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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...Gary
(Encyclopedia)Gary, city (2020 pop. 69,093), Lake co., NW Ind., a port of entry on Lake Michigan; inc. 1909. Gary was founded by the U.S. Steel Corporation, which pur...Harrison, Wallace Kirkman
(Encyclopedia)Harrison, Wallace Kirkman, 1895–1981, American architect and city planner, b. Worcester, Mass. Harrison designed the Trylon and Perisphere, the structures that came to symbolize the 1939 New York Wo...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...rubber
(Encyclopedia) CE5 Basic molecules in rubber rubber, any solid substance that upon vulcanization becomes elastic; the term includes natural rubber (caoutchouc) and synthetic rubber. The term elastomer is sometim...silver chloride
(Encyclopedia)silver chloride, chemical compound, AgCl, a white cubic crystalline solid. It is nearly insoluble in water but is soluble in a water solution of ammonia, potassium cyanide, or sodium thiosulfate (“h...Polke, Sigmar
(Encyclopedia)Polke, Sigmar, 1941–2011, innovative German artist best known for his paintings and photography. His family immigrated from East to West Germany in 1953, and he lived in Düsseldorf, studying (1961...saturated fat
(Encyclopedia)saturated fat, any solid fat that is an ester of glycerol and a saturated fatty acid. The molecules of a saturated fat have only single bonds between carbon atoms; if double bonds are present in the f...pineal gland
(Encyclopedia)pineal gland pĭnˈeəl [key], small organ (about the size of a pea) situated in the brain. Long considered vestigial in humans, the structure, which is also called the pineal body or the epiphysis, i...bean weevil
(Encyclopedia)bean weevil, common name for a well-known cosmopolitan species of beetle (Acanthoscelides obtectus) that attacks beans and is thought to be native to the United States. It belongs to the family Bruchi...Browse by Subject
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