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Clarke, Samuel

(Encyclopedia)Clarke, Samuel, 1675–1729, English philosopher and divine. His chief interest was rational theology, and, although a critic of the deists, he was in sympathy with some of their ideas. He supported t...

Boscovich, Ruggiero Giuseppe

(Encyclopedia)Boscovich, Ruggiero Giuseppe ro͞od-jāˈrō jo͞ozĕpˈpā bôsˈkōvēch [key], 1711–87, Italian mathematician, astronomer, and physicist. He became a Jesuit and taught at Rome, Pavia, and Milan. ...

Royal Society

(Encyclopedia)Royal Society, oldest scientific organization in Great Britain and one of the oldest in Europe. It was founded in 1660 by a group of learned men in London who met to promote scientific discussion, par...

Halley, Edmond

(Encyclopedia)Halley, Edmond hălˈē, hôˈlē [key], 1656–1742, English astronomer and mathematician. He is particularly noted as the first astronomer to predict the return of a comet and the first to point out...

centripetal force and centrifugal force

(Encyclopedia)CE5 Centripetal and centrifugal forces: When a ball is swung in a circle at the end of a string, centripetal and centrifugal forces act as shown above. centripetal force and centrifugal force, act...

Harmon, Judson

(Encyclopedia)Harmon, Judson, 1846–1927, U.S. Attorney General and governor of Ohio, b. Newton, Ohio. He was a lawyer and a judge in Cincinnati for many years and served (1895–97) ably as U.S. Attorney General ...

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...

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 ...

mechanics

(Encyclopedia)mechanics, branch of physics concerned with motion and the forces that tend to cause it; it includes study of the mechanical properties of matter, such as density, elasticity, and viscosity. Mechanics...