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cathode

(Encyclopedia)cathode, electrode through which current leaves an electric device. In electrolysis, it is the negative electrode in the electrolytic cell. ...

Coleman, Ornette

(Encyclopedia)Coleman, Ornette, 1930–2015, African-American saxophonist and composer, b. Fort Worth, Tex. Largely self-taught, he began playing the alto saxophone in rhythm-and-blues bands. He later developed an ...

field, in physics

(Encyclopedia)field, in physics, region throughout which a force may be exerted; examples are the gravitational, electric, and magnetic fields that surround, respectively, masses, electric charges, and magnets. The...

Coolidge, William David

(Encyclopedia)Coolidge, William David, 1873–1975, American physical chemist, b. Hudson, Mass., grad. Massachusetts Institute of Technology, 1896. He joined the General Electric Company in 1905 and served as direc...

Hornell

(Encyclopedia)Hornell hôrnĕlˈ [key], city (2020 pop. 8,263), Steuben co., SW N.Y., on the Canisteo River...

Hare, Robert

(Encyclopedia)Hare, Robert, 1781–1858, American chemist, b. Philadelphia. He was professor of chemistry (1819–47) at the medical college of the Univ. of Pennsylvania. Hare made important contributions to early ...

Puteaux

(Encyclopedia)Puteaux pütōˈ [key], suburb W of Paris (1990 pop. 42,917), Hauts-de-Seine dept., N central France, on the Seine River. An important industrial center, Puteaux is the birthplace of the French automo...

charge

(Encyclopedia)charge, property of matter that gives rise to all electrical phenomena (see electricity). The basic unit of charge, usually denoted by e, is that on the proton or the electron; that on the proton is d...

electromotive force

(Encyclopedia)electromotive force, abbr. emf, difference in electric potential, or voltage, between the terminals of a source of electricity, e.g., a battery from which no current is being drawn. When current is dr...

Fujisawa

(Encyclopedia)Fujisawa fo͞ojēˈsäwä [key], city, Kanagawa prefecture, central Honshu, Japan, on Sagami Bay. It ...

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