Re: pinhole bending glass

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From: Paul Doherty (pauld@exploratorium.edu)
Date: Thu Sep 23 1999 - 18:10:31 PDT 

Message-Id: <l0311072eb4107f9d6b01@[192.174.2.173]>
Date: Thu, 23 Sep 1999 17:10:31 -0800
From: Paul Doherty <pauld@exploratorium.edu>
Subject: Re: pinhole bending glass

Hi Kim

The warping of the glass doors was due to the elasticity of glass. Some
glass can be deformed and held in its deformed state by the bent frame of
the door. Release the bending forces and the glass will go back to its
original shape. No flow occurs. (Compress a spring then release it and it
returns to its original shape.)

Paul D

Paul "But it is more complicated than that!" Doherty,
Senior Staff Scientist, The Exploratorium.
pauld@exploratorium.edu, www.exo.net/~pauld

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