The Copenhagen Wheel wins the James Dyson competition

Christine Outram and a team of MIT students are the US winners of the James Dyson Award competition with their Copenhagen Wheel – a wheel that turns a regular bike into a smart, electric hybrid.
This teched-out wheel allows riders to capture the energy dissipated
when breaking and cycling and save it for when they need a boost.  Like
most cutting-edge technology, the Copenhagen Wheel is controlled through
a rider’s smart phone.