Nanogenerators to keep your gizmos charged forever

Can you imagine your MP3, iPod or the cell phone never displays a low battery warning? You don't need to pinch yourself, dear readers, as this is not a dream. Rather, it's a dream come true. A team of scientists has finally made it possible. Dr. Zhong Lin Wang, the lead scientist and his team at the Georgia Institute of Technology are planning to introduce their latest technological wonder