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rudder

(Encyclopedia)rudder, mechanism for steering an airplane or a ship. In ships it is a flat-surfaced structure hinged to the stern and controlled by a helm. When the ship is on a straight course, the rudder is in lin...

Sánchez Hernández, Fidel

(Encyclopedia)Sánchez Hernández, Fidel ārnänˈdās [key], 1917–2003, president of El Salvador (1967–72). An army general, he served as minister of interior under President Julio Rivera. As president, he na...

proverb

(Encyclopedia)proverb, short statement of wisdom or advice that has passed into general use. More homely than aphorisms, proverbs generally refer to common experience and are often expressed in metaphor, alliterati...

Reinhardt, Django

(Encyclopedia)Reinhardt, Django (Jean Baptiste Reinhardt), 1910–53, Belgian jazz guitarist of Romani (Gypsy) descent. Reinhardt began playing the guitar professionally at 12. He was severely burned in a fire in 1...

Koons, Jeff

(Encyclopedia)Koons, Jeff, 1955–, American artist, b. York, Pa., studied Maryland Institute College of Art (B.F.A., 1976), Art Institute of Chicago. He moved to New York City in 1977 and has lived and worked ther...

Pali canon

(Encyclopedia)Pali canon päˈlē [key], sacred literature of Buddhism. The texts in the Pali canon are the earliest Buddhist sources, and for Theravada Buddhists, who claim to conserve the original teachings of th...

semiconductor

(Encyclopedia)CE5 N-type and P-type crystals: In a pure silicon crystal each silicon atom (Si) is surrounded by four valence electrons. In the N-doped semiconductor, illustrated in the left-hand figure, some sil...

pulley

(Encyclopedia)CE5 Pulleys: The mechanical advantage (MA) of a system of pulleys is equal to the number of supporting strands: in A MA=1 and in B MA=2. pulley, simple machine consisting of a wheel over which a r...

Constantius III

(Encyclopedia)Constantius III, d. 421, Roman emperor of the West (421). In 411, as general of Honorius, he defeated Gerontius and Constantine; thereafter he was the virtual ruler of the West. Aspiring to the hand o...

Eric XIV

(Encyclopedia)Eric XIV, 1533–77, king of Sweden (1560–68), son and successor of Gustavus I. To strengthen the power of the crown, he limited (1561) the privileges of the royal dukes. He forbade the marriage of ...