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Calvinism

(Encyclopedia)Calvinism, term used in several different senses. It may indicate the teachings expressed by John Calvin himself; it may be extended to include all that developed from his doctrine and practice in Pro...

Congress of the United States

(Encyclopedia)Congress of the United States, the legislative branch of the federal government, instituted (1789) by Article 1 of the Constitution of the United States, which prescribes its membership and defines it...

tide

(Encyclopedia)tide, alternate and regular rise and fall of sea level in oceans and other large bodies of water. These changes are caused by the gravitational attraction of the moon and, to a lesser extent, of the s...

wave, in the earth sciences

(Encyclopedia)CE5 A. Diagram of wave: Wave travels one wavelength during one period B. Diagram of wave: Phase relationships wave, in oceanography, an oscillating movement up and down, of a body of water caused ...

magnetism

(Encyclopedia)CE5 Lines of induction around a single bar magnet and between opposite poles of different magnets magnetism, force of attraction or repulsion between various substances, especially those made of i...

mirage

(Encyclopedia)mirage mĭräzhˈ [key], atmospheric optical illusion in which an observer sees in the distance a nonexistent body of water or an image, sometimes distorted, of some object or of a complete scene. Exa...

narcotic

(Encyclopedia)narcotic, any of a number of substances that have a depressant effect on the nervous system. The chief narcotic drugs are opium, its constituents morphine and codeine, and the morphine derivative hero...

icon

(Encyclopedia)icon [Gr. eikon=image], single image created as a focal point of religious veneration, especially a painted or carved portable object of the Orthodox Eastern faith. Icons commonly represent Christ Pan...

Isabella I

(Encyclopedia)Isabella I or Isabella the Catholic, 1451–1504, Spanish queen of Castile and León (1474–1504), daughter of John II of Castile. In 1469 she married Ferdinand of Aragón (later King Ferdinand II of...

Dewey, John

(Encyclopedia)Dewey, John, 1859–1952, American philosopher and educator, b. Burlington, Vt., grad. Univ. of Vermont, 1879, Ph.D. Johns Hopkins, 1884. He taught at the universities of Minnesota (1888–89), Michig...