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Danville

(Encyclopedia)Danville. 1 City (2020 pop. 29,204), seat of Vermilion co., E Ill., on the Vermilion River at the Ind. line; inc. 1839. It is a commercial and ...

gas laws

(Encyclopedia)gas laws, physical laws describing the behavior of a gas under various conditions of pressure, volume, and temperature. Experimental results indicate that all real gases behave in approximately the sa...

Shostakovich, Dmitri

(Encyclopedia)Shostakovich, Dmitri dyĭmēˈtrē shŏstŏkôˈvĭch [key], 1906–75, Russian composer, b. St. Petersburg. Shostakovich studied at the Leningrad Conservatory (1919–25). The early success of his Fi...

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 ...

Gershwin, George

(Encyclopedia)Gershwin, George gŭrshˈwĭn [key], 1898–1937, American composer, b. Brooklyn, N.Y., as Jacob Gershwin. Gershwin wrote some of the most original and popular musical works produced in the United Sta...

tin

(Encyclopedia)tin, metallic chemical element; symbol Sn [Lat. stannum]; at. no. 50; at. wt. 118.710; m.p. 231.9681℃; b.p. 2,270℃; sp. gr. 5.75 (gray), 7.3 (white); valence +2 or +4. Tin exhibits allotropy; abov...

element

(Encyclopedia)CE5 element, in chemistry, a substance that cannot be decomposed into simpler substances by chemical means. A substance such as a compound can be decomposed into its constituent elements by means o...

planetarium

(Encyclopedia)planetarium, optical device used to project a representation of the heavens onto a domed ceiling; the term also designates the building that houses such a device. A modern planetarium consists of as m...

loom

(Encyclopedia)loom, frame or machine used for weaving; there is evidence that the loom has been in use since 4400 b.c. Modern looms are of two types, those with a shuttle (the part that carries the weft through the...

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