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spinning

(Encyclopedia)spinning, the drawing out, twisting, and winding of fibers into a continuous thread or yarn. From antiquity until the Industrial Revolution, spinning was a household industry. The roughly carded fiber...

Capetians

(Encyclopedia)Capetians kəpēˈshənz [key], royal house of France that ruled continuously from 987 to 1328; it takes its name from Hugh Capet. Related branches of the family (see Valois; Bourbon) ruled France unt...

Mercury, in astronomy

(Encyclopedia)Mercury, in astronomy, nearest planet to the sun, at a mean distance of 36 million mi (58 million km); its period of revolution is 88 days. Mercury passes through phases similar to those of the moon a...

analytic geometry

(Encyclopedia)analytic geometry, branch of geometry in which points are represented with respect to a coordinate system, such as Cartesian coordinates, and in which the approach to geometric problems is primarily a...

Gauss, Carl Friedrich

(Encyclopedia)Gauss, Carl Friedrich kärl frēˈdrĭkh gous [key], born Johann Friederich Carl Gauss, 1777–1855, German mathematician, physicist, and astronomer. Gauss was educated at the Caroline College, Brunsw...

Missouri, river, United States

(Encyclopedia)Missouri, river, c.2,565 mi (4,130 km) long (including its Jefferson-Beaverhead-Red Rock headstream), the longest river of the United States and the principal tributary of the Mississippi River. The l...

science fiction

(Encyclopedia)science fiction, literary genre in which a background of science or pseudoscience is an integral part of the story. Although science fiction is a form of fantastic literature, many of the events recou...

Eisenhower, Dwight David

(Encyclopedia)Eisenhower, Dwight David īˈzənhouˌər [key], 1890–1969, American general and 34th President of the United States, b. Denison, Tex.; his nickname was “Ike.” In his farewell address as pr...

Montfort, Simon de, earl of Leicester

(Encyclopedia)Montfort, Simon de, earl of Leicester, 1208?–1265, leader of the baronial revolt against Henry III of England. By 1258 Simon was an active member of the baronial opposition that forced the king to...

Great Awakening

(Encyclopedia)Great Awakening, series of religious revivals that swept over the American colonies about the middle of the 18th cent. It resulted in doctrinal changes and influenced social and political thought. In ...