If you've forgotten to charge your iPod or your cell phone and a power plug is nowhere in sight, a simple run could help you get out of the trouble. It all depends on whether a new technology being developed is successful though.

Every step you take can generate electricity. By packing 20,000 nanowires into three square centimeters, Georgia Tech scientists have developed the world's first gadget powered solely by piezoelectric materials.

A piezoelectric material when pushed or pulled creates a mild electrical charge.

Within three to five years piezoeleectric nanowires, woven into a cotton shirt or placed in a shoe heel, could charge a cell phone or laptop battery after even a short walk.

Now isn't that something? What will they think of next?

Naresh