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Cavendish, Thomas

(Encyclopedia)Cavendish, Thomas, 1560–92, English navigator. He commanded a ship in the flotilla under Sir Richard Grenville sent (1585) by Sir Walter Raleigh to establish the first colony in Virginia. In 1586, i...

Bonvalot, Pierre Gabriel Édouard

(Encyclopedia)Bonvalot, Pierre Gabriel Édouard pyĕr gäbrēĕlˈ ādwärˈ bôNvälōˈ [key], 1853–1933, French explorer and author. In 1880–82 he visited central Asia, explored Kohistan, and returned to Fra...

Artaxerxes III

(Encyclopedia)Artaxerxes III, d. 338 b.c., king of ancient Persia (358–338 b.c.), son and successor of Artaxerxes II. He was originally named Ochus and is sometimes called Artaxerxes Ochus. He gained the throne b...

Lawrence, James

(Encyclopedia)Lawrence, James, 1781–1813, American naval hero, b. Burlington, N.J. He entered the navy in 1798 and saw his first important service in the Tripolitan War. In the War of 1812, as commander of the Ho...

Kook, Abraham Isaac

(Encyclopedia)Kook, Abraham Isaac ko͞ok [key], 1864–1935, Jewish scholar and philosopher, b. Latvia. He settled (1904) in Palestine, where he became the chief rabbi of the Ashkenazi community in 1921. He attempt...

Barentz, Willem

(Encyclopedia)Barentz or Barents, Willem both: vĭˈləm bäˈrənts [key], d. 1597, Dutch navigator. He made three voyages (1594, 1595, 1596–97) in search of the Northeast Passage to Asia. He reached Novaya Zeml...

Tewodros II

(Encyclopedia)Tewodros II or Theodore II, 1818–68, emperor of Ethiopia (1855–68), originally named Kasa or Lij Kasa. He was a commoner and a bold and clever warrior. He seized control of his native province, Ka...

torsion balance

(Encyclopedia)torsion balance, instrument used to measure small forces. It is based on the principle that a wire or thread resists twisting with a force that is proportional to the stress. The torsion balance consi...

Rockville

(Encyclopedia)Rockville, city (1990 pop. 44,835), seat of Montgomery co., W central Md., a NW suburb of Washington, D.C.; settled c.1760s, inc. as a city 1860. It has several scientific research and technology labo...

Barth, Heinrich

(Encyclopedia)Barth, Heinrich hīnˈrĭkh bärt [key], 1821–65, German explorer in British service. After traveling (1845–47) through the Levant and N Africa, he entered the service of the British government. H...