4 ms·

And if you can break the speed of light, you don't need a second exchange.

• garmaine 6y ago
  It’s quite easy to “break” the speed of light in fiberoptic glass.
  • deleted 6y ago
    [deleted]
  • de_watcher 6y ago
    But it's not that useful even if you pour a glass cube over the whole exchange to slow it down.
  • peteretep 6y ago
    > It’s quite easy to “break” the speed of light in fiberoptic glass. I don’t understand this, why? Does light travel faster than the speed of light in fibre optic glass?
    • Dylan16807 6y ago
      "the speed of light in fiberoptic glass" is the thing being broken.