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Wilson, Benjamin

(Encyclopedia)Wilson, Benjamin, 1721–88, English portrait painter and electrician who opposed Benjamin Franklin's theory of positive and negative electricity. Instead, Wilson supported Newton's gravitational-opti...

Copernican system

(Encyclopedia)Copernican system, first modern European theory of planetary motion that was heliocentric, i.e., that placed the sun motionless at the center of the solar system with all the planets, including the ea...

Melba, Dame Nellie

(Encyclopedia)Melba, Dame Nellie, 1861–1931, Australian soprano, whose name originally was Helen Porter Mitchell. After study with Mathilde Marchesi in Paris, she made her operatic debut in Brussels in 1887. Famo...

Hoccleve, Thomas

(Encyclopedia)Hoccleve or Occleve, Thomas hŏkˈlēv, ŏkˈ– [key], c.1368–c.1450, English poet, an imitator of Chaucer. He was a clerk in the office of the Privy Seal. His longest work, The Regiment of Princes...

Veblen, Thorstein

(Encyclopedia)Veblen, Thorstein thôrˈstīn vĕbˈlən [key], 1857–1929, American economist and social critic, b. Cato Township, Wis. Of Norwegian parentage, he spent his first 17 years in Norwegian-American far...

Smith, Hoke

(Encyclopedia)Smith, Hoke, 1855–1931, American political leader, b. Newton, N.C. A successful lawyer in Atlanta, he acquired the Atlanta Journal in 1887. He served (1893–96) in President Cleveland's cabinet as ...

Moivre, Abraham de

(Encyclopedia)Moivre, Abraham de äbrä-ämˈdə mwäˈvrə [key], 1667–1754, French-English mathematician. He fled to England after the revocation of the Edict of Nantes. He was called upon by the Royal Society ...

Tolman, Edward Chace

(Encyclopedia)Tolman, Edward Chace, 1886–1959, American psychologist, b. West Newton, Mass., grad. Massachusetts Institute of Technology, 1911; Ph. D. Harvard, 1915. He spent most of his academic career at the Un...

Converse, Frederick Shepherd

(Encyclopedia)Converse, Frederick Shepherd kŏnˈvûrs [key], 1871–1940, American composer, b. Newton, Mass., studied with J. K. Paine and G. W. Chadwick and in Germany with Rheinberger. His Pipe of Desire (Bosto...

motion

(Encyclopedia)motion, the change of position of one body with respect to another. The rate of change is the speed of the body. If the direction of motion is also given, then the velocity of the body is determined; ...