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Hamad bin Khalifa al-Thani

(Encyclopedia)Hamad bin Khalifa al-Thani, 1952–, emir of Qatar (1995–2013). The son of Emir Khalifa bin Hamad al-Thani, Hamad is credited with having turned a country of desert nomads into a modern, industriali...

Kara Kum

(Encyclopedia)Kara Kum kärˌə ko͝omˈ [key], two deserts, one in Kazakhstan and one in Turkmenistan. The Caspian Kara Kum or Garagum, the larger desert (c.115,000 sq mi/297,900 sq km), is W of the Amu Darya Rive...

Stavropol Territory

(Encyclopedia)Stavropol Territory, administrative division (1995 pop. 2,650,000), 31,120 sq mi (80,601 sq km), S European Russia, in the North Caucasus, the northern foothills of the main Caucasian range, and the d...

benzaldehyde

(Encyclopedia)benzaldehyde bĕnˌzēnkärˈbənəl [key], C6H5CHO, colorless liquid aldehyde with a characteristic almond odor. It boils at 180℃, is soluble in ethanol, but is insoluble in water. It is formed by ...

Ypres, battles of

(Encyclopedia)Ypres, battles of, three major engagements of World War I fought in and around the town of Ypres in SW Belgium. The first battle of Ypres (Oct.–Nov., 1914) was the last of the series of engagements ...

Casper

(Encyclopedia)Casper, city (2020 pop. 59,038), alt. 5,123 ft (1,561 m), seat of Natrona co., E central Wyo., on the North Platte River; inc. 1889. It is a rail, distr...

concrete

(Encyclopedia)concrete, structural masonry material made by mixing broken stone or gravel with sand, cement, and water and allowing the mixture to harden into a solid mass. The cement is the chemically active eleme...

automobile industry

(Encyclopedia)automobile industry, the business of producing and selling self-powered vehicles, including passenger cars, trucks, farm equipment, and other commercial vehicles. By allowing consumers to commute long...

aerodynamics

(Encyclopedia)aerodynamics, study of gases in motion. As the principal application of aerodynamics is the design of aircraft, air is the gas with which the science is most concerned. Although aerodynamics is primar...

poison

(Encyclopedia)poison, any agent that may produce chemically an injurious or deadly effect when introduced into the body in sufficient quantity. Some poisons can be deadly in minute quantities, others only if relati...