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<p>[QUOTE=&quot;-jeffB, post: 2205054, member: 27832&quot;]Actually, as it turns out, glass at normal temperatures <i>doesn&#039;t</i> flow. At least, <a href="http://www.cmog.org/article/does-glass-flow" target="_blank" class="externalLink ProxyLink" data-proxy-href="http://www.cmog.org/article/does-glass-flow" rel="nofollow">not according to the experts at Corning</a>. Old windows have uneven thickness because of the way they were manufactured. If stained glass flowed over centuries, the lead used to bind the glass in the windows would flow much more quickly -- it&#039;s something like a billion times less viscous than glass.[/QUOTE]</p><p><br /></p>

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