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 Flexible Material Works as a Speaker See the World’s First HOLOGRAM Protest in Spain This billboard kills mosquitoes New Technology That Creates Textures on Flat Screens 700 TB of Information Stored in One Gram of DNA Hovercraft Meets Aircraft