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This question already has an answer here:

I know nothing about relativity but I cannot accept that there is a phenomenon called time dilation. However I have no problem with it because of mathematics behind it. I have no problem if time is dilated, because I don't know what time is. But I wonder when they say a clock will work slowly with respect to the other same clock if its speed is higher.

  1. Which kind of clocks they mean? Analog clock, digital clock, etc.

  2. As far as I know some mechanical clocks work by a torsion spring inside them. So, how does the material of the spring know that it must unroll slowly at higher speed? Does higher speed change chemical structure or physical properties of the material of the spring?

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merged by dmckee Jul 9 '16 at 17:33

This question was merged with What is time dilation really? because it is an exact duplicate of that question.