A crash course in changing the world.
Something I use every day is my iPhone. Currently, to charge it, I need to plug it into an electrical outlet. Something I would invent would be a way to charge a phone by using a piece of equipment like a treadmill or stair climber at the gym. Simple plug your phone (or other device that needs to be charged) into the piece of equipment and run, step, walk, etc. to a higher charge on your device! The energy generated from the machine would charge your device while you work out. Great motivator to work out, too!
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