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iodine

(Encyclopedia)iodine īˈədīn, –dĭn [key] [Gr.,=violet], nonmetallic chemical element; symbol I; at. no. 53; at. wt. 126.90447; m.p. 113.5℃; b.p. 184.35℃; sp. gr. 4.93 at 20℃; valence −1, +1, +3, +5, o...

Elephanta

(Encyclopedia)Elephanta ĕlĭfănˈtə [key], island, c.2 sq mi (5.2 sq km), in Mumbai harbor, Maharashtra state, W India. It is noted for six Brahmanic caves, carved (8th cent.) from solid rock some 250 ft (76 m) ...

Néel, Louis Eugène Félix

(Encyclopedia)Néel, Louis Eugène Félix, 1904–2000, French physicist, Ph.D. Univ. of Strasbourg, 1932. He was a professor at the Univ. of Strasbourg from 1932 to 1945, when he joined the faculty at the Univ. of...

Kovalevsky, Sonya

(Encyclopedia)Kovalevsky, Sonya or Sophie kōˌvəlĕfˈskē [key], 1850–91, Russian mathematician. She studied at the universities of Heidelberg and Berlin (under K. T. Weierstrass) and in 1874 received a Ph.D. ...

liquefied petroleum gas

(Encyclopedia)liquefied petroleum gas or LPG, mixture of gases, chiefly propane and butane, produced commercially from petroleum and stored under pressure to keep it in a liquid state. The boiling point of liquefie...

polystyrene

(Encyclopedia)polystyrene pŏlˌēstīˈrēn [key], widely used plastic; it is a polymer of styrene. Polystyrene is a colorless, transparent thermoplastic that softens slightly above 100℃ (212℉) and becomes a v...

Pyrenean shepherd

(Encyclopedia)Pyrenean shepherd or Berger des Pyrénées, breed of medium-sized herding dog that originated in the Pyrenees of S France; its name is often shortened to pyr shep. The breed comes in two varieties, th...

Raoult's law

(Encyclopedia)Raoult's law räo͞olzˈ [key] [for F. M. Raoult, a French physicist and chemist] states that the addition of solute to a liquid lessens the tendency for the liquid to become a solid or a gas, i.e., r...

Arte Povera

(Encyclopedia)Arte Povera [Ital.,=poor art], influential art movement that arose in Italy in the late 1960s. It was championed by the Italian art critic Germano Celant, who also named (1967) the movement. It was ch...

Sullivan, John

(Encyclopedia)Sullivan, John, 1740–95, American Revolutionary general, b. Somersworth, N.H. He was a lawyer and a delegate (1774–75, 1780–81) to the Continental Congress but is better remembered as a military...