(Encyclopedia) Compton effect [for A. H. Compton], increase in the wavelengths of X rays and gamma rays when they collide with and are scattered from loosely bound electrons in matter. This effect…
(Encyclopedia) Hassel, OddHassel, Oddôd häsˈəl [key], 1897–1981, Norwegian chemist, b. Christiania (now Oslo), grad. Oslo Univ. (1920), Ph.D. Univ. of Berlin (1924). After pursuing X-ray…
(Encyclopedia) Fred Lawrence Whipple Observatory, astronomical observatory located 35 mi (56 km) S of Tucson, Ariz., at an altitude of 8,500 ft (2,590 m). It is operated jointly by the Smithsonian…
(Encyclopedia) King, Coretta Scott, 1927–2006, American civil-rights leader, b. Heiberger, Ala.; the wife (1953–68) of Martin Luther King, Jr. After her husband's assassination, she carried on his…
(Encyclopedia) ScorpiusScorpiusskôrˈpēəs [key] or ScorpioScorpius–pēō [key] [Lat.,=the scorpion], conspicuous southern constellation lying on the ecliptic (the sun's apparent path through the heavens…
THOMASON, Robert Ewing, a Representative from Texas; born in Shelbyville, Bedford County, Tenn., May 30, 1879; moved to Gainesville, Cooke County, Tex., with his parents in 1880; attended the…
DWIGHT, John Wilbur, (son of Jeremiah Wilbur Dwight), a Representative from New York; born in Dryden, Tompkins County, N.Y., May 24, 1859; attended the public schools; pursued further studies…
Auden, Byron, Chaucer, and more
A-B | C-D | E-H | J-M | N-R | S-T | U-Z
Amiri Baraka
Abu Nuwas Addison, Joseph Aidoo, Ama Ata Aiken, Conrad Akhmatova, Anna Aldington,…
(Encyclopedia)
CE5
Triode electron tube
electron tube, device consisting of a sealed enclosure in which electrons flow between electrodes separated either by a vacuum (in a vacuum tube) or by an…
