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laissez-faire

(Encyclopedia)laissez-faire lĕsˌā fârˈ [key] [Fr.,=leave alone], in economics and politics, doctrine that an economic system functions best when there is no interference by government. It is based on the belie...

hydraulic machine

(Encyclopedia)CE5 Hydraulic pressure: In any hydraulic device the pressure exerted by one piston is transmitted throughout the fluid. Since pressure equals force divided by area, a small force (F1) exerted on a ...

Shaw, George Bernard

(Encyclopedia)Shaw, George Bernard, 1856–1950, Irish playwright and critic. He revolutionized the Victorian stage, then dominated by artificial melodramas, by presenting vigorous dramas of ideas. The lengthy pref...

nitrogen cycle

(Encyclopedia)CE5 Nitrogen cycle nitrogen cycle, the continuous flow of nitrogen through the biosphere by the processes of nitrogen fixation, ammonification (decay), nitrification, and denitrification. Nitrogen...

classification

(Encyclopedia)CE5 classification, in biology, the systematic categorization of organisms into a coherent scheme. The original purpose of biological classification, or systematics, was to organize the vast number...

chivalry

(Encyclopedia)chivalry shĭvˈəlrē [key], system of ethical ideals that arose from feudalism and had its highest development in the 12th and 13th cent. Chivalric ethics originated chiefly in France and Spain and ...

skiing

(Encyclopedia)skiing, sport of sliding over snow on skis—long, narrow, flexible runners. Water skiing is a warm-weather sport in which a motor-propelled craft tows a skier through the water. Although its orig...

canal

(Encyclopedia)canal, an artificial waterway constructed for navigation or for the movement of water. The digging of canals for irrigation probably dates back to the beginnings of agriculture, and traces of canals h...

fuel

(Encyclopedia)fuel, material that can be burned or otherwise consumed to produce heat. The common fuels used in industry, transportation, and the home are burned in air. The carbon and hydrogen in fuel rapidly comb...

orbit

(Encyclopedia)CE5 Important points in a planet's orbit as seen from the earth orbit, in astronomy, path in space described by a body revolving about a second body where the motion of the orbiting bodies is domi...