Felix Baumgartner became the first person in the world to break the sound barrier. The sound barrier is 1110.45 kilometres per hour (690 miles per hour). On 14 October, 2012, he skydived from an altitude of 38.62 kilometres (24 miles) and was in a free fall for more than 4 minutes, and then he hit the supersonic speed of over 1342 km/h or Mach 1.24.
