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Byrd, Richard Evelyn
(Encyclopedia)Byrd, Richard Evelyn, 1888–1957, American aviator and polar explorer, b. Winchester, Va. He took up aviation in 1917, and after World War I he gained great fame in the air. He commanded the naval ai...perch
(Encyclopedia)perch, common name for some members of the family Percidae, symmetrical freshwater fishes of N Europe, Asia, and North America. The perches belong to the large order Perciformes (spiny-finned fishes) ...Polaris
(Encyclopedia)Polaris pōlârˈĭs [key] or North Star, star nearest the north celestial pole (see equatorial coordinate system). It is in the constellation Ursa Minor (see Ursa Major and Ursa Minor; Bayer designat...slate
(Encyclopedia)slate, fine-grained rock formed when sedimentary rocks such as shale are metamorphosed by great pressure. Slate splits into perfectly cleaved, broad thin layers; this characteristically regular and pl...Jim Crow laws
(Encyclopedia)Jim Crow laws, in U.S. history, statutes enacted by Southern states and municipalities, beginning in the 1880s, that legalized segregation between blacks and whites. The name is believed to be derived...Theodore Roosevelt National Park
(Encyclopedia)Theodore Roosevelt National Park, 70,447 acres (28,531 hectares), W N.Dak., in the Badlands and on the Little Missouri River; est. 1947. There are three units—the North Unit, the Elkhorn Ranch Unit,...Wuxi
(Encyclopedia)Wuxi or Wusih both: wo͞o-shē [key], city (1994 est. pop. 863,100), S Jiangsu prov., China, on the Grand Canal and the north bank of Tai lake. It is a silk-producing center. Foods (especially grains)...North West Company
(Encyclopedia)North West Company, fur-trading organization in North America in the late 18th and early 19th cent.; it was composed of Montreal trading firms and fur traders. After 1810 the rivalry between the Nor...cockle
(Encyclopedia)cockle, common name applied to the heart-shaped, jumping or leaping marine bivalve mollusks, belonging to the order Eulamellibranchia. The brittle shells are of uniform size, are obliquely spherical, ...conglomerate, in geology
(Encyclopedia)conglomerate, in geology, sedimentary rock composed largely of pebbles or other rounded particles whose diameter is larger than 2 mm (.08 in.). Essentially a cemented gravel, conglomerates are formed ...Browse by Subject
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