How is glass made? - Glass Explained

How is glass made? How are glass bottles made? And window panes? Basically all commercial glass is made with this process. There will be some differences such as the forming or the composition of the glass. Because of these differences in composition, recycled glass is always sorted by color.

Glass is a non-crystalline amorphous solid. So yes, it's a solid. Depending on the chemicals it is mixed with, it can have different properties. There are also films and other post-production treatments that can change the property of the glass. IE: Turning it into a mirror or one-way window.

Fiberglass is indeed made using glass. By melting it and stringing it into fibers and then coating it in a plastic resin. It doesn't conduct (it's an insulator) and gets harder over time.

The argument that glass is a fluid because in old windows they're thicker at the bottom is a false one. Old glass was hand-made, by spinning it into a disc and flatten it out into a square shape, it was imperfect. When cut to fit into a window, they were placed with the thickest side down, to provide stability and avoid too much water accumulating in unwanted places.

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Sources:
https://en.wikipedia.org/wiki/Glass
http://www.explainthatstuff.com/glass...
https://en.wikipedia.org/wiki/Toughen...
https://en.wikipedia.org/wiki/Glass_c...
https://en.wikipedia.org/wiki/Gorilla...
https://en.wikipedia.org/wiki/Pyrex
https://en.wikipedia.org/wiki/Sodium_...
https://en.wikipedia.org/wiki/Fiberglass