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I was challenged by VW to make electricity to support their electric Supercar at Pike's Peak. The CRUSHED the course record by 15 seconds in the race. I got a little help from William Osman and some kids and without hurting any feelings one was better than the other.
Summary: I was challenged to charge VW's electric supercar for the upcoming Pike's Peak race. I first built a lemon battery with William Osman. Then we tried a regenerative zipline. Then we tried solar power with a twist.