Re: Gum hardening: top down? losing patience

I
Sandy

What I remember is your comment as to a complete lack of understanding as to
the behaviour of dichroamted colloids. Given this correspondence on 'top
down', I support your view..

We both know that there are many variables involved in making gum prints or
carbon prints. Katherine's experiment did not take these into account . That is
why her experiment yielded no useful results.

Experiments need to be very carefully considered if they are to be of any
use.

We really do not need to know how many angels can dance on the head of a pin.

Terry

In a message dated 11/4/06 1:37:53 pm, sanking@CLEMSON.EDU writes:

>
> Terry,
>
>
>
>
> Actually the only comment I withdrew was that the test I proposed would be
> simple. It would be simple enough if the only issue were to prove that
> colloids harden the surface down, but where the goal is to actually make prints the
> matter is quite a bit more complicated as one must balance several different
> things, including thickness of coating, concentration of pigment, and
> strength of the sensitizer. And also, printing  contrast of the negative. As you
> know, each one of these variable is very important for making good carbon
> tissue, which is similar at this point to what Katharine wants to do.
>
>
>
>
> Sandy
>
>
Received on Tue Apr 11 07:53:26 2006