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Semipalatinsk Test Site

(Encyclopedia)Semipalatinsk Test Site, Soviet nuclear testing site, c.6,950 sq mi (18,000 sq km), NE Kazakhstan, near the city of Kurchatov and some 90 mi (150 km) W of Semey (formerly Semipalatinsk). Between 1949 ...

Saigo, Takamori

(Encyclopedia)Saigo, Takamori täkäˈmōrē sīˈgō [key], 1828–77, Japanese soldier and statesman noted for his obstinate conservatism. He was an early opponent of the Tokugawa shogunate. He was exiled (1859�...

fermium

(Encyclopedia)fermium fûrˈmēəm [key] [for Enrico Fermi], artificially produced radioactive chemical element; symbol Fm; at. no. 100; mass no. of most stable isotope 257; m.p. 1,527℃; b.p. and sp. gr. unknown;...

Limburg, province, Belgium

(Encyclopedia)Limburg lĭmˈbûrg, Du. lĭmˈbûrkh [key], Fr. Limbourg, province (1991 pop. 750,435), 930 sq mi (2,409 sq km), NE Belgium, bordering on the Netherlands in the north. The chief cities are Hasselt (t...

lawrencium

(Encyclopedia)lawrencium, artificially produced radioactive chemical element; symbol Lr; at. no. 103; mass number of most stable isotope 262; m.p. about 1,627℃; b.p. and sp. gr. unknown; valence +3. Lawrencium is...

Brownian movement

(Encyclopedia)Brownian movement or motion, zigzag, irregular motion exhibited by minute particles of matter when suspended in a fluid. The effect has been observed in all types of colloidal suspensions (see colloid...

Williamsburg

(Encyclopedia)Williamsburg, historic city (1990 pop. 11,530), seat of James City co., SE Va., on a peninsula between the James and York rivers; settled 1632 as Middle Plantation, laid out and renamed 1699, inc. 172...

Compton-Burnett, Dame Ivy

(Encyclopedia)Compton-Burnett, Dame Ivy kŏmˈtən-bûrˈnət [key], 1892–1969, English novelist. Educated at the Univ. of London, she lived quietly in London for most of her life. She was named a Dame Commander ...

Cumberland, William Augustus, duke of

(Encyclopedia)Cumberland, William Augustus, duke of, 1721–65, British general; third son of George II. Entering the army shortly before the outbreak (1740) of the War of the Austrian Succession, he was defeated b...

Abdul-Mahdi, Adel

(Encyclopedia)Abdul-Mahdi, Adel, 1942–, Iraqi political leader. Born into a prominent Shiite family, he joined the Ba'ath party in the early 1960s, then left the party and went into self-exile in France in 1969. ...