Columbia Encyclopedia

(Encyclopedia)  CE5 Linear accelerator (LINAC) CE5 Cyclotron: As the charged particles move faster, they spiral out to the edge of the Ds. particle accelerator, apparatus used in nuclear physics to produce bea...

(Encyclopedia) Obama, Barack (Barack Hussein Obama 2d), bəräkˈ ho͞osānˈ ōbäˈmə [key], 1961–, 44th president of the United States (2009–17), b. Honolulu, grad. Columbia (B.A. 1983), Harvard Law School ...

(Encyclopedia) air pollution, contamination of the air by noxious gases and minute particles of solid and liquid matter (particulates) in concentrations that endanger health. The major sources of air pollution are t...

(Encyclopedia) contemporary art, the art of the late 20th cent. and early 21st cent., both an outgrowth and a rejection of modern art. As the force and vigor of abstract expressionism diminished, new artistic moveme...

(Encyclopedia)  CE5 Jamaica jəmāˈkə [key], independent state within the Commonwealth (2015 est. pop. 2,872,000), 4,232 sq mi (10,962 sq km), coextensive with the island of Jamaica, West Indies, S of Cuba and W...

(Encyclopedia) Confederacy, name commonly given to the Confederate States of America (1861–65), the government established by the Southern states of the United States after their secession from the Union. (For the...

(Encyclopedia)  CE5 Rhode Island, smallest state in the United States, located in New England; bounded by Massachusetts (N and E), the Atlantic Ocean (S), and Connecticut (W). Until well into the 20th cent. ...

(Encyclopedia) scene design and stage lighting, settings and illumination designed for theatrical productions. See also drama, Western; Asian drama; theater; directing; acting. Scene designers in the early 20th ce...

(Encyclopedia) fascism făshˈĭzəm [key], totalitarian philosophy of government that glorifies the state and nation and assigns to the state control over every aspect of national life. The name was first used by t...

(Encyclopedia)  CE5 Ohio, midwestern state in the Great Lakes region of the United States. It is bordered by Pennsylvania (NE), West Virginia (SE) and Kentucky (S) across the Ohio River, Indiana (W), and Michigan ...