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Pyle, Howard

(Encyclopedia) Pyle, Howard, 1853–1911, American illustrator and writer, b. Wilmington, Del., studied at the Art Students League, New York City. His illustrations appeared regularly in Harper's…

Rhea, in astronomy

(Encyclopedia) Rhea, in astronomy, one of the named moons, or natural satellites, of Saturn. Also known as Saturn V (or S5), Rhea is 950 mi (1530 km) in diameter, orbits Saturn at a mean distance of…

Barnard's star

(Encyclopedia) Barnard's star, star with the largest observed proper motion (rate of motion across the sky with respect to other stars); located in the constellation Ophiuchus. The star's large…

Orff, Carl

(Encyclopedia) Orff, CarlOrff, Carlôrf [key], 1895–1982, German composer and educator. After studying at the Academy of Music at Munich, he helped to found the Günter School there in 1924. As a…

Burnett, Carol

(Encyclopedia) Burnett, CarolBurnett, Carolbərnĕtˈ [key], 1936–, American television performer, b. San Antonio, Tex. Beginning her show-business life as a singer, she soon turned to comedy. After…

Carruthers, George Richard

(Encyclopedia) Carruthers, George Richard, 1939-2020, African-American astrophysicist, b. Cincinnati, OH, Univ. of Illinois at Urbana-Champaign (BS,…

reflection

(Encyclopedia) CE5 Image formation by curved mirrors and lenses reflection, return of a wave from a surface that it strikes into the medium through which it has traveled. The general principles…