At Inhabitat, we've always got an ear to the ground listening for the latest innovations in the world of green technology, but the world's best designs are often found in Mother Nature. From bullet trains to Velcro, this week we looked at the various ways designers have found design inspiration in nature to solve human problems. We also looked at some of the ways scientists and entrepreneurs are finding new ways to harness the power of nature. One such example is the Sunportal, a new technology that uses pipes to deliver daylight anywhere in a building. German entrepreneur Gregor Schapers set up a solar oven system in El Sauz, Mexico that is being used to produce tortillas. And after a year sailing the seas, a wave-powered robot completed its journey across the Pacific Ocean this week, setting a new world record in the process.