"Zeger Knaepen" <zeg### [at] povplacecom> wrote:
> > Yes, the inside of a RL glass surface reflects about the same as
> > the outside, sometimes a bit more reflective, since grime can
> > build up on the outside, but not on the inside.
>
> Are you sure?  A watersurface seems a lot more reflective from underneath
> the water than from above the water. Could be an optical illusion though.
>
> <snip>

http://en.wikipedia.org/wiki/Total_internal_reflection

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