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Wrangell Mountains

(Encyclopedia)Wrangell Mountains, S Alaska, extending c.100 mi (160 km) SE from the Copper River to the Canadian border, where they meet the St. Elias Mts. Mt. Blackburn (16,523 ft/5,036 m) is the highest peak. The...

Hubble Space Telescope

(Encyclopedia)Hubble Space Telescope (HST), the first large optical orbiting observatory. Built from 1978 to 1990 at a cost of $1.5 billion, the HST (named for astronomer E. P. Hubble) was expected to provide the c...

Porter, Cole

(Encyclopedia)Porter, Cole, 1891–1964, American composer and lyricist, b. Peru, Ind., grad. Yale, 1913. Porter's witty, sophisticated lyrics and his affecting melodies place him high in the ranks of American comp...

Judson Dance Theater

(Encyclopedia)Judson Dance Theater, a loose collective of dancers, musicians, and visual artists that produced an influential series of avant-garde performance pieces at Judson Memorial Church in New York City's Gr...

Wilkinson, Jemima

(Encyclopedia)Wilkinson, Jemima, 1752–1819, American religious leader, b. Cumberland, R.I. As a girl she was powerfully impressed by the sermons of George Whitefield and also aspired to emulate the example of Ann...

Rodgers, John, 1812–82, American naval officer

(Encyclopedia)Rodgers, John, 1812–82, American naval officer, b. Harford co., Md.; son of John Rodgers. He became (1828) a midshipman and saw varied service. He conducted (1852–56) exploring expeditions in the ...

De la Rue, Warren

(Encyclopedia)De la Rue, Warren dĕlˈəro͞o, dĕləro͞oˈ [key], 1815–89, British scientist and inventor. Especially noted as an astronomer, he was a pioneer in celestial photography. He adapted the wet-plate ...

Abbot, Charles Greeley

(Encyclopedia)Abbot, Charles Greeley, 1872–1973, American astrophysicist, b. Wilton, N.H. He was acting director in 1896 and director in 1907 of the astrophysical observatory of the Smithsonian Institution; he wa...

ultraviolet astronomy

(Encyclopedia)ultraviolet astronomy, study of celestial objects by means of the ultraviolet radiation they emit, in the wavelength range from about 90 to about 350 nanometers. Ultraviolet (UV) line spectrum measure...

Sandhurst

(Encyclopedia)Sandhurst, village, Bracknell Forest, S central England. It is the site of the British army officer-training school, the Royal Military Academy Sandhurst. The original Sandhurst school, the Royal Mili...