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latent heat

(Encyclopedia)latent heat, heat change associated with a change of state or phase (see states of matter). Latent heat, also called heat of transformation, is the heat given up or absorbed by a unit mass of a substa...

water

(Encyclopedia)CE5 A. Water molecule (black circles represent valence-shell electrons) B. Structure of ice: Each oxygen atom (white circles) is bonded to four other oxygen atoms by hydrogen bonds, the hydrogen at...

Kofu

(Encyclopedia)Kofu kōˈfo͞o [key], city (1990 pop. 200,626), capital of Yamanashi prefecture, central Honshu, Japan. It is an industrial center, with manufactures of silk textiles, jewelry, and crystal ware, as w...

Harrison, Pat

(Encyclopedia)Harrison, Pat (Byron Patton Harrison), 1881–1941, U.S. Congressman, b. Crystal Springs, Miss. A lawyer, he served as a Democrat in the U.S. House of Representatives (1911–19) and in the U.S. Senat...

Waterford, town, Republic of Ireland

(Encyclopedia)Waterford, town (1991 pop. 41,853), seat of Co. Waterford, S Republic of Ireland, on the Suir River near the head of Waterford Harbour. The port town is a center for the export of fruit, meat, and the...

tear gas

(Encyclopedia)tear gas, gas that causes temporary blindness through the excessive flow of tears resulting from irritation of the eyes. The gas is used in chemical warfare and as a means for dispersing mobs. Compoun...

Titan , in astronomy

(Encyclopedia)Titan tīˈtən [key], in astronomy, the largest of the named moons, or natural satellites, of Saturn. Also known as Saturn VI (or S6), Titan is 3,200 mi (5,150 km) in diameter, orbits Saturn at a mea...

pump

(Encyclopedia)pump, device to lift, transfer, or increase the pressure of a fluid (gas or liquid) or to create a vacuum in an enclosed space by the removal of a gas (see vacuum pumps under vacuum). The centrifugal ...

Stevin, Simon

(Encyclopedia)Stevin, Simon sēˈmôn stəvīnˈ [key], 1548–1620, Dutch engineer and mathematician. His experiments in hydrostatics showed that the pressure exerted by a liquid is dependent only on its vertical ...

neon

(Encyclopedia)neon nēˈŏn [key] [Gr.,=new], gaseous chemical element; symbol Ne; at. no. 10; at. wt. 20.1797; m.p. −248.67℃; b.p. −246.048℃; density 0.8999 grams per liter at STP; valence 0. Neon is a col...