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Xi'an

(Encyclopedia)Xi'an shēˈänˈ, sēˈ– [key], city (1994 est. pop. 2,114,900), capital of Shaanxi prov., China, in the Wei River valley. Situated on the Longhai RR, China's principal east-west line, it is an imp...

electrolysis

(Encyclopedia)CE5 Electrolysis: In a typical reaction electrodes are placed in a solution of hydrogen chloride, HCl, which contains both hydrogen and chlorine ions. The battery removes electrons from the anode, ...

Fleming, Sir John Ambrose

(Encyclopedia)Fleming, Sir John Ambrose, 1849–1945, English electrical engineer. He was a leader in the development of electric lighting, the telephone, and wireless telegraphy in England and the inventor of a th...

machine

(Encyclopedia)machine, arrangement of moving and stationary mechanical parts used to perform some useful work or to provide transportation. From a historical perspective, many of the first machines were the result ...

Gramme, Zénobe-Théophile

(Encyclopedia)Gramme, Zénobe-Théophile zānôbˈ tāôfēlˈ gräm [key], 1826–1901, Belgian electrical engineer. While working as a model maker for a Parisian manufacturer of electrical devices, Gramme became ...

Sharonville

(Encyclopedia)Sharonville, city (1990 pop. 13,153), Hamilton co., SW Ohio, a residential suburb of Cincinnati; surveyed 1796, inc. 1911. Motor vehicle parts are manufactured. ...

Tijuana

(Encyclopedia)Tijuana tēhwäˈnä [key], city (1990 pop. 698,752), Baja California state, NW Mexico, just south of the U.S. border. It is a gaudy border resort, noted for its racetracks and bullfights. An irrigate...

thyristor

(Encyclopedia)thyristor, semiconductor switch used chiefly in power-control applications. Also called a silicon-controlled rectifier (SCR; see rectifier), it is a variation of the transistor. A thyristor is capable...

Bell Gardens

(Encyclopedia)Bell Gardens, city (2020 pop. 39,501), Los Angeles co., S Calif., a suburb of Los Angeles; inc. 1961. Manufactures include tools, motor vehicle parts, a...

Lemon Grove

(Encyclopedia)Lemon Grove, uninc. town (1990 pop. 23,984), San Diego co., S Calif. Primarily residential, there is also agriculture and the manufacture of wire products, motor vehicle parts, and bricks. ...