In this Thursday, Dec. 12, 2013 photo, Assaf Biderman, co-inventor of the Copenhagen Wheel and Associate Director of the SENSEable City Laboratory at MIT, unpacks his bag after his late-morning ... more 
In this Thursday, Dec. 12, 2013 photo, Assaf Biderman, co-inventor of the Copenhagen Wheel and Associate Director of the SENSEable City Laboratory at MIT, unpacks his bag after his late-morning arrival at Superpedestrian, his venture-backed company in Cambridge, Mass. The Copenhagen Wheel is a human/electric hybrid bicycle engine built into a bicycle's back wheel. Bidermana's day actually began at 3:00 in the morning when he participated in a European teleconference. (AP Photo/Stephan Savoia) less 
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Associated Press | Photo By Stephan Savoia
Wed, Dec 18, 2013 10:00 AM EST