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Topic Title: sound in space
Topic Summary: can you hear it? why, or why not? serious question for the weekend...
Created On: 09/04/2021 04:54 PM
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 09/04/2021 04:54 PM
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StirfryMcflurry

Posts: 4456
Joined Forum: 08/17/2016

Discuss. & to the resident guy who knows a lot about everything (and thanks, btw) scom, what is your take?

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Low tide is the new high tide.
 09/05/2021 06:35 PM
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tom

Posts: 6995
Joined Forum: 07/25/2003

Sound is a mechanical vibration. Needs a medium to carry it, solid, liquid or gas. Light is electromagnetic vibration, carries great in a vacuum, ok in gas, fair in liquid, not so good in solids. Two astronauts floating outside the shuttle, shouting at each other, can't hear each other, until they touch helmets and the solids can carry the sound. Or when they put new batteries in their radio because radio waves are electromagnetic. Caveat, this is a pretty rudimentary explanation and there is somewhat more to it.

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 09/06/2021 09:26 AM
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CurtisEflush

Posts: 401
Joined Forum: 09/28/2012

Unless you're looking for trick answers, then generally no. If you're thinking of something that causes a listener to perceive some neurologic stimulus as sound, like people experiencing synesthesia, then maybe. But not the traditional propagation of sound, which creates internal/external pressure differences that cause the eardrum to deflect. If you were in low-earth orbit, and earth exploded, then some of its atmosphere might blast past you and cause those audible pressure differences. Were you looking for an answer in a different context?

Additional consideration: If you opened up your ear to the vacuum of space, the rest of your body would probably spew out through the hole, due to the relative pressure a spacesuit would be applying to keep the rest of your body functioning.

Edited: 09/06/2021 at 06:36 PM by CurtisEflush
FORUMS : NPNR : sound in space

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