Bionic man leaps tall building in at least 1,648 bounds

Zac Vawter just climbed 103 flights of stairs, and, boy, are his servos tired!

Vawter just successfully used a thought-controlled prosthetic leg to complete the SkyRise Chicago fundraising event in Willis Tower. His new limb, designed by various universities and the U.S. Army’s Telemedicine and Advanced Technology Research Center, allowed Vawter to scale 103 flights of stairs with 3,000 other climbers. And, unlike the prosthetics we saw at the Summer Olympics, this one actually moves and reacts to Vawter’s mental commands like a real limb or Luke Skywalker’s hand.

And, maybe next time, they’ll let him take the elevator.