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Selected Mathematicians and Statisticians

René Descartes See also Notable Women Scientists People in the News Recent Obituaries Related Links Branches of Mathematics Development of Mathematics Factors and Fractions…

Selected Biographies: D

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z More Biographies Don't see the biography you're looking for? Search 30,000+ biographies Biographies…

State Department Notes on Nepal

U.S. Department of State Background Note Index: People History Government and Political Conditions Economy Defense Foreign Relations U.S.-Nepal Relations PEOPLEPerched on the southern slopes…

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…

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…

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…

Fungi

(Encyclopedia) FungiFungifŭnˈjī [key], kingdom of heterotrophic single-celled, multinucleated, or multicellular organisms, including yeasts, molds, and mushrooms. The organisms live as parasites,…

observatory, orbiting

(Encyclopedia) observatory, orbiting, research satellite designed to study solar radiation, electromagnetic radiation from distant stars, the earth's atmosphere, or the like. Because the atmosphere…