Yes, it is clear for me now, I was naively believing that C' (which I now know from Ben as being the carousel) could be synchronized. I could have guessed that the paradox was a proof of this impossibility (which it is I believe) :). Thanks to both of you, I can now sleep well.
You were too fast and posted while I was replying to your first post. Your lecture is very interesting and seems to respond to my question, although it will take me some time to assimilate :) Thanks again Ben.
Thank you Pallen for your welcome and your prompt reply!
I agree that the coordinate is not straight, but it can be made 'almost' straight by increasing the circle size, and for S large enough, the transformation will necessarily lead for t=0 to something like t'=-ax along the circle for...
Hi,
I'm new here. This question may already have an answer but I didn't find it. Sorry if there's already one. It's a static version of the twin paradox, without travel and without twins.
We have 2 circles C and C' that are superposed. C is fixed, with time t and co-ordinate x along the circle...