This has potential to be very cool
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The ?bot is called the Planar Elliptical Runner and can motor along at 10 miles per hour, which is faster than the average marathon runner.
However, if it was scaled up to human size the tiny terror could reach speeds of up to 30 miles per hour ? quicker than the 27.8 mph achieved by Usain Bolt during the 100 metres sprint at the World Championships in 2009.
Boffins at the Institute for Human and Machine Cognition in Florida designed the speedy droid to show how robots could walk and run on two legs ? just like humans.