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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 ...

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...

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...

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; ...

D'Alembert's principle

(Encyclopedia)D'Alembert's principle dălˈəmbârzˌ [key], in mechanics, principle permitting the reduction of a problem in dynamics to one in statics. This is accomplished by introducing a fictitious force equal...

Sherman, Roger

(Encyclopedia)Sherman, Roger, 1721–93, American political leader, b. Newton, Mass. Sherman helped to draft and signed the Declaration of Independence. He was long a member (1774–81, 1783–84) of the Continenta...

Gage, Thomas, English traveler

(Encyclopedia)Gage, Thomas, d. 1656, English traveler. He went (1612) to Spain to study and became a Dominican. He lived and traveled among the Native populations of Central America from 1625 to 1637, when he retur...

Horsley, Samuel

(Encyclopedia)Horsley, Samuel hôrzˈlē [key], 1733–1806, English prelate, noted as a scientist. He became bishop of St. David's in 1788, of Rochester in 1793, and of St. Asaph in 1802. Science was the field in ...

inclined plane

(Encyclopedia)CE5 Inclined plane inclined plane, simple machine, consisting of a sloping surface, whose purpose is to reduce the force that must be applied to raise a load. To raise a body vertically a force mu...

Herschel

(Encyclopedia)Herschel hûrˈshəl [key], family of distinguished English astronomers. Sir William Herschel,Sir William Herschel, 1738–1822, born Friedrich Wilhelm Herschel, was a great pioneer in astronomy. Bor...