Today I Learned
WiseBeginning
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1y ago
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97%
TIL: Most glass used today is float glass
en.m.wikipedia.orgLiquid glass is poured over a bath of liquid tin where it floats on top, gradually cooling until it can be lifted off, annealed to prevent cracking, cut and packaged.
Also, this all has to be done without oxygen, because tin dioxide will stick to glass
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