Science Museum The Impossible Balancer
Brand WOW Stuff
The Impossible Balancer is precision machined from a solid block of aluminium.
Pick it up by its 'stalk' and spin it with your thumb and fingers.
The Impossible Balancer will start tipping to one side and will eventually reach a point where it flips the other way up and starts spinning on its stalk!
If you spin the Impossible Balancer on a very polished surface, i.e a mirror, it will continued to spin for minutes.
Listen for the sound changing as it flips onto its end!