Researchers have found a way for LCD screens to charge using solar power, indoor light and the devices' own backlight. That means in a few years, you may be able to recharge your phone by pointing it toward the sun instead of plugging it into the wall. Guest host John Ydstie talks to the lead UCLA researcher, Yang Yang.
Solar Charging Phones Without A 93-Million-Mile Cord
By NPR Staff • Aug 21, 2011