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."
....sparks fly when the score is love, love.