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Citrine, Walter McLennan Citrine, 1st Baron
(Encyclopedia)Citrine, Walter McLennan Citrine, 1st Baron sĭtrēnˈ [key], 1887–1983, English trade union leader. An electrician, he became district secretary of the electrical trade union in 1914 and rose to be...Skagit
(Encyclopedia)Skagit skăjˈĭt [key], river, c.150 mi (240 km) long, rising in the Cascade Range, British Columbia, and flowing SW through Wash. into Puget Sound. Gorge High Dam, Diablo Dam, and Ross Dam provide e...Volta, Alessandro, Conte
(Encyclopedia)Volta, Alessandro, Conte älĕs-sänˈdrō kônˈtā vôlˈtä [key], 1745–1827, Italian physicist. He was professor of physics at the Univ. of Pavia from 1779 and became famous for his work in elec...Guericke, Otto von
(Encyclopedia)Guericke, Otto von ôˈtō fən gāˈrĭkə [key], 1602–86, German physicist, noted for his study of pneumatics. He carried out his most important researches while burgomaster (1646–81) of Magdebu...Tiber
(Encyclopedia)Tiber tīˈbər [key], Ital. Tevere, Latin Tiberis, river, 251 mi (404 km) long, rising in the Etruscan Apennines, central Italy. It flows generally S across Tuscany, Umbria, and N Latium, then SW thr...matter
(Encyclopedia)matter, anything that has mass and occupies space. Matter is sometimes called koinomatter (Gr. koinos=common) to distinguish it from antimatter, or matter composed of antiparticles. The atomic th...Ringwood
(Encyclopedia)Ringwood, borough (1990 pop. 12,623), Passaic co., N N.J., in the Ramapo Mts. and on the Wanaque River near the N.Y. line. Iron was found nearby in 1730; mines and works were developed from 1764 by Pe...polycarbonates
(Encyclopedia)polycarbonates, group of clear, thermoplastic polymers used mainly as molding compounds (see plastic). Polycarbonates are prepared by the reaction of an aromatic difunctional phenol with either phosge...tunneling
(Encyclopedia)tunneling, quantum-mechanical effect by which a particle can penetrate a barrier into a region of space that would be forbidden by ordinary classical mechanics. Tunneling is a direct result of the wav...'t Hooft, Gerardus
(Encyclopedia)'t Hooft, Gerardus, 1946–, Dutch theoretical physicist, Ph.D. Univ. of Utrecht, 1972. He has been a professor at the Univ. of Utrecht since 1977. 't Hooft shared the 1999 Nobel Prize in Physics with...Browse by Subject
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