Discover the Ryno Microcycle, a unique single-wheeled electric vehicle designed for personal transportation. Watch as a rider ...

Add Yahoo as a preferred source to see more of our stories on Google. A woman travels down a street on an electric unicycle. (Jim Henderson/Wikipedia Commons) Q: I saw an electric unicycle on a city ...

Ferdinand Porsche, it seems, was always ahead of the curve. He conceived one of the earliest electric cars back in 1900, which later added a gas engine to compensate for its primitive lead batteries.

Q: I saw an electric unicycle on a city street violating various traffic laws. I looked up what I saw online, and some of these unicycles have top speeds of over 50 mph. Do you have thoughts on what ...