We walk here, we walk there, we walk everywhere. Maybe you’re headed to work or to lunch in a busy city. You’re expending energy, and the exercise is good for you. But what if, on top of that, we could recapture all that freely supplied energy and convert it to usable electricity?
This is a real thing. Systems have been installed in dozens of countries. Check out this video. And why stop there? You could put them in discotheques and harness that fancy footwork to power the strobe lights. Or build them into playground hopcotch grids. When you start thinking about it, the possibilities are endless.
But how does it work?
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