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Took me a long time to realize the sound barrier could vary from 1061 kph to 1235 kph... as you say, according to altitude and temperature... because temperature varies according to altitude ! Pretty weird to think about that fluctuation between 35 000 feet and 50 000 feet.It just feels like the rocket equation applied to Earth: as if it wasn't tedious enough, plus chemical rockets, planet Earth makes it even more of a PITA !Musk is kind of right when he says we are living on the "wrong" planet. For aerospace at least - as a human being I wouldn't swap it for Venus...
Took me a long time to realize the sound barrier could vary from 1061 kph to 1235 kph... as you say, according to altitude and temperature... because temperature varies according to altitude ! Pretty weird to think about that fluctuation between 35 000 feet and 50 000 feet.
It just feels like the rocket equation applied to Earth: as if it wasn't tedious enough, plus chemical rockets, planet Earth makes it even more of a PITA !
Musk is kind of right when he says we are living on the "wrong" planet. For aerospace at least - as a human being I wouldn't swap it for Venus...
