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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…

zirconium

(Encyclopedia) zirconiumzirconiumzərkōˈnēəm [key], metallic chemical element; symbol Zr; at. no. 40; at. wt. 91.224; m.p. about 1,852℃; b.p. 4,377℃; sp. gr. 6.5 at 20℃; valence +2, +3, or +4.…

beryllium

(Encyclopedia) berylliumberylliumbərĭlˈēəm [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℃;…

sun, in astronomy

(Encyclopedia) CE5 Structure of the sun sun, intensely hot, self-luminous body of gases at the center of the solar system. Its gravitational attraction maintains the planets, comets, and other…

May 2017 Current Events: World News

Top of Page Disaster News | Science & Technology News | US News The world is a very busy place, and it's hard to stay on top of everything. Infoplease has got you covered. Here are the 15 world…

May 2009 Current Events: World News

U.S. News | Business/Science News Here are the key events in world news for the month of May 2009. First Female Poet Laureate Appointed in UK (May 1): For the first time in 341 years, a woman is…

Nagasaki

(Encyclopedia) NagasakiNagasakinägˌäsäˈkē [key], city (1990 pop. 444,599), capital of Nagasaki prefecture, W Kyushu, Japan, on Nagasaki Bay. It is one of Japan's leading ports. Shipbuilding is the…

Schawlow, Arthur Leonard

(Encyclopedia) Schawlow, Arthur LeonardSchawlow, Arthur Leonardshôˈlō [key], 1921–99, American physicist, b. Mount Vernon, N.Y., grad. Univ. of Toronto (Ph.D. 1949). Although his research focused on…