CHICAGO Zac Vawter considers himself a test pilot. After losing his right leg in a motorcycle accident, the 31-year-old software engineer signed up to become a research subject, helping to test a ...

Despite losing most of his right leg in a motorcycle accident, Zac Vawter (31) intends to climb all 103 flights of stairs at Chicago's Willis Tower this Sunday. He's been helping researchers at the ...

Zac Vawter, a 31-year-old who lost his right leg in a motorcycle accident, became the first person to scale the 103-story Willis Tower in Chicago with a mind-controlled robotic leg. The artificial leg ...

CHICAGO (AP) — The metal on Zac Vawter's bionic leg gleamed as he climbed the 103 floors of Chicago's iconic Willis Tower, becoming the first person ever to complete the task wearing a mind-controlled ...

A Washington man will be trailblazing a path to the top on Sunday. Thirty-one-year-old software engineer Zac Vawter is attempting to climb 103 flights of stairs to the top of Chicago's Willis Tower, ...

CHICAGO – The metal on Zac Vawter bionic leg gleamed as he climbed 103 floors of Chicago’s iconic Willis Tower, becoming the first person ever to complete the task wearing a mind-controlled prosthetic ...

As part of our ongoing summer series, we will be looking back at some of the most colourful and extraordinary proposals pitched in the UAE and the wider Gulf and investigating what happened to them.

CHICAGO (AP) — Zac Vawter considers himself a test pilot. After losing his right leg in a motorcycle accident, the 31-year-old software engineer signed up to become a research subject, helping to test ...