Comment on Are Those Spidery Black Things On Mars Dangerous?parentComments−JonnieCache13yMach 1 where?−goodcanadian13yMach 1 always means the speed of sound in the local environment.−stephengillie13yOn Mars. Mach, the speed of sound (vibrations), varies with changes in heat, density, etc.
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Mach 1 where?
Mach 1 always means the speed of sound in the local environment.
On Mars. Mach, the speed of sound (vibrations), varies with changes in heat, density, etc.