ON New Year's Eve I saw a program that took energy from stationary bikes and used it to power the ball drop in Times Square. What is someone used that same concept to power a gym? This could be used on treadmills, spin cycles, stationary bikes, row machines, and eliptical machines. It would be nice to have the device built into the equipment but people will not be willing to purchase new equipment up front, so it would need to be some type of enhancement that could be added to an existing...