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population I and II

(Encyclopedia)population I and II, in astronomy: see stellar populations. ...

Aholah and Aholibah

(Encyclopedia)Aholah əhōˈlə [key], in the Bible, the sisters in an allegory on Israel's idolatry. ...

ratchet and pawl

(Encyclopedia)ratchet and pawl, mechanical device that permits motion in one direction only. The ratchet is usually a wheel with slanting teeth. The pawl is a lever tangential to the wheel with one end resting on t...

Douglas, William, 1st earl of Douglas and Mar

(Encyclopedia)Douglas, William, 1st earl of Douglas and Mar, 1327?–1384, Scottish nobleman; nephew of Sir James de Douglas, lord of Douglas. About 1348 he returned to Scotland from France and recaptured the Dougl...

Cooper Union for the Advancement of Science and Art

(Encyclopedia)Cooper Union for the Advancement of Science and Art, accredited institution of higher education; in New York City; coeducational; chartered and opened in 1859. Founded by Peter Cooper, it pioneered in...

Maximilian I, 1573–1651, elector and duke of Bavaria

(Encyclopedia)Maximilian I, 1573–1651, elector (1623–51) and duke (1597–1651) of Bavaria, one of the outstanding figures of the Thirty Years War and an ardent supporter of the Counter Reformation. His occupat...

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