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Westinghouse, George

(Encyclopedia)Westinghouse, George, 1846–1914, American inventor and manufacturer, b. Central Bridge, N.Y. In the Civil War he served in the Union army and navy. Among his inventions in the railroad field were a ...

Wernigerode

(Encyclopedia)Wernigerode vĕrnēgərōˈdə [key], city (1994 pop. 36,905), Saxony-Anhalt, central Germany, at the northern foot of the Harz Mts. It is an industrial city, a tourist center, and an important road a...

electroconvulsive therapy

(Encyclopedia)electroconvulsive therapy in psychiatry, treatment of mood disorders by means of electricity; the broader term “shock therapy” also includes the use of chemical agents. The therapeutic possibiliti...

facsimile

(Encyclopedia)facsimile făksĭmˈəlē [key] or fax, in communications, system for transmitting pictures or other graphic matter by wire or radio. Facsimile is used to transmit such materials as documents, telegra...

Hull, Cordell

(Encyclopedia)Hull, Cordell kôrdĕlˈ [key], 1871–1955, American statesman, b. Overton co. (now Pickett co.), Tenn. Admitted to the bar in 1891, he sat (1893–97) in the Tennessee legislature and, after service...

Stevens, John Paul

(Encyclopedia)Stevens, John Paul, 1920–2019, associate justice of the U.S. Supreme Court (1975–2010). After receiving his law degree from Northwestern Univ. (1947), he clerked with U.S. Supreme Court Justice Wi...

lighting

(Encyclopedia)CE5 Incandescent lamp CE5 Basic fluorescent lamp lighting, light produced by artificial means to allow visibility in enclosures and at night. For stage lighting, see scene design and stage ligh...

ammonium chloride

(Encyclopedia)ammonium chloride əmōˈnēəm klôrˈīd [key], chemical compound, NH4Cl, a white or colorless, odorless, water-soluble, cubic crystalline salt with a biting taste, commonly known as sal ammoniac. I...

hotbed

(Encyclopedia)hotbed, low, glass-covered frame structure for starting tender plants. It differs from a cold frame only in that the soil is heated—either artificially as by underground electric wiring or steampipe...