Re: pinhole what IS glass

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From: Gary Alexander Horne (gary.horne@excite.com)
Date: Wed Sep 29 1999 - 07:30:35 PDT 

From: "Gary Alexander Horne" <gary.horne@excite.com>
Subject: Re:  pinhole what IS glass
Message-Id: <938615435.24209.759@excite.com>
Date: Wed, 29 Sep 1999 07:30:35 PDT

There is a simple explanation for why church windows were thicker at the
bottom. At the time, window makeing was such that it was very unlikely that
a pane would be made of uniform thickness. Without precise instruments, one
end was bound to be thicker. Simply, that end was always installed down.

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