3 ms·
Light travels 1000km in under 4ms. What else are you adding to that time?
by alextingle 7y ago
Light travels 1000km in under 4ms. What else are you adding to that time?
- uoaei 7y agoThat's true in vacuum. Light traveling through a medium has to reflect off of or absorb/re-emit from everything it bumps into, so it goes slower.
- windsurfer 7y agoI have updated my comment above. I was off by about an order of magnitude.