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asphalt

(Encyclopedia)asphalt ăsˈfôlt, –fălt [key], brownish-black substance used commonly in road making, roofing, and waterproofing. Chemically, it is a natural mixture of hydrocarbons. It varies in consistency fro...

Galápagos Islands

(Encyclopedia)Galápagos Islands gəlăpˈəgōs [key] [Span.,=tortoises], archipelago and province, 3,029 sq mi ...

SLM Corporation

(Encyclopedia)SLM Corporation, foremost provider of funding for higher education to American students; commonly known as Sallie Mae. The company, which also offers information and resources to assist students and o...

Winnipeg, Lake

(Encyclopedia)Winnipeg, Lake, third largest lake of Canada, 9,465 sq mi (24,514 sq km), 264 mi (425 km) long and from 25 to 68 mi (40–109 km) wide, S central Man., Canada, N of Winnipeg. It is a remnant of glacia...

Ganymede, in astronomy

(Encyclopedia)Ganymede gănˈēmēdˌ [key], in astronomy, one of the moons, or natural satellites, of Jupiter; the largest natural satellite in the solar system, it is larger than the planet Mercury. ...

Tait, Peter Guthrie

(Encyclopedia)Tait, Peter Guthrie, 1831–1901, Scottish physicist and mathematician. He was professor of natural philosophy at Edinburgh from 1860 and conducted important investigations in thermodynamics and the k...

Crerar, Thomas Alexander

(Encyclopedia)Crerar, Thomas Alexander, 1876–1975, Canadian political leader. Under his able direction the United Grain Growers, Ltd., of which he was president (1907–29), became one of the most successful farm...

Junín, village, Peru

(Encyclopedia)Junín, city (1993 pop. 16,183), W central Peru, in the Andes. In the vicinity on Aug. 6, 1824, Simón Bolívar, aided by Antonio José de Sucre, defeated the Spanish general José Canterac in the fir...

elastomer

(Encyclopedia)elastomer ĭlăsˈtəmər [key], substance having to some extent the elastic properties of natural rubber. The term is sometimes used technically to distinguish synthetic rubbers and rubberlike plasti...

energy

(Encyclopedia)CE5 Relations between potential energy (PE) and kinetic energy (KE) for a swinging pendulum energy, in physics, the ability or capacity to do work or to produce change. Forms of energy include hea...