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By bored
#6586
A at-home multi-purpose fitness machine that generates electricity from the person using it. Every time you apply your energy to the exercise machine, the machine will generate power to a power supply. It gives people some incentive on trying harder and saving some money from the electricity bill.

Reward: recognition
By kellaholic
#7109
My friend did this for science fair. She connected an exercise bike to a generator 'er something and everytime you pedaled the bike, the TV would come on. Everyone was working out so they could watch Dr. Phil.
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