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Kamen, Martin David

(Encyclopedia)Kamen, Martin David kāˈmən [key], 1913–2002, American biochemist, b. Toronto, Canada, grad. Univ. of Chicago (B.S., Ph.D. 1937). He discovered carbon-14, the radioactive isotope of carbon used to...

Wilkins, Maurice Hugh Frederick

(Encyclopedia)Wilkins, Maurice Hugh Frederick, 1916–2004, British biophysicist, b. New Zealand, Ph.D. Univ. of Birmingham, 1940. He conducted research at the Univ. of St. Andrews, Scotland, and at Kings College, ...

Rusk, Dean

(Encyclopedia)Rusk, Dean (David Dean Rusk), 1909–94, U.S. secretary of state (1961–69), b. Cherokee co., Ga. After teaching (1934–40) and serving in World War II, he entered (1946) the Dept. of State. In 1950...

Tuamotu Archipelago

(Encyclopedia)Tuamotu Archipelago to͞oämōˈto͞o [key] or Low Archipelago, coral island group (2002 pop. 14,876), South Pacific, part of French Polynesia. They comprise c.80 atolls in a 1,300-mi (2,092-km) chain...

Salam, Abdus

(Encyclopedia)Salam, Abdus, 1926–96, Pakistani physicist. After attending Government College at Lahore, he received a Ph.D. from Cambridge (1952). He taught in Lahore for three years before returning to England, ...

Sarcodina

(Encyclopedia)Sarcodina, the largest phylum (11,500 living species and 33,000 fossil species) of protozoans). It comprises the amebas and related organisms; which are all solitary cells that move and capture food b...

navy

(Encyclopedia)navy, originally, all ships of a nation, whether for war or commerce; the term navy now designates only such vessels as are built and maintained specifically for war. There have been three major devel...

Kennan, George Frost

(Encyclopedia)Kennan, George Frost, 1904–2005, U.S. diplomat and historian, b. Milwaukee, Wis., grad. Princeton, 1925. A brilliant strategist and among the most influential and intellectual Americans in the 20th-...

Kim Il Sung

(Encyclopedia)Kim Il Sung kĭm jông ĭl [key], 1941?–2011, was groomed as his successor. Active in the Korean Workers' party leadership from 1964, Kim Jong Il became secretary of its central committee in 1973. I...

beryllium

(Encyclopedia)beryllium bərĭlˈēəm [key] [from beryl ], metallic chemical element; symbol Be; at. no. 4; at. wt. 9.01218; m.p. about 1,278℃; b.p. 2,970℃ (estimated); sp. gr. 1.85 at 20℃; valence +2. Ber...