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 These Gears Are Synched at 4,500 RPM Laser Rust Removal is Very Satisfying to Watch Reinventing The Conveyer Belt Production of The Future – Concepts The SoundTank Will Blow Your Ears Off The Strangest Elevator In Italy