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Slade, Felix

(Encyclopedia) Slade, Felix, 1790–1868, English art collector and philanthropist. He endowed the Slade professorships of fine arts at Oxford and Cambridge universities and at University College,…

Nashville

(Encyclopedia) Nashville, city (1990 pop. 487,969), state capital, coextensive with Davidson co., central Tenn., on the Cumberland River, in a fertile farm area; inc. as a city 1806, merged with…

praseodymium

(Encyclopedia) praseodymiumpraseodymiumprāˌzēōdĭmˈēəm, –sēō– [key] [Gr., =green twin], metallic chemical element; symbol Pr; at. no. 59; at. wt. 140.90765; m.p. 931℃; b.p. 3,512℃; sp. gr. about 6.8;…

Jackson

(Encyclopedia) Jackson. 1 City (1990 pop. 37,446), seat of Jackson co., S Mich., on the Grand River; inc. 1857. It is an industrial and commercial center in a farm region. The city's chief…

Wood, Grant

(Encyclopedia) Wood, Grant, 1891–1942, American painter, b. Anamosa, Iowa, studied Art Institute of Chicago and in Paris. He experimented with an impressionist style in Paris, but in Munich in 1928…

Wilmington

(Encyclopedia) Wilmington. 1 City (1990 pop. 71,529), seat of New Castle co., NE Del., on the Delaware River and tributary streams, the Christina and the Brandywine; settled 1638, inc. as a city 1832…

Hawkesbury

(Encyclopedia) Hawkesbury, town, SE Ont., Canada, on the Ottawa River. It has lumber and paper mills and manufactures clothing, glass, and…

radioactive waste

(Encyclopedia) radioactive waste, material containing the unusable radioactive byproducts of the scientific, military, and industrial applications of nuclear energy. Since its radioactivity presents…

Kao, Sir Charles Kuen

(Encyclopedia) Kao, Sir Charles Kuen, 1933–2018, British-American physicist, b. Shanghai, China, Ph.D. Imperial College London, 1965. Kao was an engineer and researcher at Standard Telecommunications…

eyeglasses

(Encyclopedia) eyeglasses or spectacles, instrument or device for aiding and correcting defective sight. Eyeglasses usually consist of a pair of lenses mounted in a frame to hold them in position…