624513 external_news 1565802773 1565802988 The plastic gizmo in Zhong Lin Wang’s hand doesn’t look like tomorrow’s solution to our looming energy crisis. It’s about the size and shape of a small grapefruit, but smooth and translucent. As he shakes it, a smaller ball inside bounces around freely....We're in a windowless basement room on Georgia Tech’s Atlanta campus. A trio of fresh-faced researchers stand nearby in white lab coats, watching and smiling. One holds a keyboard, and another a piece of red and yellow fabric. “In our environment, everything is moving, everything is changing,” Wang says, still shaking. “It’s all energy, and so much is wasted.” He wants to do something about that. For the last decade and a half, Wang, an electrical engineer and nanotechnologist, has sought ways to scavenge energy from the movements of ordinary life.

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