Columbia Encyclopedia

(Encyclopedia)  CE5 Image formed by a camera camera, lightproof box or container, usually fitted with a lens, which gathers incoming light and concentrates it so that it can be directed toward the film (in an opt...

(Encyclopedia) Nile, longest river in the world, c.4,160 mi (6,695 km) long from its remotest headstream, the Luvironza River in Burundi, central Africa, to its delta on the Mediterranean Sea, NE Egypt. The Nile flo...

(Encyclopedia)  CE5 View into the eye of a hurricane showing the structure of the surrounding cloud wall hurricane, tropical cyclone in which winds attain speeds greater than 74 mi (119 km) per hr. Wind speeds gu...

(Encyclopedia) Cretaceous period krĭtāˈshəs [key], third and last period of the Mesozoic era of geologic time (see Geologic Timescale, tablegeologic timescale, table), lasting from approximately 144 to 65 millio...

(Encyclopedia) Ireland, Irish Eire ârˈə [key] [to it are related the poetic Erin and perhaps the Latin Hibernia], island, 32,598 sq mi (84,429 sq km), second largest of the British Isles. The island is divided in...

(Encyclopedia)  CE5 Maryland mârˈələnd [key], one of the Middle Atlantic states of the United States. It is bounded by Delaware and the Atlantic Ocean (E), the District of Columbia (S), Virginia and West Virgi...

(Encyclopedia)  CE5 Colorado kŏlərădˈə, –rădˈō, –räˈdō [key], state, W central United States, one of the Rocky Mt. states. It is bordered by Wyoming (N), Nebraska (N, E), Kansas (E), Oklahoma and Ne...

(Encyclopedia)  CE5 CE5 CE5 Great Britain, officially United Kingdom of Great Britain and Northern Ireland, constitutional monarchy (2015 est. pop. 65,397,000), ...

(Encyclopedia) London, capital of Great Britain, SE England, on both sides of the Thames River. Greater London (1991 pop. 6,378,600), c.620 sq mi (1,610 sq km), consists of the Corporation of the City of London (199...

(Encyclopedia) Paris pârˈĭs, Fr. pärēˈ [key], city (1999 pop. 2,115,757; metropolitan area est. pop. 11,000,000), N central France, capital of the country, on the Seine River. It is the commercial and industri...