Typically, Mother Nature decides when we get to see a rainbow. University professor and artist Michael Jones McKean didn't quite have that patience, so he made a solar-powered machine that makes two-story rainbows from collected rainwater.
McKean, a professor at Virginia Commonwealth University, has been conducting experiments on rainbows since 2002. He's finally getting the fruits of those labour in the form of some serious man-made rainbows.
His Rainbow machine is comprised of commercial jet pumps and custom-designed nozzles that spray a wall dense of water into the sky. It's like how you get a rainbow from the sprinkler in your backyard, just on a much more impressive scale.
McKean's current machine is a prototype for one he will install on the roof of the Bemis Center for Contemporary Arts in Omaha, Nebraska, this summer. It'll shoot two rainbows a day for 15 minutes, visible up to 300m away. And that machine will have the distinction of mimicking nature solely with the stuff nature provides—it'll spray collected rainwater and run off solar power. [Michael Jones McKean via Inhabitat]