September 1932
J. A. Purves drives a Dynasphere spherical car, an automobile shaped like a giant radial tire. Mr. Purves was the vehicle's inventor.
Image: Hulton-Deutsch Collection/CORBIS
The bicycle had its origins in 1817 in the Velocipede, a powerless wheeled frame which the rider sat astride. The first reliable report of self-propulsion by means of pedal power dates to the early 1860s.
Almost immediately inventors were attempting to do away with the second wheel, and in 1869 four different machines appeared, one of them the subject of the first monowheel patent
Why build a monowheel? Working with a single wheel could result in a more efficient mode of transport, as would the associated reduction in size, weight, and resistance. For some inventors, here was a new and simpler form of mechanised locomotion. For others, the monowheel was a toy, a novelty - albeit one with a very high thrill factor Read more...
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