Chuck Yeager in 1948. The previous year, he became the first pilot to break the sound barrier when he reached a speed of 700 miles per hour in a Bell Aircraft X-1.Credit...Associated Press
  Air Force legend Charles Elwood “Chuck” Yeager turned 93 this year, but don’t let that milestone fool you into believing that he’s too old to be tech-savvy. A couple of years ago he started to tweet about his exploits during his long flying career, which spanned more than sixty years. Reading...

U.S. Air Force Capt. Charles E. "Chuck" Yeager's signature inside the cockpit of the Bell X-1 "Glamorous Glennis."  The signature is dated the same day as his record-breaking flight of October 14, 1947 when the Bell X-1 became the first airplane to fly faster than the speed of sound. Yeager...