'Green' energy needs a big leap
Friday, February 27, 2009 - 11:27
in Physics & Chemistry
Experts say scientific breakthroughs are the key to making renewable power sources cheap and easy to use. When Energy Secretary Steven Chu talks about how Americans can break their addiction to oil and coal, he starts with his hi-fi amplifier. It's so old that the on-off light burned out long ago. But inside lies a technology that -- in its day -- was as revolutionary as the changes needed to solve the nation's energy problems.