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semiconductor
(Encyclopedia) CE5 N-type and P-type crystals: In a pure silicon crystal each silicon atom (Si) is surrounded by four valence electrons. In the N-doped semiconductor, illustrated in the left-hand…González, Julio
(Encyclopedia) González, JulioGonzález, Julioh&oomacr;lˈyō gōnthäˈlĕth [key], 1876–1942, Spanish sculptor. The son of a goldsmith and sculptor, González went to Paris in 1900. There he met…Gogarty, Oliver St. John
(Encyclopedia) Gogarty, Oliver St. JohnGogarty, Oliver St. Johngōˈgərtē [key], 1878–1957, Irish author. A physician, he also served (1922–36) in the parliament of the Irish Free State. Gogarty is…Hernández, José
(Encyclopedia) Hernández, JoséHernández, Joséhōsāˈ ārnänˈdĕs [key], 1834–86, Argentine poet, journalist, and soldier. Hernández lived in the pampas as a child. He was the author of the national…Hale, John Parker
(Encyclopedia) Hale, John Parker, 1806–73, American politician, b. Rochester, N.H. He practiced law at Dover, N.H., and had remarkable success with juries. He was U.S. district attorney (1834–41) and…Hill, David Octavius
(Encyclopedia) Hill, David Octavius, 1802–70, and Robert Adamson, 1821–48, Scottish pioneer photographers. Hill was a painter of romantic Scottish landscapes. In 1843 he was commissioned to make a…Masters, Edgar Lee
(Encyclopedia) Masters, Edgar Lee, 1869–1950, American poet and biographer, b. Garnett, Kans. He maintained a successful law practice in Chicago from 1892 to 1920. Masters's Spoon River Anthology (…Mitchell, Silas Weir
(Encyclopedia) Mitchell, Silas Weir, 1829–1914, American physician and author, b. Philadelphia, M.D. Jefferson Medical College, 1850, studied in Paris. A pioneer in the application of psychology to…mobile, in art
(Encyclopedia) mobilemobilemōˈbēl [key], a type of moving sculptural artwork developed by Alexander Calder in 1932 and named by Marcel Duchamp. Often constructed of colored metal pieces connected by…Droste-Hülshoff, Annette Elisabeth, Freiin von
(Encyclopedia) Droste-Hülshoff, Annette Elisabeth, Freiin or Baroness vonDroste-Hülshoff, Annette Elisabeth, Freiin or Baroness vonänĕtˈə ālēˈzäbĕt frīˈĭn fən drôsˈtə-hülsˈhôf [key], 1797–1848,…Trending
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