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etching

(Encyclopedia)etching, the art of engraving with acid on metal; also the print taken from the metal plate so engraved. In hard-ground etching the plate, usually of copper or zinc, is given a thin coating or ground ...

Gates, Bill

(Encyclopedia)Gates, Bill (William Henry Gates 3d), 1955–, American business executive, b. Seattle, Wash. At the age of 19, Gates founded (1975) the Microsoft Corp....

Hastings, Warren

(Encyclopedia)Hastings, Warren, 1732–1818, first governor-general of British India. Employed (1750) as a clerk by the East India Company, he soon became manager of a trading post in Bengal. When Calcutta (now Kol...

Xi Jinping

(Encyclopedia)Xi Jinping shē jēnpēng [key], 1953–, Chinese political leader, b. Beijing. He is the son ...

Black Panthers

(Encyclopedia)Black Panthers, U.S. African-American militant party, founded (1966) in Oakland, Calif., by Huey P. Newton and Bobby Seale. Originally aimed at armed self-defense against the local police, the party g...

neural network

(Encyclopedia)neural network or neural computing, computer architecture modeled upon the human brain's interconnected system of neurons. Neural networks imitate the brain's ability to sort out patterns and learn fr...

Aung San Suu Kyi

(Encyclopedia)Aung San Suu Kyi ouN săn so͞o chē [key], 1945–, Burmese political leader, B.A. Oxford, 1969, Ph.D. Univ. of London, 1985. The daughter of assassinated (1947) nationalist general U Aung San, who i...

Tweed, William Marcy

(Encyclopedia)Tweed, William Marcy, 1823–78, American politician and Tammany leader, b. New York City. A bookkeeper, he became (1848) a volunteer fireman and as a result acquired influence in his ward. He was an ...

Stevens, Thaddeus

(Encyclopedia)Stevens, Thaddeus, 1792–1868, U.S. Representative from Pennsylvania (1849–53, 1859–68), b. Danville, Vt. He taught in an academy at York, Pa., studied law, and was admitted to the bar in Marylan...

Buckingham, George Villiers, 1st duke of

(Encyclopedia)Buckingham, George Villiers, 1st duke of vĭlˈyərz, bŭkˈĭng-əm [key], 1592–1628, English courtier and royal favorite. He arrived (1614) at the English court as James I was tiring of his favori...