3 ms·
Interestingly, the norm of your 4D speed vector is constant, IIRC: https://en.wikipedia.org/wiki/World_line https://en.wikipedia.org/wiki/World_line
by MayeulC 4y ago
Interestingly, the norm of your 4D speed vector is constant, IIRC: https://en.wikipedia.org/wiki/World_line https://en.wikipedia.org/wiki/World_line