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Inmotion Electric Unicycle In Combat
For obvious reasons, I'm unable to resist any stories about single-wheel vehicles.
This tiny vehicle gives soldiers a huge advantage on the field. pic.twitter.com/UgpoMAbY0G
— Science Postcard (@Sciencepostcard) December 8, 2025
Fans of science fiction Grandmaster Robert Heinein's 1940 classic The Roads Must Roll recall the tumblebug:
Gaines and Harvey mounted tumblebugs, and kept abreast of the Cadet Captain, some twenty-five yards behind the leading wave. It had been a long time since the Chief Engineer had ridden one of these silly-looking little vehicles, and he felt awkward. A tumblebug does not give a man dignity, since it is about the size and shape of a kitchen stool, gyro-stabilized on a single wheel.
(Read more about Robert Heinlein's Tumblebug.)
Here's what they thought it would look like in 1940:
((Tumblebug illustration from 'The Roads Must Roll' by Robert Heinlein)
Scroll down for more stories in the same category. (Story submitted 12/3/2025)
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Related News Stories - (" Vehicle ")
Inmotion Electric Unicycle In Combat
'It is about the size and shape of a kitchen stool, gyro-stabilized...' - Robert Heinlein, 1940.
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I might also be thinking of K-9 from Doctor Who.
