Columbia Encyclopedia

(Encyclopedia) smoke, visible gaseous product of incomplete combustion. Smoke varies with its source, but it usually comprises hot gas and suspended particles of carbon and tarry substances, or soot. To reduce the a...

(Encyclopedia) Bering Sea, c.878,000 sq mi (2,274,020 sq km), northward extension of the Pacific Ocean between Siberia and Alaska. It is screened from the Pacific proper by the Aleutian Islands. The Bering Strait co...

(Encyclopedia) Toscanini, Arturo ärto͞oˈrō tōskänēˈnē [key], 1867–1957, Italian conductor, internationally recognized as one of the world's great conductors. He studied cello at the Parma Conservatory, fr...

(Encyclopedia) electronic game, device or computer program that provides entertainment by challenging a person's eye-hand coordination or mental abilities. Made possible by the development of the microprocessor, ele...

(Encyclopedia) Necker, Jacques zhäk nĕkĕrˈ [key], 1732–1804, French financier and statesman, b. Geneva, Switzerland. In 1750 he went to Paris and entered banking. He rose rapidly to importance, established a b...

(Encyclopedia) oratory, the art of swaying an audience by eloquent speech. In ancient Greece and Rome oratory was included under the term rhetoric, which meant the art of composing as well as delivering a speech. Or...

(Encyclopedia) Chomsky, Noam nōm chŏmˈskē [key], 1928–, educator and linguist, b. Philadelphia. Chomsky, who has taught at the Massachusetts Institute of Technology since 1955, developed a theory of transforma...

(Encyclopedia)  CE5 Examples of the development of cuneiform cuneiform kyo͞onēˈĭfôrm [key] [Lat.,=wedge-shaped], system of writing developed before the last centuries of the 4th millennium b.c. in the lower ...

(Encyclopedia) hedge fund, in finance, a largely unregulated investment device with a relatively small number of investors that aims to outperform the markets. Originating in the 1950s, the funds “hedge” by offs...

(Encyclopedia) shrimp, small marine decapod crustacean with 10 jointed legs on the thorax, well-developed swimmerets on the abdominal segments, and a body that is compressed laterally. Shrimp differ from their close...