December 2005 Alt-Photo-Process-L: RE: Image formation in gum

From: Kate M ^lt;kateb@paradise.net.nz>
Date: 12/16/05-12:42:55 PM Z
Message-id: <000601c60270$88fd6b60$9c35f6d2@kateiwpiarptn6>

The bottom-up effect is strange indeed, perhaps it is produced by reflection
on the back face, as Jack suggested. I'll have to control the experiment
much better if I want serious conclusions to be extracted.

Could this hardening be caused by heat rather than light? The black surface
would tend to store and then radiate heat, rather than reflect light......

Just an idea
Kate

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Received on Fri Dec 16 12:43:15 2005