A Japanese research group is working on a new technique that could triple the output of wind power generators. Called the wind-lens turbine, it gathers the wind in a way similar to the way a lens concentrates light. But what exactly is a wind-lens turbine? It's simpler than you think, but you'll have to tune in to find it out. Tests using the turbines have already started out at sea in preparation for future widespread use. Effective use of wind around Japan's coast could even potentially provide more energy than Japan currently uses. Tune in to find out about the latest developments in this cutting edge technology.