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standard time

(Encyclopedia)standard time, civil time used within a given time zone. The earth is divided into 24 time zones, each of which is about 15° of longitude wide and corresponds to one hour of time. Within a zone all c...

Butte, city, United States

(Encyclopedia)Butte byo͞ot [key], city (2020 pop. 34,494), seat of Silver Bow co., SW Mont.; inc. 1879. It...

Guelphs and Ghibellines

(Encyclopedia)Guelphs and Ghibellines gwĕlfs, gĭbˈəlēnz, –lĭnz [key], opposing political factions in Germany and in Italy during the later Middle Ages. The names were used to designate the papal (Guelph) pa...

electroencephalography

(Encyclopedia)electroencephalography əlĕkˌtrōĕnsĕfˌəlŏgˈrafē [key], science of recording and analyzing the electrical activity of the brain. Electrodes, placed on or just under the scalp, are linked to a...

particle detector

(Encyclopedia)CE5 Particle detector—Bubble chamber: A. Pressure drops as piston is raised; B. Charged particles passing through chamber ionize atoms in liquid; C. Bubbles form around atoms and form visible tra...

Jharkhand

(Encyclopedia)Jharkhand, state (2001 provisional pop. 26,909,428), 30,775 sq mi (79,714 sq km), E central India; created in 2000 from S Bihar, which now forms its northern border. Other bordering states are Chhatti...

Lee Teng-hui

(Encyclopedia)Lee Teng-hui lēˈ dŭngˈ-hwēˈ [key], 1923–2020, Taiwanese agricultural economist and politician, president of Taiwan (1988–2000). Born in Taiwan when it was ruled by Japan, he was educated at ...

Kuchma, Leonid Danylovych

(Encyclopedia)Kuchma, Leonid Danylovych lĭŭnyētˈ dənyēˈləvĭch ko͝ochˈmä [key], 1938–, Ukrainian politician, president of Ukraine (1994–2005). Formerly the manager of the Soviet Union's largest missi...

Micheaux, Oscar Devereaux

(Encyclopedia)Micheaux, Oscar Devereaux, 1884–1951, American filmmaker and author, b. Metropolis, Ill. The son of former slaves, Micheaux first worked as a Pullman porter, then was a homesteader in South Dakota. ...

Mellon, Paul

(Encyclopedia)Mellon, Paul, 1907–99, American philanthropist and art collector, b. Pittsburgh. The son of Andrew W. Mellon, he attended Yale (B.A., 1929) and Clare College, Cambridge (A.B., 1931). He worked brief...