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Unformatted text preview: Solution: As waste travels through the sewers the flow of liquid would spin turbines connected to a generator which would create energy that might make up some of the energy it takes to get rid of waste. Place energy producing units on exercise equipment that requires movement. Solution: Turbines, pumps, and other mechanisms can be placed on objects such as treadmills, stationary bikes, ellipticals, and stair masters that would produce electricity and could provide some power for the gym....
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- Spring '10