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photonics
(Encyclopedia) photonics, the science and technology based on and concerned with the controlled flow of photons, or light particles. It is the optical equivalent of electronics, and the two…Backus, John Warner
(Encyclopedia) Backus, John Warner, 1924–2007, American computer scientist, b. Philadelphia, grad. Columbia (M.A. 1950). Trained as a mathematician, he was hired (1950) by IBM Corp. as a computer…silicon carbide
(Encyclopedia) silicon carbide, chemical compound, SiC, that forms extremely hard, dark, iridescent crystals that are insoluble in water and other common solvents. Widely used as an abrasive, it is…Ružička, Leopold Stephen
(Encyclopedia) Ružička, Leopold Stephen or Lavoslav Stjepan 1887–1976, Swiss chemist, b. Croatia (then in Austria-Hungary), Dr.Ing. Technische Hochschule, Karlsruhe, Germany, 1910. Ružička was a…putty
(Encyclopedia) putty, commonly a mixture of whiting (calcium carbonate) and boiled linseed oil. Other substances may be combined with the oil to make putties suitable for some specific purpose. For…avionics
(Encyclopedia) avionicsavionicsāˌvēŏnˈĭks [key], electronic instruments used in air or space flight; also the design and production of such instruments. Early planes had few instruments, but as…graphene
(Encyclopedia) graphene, virtually transparent, highly conductive carbon material in which the atoms are organized into a honeycomblike arrangement and form a thin sheet that is one atom thick. Andre…Haldane, Frederick Duncan Michael
(Encyclopedia) Haldane, Frederick Duncan Michael, 1951–, British physicist, b. London, England, Ph.D. Cambridge, 1978. Haldane taught at the Univ. of Southern California (1981–85, 1987–90) and worked…Liebig, Justus, Baron von
(Encyclopedia) Liebig, Justus, Baron vonLiebig, Justus, Baron vony&oobreve;sˈt&oobreve;s bärônˈ fən lēˈbĭkh [key], 1803–73, German chemist. As professor at Giessen (1824–52), he was among the…Coanda effect
(Encyclopedia) Coanda effect or wall-attachment effect, the tendency of a moving fluid, either liquid or gas, to attach itself to a surface and flow along it. As a fluid moves across a surface a…Trending
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