
Zhong Lin Wang of the Georgia Institute of Technology has created a prototype nanogenerator. Every time a nanowire is flexed it emits a piezoelectric charge. That’s an electrical discharge that is created when materials are put under mechanical stress. The nanowires would not impede or constrain people. A nanometer is just one billionth of a meter. A human hair is about 100,000 nanometers thick.
One possible uses of the technology that Wang foresees is for soldiers. Nanogenerators in their shoes could produce electricity as they walk so that they would not have to carry batteries to power their devices.




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