Together with colleagues from the USA, scientists from the University of Bonn and the research institute Caesar in Bonn have used nano-structures to construct a tiny machine that constitutes a ...

At first glance, the mono wheel looked like the next bold leap in personal transport, but its history quickly revealed why it never caught on. We traced the idea from its 19th-century origins through ...

The monowheel—a bizarre, one-wheeled vehicle that places its rider inside the wheel itself—has captivated inventors and daredevils for over a century. Yet despite scattered fascination, this machine ...

A woman travels down a street on an electric unicycle. 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 ...

The earliest evidence of the invention of the wheel pops up around 5,500 years ago in Uruk, ancient Mesopotamia, which has to go down as the most innovative society in human history. These guys, best ...

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.