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pole, in electricity and magnetism

(Encyclopedia)pole, in electricity and magnetism, point where electric or magnetic force appears to be concentrated. A single electric charge located at a point is sometimes referred to as an electric monopole. An ...

public ownership

(Encyclopedia)public ownership, government ownership of lands, streets, public buildings, utilities, and other business enterprises. The theory that all land and its resources belong ultimately to the people and th...

Corea, Chick

(Encyclopedia) Corea, Chick (Armando Anthony), 1941-2021, American jazz pianist, composer, and bandleader, b. Chelsea, Ma. Corea’s father was a bandleader in Boston...

quassia

(Encyclopedia)quassia kwŏshˈə [key], name for several tropical trees and for a bitter extract from their bark. The extract containing complex terpenoid compounds called quassinoids is used medicinally as a bitte...

energy, sources of

(Encyclopedia)energy, sources of, origins of the power used for transportation, for heat and light in dwelling and working areas, and for the manufacture of goods of all kinds, among other applications. The develop...

Melville Bay

(Encyclopedia)Melville Bay, broad indentation of the western coast of Greenland, opening to the SW into Baffin Bay. The inland ice cap comes down to the coast, and glaciers discharge much ice into its waters. ...

Coffin, Charles Albert

(Encyclopedia)Coffin, Charles Albert, 1844–1926, American businessman, b. Fairfield, Maine. After working in his uncle's shoe business in Lynn, Mass., he established his own shoe factory, Coffin and Clough. In 18...

magnetism

(Encyclopedia)CE5 Lines of induction around a single bar magnet and between opposite poles of different magnets magnetism, force of attraction or repulsion between various substances, especially those made of i...

Hancock, Herbie

(Encyclopedia) Hancock, Herbie (Herbert Jeffrey Hancock), 1940- , American jazz pianist, composer, and bandleader, b. Chicago, Il., Grinnell College (B.S.E., 1960, H...

rheostat

(Encyclopedia)rheostat rēˈəstătˌ [key], device whose resistance to electric current depends on the position of some mechanical element or control in the device. Typically a rheostat consists of a resistance el...