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Superconductivity Competitiveness Act Of 1988
Superconductivity is a set of physical properties observed in certain materials where electrical resistance vanishes and magnetic flux fields are expelled from the material. Any material exhibiting these properties is a superconductor. Unlike an ordinary metallic conductor, whose resistance decreases gradually as its temperature is lowered even down to near absolute zero, a superconductor has a characteristic critical temperature below which the resistance drops abruptly to zero. An electric current through a loop of superconducting wire can persist indefinitely with no power source. The superconductivity phenomenon was discovered in 1911 by Dutch physicist Heike Kamerlingh Onnes. Like ferromagnetism and atomic spectral lines, superconductivity is a phenomenon which can only be explained by quantum mechanics. It is characterized by the Meissner effect, the complete ejection of magnetic field lines from the interior of the superconductor during its transitions into the s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Meissner Effect P1390048
Meissner, Meißner or Meisner may refer to: Geography Meissner is the name of the following geographic features: * the Meißner (range), an important mountain range in Hesse, Germany * Hoher Meißner, the highest peak of the Meißner range * Meißner, Hesse, a community in the district Werra-Meißner-Kreis, in Hesse, Germany Surnames Meissner is a German surname. Notable people with the surname and its variants include: * Alexander Meissner (1883–1958), Austrian engineer and physicist * Andy Meisner (born 1973), American politician * August Gottlieb Meißner (1753–1807), German writer * Boris Meissner (1915–2003), German lawyer and social scientist * Bruno Meissner (1868–1947), German assyriologist * Carl Meissner (1800–1874), Swiss botanist ** Meisner's Banksia, Australian shrub * Carl Meissner (1830–1900), German Latin scholar * Constantin Meissner (1854-1942), Romanian teacher * Elena Meissner (1867-1940), Romanian feminist * Elinor Meissner Traeger (1906-19 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
