Phones charged by dancing

Orange and GotWind, dealing with recharging energies, has announced their latest prototype of chargers, which uses the motion energy of the human body for charging the phone. Dance Charge, pictured below, is a working prototype, which uses kinetic energy, gained by dancing or other intensive motion, for charging. Those interested can test it between June 27 and 29 at the Glastonbury Festival. The 108 x 63.5 large accessory, weighing 180 grams, comes with a neoprene band that can be attached to the biceps, so it has an effect similar to a sporty MP3 player. The device, built of magnets, coils and weights, gains kinetic energy from the hand's motion, just like some watches do.