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Saratoga campaign

(Encyclopedia)Saratoga campaign, June–Oct., 1777, of the American Revolution. Lord George Germain and John Burgoyne were the chief authors of a plan to end the American Revolution by splitting the colonies along ...

wave, in the earth sciences

(Encyclopedia)CE5 A. Diagram of wave: Wave travels one wavelength during one period B. Diagram of wave: Phase relationships wave, in oceanography, an oscillating movement up and down, of a body of water caused ...

Managua

(Encyclopedia)Managua mänäˈgwä [key], city (1995 pop. 819,731), W Nicaragua, capital and largest city of Nicaragua, on the southern shore of Lake Managua. It is the commercial and industrial center of the count...

crane, machine

(Encyclopedia)crane, hoisting machine for lifting heavy loads and transferring them from one place to another, ordinarily over distances of not more than 200 ft (60 m). Cranes have a long reach and can lift loads t...

ionosphere

(Encyclopedia)ionosphere īŏnˈəsfēr [key], series of concentric ionized layers forming part of the upper atmosphere of the earth from around 30 to 50 mi (50 to 80 km) to 250 to 370 mi (400 to 600 km) where it m...

Guanajuato, state, Mexico

(Encyclopedia)Guanajuato gwänähwäˈtō [key], state, 11,805 sq mi (30,575 sq km), W central Mexico, on the ...

booby

(Encyclopedia)booby, common name for some members of the family Sulidae, large, streamlined sea birds. Tropical and subtropical members of the family are called boobies; those of northern waters are called gannets....

Niebuhr, Reinhold

(Encyclopedia)Niebuhr, Reinhold rīnˈhōld nēˈbo͝or [key], 1892–1971, American religious and social thinker, b. Wright City, Mo. A graduate of Yale Divinity School, he served (1915–28) as pastor of Bethel E...

Kosciusko, Thaddeus

(Encyclopedia)Kosciusko or Kosciuszko, Thaddeus kŏsˌēŭsˈkō [key], Pol. Tadeusz Andrzej Bonawentura Košciuszko, 1746–1817, Polish general. Trained in military academies in Warsaw and Paris, he offered his s...

anxiety

(Encyclopedia)anxiety, anticipatory tension or vague dread persisting in the absence of a specific threat. In contrast to fear, which is a realistic reaction to actual danger, anxiety is generally related to an unc...