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Article #23

Re: Nature of Glass

#23
From: Jeff Gates
Date: Thu, 29 Oct 1992 23:36
26 lines
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Christopher Scanlan <nuke@csd4.csd.uwm.edu> writes:

>you were talking about glass flow in windows.  In older buildings
>According to my ceramics professor, this is simply because that is
>how window glass was made when these buildings were built.  The
>plates of glass were thicker near the bottom.  If you actually
>work out the calculations for how long it would take for glass
>to flow to this extent it turns out to be several centuries.

Fascinating!  I wonder if anyone else can support these calculations.

Now, since the subject of this article was "the Nature of Glass",
I would like to see if I can start a bit of controversy on the net!

It is often said that
	" Glass is a liquid "
or that
	" Glass is a supercooled liquid "

I have my own opinions on this, but first I want to see what comes out.

|  jeff@minmet.uq.oz.au	       |  Jeff Gates
|			       |  Dept Mining & Metallurgical	       _--_|\
|  Ph. direct: +61 7 365 3726  |		     Engineering      /      B
|  Ph. Dept: +61 7 365 3738    |  University of Queensland	      \_.--\_/
|  Fax: +61 7 365 3888	       |  Brisbane   Qld   4072   Australia	    v
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References: <1992Oct29.183244.11883@msc.cornell.edu>

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From: jeff@mama.minmet.uq.oz (Jeff Gates)
Subject: Re: Nature of Glass
Message-ID: <jeff.720401812@mama>
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Organization: Prentice Centre, University of Queensland
References: <1992Oct29.183244.11883@msc.cornell.edu>
Date: Thu, 29 Oct 1992 23:36:52 GMT
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