The Dynasphere was a monowheel vehicle design which was patented in 1930 by Dr J. A. Purves. Purves’ idea was inspired by a sketch made by Leonardo da Vinci. The vehicle had a top speed of 30 mph. – WTF Fun Facts
Source: Dynasphere – Wikipedia
The Dynasphere was a monowheel vehicle design which was patented in 1930 by Dr J. A. Purves. Purves’ idea was inspired by a sketch made by Leonardo da Vinci. The vehicle had a top speed of 30 mph. – WTF Fun Facts
Source: Dynasphere – Wikipedia