Hugh Herr: The new bionics that let us run, climb and dance

TED 2014
Hugh Herr: The new bionics that let us run, climb and dance ( script)
Summary
The speaker whose legs are bionic has strong thoughts. He thinks that a human being can never be broken. Technology is broken or inadequate. By advancing technology, his own disability and others can be eliminated. It makes him create a company where studies new great technology: bionic.
Bionic means artificial body parts, especially electromechanical ones. This is completely different to conventional artificial legs. Bionic limbs have normal muscle functions or more than that. There is almost no the gap between disability and ability.
The great bionic legs are using three extreme interfaces which are mechanical, dynamic and electrical. Interface means a point where two systems, subjects, organizations and etc, meet and interact.
Mechanical point means how bionic limbs are attached to the human's biological body. It's used synthetic skins which are embedded sensing and new smart materials which can adjust voltage and change stiffness. It gives the bionic limbs greater ability to control and protect the biological joints from high impacts and degradation.
Dynamic interfaces relate why limbs move like flesh and bone. It attenuates the shock of the limb hitting the ground. It lets the bionic limb output high torques and powers to lift the person into the walking stride.
Electrical interfaces are how bionic limbs communicate with the nervous system. The electrodes are attached to the residual limb. It can measure the electrical pulse of muscles and communicate its pulse and movement desires to the bionic limb. The chips of the bionic limb are embedded in the capability that the missing biological is modeled. That is newly discovered what reflexes occurred and  how reflexes the spinal are controlling the muscles.  This is the system that using just the muscles in the residual limb, you who use this bionic limb can run, climb and dance.
Further, he and his company continue studying about this synthetic limb that move like flesh and bone but actually feel like flesh and bone.
He thinks that the people don't need to accept their limitations but they can transcend disability through technological innovation.
Words in this story
inadequate / lacking the quality or quantity required; insufficient for a purpose.
synthesis /syn·-the·-sis/ˈsɪn θə sɪs/noun/ putting together
synthetic /syn·-thet·-ic/sɪnˈθɛt ɪk/adj/ artificial
degradation / fall, shame.
reflexive / comeback, recovery
attenuate / reduce the force, effect, or value of.
authentic /au·-then·-tic/ɔˈθɛn tɪk/adj/ genuine, real
aesthetic /es·thet·ic/ɛsˈθɛt ɪk/ beauty.
residual / remaining after the greater part or quantity has gone.