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Hassan

(Encyclopedia) HassanHassanhäsänˈ [key], d. 1894, sultan of Morocco (1873–94). He brought the weak and disorganized country firmly under his control and held in check attempts by European powers at…

Iowa, river, United States

(Encyclopedia) Iowa, river, 329 mi (529 km) long, rising in the lakes of N Iowa and flowing SE to the Mississippi River, SE Iowa; Cedar River (300 mi/483 km long) is its chief tributary. A power dam…

Elephant Butte Dam

(Encyclopedia) Elephant Butte Dam, main unit of the Rio Grande project of the U.S. Bureau of Reclamation on the Rio Grande, SW N.Mex.; completed 1916. The dam, with its large reservoir, is used for…

Boise, river, United States

(Encyclopedia) Boise, river, c.160 mi (260 km) long, rising in SW Idaho and flowing west to join the Snake River at the Oregon line. In 1811 the Boise River, originally called Reed's River, was…

Seyhan

(Encyclopedia) SeyhanSeyhansāhänˈ [key], river, c.320 mi (515 km) long, rising in the Anti-Taurus Mts., central Turkey, and flowing SW to the Mediterranean Sea. Dams provide irrigation, flood control…

motor, electric

(Encyclopedia) CE5 Motor: In the AC motor, current fed to the conducting loop of wire causes it to rotate in the magnetic field, thus turning the shaft on which the loop is mounted. In the DC…

Hungry Horse Dam

(Encyclopedia) Hungry Horse Dam, 564 ft (172 m) high and 2,115 ft (645 m) long, NW Mont. on the southern fork of the Flathead River. A major unit in the development program for the Columbia River…

Kadapa

(Encyclopedia) Kadapa, city (1991 pop. 121,422), S Andhra Pradesh state, S central India. It is a district administrative center and a market for peanuts, cotton, and melons. Paint and varnish are…

governor, device

(Encyclopedia) governor, automatic device used to regulate and control such variables as speed or pressure in the functioning of an engine or other machine. A governor may be an electric, hydraulic,…

Hay-Herrán Treaty

(Encyclopedia) Hay-Herrán TreatyHay-Herrán Treatyhā-ĕränˈ [key], 1903, aborted agreement between the United States and Colombia providing for U.S. control of the prospective Panama Canal and for U.S…