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mansard roof

(Encyclopedia)CE5 Mansard roof mansard roof mănˈsärd [key], type of roof, so named because it was frequently used by the French architect François Mansart. It was not devised by him but was used early in th...

petrochemical

(Encyclopedia)petrochemical, any one of a large group of chemicals derived from a component of petroleum or natural gas. The cracking processes for manufacturing gasoline produce vast quantities of gaseous hydrocar...

Hillingdon

(Encyclopedia)Hillingdon, outer borough of Greater London, SE England. Industries include printing, motion-picture production, and the manufacture of aircraft, food p...

Seven Days battles

(Encyclopedia)Seven Days battles, in the American Civil War, the week-long Confederate counter-offensive (June 26–July 2, 1862) near Richmond, Va., that ended the Peninsular campaign. After the battle of Fair Oak...

Oxnard

(Encyclopedia)Oxnard ŏkˈsnärd [key], city (1990 pop. 142,216), Ventura co., S Calif., on the Pacific coast; inc. 1903. Its economy, formerly based on agriculture, mining, and nearby military bases, has expanded ...

streamline

(Encyclopedia)streamline, path of a fluid flowing steadily and without appreciable turbulence. A body is said to be streamlined if its shape offers the least possible resistance to a current of air, water, or other...

Richthofen, Manfred, Baron von

(Encyclopedia)Richthofen, Manfred, Baron von mänˈfrāt [key], 1892–1918, German aviator in World War I. He was credited with the spectacular achievement of shooting down 80 aircraft; he was killed in action on ...

Newport, city, Wales

(Encyclopedia)Newport, Welsh Casnewydd, city and unitary authority (1991 pop. 129,900), 74 sq mi (191 sq km), SE Wales, on the Usk River. Lumber, tea, automobiles, electronics, semiconductors, and aircraft are made...

Wallops Island

(Encyclopedia)Wallops Island wälˈləps [key], island, 6 sq mi (15.5 sq km), Accomack co., E Va., off the Atlantic coast of the Delmarva pensinsula S of Chincoteaque island. NASA has a facility there and on the ne...

space shuttle

(Encyclopedia)space shuttle, reusable U.S. space vehicle (1981–2011). Developed by the National Aeronautics and Space Administration (NASA) and officially known as the Space Transportation System (STS), it was th...