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Experimental proofs of increaseof mass with v

  1. Sep 22, 2007 #1
    Is there any experiment that shows the increase in mass ( or kinetic energy ) of a moving body when seen from an observer at rest ?

    I know that sincrotons ( particles accelerators ) must change the frequency bla bla ..

    But once that these particles have been accelerated and hit a target, the heat produced has been measured ?

    I mean, a way of measuring mass ( or kinetic energy ) not based on electric forces.
  2. jcsd
  3. Sep 22, 2007 #2
    Yes, relativistic kinetic energies of particles in accelerators were measured to very high precision by various techniques, including heat release in calorimeters


  4. Sep 22, 2007 #3
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