Waterdrop Pixels: The Jeep Waterfall.

Hey, thanks ^g^

Both the 1996 Olympics show and the Geneve show were both from Professor Pevnick using the Graphical Waterfall he invented in 1979. He teaches art at the University of Wisconsin Milwaukee and has done some fabulous things with water art.

Saw that in the Geneva show last year. I think there is room for sound improvement : the water hitting whatever is down there is making a shower-hitting-the-plastic-bathtub kinda noise.
put your fingers in your ears and it's pretty cool to watch.

Two of these were used daily in Centennial Park, Atlanta, GA during the 1996 Summer Olympics. They showed, during one show, the recognizable symbols used for each of the summer olympic sports, as well as advertising logos.

It seems to be a bit noisy. I've seen something similar in an artmagazine. I think a german artist used it in an interactive installation. (I couldn't find a link, sorry.)
There are lots of experiments with alternative "screens".
May be not so spectacular like this "water-plotter" but pretty nice. Like projections on steam:
http://www.rueneuf.net/Images/steam_butterflies.jpg
(This was an interactive group of butterflies which flew away when you tried to "touch" them.)