A curious single-wheel monorail, built using Meccano by extraglide1976, has appeared online and sparked discussion on the potential for such transport systems.
Although several countries have monorails, none currently use the single-wheel design.
The inventor of such a system was Louis Brennan in 1910, but it failed commercially.
Modern technologies such as sensors, motors and microcontrollers could make such a system feasible, and it could be used for freight in urban areas, or for recreational purposes.
Comments on the video suggest that the inventor could seek crowdfunding to develop the idea further.
