Moon question
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starsurfer
- Stellar Cartographer
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Moon question
Can you hear sound on the moon?
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neufer
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Re: Moon question
Click to play embedded YouTube video.
Through the ground, perhaps, ...very poorly.
Art Neuendorffer
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Chris Peterson
- Abominable Snowman
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Re: Moon question
There is a lunar atmosphere, so there are sound waves. Far below the human detection threshold, I'm sure. And I don't recommend removing your helmet to test that!
Chris
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Chris L Peterson
Cloudbait Observatory
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Chris L Peterson
Cloudbait Observatory
https://www.cloudbait.com
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neufer
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Re: Moon question
Note that the (noble gas: argon/neon/helium) lunar atmospheric pressure is only ~3×10−12 hPaChris Peterson wrote: ↑Mon Jul 16, 2018 2:11 pmThere is a lunar atmosphere, so there are sound waves.
Far below the human detection threshold, I'm sure. And I don't recommend removing your helmet to test that!
such that the gas mean free path is approximately equal to the diameter of the Moon itself
Under such circumstances an audio speaker can still generate pulses of gas atoms; however:
- 1) the pulses will only propagate at the fastest speed of the speaker diaphragm motion,
2) while the pulse structure will rapidly degrade at roughly the nominal speed of sound- (due to random gas particle motion).
Art Neuendorffer