Man climb Chicago's Wills Tower with experimental leg

  31-year-old Zac Vawter becomes the first person to climb 103 floors

 Amputee Vawter was wearing an experimental prosthetic leg controlled by his mind Sunday when he participated in "SkyRise Chicago" climbing 103 floors on one of the world's tallest skyscrapers for a charity event. He completed it in 45minutes. As Vawter thought about climbing stairs, the motors, chains and belts in his leg synchronized the movements of its ankle and knee.
Brilliant tech!