A man who we have talked before named Mr. Blakemore has created a 3D printed device that takes wind power and stores it in gravity. This device, while very small, probably can't provide for very much use, but if it is scaled up it could become quite the revolutionary energy collecting and storage device. The design for it has been open source and made available for all to download. Read and see more at: http://3dprint.com/87346/3d-printed-...nergy-gravity/