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National Radio Astronomy Observatory
(Encyclopedia)National Radio Astronomy Observatory (NRAO), federal observatory for radio astronomy, founded in 1956 and operated under contract with the National Science Foundation by Associated Universities, Inc.,...niobium
(Encyclopedia)niobium nīōˈbēəm [key], metallic chemical element; symbol Nb; at. no. 41; at. wt. 92.90638; m.p. about 2,468℃; b.p. 4,742℃; sp. gr. 8.57 at 20℃; valence +2, +3, +4, or +5. Niobium is a rare...Ollivier, Émile
(Encyclopedia)Ollivier, Émile āmēlˈ ôlēvyāˈ [key], 1825–1913, French statesman, a leading figure in the “Liberal Empire” of Napoleon III. Widely known as a brilliant lawyer, he was elected to the legi...Motlanthe, Kgalema Petrus
(Encyclopedia)Motlanthe, Kgalema Petrus kälāˈmä, mōtlänˈtā [key], 1949–, South African politician, b. Johannesburg. A fierce opponent of apartheid, he was influenced by Steve Biko and organized student pr...confession
(Encyclopedia)confession, in law, the formal admission of criminal guilt, usually obtained in the course of examination by the police or prosecutor or at trial. For a confession to be admissible as evidence against...copernicium
(Encyclopedia)copernicium, artificially produced radioactive chemical element; symbol Cn; at. no. 112; mass number of most stable isotope 285; m.p., b.p., sp. gr., and valence unknown. Situated in Group 12 of the p...Dewey, George
(Encyclopedia)Dewey, George do͞oˈē, dyo͞oˈ– [key], 1837–1917, American admiral, hero of the battle of Manila, b. Montpelier, Vt., grad. Annapolis, 1858. He saw active duty in the Civil War and rose in the ...diphtheria
(Encyclopedia)diphtheria dĭfthērˈēə [key], acute contagious disease caused by Corynebacterium diphtheriae (Klebs-Loffler bacillus) bacteria that have been infected by a bacteriophage. It begins as a soreness o...electromotive series
(Encyclopedia)electromotive series, list of metals whose order indicates the relative tendency to be oxidized, or to give up electrons (see oxidation and reduction); the list also includes the gas hydrogen. The ele...Amherst, Jeffery Amherst, Baron
(Encyclopedia)Amherst, Jeffery Amherst, Baron ămˈərst [key], 1717–97, British army officer. He served in the War of the Austrian Succession and in the early part of the Seven Years War. In 1758 he was sent to ...Browse by Subject
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