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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...

thresher shark

(Encyclopedia)thresher shark, long-tailed, warm-water shark, genus Alopias. The upper fork of its tail is slender and sickle-shaped and is about equal in length to the rest of the body. This shark uses its tail str...

porgy

(Encyclopedia)porgy pôrˈgē [key], common name for members of the Sparidae, a family of small-mouthed fishes with strong teeth adapted for crushing their food of shellfish and crustaceans. Porgies are found in wa...

Dekker, Eduard Douwes

(Encyclopedia)Dekker, Eduard Douwes məltätüˈlē [key], 1820–87, Dutch novelist. His experiences in the Dutch colonial service in Java (1838–57) made him an ardent advocate of reform in colonial administrati...

Mavrokordatos, Alexander

(Encyclopedia)Mavrokordatos or Mavrocordatos, Alexander both: mävˌrôkôr-ᵺäˌtôs [key], 1791–1865, Greek patriot and statesman. He took an active part in the Greek revolt (1821) against Turkey and wrote th...

montage

(Encyclopedia)montage mŏntäzhˈ, Fr. môNtäzhˈ [key], the art and technique of motion-picture editing in which contrasting shots or sequences are used to effect emotional or intellectual responses. It was devel...

Robinson-Patman Act

(Encyclopedia)Robinson-Patman Act, passed by the U.S. Congress in 1936 to supplement the Clayton Antitrust Act. The act, advanced by Congressman Wright Patman, forbade any person or firm engaged in interstate comme...

sin, in religion

(Encyclopedia)sin, in religion, unethical act. The term implies disobedience to a personal God, as in Judaism, Christianity, and Islam, and is not used so often in systems such as Buddhism where there is no persona...

Katharine of Aragón

(Encyclopedia)Katharine of Aragón, 1485–1536, first queen consort of Henry VIII of England; daughter of Ferdinand II of Aragón and Isabella of Castile. In 1501 she was married to Arthur, eldest son of Henry VII...

Lollardry

(Encyclopedia)Lollardry lŏlˈyo͝ordrē [key] or Lollardy, medieval English movement for ecclesiastical reform, led by John Wyclif, whose “poor priests” spread his ideas about the countryside in the late 14th ...