This machine completes one turn every 2.3 trillion years

You read that right, this machine takes 2.3 trillion years to complete a single turn. While it serves no practical purpose and we will be long gone well before it ever completes a full turn, it’s still very interesting.

This machine by Arthur Ganson just blew my mind: its engine runs at 200 revolutions per minute but the last gear of its 12-gear mechanism is locked to a block of concrete. It looks still but, in reality, it is moving. You just can’t see it because it completes one revolution every two trillion years. How the hell is this possible?