What about an electric skateboard with two wheels that can spin on a dime? See Emanual and other self-balancing personal electric vehicle designs here.

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Justin Lemire-Elmore

Recently stepped out of Engineering Physics at the University of British Columbia in order to pursue a vision of electric bicycles, scooters, and skateboards taking over the streets of Vancouver. Used to be a pyromaniac, got into electronics to synthesize oxidizers for rocket fuel via electrolysis. That in turn lead to an interest in power electronics, motor control, and now lightweight electric vehicles.