3 ms·
Glass isn't a fluid, it's a solid. But it isn't crystalline either as you said. Found a video that explains it well: https://youtu.be/c6wuh0NRG1s https://youtu
by RGBCube 3y ago
Glass isn't a fluid, it's a solid. But it isn't crystalline either as you said.
Found a video that explains it well: https://youtu.be/c6wuh0NRG1s https://youtu.be/c6wuh0NRG1s
- denton-scratch 3y agoHmmm. Wikipedia agrees with you that it's a solid. But the explanation of why it's not a fluid is handwavey; their strongest claim seems to be that experiments show that it doesn't flow on any reasonable timescale. But presumably that's at standard temperature and pressure; the article doesn't mention the conditions. https://en.wikipedia.org/wiki/Glass#Formation_from_a_supercooled_liquid https://en.wikipedia.org/wiki/Glass#Formation_from_a_superco... Like, glass is definitely liquid if you get it hot enough. But it doesn't have a melting point; there's no discernible transition from hot glass to cold glass.
- RGBCube 3y agoYes, it doesn't have a melting point because the molecules slowly fall apart as glass gets heated; the hotter it gets, the liquider it gets (up to a specific level). Glass at room temprature has enough bonds to stay solid, though.