Re: Thermally sensitive stuff

["Paul Camp" <pjcamp@coastal.edu>]

> Kyle, Paul, et al,
>
> Could it be that the principle of your heat-sensitive cards and coffee cups
> is similar to that employed by Matchbox for their color-changer toy 
> cars?

Another example from the Kroger yesterday (and you really have to get 
some of this stuff) -- color changing Silly Putty. It is way cool.

> Am I correct in concluding then that this process is essentially different
> from that which produces the color changes in liquid crystal?
>
> Rosaline

Sounded like it might be but I really don't know enough about either 
to say for sure.

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