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Blues and Greens

(Encyclopedia)Blues and Greens, political factions in the Byzantine Empire in the 6th cent. They took their names from two of the four colors worn by the circus charioteers. Their clashes were intensified by religi...

Urim and Thummim

(Encyclopedia)Urim and Thummim yo͞oˈrĭm, thŭmˈĭm [key], in the Bible, name of sacred instruments used for casting lots. The meaning of the two names is uncertain, as is the nature of the lots. They were in so...

Weber and Fields

(Encyclopedia)Weber and Fields wĕbˈər [key], American comedy team. The partners were Joe Weber (Joseph Maurice Weber), 1867–1942, and Lew Fields (Lewis Maurice Schanfield), 1867–1941, both born in New York C...

weights and measures

(Encyclopedia)CE5 weights and measures, units and standards for expressing the amount of some quantity, such as length, capacity, or weight; the science of measurement standards and methods is known as metrology...

Europa, in astronomy

(Encyclopedia)Europa yo͝orōˈpə [key], in astronomy, one of the 39 known moons, or natural satellites, of Jupiter. Magnetic-field data collected by the space probe Galileo in 2002 strongly indicated a liquid-wat...

dimension, in mathematics

(Encyclopedia)dimension, in mathematics, number of parameters or coordinates required locally to describe points in a mathematical object (usually geometric in character). For example, the space we inhabit is three...

Barrientos Ortuño, René

(Encyclopedia)Barrientos Ortuño, René rānāˈ bär-ryānˈtōs ōrto͞oˈnyō [key], 1919–69, Bolivian political leader. Commander of the Bolivian air force, he supported the National Revolutionary Movement (M...

Stephen, Saint, duke and king of Hungary

(Encyclopedia)Stephen, Saint, or Stephen I, 975–1038, duke (997–1001) and first king (1001–38) of Hungary, called the Apostle of Hungary. The Hungarian state may be said to date from his reign. Because he con...

Strategic Defense Initiative

(Encyclopedia)Strategic Defense Initiative (SDI), former U.S. government program responsible for research and development of a space-based system to defend the nation from attack by strategic ballistic missiles (se...

Vandenberg Air Force Base

(Encyclopedia)Vandenberg Air Force Base, U.S. military installation, 3,456 acres (1,399 hectares), SW Calif., near Lompoc; chief Pacific coast launch site for military satellites, and headquarters of the U.S. Space...