It is a cool idea. The sOccket soccer ball with a battery and a generator inside, and 15 minutes of play produces enough to illuminate a small LED for three hours .
"Early prototypes of the ball use an inductive coil mechanism similar to the technology found in shake-to-charge flashlights. The movement of the ball forces a magnet through a metal coil that "induces" voltage in the coil to generate electricity. For each 15 minutes of play, the ball can store enough energy to illuminate a small LED light for three hours. " |
