Jeep's amazing "ink-jet" waterfall

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Jeep uses this waterfall for its displays. According to the waterfall's builder, the system works like an ink-jet printer, with 3,000 valves organizing the droplets via computer program into visible logos and other messages, which appear as the droplets descend 24-feet into a trough. Talk about attention-getting!"

I've seen this a couple of the past years at the Chicago Auto Show (2007 February 9-18). Impressive use of computer (maybe PLC) -controlled water valves.