NYTimes.com:
It is not easy to reinvent the wheel, but researchers at the
Massachusetts Institute of Technology are giving it their best
shot.The
Senseable
City Laboratory at MIT has designed a wheel called the
Copenhagen Wheel that captures the kinetic energy released when
a rider brakes and saves it for when the rider needs a
boost.The Copenhagen Wheel was unveiled yesterday at the
COP15 United Nations Climate
Conference.
