Giz Explains: Batteries, Tech's Choke Point

The biggest chokepoint in technology is a single roadblock: batteries. Amidst all of the amazing advances in the last 50 years, battery tech has remained fundamentally unchanged, engineers incrementally squeezing out a few extra drops of power from old tech each year. With better batteries, you wouldn't just be able to … » 8/27/08 2:00pm 8/27/08 2:00pm