From:	Flo <florian.goll@******.UNI-WEIMAR.DE>
Subject:	Re: Ruthenium Polymers
Date:	Thu, 29 May 1997 19:18:12 +0200

> >Ruthenium polymers are expensive compounds for a very complex job. For
> >the
> >much simpler task of changing car color, it should be possible to find
> >some
> >much cheaper, sturdier compound that will change color under the right
> >stimulus -- a mild electric current, for instance.
>
> Ummm...isn't that what the ruthenium polymers do? Generate a change in
> the reflection of chromatic wavelengths of light when subjected to a
> slight electric current? I don't know of too many other things that do
> the same...

Well...thats not totally correct! Think of glass getting Darker in
Sunlight (higher energy) Or of color changes with the change of
temperature. All thats got to do with Energy. In Germany scientists made
special compound wich cost about a few Dollars per m2 wich change color
under electric current. Or think of LC-Displays. OK you can change the
color from blue to red, or yellow to black or so. But if you run away in
a yellow van and change it to blue... who will recognise it??? And by
the way... water solvent colors do the same. Paint your car, do the job,
get away and wash it!