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Keats, John
(Encyclopedia)Keats, John, 1795–1821, English poet, b. London. He is considered one of the greatest of English poets. The son of a livery stable keeper, Keats attended school at Enfield, where he became the frien...explosive
(Encyclopedia)explosive, substance that undergoes decomposition or combustion with great rapidity, evolving much heat and producing a large volume of gas. The reaction products fill a much greater volume than that ...Acton, John Emerich Edward Dalberg Acton, 1st Baron
(Encyclopedia)Acton, John Emerich Edward Dalberg Acton, 1st Baron, 1834–1902, English historian, b. Naples; grandson of Sir John Francis Edward Acton and of Emmerich Joseph, duc de Dalberg. Denied entrance into C...Sterne, Laurence
(Encyclopedia)Sterne, Laurence stûrn [key], 1713–68, English author, b. Ireland. Educated at Cambridge, he entered the Anglican church and was given the living of Sutton-in-the-Forest, Yorkshire, in 1738, where ...shock
(Encyclopedia)shock, any condition in which the circulatory system is unable to provide adequate circulation to the body tissues, also called circulatory failure or circulatory collapse. Shock results in the slowin...kinetic-molecular theory of gases
(Encyclopedia)kinetic-molecular theory of gases, physical theory that explains the behavior of gases on the basis of the following assumptions: (1) Any gas is composed of a very large number of very tiny particles ...palladium, chemical element
(Encyclopedia)palladium [Gr. Pallas, goddess of wisdom], metallic chemical element; symbol Pd; at. no. 46; at. wt. 106.42; m.p. 1,554℃; b.p. 2,970℃; sp. gr. 12.02 at 20℃; valence +2, +3, or +4. Palladium is a...octane number
(Encyclopedia)octane number, figure of merit representing the resistance of gasoline to premature detonation when exposed to heat and pressure in the combustion chamber of an internal-combustion engine. Such detona...mantle
(Encyclopedia)mantle, portion of the earth's interior lying beneath the crust and above the core. No direct observation of the mantle, or its upper boundary, has been made; its boundaries have been determined solel...percussion instrument
(Encyclopedia)percussion instrument, any instrument that produces musical sound when its surface is struck with an implement (such as a mallet, stick, or disk) or with the hand. Perhaps the most universally familia...Browse by Subject
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