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How infinite does time get by gamma

  1. Mar 6, 2008 #1
    How infinite does time get by gamma....

    So I was thinking, say you have a photon traveling at c. I would assume that the photon's own time frame would have time passing as normal. Now after a time t has passed in the photon's frame, some infinite amount of time would have passed say, on earth by the time dilation equations, but that seemed a bit strange, from the light's point of view anyways, what would it "see" after a second or whatever in its own time? The universe come and gone? >.<

    Then I thought about assigning different alephs to the set of time intervals traversed, but meh I'm now more confused that before. Help plz! ;-)
  2. jcsd
  3. Mar 6, 2008 #2


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    Hi zZhang! :smile:

    A photon could measure time and distance using its own wavelength as a "measuring-rod", I suppose.

    So a photon can only really compare its own measurements with another photon's.

    Comparing its own measurements with those of a slower-than-light observer doesn't make any more sense than trying to project something onto a screen when the angle of the screen to you is 0º - the ratios become infinite!
  4. Mar 6, 2008 #3
    Yea that was the thing, that it didn't make any sense. Is there just no sense of time in the photon's frame?
  5. Mar 6, 2008 #4


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    Be a photon!

    Well, as I said, the photon could measure time by using its wavelength - it should certainly be able to compare the lengths of different objects that way, and also to compare the wavelengths of other photons! :smile:

    But unless you're thinking of becoming a photon yourself … :confused:
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