We like to pay homage to Earth Day as much as we can (stretching it on to the next day and beyond) and so we give the stage to the inventor of the Segway, Dean Kamen. He has come up with a device that will turn any liquid into drinkable water and despite its huge non-prettiness and using cow dung as fuel, I think we all can appreciate that people will have access to clean water who didn't before. (Unfortunately, that means most of the world's population.)



