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laissez-faire

(Encyclopedia) laissez-fairelaissez-fairelĕsˌā fârˈ [key] [Fr.,=leave alone], in economics and politics, doctrine that an economic system functions best when there is no interference by government.…

variable star

(Encyclopedia) variable star, star that varies, either periodically or irregularly, in the intensity of the light it emits. Other physical changes are usually correlated with the fluctuations in…

comet

(Encyclopedia) CE5 Comet: Whatever the direction of a comet's flight, its “tail” always points away from the sun. The tail disappears when the comet is far from the sun. comet [Gr.,=longhaired],…

The Declaration of Independence

On April 12, 1776, the legislature of North Carolina authorized its delegates to the Continental Congress to join with others in a declaration of separation from Great Britain; the first colony to…

tariff

(Encyclopedia) tariff, tax on imported and, more rarely, exported goods. It is also called a customs duty. Tariffs may be distinguished from other taxes in that their predominant purpose is not…

X-ray astronomy

(Encyclopedia) X-ray astronomy, study of celestial objects by means of the X rays they emit, in the wavelength range from 0.01 to 10 nanometers. X-ray astronomy dates to 1949 with the discovery that…

DK Science: Space

UNIVERSEMATTER IN THE UNIVERSEOUR PLACE IN THE UNIVERSECROWDED CITYOUR PLANETTHE SOLAR SYSTEMOUR GALAXYTHE EXPANDING UNIVERSEWHERE SPACE BEGINSUNIVERSAL FORCESFIND OUT MOREBIG BANGTIMELINE OF THE…

Twain, Mark

(Encyclopedia) Twain, Mark, pseud. of Samuel Langhorne Clemens, 1835–1910, American author, b. Florida, Mo. As humorist, narrator, and social observer, Twain is unsurpassed in American literature.…

Canadian literature, French

(Encyclopedia) Canadian literature, French, the body of literature of the French-speaking population of Canada. Except for the narratives of French explorers (such as Samuel de Champlain and Pierre…

Notable Business Biographies

Lido Anthony “Lee” Iacocca See also Women CEOs Notable Women in Busines Asian Pacific American Business and Media Leaders People in the News Recent Obituaries Related Links…