(Encyclopedia) GaronneGaronnegärônˈ [key], river, 402 mi (647 km) long, rising in the central Pyrenees just inside Spain, and flowing generally NE to Toulouse, in SW France, where it swings northwest…
(Encyclopedia) North Platte, river, c.680 mi (1,090 km) long, rising in the Park Range, N Colo., and flowing in a great bend N through SE Wyo., then east across the plains of W central Nebr. to join…
(Encyclopedia) raven, common name for the largest members of the family Corvidae (crow family), ranging throughout the arctic and temperate regions of the Northern Hemisphere. The common raven,…
(Encyclopedia) Three Gorges Dam, 607 ft (185 m) high and 7,575 ft (2,309 m) long, on the Chang (Yangtze) River, central Hubei prov., China, 30 mi (48 km) W of Yichang. The largest concrete structure…
(Encyclopedia) solenoidsolenoidsōˈlənoidˌ [key], device made of a long wire that has been wound many times into a tightly packed coil; it has the shape of a long cylinder. If current is sent through…
(Encyclopedia) Pecos, river, 926 mi (1,480 km) long, rising in N N.Mex. near the Truchas peaks and flowing SE across E N.Mex. and W Tex. to the Rio Grande; drains c.38,300 sq mi (99,200 sq km). In…
(Encyclopedia) day, period of time for the earth to rotate once on its axis. The ordinary day, or solar day, is measured relative to the sun, being the time between successive passages of the sun…
(Encyclopedia) ApatosaurusApatosaurusăpˌətəsôrˈəs, āˌpătˌə– [key], [Gr.,=deceptive lizard], quadruped saurischian dinosaur, estimated to be from 70 to 90 ft (21 to 27 m) in length and to weigh up to…
(Encyclopedia) gouramigouramig&oomacr;räˈmē [key], tropical freshwater fish of the labyrinth fish suborder. Like other members of that suborder, gouramis have a labyrinthine breathing apparatus…
(Encyclopedia) woodpecker, common name for members of the Picidae, a large family of climbing birds found in most parts of the world. Woodpeckers typically have sharp, chisellike bills for pecking…
