I thought of building one using an old bike in the center. Since it works off the main crankshaft I'll bet it wouldn't be to hard to pedal! Think the police would pull me over after leaving the local pub?
I found the one with the wave wing fairly interesting as it was turning the crank sitting in one place. Did you notice he was using a compressor and bottles to store some of the energy. One of them would actually drive a pin into the beach, basically stake itself to the ground, if it got to windy.
I was pretty amazed at the creativity and simply had to share the find.
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