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public relations

(Encyclopedia)public relations, activities and policies used to create public interest in a person, idea, product, institution, or business establishment. By its nature, public relations is devoted to serving parti...

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, to remove dust...

hygrometer

(Encyclopedia)hygrometer hīgrŏmˈətər [key], instrument used to measure the moisture content of a gas, as in determining the relative humidity of air. The temperature at which dew or frost forms is a measure of...

parachute

(Encyclopedia)parachute, umbrellalike device designed to retard the descent of a falling body by creating drag as it passes through the air. The development of modern aircraft has led to many experiments in the aer...

York, city, England

(Encyclopedia)York, city and unitary authority (2011 pop. 198,051), N England, at the confluence of the Ouse and Foss rivers. It is located at the historical junction of the three ridings of Yorkshire. York, a rail...

smuggling

(Encyclopedia)smuggling, illegal transport across state or national boundaries of goods or persons liable to customs or to prohibition. Smuggling has been carried on in nearly all nations and has occasionally been ...

barometer

(Encyclopedia)CE5 Aneroid barometer barometer bərŏmˈətər [key], instrument for measuring atmospheric pressure. It was invented in 1643 by the Italian scientist Evangelista Torricelli, who used a column...

contract

(Encyclopedia)contract, in law, a promise, enforceable by law, to perform or to refrain from performing some specified act. In a general sense, all civil obligations fall under tort or contract law. Torts are usual...

computer music

(Encyclopedia)computer music, term used to describe music composed or performed with the aid of a computer. The first substantial piece of music composed on a computer was the Illiac Suite (1956) by the avant-garde...

Chopin, Frédéric François

(Encyclopedia)Chopin, Frédéric François frādārēkˈ fräNswäˈ shôpăNˈ [key], 1810–49, composer for the piano, b. near Warsaw, of French and Polish parentage. His lyrical, often melancholy, compositions ...