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chlorofluorocarbons

(Encyclopedia)chlorofluorocarbons klōrˌəflo͝orˈəkärˌbənz, klôrˌ– [key] (CFCs), organic compounds that contain carbon, chlorine, and fluorine atoms. CFCs are highly effective refrigerants that were deve...

journalism

(Encyclopedia)journalism, the collection and periodic publication or transmission of news through media such as newspaper, periodical, television, and radio. By broadcasting events such as the Watergate hearin...

rocket, in aeronautics

(Encyclopedia)CE5 Relative positions of the components of the Saturn V rocket, the U.S. space vehicle used in the moon missions rocket, any vehicle propelled by ejection of the gases produced by combustion of s...

tire

(Encyclopedia)tire, device made of rubber and fabric and attached to the outer rim of a vehicle wheel. Solid rubber tires were in limited use before 1850; they are still used in some special applications, e.g., for...

cloud

(Encyclopedia)CE5 Approximate heights of some types of clouds cloud, aggregation of minute particles of water or ice suspended in the air. Cloudiness (or proportion of the sky covered by any form of cloud),...

finch

(Encyclopedia)finch, common name for members of the Fringillidae, the largest family of birds (including over half the known species), found in most parts of the world except Australia. The true finches are charact...

Bengal

(Encyclopedia)Bengal bĕng-gôlˈ, bĕn– [key], region, 77,442 sq mi (200,575 sq km), E India and Bangladesh, on the Bay of Bengal. The inland section is mountainous, with peaks up to 12,000 ft (3,660 m) high in ...

global warming

(Encyclopedia)global warming, the gradual increase of the temperature of the earth's lower atmosphere as a result of the increase in greenhouse gases since the Industrial Revolution. Global warming and its effects,...

corporation

(Encyclopedia)corporation, in law, organization enjoying legal personality for the purpose of carrying on certain activities. Most corporations are businesses for profit; they are usually organized by three or more...

Central Intelligence Agency

(Encyclopedia)Central Intelligence Agency (CIA), independent executive bureau of the U.S. government established by the National Security Act of 1947, replacing the wartime Office of Strategic Services (1942–45),...