Columbia Encyclopedia

(Encyclopedia) Chattanooga campaign, Aug.-Nov., 1863, military encounter in the American Civil War. Chattanooga, Tenn., which commanded Confederate communications between the East and the Mississippi River and was a...

(Encyclopedia) Macdonald-Wright, Stanton, 1890–1973, American artist, b. Charlottsville, Va. Macdonald-Wright was among the first Americans to paint in a totally abstract mode. Together with Morgan Russell, he fou...

(Encyclopedia) Nevin, Ethelbert Woodbridge, 1862–1901, American pianist and composer, b. Edgeworth, Pa., studied in Boston and in Germany. He made his debut as a pianist in Pittsburgh in 1886 but devoted most of h...

(Encyclopedia) paradise fish, brilliantly colored freshwater Asian fish, Macropodus opercularis, often kept in aquariums. The males reach a length of 3 in. (7.6 cm) and turn reddish with blue bars during mating seas...

(Encyclopedia) spinel, magnesium aluminum oxide, MgAl2O4, a mineral crystallizing in the isometric system, usually as octahedrons. It occurs as an accessory mineral in basic igneous rocks, in aluminum-rich metamorph...

(Encyclopedia) cobalt, metallic chemical element; symbol Co; at. no. 27; at. wt. 58.9332; m.p. 1,495℃; b.p. about 2,870℃; sp. gr. 8.9 at 20℃; valence +2 or +3. Cobalt is a silver-white, lustrous, hard, brittle...

(Encyclopedia) quantum chromodynamics (QCD), quantum field theory that describes the properties of the strong interactions between quarks and between protons and neutrons in the framework of quantum theory. Quarks p...

(Encyclopedia) Isle Royale National Park roiˈəl [key], 571,790 acres (231,575 hectares), comprising about 200 islands, in Lake Superior, NW Mich.; est. 1940. Isle Royale, 210 sq mi (544 sq km), is the largest isla...

(Encyclopedia) East Sussex, county, 693 sq mi (1,795 sq km), extreme SE England. It comprises five administrative districts: Eastbourne, Hastings, Lewes, Rother, and W...

(Encyclopedia) Chertoff, Michael, 1953–, U.S. government official, b. Elizabeth, N.J., grad. Harvard (B.A., 1975, J.D., 1978). A lawyer, Chertoff was an assistant federal prosecutor in New York (1983–87) and New...