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    • Thread Starter

    I was wondering if anyone has a decent way of understanding which is which t in time dilation.

    t' = t/ ....

    We were taught that

    t' = the stationary observer
    t = the moving observer

    But some questions it doesn't play out like that, also if one observer is moving at a constant speed, which one would you know is actually moving

    That's the whole point of relativity. There is no absolute stationary observer. Each observer observes time dilation in the clocks of the other.
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