Odd Dynasphere mono-wheel vehicle designed by Englishman Dr. J.H. Purves is demonstrated in Weston-super-Mare, England.

A "Dynasphere" mono wheel invention in Weston-super-Mare, England. A man sits in a Dynasphere designed by Englishman Dr. J.H. Purves. People stand beside the mono wheel. The unusual mono wheel is driven in the seaside town during a demonstration.