Useless Perpetual Devices A useless device is like a time loop and it just wants your attention. It is there just so that you get hypnotized. Facebook Prev Article Next Article Machinery Checkout these cool gadgets... Related Posts Pancake Stacking Machine Is Just Amazing Laser Rifle That Can Cut Through Metal This Coffee Art Printer Puts Baristas To Shame Yamaha’s Musical Designers Create Some Interesting Two-Wheeled Concepts Science and Post-It notes power this Rube Goldberg machine Cutting Through Metal Like Butter Is So Satisfying