3 ms·
Obviously, I did not mean to imply that you can attach a clock on a photon. I thought this goes without saying.
by Yajirobe 8y ago
Obviously, I did not mean to imply that you can attach a clock on a photon. I thought this goes without saying.
- pdonis 8y ago> I did not mean to imply that you can attach a clock on a photon. The issue isn't that you can't attach a clock to a photon in a practical sense. The issue is that even in principle, the concept of "the clock of a photon" is not well-defined. For it to be well-defined, there would need to be an inertial frame in which a photon was at rest. But that is impossible.