This is fantastic and the endless possibilites abound......
"Researchers at Princeton University have created a flexible material that harvests record amounts of energy when stressed. The researchers say the material could be incorporated into the soles of shoes to power portable electronics, or even placed on a heart patient's lungs to recharge a pacemaker as he breathes.
Flex your power: A Princeton researcher holds a square of silicone embedded with a ribbon of a crystalline material that generates an electrical current when flexed.
Credit: Frank Wojciechowski
The energy-harvesting rubber sandwiches ribbons of a piezoelectric material called PZT between pieces of silicone. When mechanically stressed, a piezoelectric material generates a voltage that can be used to produce electrical current; a current can also be converted back into mechanical movement."
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