I assume then that this is a patented device ...as far as you turn it both ways while holding the collar and it only spins in one direction? Still seems to be magic.:confused:
After seeing the animation part (around (:28 seconds) of the video of the screwdriver in action, I am still left with the physics question as to how this gearing is accomplished. See video below:
Is this a new method of gearing unknown before now or has their already been this type of...