scott wrote:
> According to this page:
>
> http://math.ucr.edu/home/baez/physics/Quantum/see_a_photon.html
>
> A rod in your eye must receive about 5-9 photons over 100 ms to tell
> your brain that something is there. That is a pretty damn small amount
> of light.
And THAT is why when it's dark, everything seems "sparkly", I presume.
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