What a nightmareish looking machine! Imagine sticking your head out the tent door and seeing that thing working toward you.

http://www.youtube.com/watch?v=W1czBcnX1Ww

It sounds like it's running on a chainsaw engine. What's really amazing is it's sense of balance and the fact that it reacts so quickly. I could see benefit in a search and rescue operation. Or the next rover to Mars.
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paul, texas KD5IVP