Photo: John Gress/Reuters
Zac Vawter, who lost his right leg in a motorcycle accident, celebrates with his father after becoming the first person to complete the 103-story climb to the top of Chicago’s Willis Tower wearing a bionic limb. He just has to think about moving and sensors in the 4.5-kilogram bionic leg pick up signals his brain sends to the amputation site. The high-tech prosthesis takes it from there, coordinating the movement of motors at the knee and ankle to produce a smooth gait.
If you are viewing this page with an iPad or iPhone, click here to launch the slideshow:
The Conversation (0)
