Description:
Mathematical discussions and pursuits.
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The tangled SRT.
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The tangled SRT. ==== . Dr. Kanda. The whole SR is complete nonsense. Socratus. The Einstein’s SRT is right but its interpretation isn’t correct. Why I say so ? ...What is v in the Lorentz transformation? ‘ Socratus. The Lorentz transformation uses two kinds of speed: classical Galilean / Newtonian relative speed (v = dx /dt )... more »
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Singular Measures
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Suppose mu is a regular Borel measure on R^n. Define D mu(x) = lim_{r -> 0} mu(B(x,r)) / m(B(x,r)) for all x for which the limit exists; here m is Lebesgue measure. Say mu is "singular" if it is singular with respect to m, ie mu and m are mutually singular (concentrated on disjoint sets). It's well known that if mu is singular then... more »
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This Week's Finds in Mathematical Physics (Week 283)
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Also available at [link] November 10, 2009 This Week's Finds in Mathematical Physics (Week 283) John Baez We had a great AMS meeting this weekend at UCR, with far too many interesting talks going on simultaneously. For example, there were two sessions on math related to knot theory, one on operator algebras,... more »
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CERN, LHC, Phaeton, Earth, Death
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What happened with Phaeton? Where dozens of meteorites with traces of life come from? Were there thousands of physicists, thinking that the man is not able to explode his own planet? Will our bodies will be packet into comets and sent to other star systems as seeds of new life? What a crafty gene govern by you to hasten our biospheres suicidal... more »
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