Wow - 729 Miles Per Hour - past the speed of sound ????
.... (I saw the speed first, and thought he was faster than sound before reading the text for the video ... )
At 0°C is ρ0 = 1.293 kg/m3, Z0 = 428 N·s/m3, and c0 = 331 m/s
At 15°C is ρ20 = 1.225 kg/m3, Z20 = 417 N·s/m3, and c20 = 340 m/s At 20°C is ρ20 = 1.204 kg/m3, Z20 = 413 N·s/m3, and c20 = 343 m/s At 25°C is ρ20 = 1.184 kg/m3, Z25 = 410 N·s/m3, and c25 = 346 m/s
729 mph == 325.892 meters/secon
At -10 C - speed of sound is 727.4 mph - So, it was CLOSE - if he did, in fact, break the speed of sound.
Not sure, yet, what the temp was at the altitude where he hit 729. http://www.sengpielaudio.com/calculator-speedsound.htm
Wonder if there was a Sonic Boom audible to any on the ground from his jump ?
Felix Baumgartner: watch the jump
Felix Baumgartner, the man who tried to break the world's freefall record by jumping from 23 miles above the earth, breaking the sound barrier, has jumped from space.
http://www.telegraph.co.uk/science/space/9608140/Felix-Baumgartner-watch-the-jump.html
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