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 Portable Washing Machine That Doesn’t Need Electricity Intelligent Speed Bumps Work on Newtonian Fluids Fish Elevator – Koi Fish Skyscraper In a Koi Pond Sensor Tech Brings Gesture Based Computing To Everyday Objects Video Advertisement In A Magazine? Kingii – The Most Compact Water Floatation Device