A Penny-Sized Nuclear Battery Could Keep Going, and Going...

Tired of cellphones and other electronic gadgets that run out of juice too quickly? Then you can happily look forward to further developments from the lab of researcher Jae Wan Kwon, who has developed a long-lasting nuclear battery the size and thickness of a penny. In time, Kwon hopes to get the size down so that the battery is no thicker than a human hair. The batteries pose no danger of a nuclear meltdown, Kwon notes.