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continental drift

(Encyclopedia)CE5 Continental drift (arrows indicate the directions of motion of the landmasses) A. Proposed reconstruction of the supercontinent Pangaea indicating the major present landmasses B. Proposed recon...

chemical industry

(Encyclopedia)chemical industry, the business of using chemical reactions to turn raw materials, such as coal, oil, and salt, into a variety of products. During the 19th and 20th cent. technological advances in the...

city

(Encyclopedia)city, densely populated urban center, larger than a village or a town, whose inhabitants are engaged primarily in commerce and industry. In the United States a city is legally an incorporated municipa...

Glass, Philip

(Encyclopedia)Glass, Philip, 1937–, American composer, b. Baltimore. Considered one of the most innovative of contemporary composers, he was a significant figure in the development of minimalism in music. Glass a...

engineering

(Encyclopedia)engineering, profession devoted to designing, constructing, and operating the structures, machines, and other devices of industry and everyday life. Until the Industrial Revolution there were only t...

Turgot, Anne Robert Jacques

(Encyclopedia)Turgot, Anne Robert Jacques än rōbĕrˈ zhäk türgōˈ [key], 1727–81, French economist, comptroller general of finances (1774–76). The son of a rich merchant, he showed precocious ability at s...

flower

(Encyclopedia)CE5 Longitudinal cross section of a flower at the time of fertilization, showing a pollen grain and a pollen tube. flower, name for the specialized part of a plant containing the reproductive orga...

Keynes, John Maynard, Baron Keynes of Tilton

(Encyclopedia)Keynes, John Maynard, Baron Keynes of Tilton kānz [key], 1883–1946, English economist and monetary expert, studied at Eton and Cambridge. Keynesian economics stands as the most influential eco...

Khmer Rouge

(Encyclopedia)Khmer Rouge ro͞ozh [key], name given to native Cambodian Communists. Khmer Rouge soldiers, aided by North Vietnamese and Viet Cong troops, began a large-scale insurgency against government forces in ...

skin

(Encyclopedia)CE5 Cross section of skin skin, the flexible tissue (integument) enclosing the body of vertebrate animals. In humans and other mammals, the skin operates a complex organ of numerous structures (so...