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Is glass still considered a form of liquid? Think I remember reading something about that years ago.
by prox 2y ago
Is glass still considered a form of liquid? Think I remember reading something about that years ago.
- sparky_z 2y agoNo, that's a classic misconception. People claimed that windows "flowed" because really old ones were thicker at the bottom, but that was just how some old window glass was made.
- dasil003 2y agoYeah if you’re installing an uneven pane where would you orient the thick side?
- Hikikomori 2y agoThe bottom.
- gweinberg 2y agoI think the basis of the claim is that glass doesn't have the same kind of phase transition that a crystalline solid would. It just sort of gradually becomes more liquid-like as you heat it.
- s0rce 2y agoNo, its disordered (ie. not a crystal) but not a liquid, it won't flow like a viscous liquid.
- s0rce 2y agoMy comment was a bit over simplified, they do flow, but the time scale exceeds the entirety of human history [1]. [1] https://doi.org/10.1119/1.19026 https://doi.org/10.1119/1.19026
- maxbond 2y agoSimilar to the misconception that Earth's mantle is liquid. It isn't, but time is deep enough for solid rock to flow.