What is it?
A stunt usually recorded on video involving at least two people, a playground-sized roundabout and a small motor vehicle (moped, motorcycle, etc.). One individual presses the vehicle’s wheel against the outer edge of the roundabout’s platform and revs the engine. Individuals seated in the center attempt to withstand the increasing centripetal force as it spins faster and faster.
What are the dangers?
When powered by a vehicle’s motor rather than human push, the roundabouts gain so much momentum that individuals can lose consciousness in a matter of seconds. Unconscious participants often get injured when flung from the playground staple; some cases resulted in brain damage.