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correspondence principle

(Encyclopedia)correspondence principle, physical principle, enunciated by Niels Bohr in 1923, according to which the predictions of the quantum theory must correspond to the predictions of the classical theories of...

Barney, Joshua

(Encyclopedia)Barney, Joshua bärˈnē [key], 1759–1818, American naval officer and privateer, b. Baltimore. He entered the navy early in the American Revolution, engaged in many feats of daring, and was captured...

Smith, Tony

(Encyclopedia)Smith, Tony, 1912–80, American sculptor, b. South Orange, N.J., studied Art Students League, New York City (1933–37), New Bauhaus, Chicago (1937–38). Trained as a painter and architect and for a...

Smithson, Robert

(Encyclopedia)Smithson, Robert, 1938–73, American sculptor, b. Passaic, N.J. After first making modular, serial sculpture, Smithson began to design large-scale earthworks (see land art) in the 1960s. Smithson res...

Newman, Barnett

(Encyclopedia)Newman, Barnett, 1905–70, American artist, b. New York City. A member of the New York school, Newman was one of the first to reject conventional notions of spatial composition in art. Often using mo...

Bayonne, city, United States

(Encyclopedia)Bayonne bāyōnˈ [key], city (2020 pop. 71,686), Hudson co., NE N.J., on a 3-mi (4.8-km) pen...

noise pollution

(Encyclopedia)noise pollution, human-created noise harmful to health or welfare. Transportation vehicles are the worst offenders, with aircraft, railroad stock, trucks, buses, automobiles, and motorcycles all produ...

spiritual

(Encyclopedia)spiritual, a religious folk song of American origin, particularly associated with African-American Protestants of the southern United States. The African-American spiritual, characterized by syncopati...

horse latitudes

(Encyclopedia)horse latitudes, two belts of latitude where winds are light and the weather is hot and dry. They are located mostly over the oceans, at about 30° lat. in each hemisphere, and have a north-south rang...

hoe

(Encyclopedia)hoe, usually a flat blade, variously shaped, set in a long wooden handle and used primarily for weeding and for loosening the soil. It was the first distinctly agricultural implement. The earliest hoe...