Giant Machines That Eat Garbage (and the People Who Feed Them)

Garbage disposal factories are the unsung heroes of the giant machine world. With everybody excited about Pixar's upcoming garbage robot flick Wall-E, it's time to meet some real-life garbage machines. Some are glistening high tech towers, like this waste disposal/power plant in Vienna. Others are surprisingly… » 2/08/08 2:00pm 2/08/08 2:00pm