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dip

(Encyclopedia)dip, in agriculture, method of treating animals (chiefly livestock) infested with skin parasites such as mites, ticks, and warbles. The animal is dipped into or forced to swim through a tank filled wi...

Zizka, John

(Encyclopedia)Zizka, John yän zhēshˈkä [key], d. 1424, Bohemian military leader and head of the Hussite forces during the anti-Hussite crusades of Holy Roman Emperor Sigismund. Before the Hussite Wars, which ga...

wind tunnel

(Encyclopedia)wind tunnel, apparatus for studying the interaction between a solid body and an airstream. A wind tunnel simulates the conditions of an aircraft in flight by causing a high-speed stream of air to flow...

Santa Monica

(Encyclopedia)Santa Monica sănˈtə mŏnˈĭkə [key], city (1990 pop. 86,905), Los Angeles co., S Calif., on Santa Monica Bay; inc. 1886. Tourism and retailing are important, and the city has motion-picture, biot...

plumbing

(Encyclopedia)plumbing, piping systems inside buildings for water supply and sewage. The Romans had a highly developed plumbing system; water was brought to Rome by aqueducts and distributed to homes in lead pipes�...

Citadel, The–The Military College of South Carolina

(Encyclopedia)Citadel, The–The Military College of South Carolina sĭtˈədəl, –dĕlˌ [key], at Charleston; state supported; chartered (1842) as The Citadel, opened 1843. From 1882 to 1910 it was named the So...

cavalry

(Encyclopedia)cavalry, a military force consisting of mounted troops trained to fight from horseback. Horseback riding probably evolved independently in the Eurasian steppes and the mountains above the Mesopotamian...

space shuttle

(Encyclopedia)space shuttle, reusable U.S. space vehicle (1981–2011). Developed by the National Aeronautics and Space Administration (NASA) and officially known as the Space Transportation System (STS), it was th...

strategy and tactics

(Encyclopedia)strategy and tactics, in warfare, related terms referring, respectively, to large-scale and small-scale planning to achieve military success. Strategy may be defined as the general scheme of the condu...

Hagel, Chuck

(Encyclopedia)Hagel, Chuck (Charles Timothy Hagel), 1946–, U.S. politician and government official, b. North Platte, Nebr. He served (1967–68) in the infantry in the Vietnam War, receiving several decorations. ...