I’m not sure if I’m watching a magic trick, or an invention that will make the cigar-chomping 64-year-old next to me the richest man on the planet. Everything that goes into Frank Pringle’s recycling machine—a piece of tire, a rock, a plastic cup—turns to oil and natural gas seconds later. “I’ve been told the oil companies might try to assassinate me,” Pringle says without sarcasm. (via PopSci’s Best of What’s New 2007)