Speedy science project a winner for mobiles
SICK of waiting hours for your mobile to charge? Then don't.
An 18-year-old high school student from America has been awarded $50,000 at an international science fair for creating an energy storage device that could be fully charged in less than 30 seconds.
The device is a super capacitor, meaning it can pack a lot of energy into a tiny space, charges quickly and holds its charge for a long time.