Dancing all night can use up a lot of energy, or create it -- at least that's what a group of Dutch researchers hope when they're done with their Sustainable Dance Club. Based in the Netherlands, the researchers and architects are working on creating a club that will use solar power, wind turbines, low-energy-using LED lights, and rain water and clubgoers sweat (yes, you heard me correctly) to flush toilets. But the real innovation is to develop a dance floor that creates power out of the pounding feet of dancers. The dance floor would be embedded with sensors that would help generate electricity. For more information on this technique, check out the video that surfaced on YouTube. Who knew your awkward dance moves might be doing the world a favor, after all!