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More info on measurements of speed of neutrinos
Recording of live web cast couple of days ago from CERN re measurements http://cdsweb.cern.ch/record/1384486 Other info http://public.web.cern.ch/public/ http://arxiv.org/abs/1109.4897 (can down load detailed PDF, "cast of thousands" participating listed at start) Be very interesting if results are confirmed Regards Eric R Gray (VK3ZSB) ------------------------------- "Richard Clark" wrote in message ... "Tiny Neutrinos May Have Broken Cosmic Speed Limit" http://www.nytimes.com/2011/09/23/sc...speed.html?hpw "the neutrinos raced from a particle accelerator at CERN outside Geneva, where they were created, to a cavern underneath Gran Sasso in Italy, a distance of about 450 miles, about 60 nanoseconds faster than it would take a light beam. That amounts to a speed greater than light by about 0.0025 percent (2.5 parts in a hundred thousand). " I am impressed that they know the Permeability and Permittivity of that dirt path to 0.0025% at any time of year, and time of day, for any weather (for the speed of light comparison). "Dr. Ellis noted that a similar experiment was reported by a collaboration known as Minos in 2007 on neutrinos created at Fermilab in Illinois and beamed through the Earth to the Soudan Mine in Minnesota. That group found, although with less precision, that the neutrino speeds were consistent with the speed of light." They, obviously don't know their dirt (or it could be the effect of 10,000 lakes - umm, Italy has a lake district doesn't it?). "Measurements of neutrinos emitted from a supernova in the Large Magellanic Cloud in 1987, moreover, suggested that their speeds differed from light by less than one part in a billion." No dirt involved there (of course, I could be mistaken; it is a long way without a rest stop). 73's Richard Clark, KB7QHC |
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