Each week our friends at Inhabitat recap the week's most interesting green developments and clean tech news for us -- it's the Week in Green. Inhabitat is always on the lookout for new and interesting innovations, but some of the things that flashed across our screens this week truly defy the rules of physics. Take, for example, the story of 51-year-old Chinese man Sun Jifa, who lost both of his arms in an explosion and built his own bionic hands out of scrap metal
