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Malmstrom Air Force Base
(Encyclopedia) Malmstrom Air Force BaseMalmstrom Air Force Basemälmˈstrəm, mălmˈ– [key], U.S. military installation, 3,573 acres (1,446 hectares), W central Mont., E of Great Falls; est. 1942. During…Doolittle, James Harold
(Encyclopedia) Doolittle, James Harold, 1896–1993, American aviator, b. Alameda, Calif. After serving in World War I as a flier he returned to school and earned a Sc.D. from MIT. He then became noted…thunder
(Encyclopedia) thunder, sound produced along a path of a lightning flash, caused by the rapid heating and expansion of the adjacent air; lightning can heat air to temperatures as much as five times…foehn
(Encyclopedia) foehnfoehnfān, Ger. fön [key], warm, dry wind that occurs on the leeward slopes of a ridge of mountains. The term was originally applied to a wind of the Alps but is now used as a…jet propulsion
(Encyclopedia) CE5 Types of jet engines: In the propeller-driven turbine a stream of high-velocity gases provides the power to drive the turbine and turn the propeller. In the jet-driven turbine…smoke
(Encyclopedia) smoke, visible gaseous product of incomplete combustion. Smoke varies with its source, but it usually comprises hot gas and suspended particles of carbon and tarry substances, or soot…cyclone
(Encyclopedia) cyclone, atmospheric pressure distribution in which there is a low central pressure relative to the surrounding pressure. The resulting pressure gradient, combined with the Coriolis…basic oxygen process
(Encyclopedia) basic oxygen process, method of producing steel from a charge consisting mostly of pig iron. The charge is placed in a furnace similar to the one used in the Bessemer process of…Moreno Valley
(Encyclopedia) Moreno ValleyMoreno Valleymərēˈnō [key], city (1990 pop. 118,779), Riverside co., S Calif., inc. 1984. In 1990, Moreno Valley was California's fastest-growing city, with a population…Davis, Benjamin Oliver, Jr.
(Encyclopedia) Davis, Benjamin Oliver, Jr., 1912–2002, American air force general, b. Washington, D.C.; son of Benjamin Oliver Davis. After studying at Western Reserve and Chicago universities, he…Trending
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