I can accept that the travellers has aged more slowly.
But why is this, or how did this happen. How does relative motion or increased gravity cause a slowing of clocks?. Or is this a naieve question to ask.
I have seen in many places and accept that the traveling twin clock slows with respect to the Earth clock caused by relativity.
Can anyone explain or point to an explanation for how this mechanism works.
Yes thanks - as I thought.
Any idea on the mechanism for how the changed velocity causes the slowing in atomic activity for the traveller WRT the Earth frame.
If a traveller from the Earth's frame of reference takes an atomic clock with him, the atomic clock will show less time has passed upon the travellers return compared to an identical clock left on earth. Hence the vibrations of the atoms constituting the travellers clock have slowed down during...