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11-16-2007, 05:32 PM
Re: Time cannot exist without matter (mass) and motion

Quote:
Originally Posted by dipayankar View Post
Light is photon. So when in rest (which is hypothetical) photon will evaporate, because the basic property of photon is motion. However having said this, there has been a case when photon has been stopped in the tracks in a Bose - Einstein condensate. I need to find out if they tried measuring the mass of the stopped photon..
Note that, in Bose-Einstein condensates, the speed of light may appear to be slowed, but the actual speed of a photon does not change.

Here's the abstract to the article. For the full article, one would need to subscribe to Nature.
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