Re: [at-l] PB Question

I believe glass is a liquid at room temps - just highly viscous - but still a
liquid. Cathedral windows from the Middle Ages show a thinning or hole in the
center where the glass has flowed down and towards the edges.

"Charles P. Copeland" wrote:

> ...Glass "freezes" at about 1000 degrees F but it's not exactly "frozen".
> It
> still moves - but very, very slowly.

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