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Old 03-14-2021, 03:34 PM
David Hopman David Hopman is offline
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physicists on mystery-why does glass exist?

https://www.wired.com/story/physicis...uN1p7y3UQ8P77o
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Old 03-16-2021, 10:42 AM
Paul Thompson Paul Thompson is offline
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Quote:
Glass is a liquid in suspended animation, a liquid whose molecules curiously cannot flow.
I thought the "glass is a supercooled liquid" theory had been largely discarded? And I don't think the process of plant amber hardening is the same as melted glass cooling. It seems like amber would harden via sublimation or evaporation.
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Last edited by Paul Thompson; 03-16-2021 at 10:48 AM.
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Old 03-16-2021, 12:59 PM
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Pete VanderLaan Pete VanderLaan is offline
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Why do these articles have to create such bad assertions.

"Other liquids, when cooled, more easily become glass. Silica, for example—window glass—starts as a molten liquid well above 1,000 degrees Celsius; as it cools, its disordered molecules contract slightly, crowding a bit closer together, which makes the liquid increasingly viscous. Eventually, the molecules stop moving altogether. In this gradual glass transition, the molecules don’t reorganize. They simply grind to a halt.
*********


This is just bullshit.
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Old 03-16-2021, 02:50 PM
Larry Cazes Larry Cazes is offline
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Wired.com is NOT what I would call a credible source on Material Science
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Old 03-16-2021, 04:45 PM
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Pete VanderLaan Pete VanderLaan is offline
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I think it potentially to be far more interesting is looking at why materials DO BECOME glass. Silica on it's own has a rough road. It needs modifiers to lower the temps to make the solutions possible and THEN it needs stabilizers to stop the action.
THEN, it need, under enormous pressure to be slow cooled so that the material just formed can have the huge pressure, measured in 1'000's of pls per sq inch pressure, relax so that the material formed is stable.

Comparing it to amber is just misguiding. They don't really have that much in common, besides clarity, a nice thing. I like fulgurites myself.

Your pissy management.
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Old 03-16-2021, 08:16 PM
Brian Bradshaw Brian Bradshaw is offline
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Doesn't anybody read Scholes anymore?
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Old 03-16-2021, 10:13 PM
David Hopman David Hopman is offline
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The article is originally from Quanta magazine and reprinted by Wired.
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