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Sebastiano del Piombo
(Encyclopedia)Sebastiano del Piombo sābästyäˈnō dĕl pyômˈbō [key], c.1485–1547, Italian painter of the Venetian school, whose real name was Sebastiano Luciani. Although he was trained by Giovanni Bellini...Ctenophora
(Encyclopedia)CE5 Pleurobrachia, representative of the phylum Ctenophora Ctenophora tĭnŏfˈərə [key], a small phylum of exclusively marine, invertebrate animals, commonly known as comb jellies. Because they...Hall, Charles Francis
(Encyclopedia)Hall, Charles Francis, 1821–71, American arctic explorer, b. Rochester, N.H. He became interested in the many search expeditions for Sir John Franklin's party, and with Eskimo companions he explored...Ellsworth, Lincoln
(Encyclopedia)Ellsworth, Lincoln, 1880–1951, American explorer, b. Chicago, Ill. He was a surveyor and engineer in railroad building and later a prospector and mining engineer in NW Canada. He became the financia...Somerset, Edmund Beaufort, 2d duke of
(Encyclopedia)Somerset, Edmund Beaufort, 2d duke of, d. 1455, English statesman and general. He fought in France in the Hundred Years War, receiving his first command in 1431, recapturing Harfleur in 1440, and reli...mass spectrograph
(Encyclopedia)mass spectrograph, device used to separate electrically charged particles according to their masses; a form of the instrument known as a mass spectrometer is often used to measure the masses of isotop...mast
(Encyclopedia)mast, large metal or timber pole secured vertically or nearly vertically in a ship, used primarily for supporting sails and rigging. The mast is as old as sailing vessels, and the oldest sailboats dep...Ross, Sir James Clark
(Encyclopedia)Ross, Sir James Clark, 1800–1862, British polar explorer and rear admiral. In 1818 he accompanied his uncle, Sir John Ross, in search of the Northwest Passage and commanded the Erebus. He later stud...decathlon
(Encyclopedia)decathlon dĭkăthˈlŏn [key], in modern Olympic games, a contest for men held over two days and composed of 10 track-and-field events. It consists of the long jump; the high jump; the discus throw; ...tent
(Encyclopedia)tent, portable shelter of canvas, skins, felt, matting, or other material usually supported by poles and used chiefly by nomads, hunters, and campers. Tents have been used by pastoral peoples since an...Browse by Subject
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