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stalactite and stalagmite
(Encyclopedia)stalactite stəlăgˈmīt [key], mineral forms often found in caves; sometimes collectively called dripstone. A stalactite is an icicle-shaped mass of calcite attached to the roof of a limestone caver...Siegfried and Roy
(Encyclopedia) Siegfried and Roy (Siegfried Fischbacher, 1939-2021, b. Rosenheim, Germany; and Roy Uwe Ludwig Horn, 1944-2020, b. Nordenham, Germany), noted German-A...Storm and Stress
(Encyclopedia)Storm and Stress: see Sturm und Drang. ...permutations and combinations
(Encyclopedia)permutations and combinations: see probability. ...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...Browse by Subject
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