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ethics

(Encyclopedia)ethics, in philosophy, the study and evaluation of human conduct in the light of moral principles. Moral principles may be viewed either as the standard of conduct that individuals have constructed fo...

Beethoven, Ludwig van

(Encyclopedia)Beethoven, Ludwig van lŭdˈwĭg văn bāˈtōvən, Ger. lo͝otˈvĭkh fän bātˈhōfən [key], 1770–1827, German composer. He is universally recognized as one of the greatest composers of the West...

Salem, cities, United States

(Encyclopedia)Salem. 1 City (1990 pop. 38,091), seat of Essex co., NE Mass., on an inlet of Massachusetts Bay; inc. 1629. Its once famous harbor has silted up. Salem has electronic, leather, and machinery industrie...

Marlowe, Christopher

(Encyclopedia)Marlowe, Christopher, 1564–93, English dramatist and poet, b. Canterbury. Probably the greatest English dramatist before Shakespeare, Marlowe, a shoemaker's son, was educated at Cambridge and he wen...

Titanic

(Encyclopedia)Titanic tītănˈĭk [key], British liner that sank on the night of Apr. 14–15, 1912, less than three hours after crashing into an iceberg in the N Atlantic S of Newfoundland. More than 1,500 lives ...

Shostakovich, Dmitri

(Encyclopedia)Shostakovich, Dmitri dyĭmēˈtrē shŏstŏkôˈvĭch [key], 1906–75, Russian composer, b. St. Petersburg. Shostakovich studied at the Leningrad Conservatory (1919–25). The early success of his Fi...

Chamberlain, Neville

(Encyclopedia)Chamberlain, Neville (Arthur Neville Chamberlain), 1869–1940, British statesman; son of Joseph Chamberlain and half-brother of Sir Austen Chamberlain. The first half of his career was spent in busin...

gear

(Encyclopedia)CE5 Types of gears gear, toothed wheel, cylinder, or cone that transmits motion from one part of a machine to another; it is one of the oldest means of transmitting motion. When the teeth of two g...

uncertainty principle

(Encyclopedia)uncertainty principle, physical principle, enunciated by Werner Heisenberg in 1927, that places an absolute, theoretical limit on the combined accuracy of certain pairs of simultaneous, related measur...

Hoffa, Jimmy

(Encyclopedia)Hoffa, Jimmy (James Riddle Hoffa) hôfˈə [key], 1913–75?, U.S. labor leader, b. Brazil, Indiana. As a young warehouseman he organized (1932) a union that was admitted two years later into the Team...