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Piezoelectric Tennis Rackets

morcheeba writes "EETimes has an article on a piezoelectric tennis racket made by Head Sport AG. It uses piezoelectric fibers to damp vibrations and, due to regulations, it doesn't contain a battery. Although it's been out a while, it's now gaining credibility with professionals and has made it into the quarterfinals of the French Open."

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  1. This is how it works by ehiris · · Score: 3, Informative

    Both the Intelligence and conventional rackets deflect backward somewhat upon ball impact. With a conventional racket, the ball leaves the stringbed before the racket returns to its normal position. The Intelligence, with its active electronic microchip system, creates a counterforce that deflects the racket slightly forward as the ball leaves the stringbed. The net effect is a 50 percent reduction in vibration.

    Pictures and a more detailed description can be found here