These Window Curtains Use Sand When you see it you will ask yourself why you didn’t invent it and why was this not commercialized before. Facebook Prev Article Next Article Inventions Checkout these cool gadgets... Related Posts Putting Out Fires With Sound – DARPA Another Look at the Magic Morphing Table New Technology Used to Predict Landslides Jamie Hyneman’s new project for VR, Electric Shoes 5 Inventions That Are Changing the World Right Now Graphene Ink Will Let Us Print Circuits on Anything