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Tempe

(Encyclopedia)Tempe tĕmˈpē [key], city (1990 pop. 141,865), Maricopa co., S Ariz., in the Salt River valley, a suburb of Phoenix; inc. 1894. Its population has grown markedly since the 1970s with the expansion o...

Rainaldi, Carlo

(Encyclopedia)Rainaldi, Carlo kärˈlō rīnälˈdē [key], 1611–91, Italian architect of the high baroque. He followed in the steps of the great Roman masters of baroque building, Bernini, Borromini, and Cortona...

Rapid City

(Encyclopedia)Rapid City, city (1990 pop. 54,523), seat of Pennington co., SW S.Dak., on Rapid Creek, in an irrigated farm region served by the Bureau of Reclamation's Rapid Valley project; founded 1876 after the d...

Ray, John

(Encyclopedia)Ray or Wray, John, 1627–1705, English naturalist. He was extremely influential in laying the foundations of systematic biology. With his pupil Francis Willughby, he planned a complete classification...

Scottsdale

(Encyclopedia)Scottsdale, city (1990 pop. 130,069), Maricopa co., central Ariz.; settled in 1895 by Winfield Scott, inc. 1951. It is a resort and retirement center in the Phoenix metropolitan area. Manufacturing in...

Shepard, Alan Bartlett, Jr.

(Encyclopedia)Shepard, Alan Bartlett, Jr., 1923–98, American astronaut, b. East Derry, N.H., grad. Annapolis, 1944. He served on a destroyer during World War II and later had extensive experience as a test pilot....

Ségou

(Encyclopedia)Ségou or Segu both: sāgo͞oˈ [key], town (1993 est. pop. 85,000), SW Mali, a port on the Niger River. It is the administrative and commercial center for an area where cotton, rice, millet, and pean...

Sevan

(Encyclopedia)Sevan syĭvänˈ [key], lake, c.540 sq mi (1,400 sq km), NE Armenia, at an altitude of 6,280 ft (1,914 m); it is 324 ft (99 m) deep. The largest lake of the Caucasus, it is fed by some 30 streams, but...

water power

(Encyclopedia)water power, mechanical energy derived from falling or flowing water, e.g., rivers, streams, and the overflow of dams. The wooden water wheel, long utilized for driving machinery in flour mills and fa...

Eliasson, Olafur

(Encyclopedia)Eliasson, Olafur, 1967–, Danish sculptor, architect, and installation artist. His work is influenced by nature and natural phenomena. Early works involved frozen water droplets, electric fans, and s...