreme Court (1949–67), b. Dallas, Tex.; father of Ramsey Clark. He received his law degree from t...

Penrose, Sir Roger

(Encyclopedia)Penrose, Sir Roger, 1931–, British mathematical physicist, Ph.D. Cambridge, 1958. He taught and conducted research at a number of British and American colleges and universities before becoming a pro...

twilight

(Encyclopedia)twilight, period between sunset and total darkness or between total darkness and sunrise. Total darkness does not occur immediately when the sun sinks below the horizon because light from the sun that...