Devil's wheel

It begins by spinning slowly and increases its speed to make riders slide off the platform.

An operator controls the speed of the platform, sometimes slowing it down to give participants the opportunity to re-position themselves toward the center.

An added feature was the mild jolt of electricity transmitted through the metal screws holding the platform down.

Riders had to contend with small electrical shocks while trying to hold on to the flat spinning surface.

A smaller version of the Devil's Wheel was displayed at EXPERIMINTA Science Center FrankfurtRheinMain in December 2011.