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transportation

(Encyclopedia) transportation, conveyance of goods and people over land, across water, and through the air. See also commerce. The first practical attempts at air transportation began with the…

Midwest City

(Encyclopedia) Midwest City, city (1990 pop. 52,267), Oklahoma co., central Okla., a residential suburb of Oklahoma City; founded 1942 with the activation of adjoining Tinker Air Force Base, a…

Cypress, city, United States

(Encyclopedia) Cypress Cypress sīˈprəs [key], city (2020 pop. 50,151), Orange co., S Calif. near Long Beach; inc…

Earth Day

(Encyclopedia) Earth Day, Apr. 22, a day to celebrate the environment. The first Earth Day was organized in 1970 to promote the ideas of ecology, encourage respect for life on earth, and highlight…

Horta

(Encyclopedia) Horta Horta hôrˈtə, Port. ôrˈtə [key], town, capital of Horta dist., in the Azores, Portugal, on Faial…

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…

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…

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…

cooling system

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

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…