Description: 2/2
A 10cm radius circular computer has a circumference of L_m = 63 cm in its own reference frame, which is 2.1 ns writing in units of time. Let's spin the computer at 1 Gigaradian/s and assume that it doesn't break apart.
Then the constant t' line (in the computer's frame (x', t')) around the computer's circular boundary will mismatch itself by about beta gamma L_s = 0.24 ns. So a synchronisation signal sent one loop around the circumference will mismatch by 0.24 ns.
There are two related Wikipedia articles:
@boud nice! :D