Experiment to demonstrate mutual observed time dilation

Discussion in 'Physics & Math' started by superluminal, Apr 11, 2005.

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  1. Quantum Quack

    Quantum Quack Life's a tease... Valued Senior Member

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    James, it was suggested in another forum that in this case SRT is not applicable due to the fact that we are dealing with accelerating frames when discussing GPS. can I ask what your position is on the issue of accelerating frames and do you believe that the GPS is an accelerating frame?
     
    Quantum Quack, Jun 20, 2005
    #261

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  3. James R

    James R Just this guy, you know? Staff Member

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    QQ:

    The GPS system has to take gravity into account, and SRT does not deal with gravity. Gravitational time dilation effects are not part of SR. On the other hand, SR-like effects due to relative velocity operate in the GPS system just as they would in the absence of gravity.

    In short, as I have explained elsewhere, SR cannot "solve" all the problems in the GPS system, but parts of the "solution" look a lot like SR. Remember, SR is just a special case of GR, so GR results are, in a way, generalisations of SR results to more complicated situations.
     
    James R, Jun 20, 2005
    #262

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  5. Thoth11

    Thoth11 Registered Member

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    I can't see the clip of the experiment. Is it still available?
     
    Thoth11, Nov 2, 2009
    #263

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