Scientists have figured out how to make a fabric that generates electricity when the wearer moves around. They embedded pairs of tiny zinc oxide nanowires into the fabric, coating one of each pair with gold. Then they put the fabric into a warm bath of reactive solution for 12 hours and watch the wires multiply. Really! When the gold and the zinc oxide bristles brush against each other they generate electricity, theoretically enough to power “a small iPod” or charge a cell phone battery. If you have a large iPod you may have to wear two shirts. One big problem is that zinc oxide degrades when it gets wet so you couldn’t wash your Duracell shirt. Not exactly what you’d call clean power.