Room temperature glass is not a liquid

I've said this before. Glass at room temperature is a solid. It shares some interesting characteristics with fluids, but it's a solid. It is not slowly flowing and that is absolutely not why old windows are thicker at the bottom.

It's more solid than lead.


Read this:

Does Glass Flow?

http://www.cmog.org/article/does-glass-flow

 and this

A Common Misconception

http://blog.cmog.org/2013/09/05/a-common-misconception/