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Changes in Mass When Light's Speed is Increased?

  1. Aug 15, 2012 #1
    Through Einstein's Theory of Special Relativity it is known that as the speed of something approaches that of light its mass will increase.
    In the lab scientists have sped light up past the speed of about 299 792 458 m / s (Light's normal speed). Since light is allowed to go beyond that which is the speed limit for all other things and seemingly has no resistance does all the energy go into the increase in speed or is some of it siphoned off for some reason and made to increase the mass of the photons?
     
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  3. Aug 15, 2012 #2

    George Jones

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  4. Aug 15, 2012 #3
    So light, in fact, has not been made to move faster than light and what the researchers did (I think it was at Harvard) was to take advantage of the medium's refractive index? How disappointing.
     
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