Sure, you can make a ping-pong ball float just by blowing at it through a drinking-straw, but wouldn’t a ball-levitating robot be so much more fun? Luckily for us, University of Illinois grad students Aaron Becker and Robert Sandheinrich answered “yes” to this question, and built this incredible machine:
It’s called the Robo-Air Blower, and while [...]
Source: http://www.wired.com/gadgetlab/2011/01/air-blowing-robot-makes-ping-pong-balls-jump-through-hoops/
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