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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...

Lauterbur, Paul Christian

(Encyclopedia)Lauterbur, Paul Christian, 1929–2007, American chemist, b. Sidney, Ohio, Ph.D. Univ. of Pittsburgh, 1962. Lauterbur was (1969–85) a faculty member at the State Univ. of New York at Stony Brook (no...

Keats, Ezra Jack

(Encyclopedia)Keats, Ezra Jack, 1916–83, American author and illustrator of children's books, b. Brooklyn, N.Y., as Jacob Ezra Katz. During the Great Depression, he painted murals for the Works Progress Administr...

Denis, Maurice

(Encyclopedia)Denis, Maurice môrēsˈ dənēˈ [key], 1870–1943, French painter and writer on art. His paintings, usually on religious themes, have not proved so influential as his art theories. As the spokesman...

Forman, Miloš

(Encyclopedia)Forman, Miloš, 1932–2018, Czech-American filmmaker, b. Čáslav, Czechoslovakia (now in the Czech Republic), asJan Tomáš Forman. He attended film school in Prague and worked as a screenwriter and...

perspective

(Encyclopedia)perspective, in art, any method employed to represent three-dimensional space on a flat surface or in relief sculpture. Although many periods in art showed some progressive diminution of objects seen ...

censorship

(Encyclopedia)censorship, official prohibition or restriction of any type of expression believed to threaten the political, social, or moral order. It may be imposed by governmental authority, local or national, by...

Arbus, Diane

(Encyclopedia)Arbus, Diane ärˈbəs [key], 1923–71, American photographer, b. New York City. For nearly 20 years Arbus operated a successful fashion photography studio with her husband, Allan Arbus. She studied ...

Halley's comet

(Encyclopedia)Halley's comet or Comet Halley hălˈē, hāˈlē [key], periodic comet named for Edmond Halley, who observed it in 1682 and identified it as the one observed in 1531 and 1607. Halley did not live to ...

Frank, Robert

(Encyclopedia)Frank, Robert, 1924–2019, Swiss-American photographer and filmmaker, b. Zürich. He immigrated to the United States in 1947 and became a citizen in 1963. One of the 20th century's most influential p...