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mechanics

(Encyclopedia)mechanics, branch of physics concerned with motion and the forces that tend to cause it; it includes study of the mechanical properties of matter, such as density, elasticity, and viscosity. Mechanics...

physics

(Encyclopedia)physics, branch of science traditionally defined as the study of matter, energy, and the relation between them; it was called natural philosophy until the late 19th cent. and is still known by this na...

Le Nain

(Encyclopedia)Le Nain lə năN [key], family of French painters consisting of three brothers: Antoine Le Nain, 1588?–1648, Louis Le Nain, 1593?–1648, and Mathieu Le Nain, 1607–77. They went to Paris from Laon...

Maine, ship

(Encyclopedia)Maine, U.S. battleship destroyed (Feb. 15, 1898) in Havana harbor by an explosion that killed 260 men. The incident helped precipitate the Spanish-American War (Apr., 1898). Commanded by Capt. Charles...

Kiefer, Anselm

(Encyclopedia)Kiefer, Anselm kēˈfər [key], 1945–, German painter. One of the major figures of neoexpressionism, he studied (1970) with Joseph Beuys, who heavily influenced his work. His large paintings of the ...

Murray, Elizabeth

(Encyclopedia)Murray, Elizabeth, 1940–2007, American abstract artist, b. Chicago. She moved in 1967 to New York, where she became part of the post-minimalism generation of artists in the 1970s. In the late 1960s,...

Freedom of Information Act

(Encyclopedia)Freedom of Information Act (1966), law requiring that U.S. government agencies release their records to the public on request, unless the information sought falls into a category specifically exempted...

gravel

(Encyclopedia)gravel, particles of rock, i.e., stones and pebbles, usually round in form and intermediate in size between sand grains and boulders. Gravel is composed of various kinds of rock, the most common const...

hydrogen sulfide

(Encyclopedia)hydrogen sulfide, chemical compound, H2S, a colorless, extremely poisonous gas that has a very disagreeable odor, much like that of rotten eggs. It is slightly soluble in water and is soluble in carbo...

Ibn Gabirol, Solomon ben Judah

(Encyclopedia)Ibn Gabirol, Solomon ben Judah ĭˈbən gäbēˈrôl [key], c.1021–1058, Jewish poet and philosopher, known also as Avicebron, b. Malaga. His secular poetry deals partly with nature and love, but mo...