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 Air-purifying Billboard Does The Work of 1,200 Trees A New Type of Axe Shows Us an Easier and Smarter Way to Chop Wood Scientists Create a Tractor Beam on Water Wii Remote Hacks Add This Bottle to Your Zombie Apocalypse Kit This Man Started The Video Game Console Business