Dichromate in reverse Was: Re: A Dumb Gum Question?

Luis Nadeau (nadeaul@nbnet.nb.ca)
Sun, 22 Jun 1997 19:36:42 -0300

At 2:31 PM -0600 97/06/22, Richard Sullivan wrote:

...
>This sounds to me like an off-line comment I made to Judy S. about some
>dichromate that I had sitting on a shelf that got sunlight for part of the
>day for several years, and in a clear glass bottle at that. I used it and
>it worked in reverse, I got a positive image, that is, a negative from a
>negative. I threw it out before I really understood the implications of
>what I had. I thought that it had gotten contaminated, which it may have
>as well. What you are saying makes sense.
>
>This looks like a possible area of exploration.

Old dichromate working in reverse?

What's wrong with this picture? I wanna know more about that.

Luis Nadeau
NADEAUL@NBNET.NB.CA
Fredericton, New Brunswick, Canada