4 ms·

I see this flash at nighttime as well and always thought that it was my sleepy brain jolting awake.

• javert 12y ago
  I sometimes see a flash at nighttime (not accompanied by any sound, though). My first hunch was that my computer or phone may have been bugged to take a flash photo. But that's hard for me to believe. Maybe it's just my brain doing something weird (or something normal).
  • bjelkeman-again 12y ago
    Maybe you are seeing Cherenkov radiation? Cosmic particles passing through the eye. "Cherenkov radiation can be generated in the eye by charged particles hitting the vitreous humour, giving the impression of flashes" http://en.m.wikipedia.org/wiki/Cherenkov_radiation#Characteristics http://en.m.wikipedia.org/wiki/Cherenkov_radiation#Character...
    • fnordfnordfnord 12y ago
      You'd have to be in the path of a cosmic ray shower ,near some dangerously critical nuclear decay, or near the beam-line of a particle accelerator.
      • tripzilch 12y ago
        Better check under the bed, then.