The Hugh Cherr builds next generation Bionic members, robotic additional members inspired by nature's own designs. The Cherr lost both his legs in a climbing accident 30 years ago. Now as head of the biomichanotronikis group at MIT's Media Laboratory, showcases his incredible technology in a talk that is both technical and deeply personal – with the help of pole dancer Adrienne Haslett-Davies, who lost her left leg in the 2013 Boston Marathon bombing, and dancing again for the first time on the stage of TED.