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nuclear reactor

(Encyclopedia)CE5 Power reactor system nuclear reactor, device for producing controlled release of nuclear energy. Reactors can be used for research or for power production. A research reactor is designed to pr...

Constitution Island

(Encyclopedia)Constitution Island, in the Hudson River opposite West Point, SE N.Y.; part of the U.S. Military Academy. The ruins of Fort Constitution, built in 1775, are there. During the American Revolution, a ch...

Neuharth, Al

(Encyclopedia)Neuharth, Al (Allen Harold Neuharth), 1924–2013, American media executive, b. Eureka, S.Dak., grad. Univ. of South Dakota (1950). In 1954 he began working as a reporter for The Miami Herald, and by ...

Kuril Islands

(Encyclopedia)Kuril Islands kyo͝orˈēlz, kyo͝orēlzˈ [key], Jap. Chishima-Retto, Rus. Kurilskiye Ostrova, island chain, c.6,020 sq mi (15,590 sq km), Sakhalin region, E Russia. They stretch c.775 mi (1,250 km) ...

biogenetic law

(Encyclopedia)biogenetic law, in biology, a law stating that the earlier stages of embryos of species advanced in the evolutionary process, such as humans, resemble the embryos of ancestral species, such as fish. T...

Bernstorff, Andreas Peter

(Encyclopedia)Bernstorff, Andreas Peter ändrāˈäs pāˈtər bĕrnsˈtôrf [key], 1735–97, Danish politician; nephew of Johann Hartwig Ernst Bernstorff. Made (1773) foreign minister after Struensee's fall from ...

Transantarctic Mountains

(Encyclopedia)Transantarctic Mountains, mountain chain stretching across Antarctica from Victoria Land to Coats Land; separating the E Antarctic and W Antarctic subcontinents. Mt. Markham (14,275 ft/4,351 m high), ...

nucleic acid

(Encyclopedia)CE5 Replication of strands of DNA CE5 nucleic acid, any of a group of organic substances found in the chromosomes of living cells and viruses that play a central role in the storage and replica...

Koolau Range

(Encyclopedia)Koolau Range kōˈəlouˌ [key], mountain chain, extending northwest-southeast, E Oahu island, Hawaii; rises to 3,105 ft (946 m) in Konahuanui. It is cut by two scenic passes, Nuuanu Pali and Waimanal...

Verkhoyansk Range

(Encyclopedia)Verkhoyansk Range, mountain chain, c.600 mi (970 km) long, E Siberian Russia, in the Sakha Republic. It forms a vast arc along the Lena and Aldan rivers and rises to c.8,150 ft (2,480 m) in the south....