Here's the US National Winner: the Copenhagen Wheel. Christine Outram and a team of MIT students invented of a wheel that turns a regular bike into a smart, electric hybrid. The Copenhagen Wheel allows riders to capture the energy dissipated when breaking and cycling and use it when they need it, like when they're biking up a hill. Photo 1 of 11 in James Dyson Award Finalists by Jaime Gillin

James Dyson Award Finalists

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Here's the US National Winner: the Copenhagen Wheel. Christine Outram and a team of MIT students invented of a wheel that turns a regular bike into a smart, electric hybrid. The Copenhagen Wheel allows riders to capture the energy dissipated when breaking and cycling and use it when they need it, like when they're biking up a hill.