3 ms·

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.