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Foucault, Jean Bernard Léon
(Encyclopedia)Foucault, Jean Bernard Léon zhäN bĕrnärˈ lāôNˈ fo͞okōˈ [key], 1819–68, French physicist. Known especially for his research on the speed of light, he determined its velocity in air and fou...Concord, cities, United States
(Encyclopedia)Concord kŏngˈkərd, kŏnˈkôrdˌ [key]. 1 city (2020 pop. 125,410), Contra Costa c...Universalist Church of America
(Encyclopedia)Universalist Church of America, Protestant denomination originating in the 18th cent. and represented almost entirely in the United States. Universalism is the belief that it is God's purpose to save ...Reynolds number
(Encyclopedia)Reynolds number [for Osborne Reynolds], dimensionless quantity associated with the smoothness of flow of a fluid. It is an important quantity used in aerodynamics and hydraulics. At low velocities flu...Carlsbad, cities, United States
(Encyclopedia)Carlsbad kärlzˈbăd [key]. 1 City (2020 pop. 114,746), San Diego co., S Calif., on the Paci...Atkins, Chet
(Encyclopedia)Atkins, Chet (Chester Burton Atkins), 1924–2001, American country guitarist, singer, and record company executive, b. Luttrell, Tenn. Part of a musical family, he played fiddle and guitar as a young...Cambridge, cities, United States
(Encyclopedia)Cambridge. 1 City (2020 pop. 13,096), seat of Dorchester co., E Md., Eastern Shore, a port of entry on the Choptank River at its mouth on ...viscosity
(Encyclopedia)viscosity, resistance of a fluid to flow. This resistance acts against the motion of any solid object through the fluid and also against motion of the fluid itself past stationary obstacles. Viscosity...Erie Canal
(Encyclopedia)Erie Canal, artificial waterway, c.360 mi (580 km) long; connecting New York City with the Great Lakes via the Hudson River. Locks were built to overcome the 571-ft (174-m) difference between the leve...sunspots
(Encyclopedia)sunspots, dark, usually irregularly shaped spots on the sun's surface that are actually solar magnetic storms. The spots are darker because the temperature of the spots is lower than that of the surro...Browse by Subject
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