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Las Vegas

(Encyclopedia)Las Vegas läs vāˈgəs [key], city (1990 pop. 258,295), seat of Clark co., S Nev.; inc. 1911. It is the largest city in Nevada and the center of one of the fastest-growing urban areas in the United ...

Langmuir, Irving

(Encyclopedia)Langmuir, Irving lăngˈmyo͞or [key], 1881–1957, American chemist, b. Brooklyn, N.Y. Associated (1909–50) with the research laboratory of the General Electric Company, he introduced atomic-hydrog...

Hall, Charles Francis

(Encyclopedia)Hall, Charles Francis, 1821–71, American arctic explorer, b. Rochester, N.H. He became interested in the many search expeditions for Sir John Franklin's party, and with Eskimo companions he explored...

Saskatchewan, river, Canada

(Encyclopedia)Saskatchewan, river, c.340 mi (550 km) long, formed by the confluence of the North Saskatchewan (c.760 mi/1,220 km long) and the South Saskatchewan (c.550 mi/890 km long) rivers near Prince Albert, ce...

Pichegru, Charles

(Encyclopedia)Pichegru, Charles shärl pēshgrüˈ [key], 1761–1804, French general in the French Revolutionary Wars. Successful on the Rhine front (1793), he invaded (1794) the Netherlands, entered (1795) Amster...

Franz Josef Land

(Encyclopedia)Franz Josef Land frăns jōˈzəf, fränts yōˈzĕf [key], Rus. Zemlya Frantsa Iosifa, archipelago, c.6,300 sq mi (16,320 sq km), in the Arctic Ocean N of Novaya Zemlya, Russia. It consists of more t...

Thule , town, Greenland

(Encyclopedia)Thule känäkˈ [key], town (1995 pop. 627), N Greenland, on the north side of Inglefield Gulf. The name of Thule was originally attached to the main settlement for the Thule Eskimos, founded in 1910 ...

Yenisei

(Encyclopedia)Yenisei yĕnĭsāˈ, Rus. yĕnyĭsyāˈ [key], chief river of Siberia, c.2,500 mi (4,020 km) long, central Siberian Russia. It is formed at Kyzyl, Tuva Republic, by the junction of the Bolshoi Yenisei...

Peary, Robert Edwin

(Encyclopedia)Peary, Robert Edwin pērˈē [key], 1856–1920, American arctic explorer, b. Cresson, Pa. In 1881 he entered the U.S. navy as a civil engineer and for several years served in Nicaragua, where he was ...

ozone layer

(Encyclopedia)ozone layer or ozonosphere, region of the stratosphere containing relatively high concentrations of ozone, located at altitudes of 12–30 mi (19–48 km) above the earth's surface. Ozone in the ozone...
 

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