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cooling system

(Encyclopedia)cooling system: see air conditioning; internal-combustion engine; refrigeration. ...

Rio Branco

(Encyclopedia)Rio Branco, city (1996 pop. 228,907), capital of Acre state, NW Brazil, on the Acre River. Rubber and Brazil nuts are its chief products; there is also some farming. Rio Branco has air connections wit...

North Las Vegas

(Encyclopedia)North Las Vegas, city (1990 pop. 47,707), Clark co., SE Nev., a residential suburb of Las Vegas; inc. 1946. Tourism is the economic mainstay of this growing suburb. The city's population more than tri...

O'Toole, Erin Michael

(Encyclopedia)O'Toole, Erin Michael, 1973–, Canadian politician. He served in the Royal Canadian Air Force (1991–2000), then earned a law degree and practised corporate law. A member of the Conservative party, ...

Black, Joseph

(Encyclopedia)Black, Joseph, 1728–99, Scottish chemist and physician, b. France. He was professor of chemistry at Glasgow (1756–66) and from 1766 at Edinburgh. He is best known for his theories of latent heat a...

damp

(Encyclopedia)damp, in mining, any mixture of gases in an underground mine, especially oxygen-deficient or noxious gases. The term damp probably is derived from the German dampf, meaning fog or vapor. Several disti...

Riverside

(Encyclopedia)Riverside. 1 City (1990 pop. 226,505), seat of Riverside co., S Calif.; inc. 1883. One of the fastest growing U.S. cities in the late 20th cent., it is famous for its orange industry. The navel orange...

Saint Lawrence Seaway

(Encyclopedia)Saint Lawrence Seaway, international waterway, 2,342 mi (3,769 km) long, consisting of a system of canals, dams, and locks in the St. Lawrence River and connecting channels between the Great Lakes; op...

wings

(Encyclopedia)CE5 A. Structure of a bird wing B. Structure of a bat wing wings, flight organs of the bird, the bat, and the insect. Birds' wings are pectoral appendages that are basically the same in skeletal...

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