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fan

(Encyclopedia) fan, device for agitating air or gases or moving them from one location to another. Mechanical fans with revolving blades are used for ventilation, in manufacturing, in winnowing grain…

radiator

(Encyclopedia) radiator, device used to heat an area surrounding it or to cool a fluid circulating within it. The familiar radiators of steam and hot water heating systems in buildings are misnamed,…

Kingswood

(Encyclopedia) Kingswood, city (1991 pop. 54,736), South Gloucestershire, SW England. A residential suburb of Bristol, the city of Kingswood has printing and light engineering industries. The area is…

Waves

(Encyclopedia) Waves (Women Appointed for Voluntary Emergency Service), U.S. navy organization, created (1942) in World War II to release male naval personnel for sea duty. The organization was…

Westinghouse, George

(Encyclopedia) Westinghouse, George, 1846–1914, American inventor and manufacturer, b. Central Bridge, N.Y. In the Civil War he served in the Union army and navy. Among his inventions in the railroad…

player piano

(Encyclopedia) player piano, an upright piano incorporating a mechanical system that automatically plays the encoded contents of a paper strip. This strip, perforated with holes whose position and…

sneeze

(Encyclopedia) sneeze, involuntary violent expiration of air through the nose and mouth. It results from stimulation of the nervous system in the nose, causing sudden contraction of the muscles of…

Bernoulli's principle

(Encyclopedia) CE5 Bernoulli's principle Bernoulli's principle, physical principle formulated by Daniel Bernoulli that states that as the speed of a moving fluid (liquid or gas) increases, the…

rain

(Encyclopedia) rain, precipitation in liquid form. It consists of drops of water falling from clouds; if the drops are very small, they are collectively termed drizzle. Rain plays a key role in the…

nose

(Encyclopedia) nose, olfactory and respiratory organ, located between the eyes. The external nose, composed of bone and cartilage, is the most prominent feature of the face in humans. The internal…