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This could be very basic question, nevertheless its troubling me
In Feynman's lectures, he says that though motion is relative, there is an absolute motion between 2 frames. A high velocity mu-meson when moved linearly or circularly would live just as longer than stationary one. Or a twin in a spaceship would age more slowly than his counterpart on earth. Here, its the spaceship that is moving, as to compare the results, he would have to stop, and thus experience acceleration. Thus even if we argue that motion is relative, its the frame which is actually in motion that experiences time dilation.
But what if there is scenario that in a blank empty space two objects pass each other. No one would know who is in motion. No one has option to stop either. So when each one measures distance and speed of other, what will determine the difference in measurments. Even the nature does not know who is in motion, so ideally both of them should have same measurments when tallied. But according to SR, both measurments should be different..What am I missing?..I am assuming its possible to tally results without stopping
In Feynman's lectures, he says that though motion is relative, there is an absolute motion between 2 frames. A high velocity mu-meson when moved linearly or circularly would live just as longer than stationary one. Or a twin in a spaceship would age more slowly than his counterpart on earth. Here, its the spaceship that is moving, as to compare the results, he would have to stop, and thus experience acceleration. Thus even if we argue that motion is relative, its the frame which is actually in motion that experiences time dilation.
But what if there is scenario that in a blank empty space two objects pass each other. No one would know who is in motion. No one has option to stop either. So when each one measures distance and speed of other, what will determine the difference in measurments. Even the nature does not know who is in motion, so ideally both of them should have same measurments when tallied. But according to SR, both measurments should be different..What am I missing?..I am assuming its possible to tally results without stopping