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Cuban Missile Crisis

(Encyclopedia)Cuban Missile Crisis, 1962, major cold war confrontation between the United States and the Soviet Union. In response to the Bay of Pigs Invasion and other American actions against Cuba as well as to P...

French Polynesia

(Encyclopedia)French Polynesia, officially Overseas Lands of French Polynesia, internally self-governing dependency (2015 est. pop. 278,000) of France, consisting of 118 islands in the South Pacific. The capital is...

Palau

(Encyclopedia)Palau pälouˈ [key], officially Republic of Palau, independent nation (2015 est. pop. 21,000), c.192 sq mi (497 sq km), W Pacific, in the W Caroline Islands. Belau, the indigenous name for Palau, is ...

nucleus, in physics

(Encyclopedia)nucleus, in physics, the extremely dense central core of an atom. Following the discovery of radioactivity by A. H. Becquerel in 1896, Ernest Rutherford identified two types of radiation given off b...

obsidian

(Encyclopedia)obsidian ŏbsĭdˈēən [key], a volcanic glass, homogeneous in texture and having a low water content, with a vitreous luster and a conchoidal fracture. The color is commonly black, but may be some s...

Kashiwazaki

(Encyclopedia)Kashiwazaki käshēwäˈzäkē [key], city (1990 pop. 88,309), Niigata prefecture, central Honshu, Japan, on the Japan Sea. A resort town known for its hot springs, Kashiwazaki produces petrochemicals...

Dubna

(Encyclopedia)Dubna do͞obnŭˈ [key], town (1989 pop. 66,000), Moscow region, central European Russia, near the confluence of the Volga and Dubna rivers. Founded in 1956, it is the seat of the Joint Institute for ...

Rosa, Monte

(Encyclopedia)Rosa, Monte mōnˈtā rôˈzä [key], massif, in the Pennine Alps, on the Swiss-Italian border. Its highest peak, the Dufourspitze, 15,217 ft (4,638 m), is the highest point in Switzerland. The Swiss ...

Gamow, George

(Encyclopedia)Gamow, George gămˈŏf [key], 1904–68, Russian-American theoretical physicist and author, b. Odessa. A nuclear physicist, Gamow is better known to the public for his excellent books popularizing ab...

détente

(Encyclopedia)détente, relaxation of tensions between nations, applied particularly to a period of improved relations between the United States and Soviet Union in the 1960s and 70s that resulted as the hostilitie...