DARPA has put out an RFI for something called Power Skin. The technology is conceived as a structural material that would provide "its own day and night power to be used as an independent power source and, simultaneously, serve as the structural material" for robots (see our conceptual rendering above) and unmanned aerial vehicles. Ultimately, the military-industrial complex would like to see you develop something that would allow the aforementioned UAVs "indefinite flight endurance," although they'd be totally into it if you could demonstrate continuous flight for a mere four days. We'r
