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jerromyjon
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I'm curious if there is any relation between sound waves and gravity waves. I don't mean as an analogy. I mean can the speed of sound in matter be derived from the energy of gravity waves.
That means technically that the waves create that sound in all matter it passes through. The LIGO equipment is really just amplifying it.DaveC426913 said:These particular gravitational waves have a frequency in the audible range of hearing
They do create oscillations, but those are not sound-like.jerromyjon said:That means technically that the waves create that sound in all matter it passes through.
...in magnitude.mfb said:They do create oscillations, but those are not sound-like.
DaveC426913 said:Unrelated to the OP's question - one of the pop sound-bites going around is that of the LIGO signal from the merging BHs played as sound.
These particular gravitational waves have a frequency in the audible range of hearing. It's the bloip! at the end of this recording:
https://www.ligo.caltech.edu/video/ligo20160211v2
There are quite few discussions going on here, and on other fora, as well as in some news articles about exactly that. I was surprised to learn that you have to be quite close to experience much of an effect. Some estimates are 'closer than 10,000km', whereas others are 'near or within the event horizon itself' where you would feel a spacetime distortion of 'more than a millimetre or two'.jerromyjon said:Looking at it from the center out I imagine anywhere near this event we detected the gravitational waves would rip everything to shreds. I figure there is a distance boundary where humans could place themselves away from this event and feel the "bloip" pass through your body like a loudspeaker at a concert
Yeah, I could hear it just before my ears would melt off my head! I guess there are more than just gravitational waves to count for 3 suns worth of mass being lost?DaveC426913 said:ignoring the apocalypic-level EM radiation inevitably experienced by proximity to a BH merge.
But nothing "except" gravitational waves escapes from what I keep reading... even the ringdown is the out of equilibrium mass settling internally.DaveC426913 said:We are talking here only about the impact of gravitational waves - ignoring the apocalypic-level EM radiation inevitably experienced by proximity to a BH merge.
Ah, but perhaps that's the ticket after all. Instead of bead on a string I'm thinking bead on a wire...DaveC426913 said:EM radiation inevitably experienced by proximity to a BH merge.
Well, in an ideal setup, sure - like in a large volume of hard vacuum, with no accretion disc and no infalling dust or gas.jerromyjon said:But nothing "except" gravitational waves escapes from what I keep reading... even the ringdown is the out of equilibrium mass settling internally.
But if you were in a field of dust wouldn't it glow as the waves pass?DaveC426913 said:like in a large volume of hard vacuum, with no infalling dust or gas
Perhaps I misunderstood what you were asking.jerromyjon said:But if you were in a field of dust wouldn't it glow as the waves pass?
I don't know what this means.jerromyjon said:Ah, but perhaps that's the ticket after all. Instead of bead on a string I'm thinking bead on a wire...
Gravity is a fundamental force of nature that attracts objects with mass towards each other. It affects sound waves by causing them to travel in curved paths, known as refraction, as they move through different densities in the atmosphere. Gravity also affects the speed and frequency of sound waves, causing them to travel faster and have a higher pitch in denser environments.
Sound waves are mechanical waves that require a medium, such as air, water, or solids, to travel through. When they encounter a new medium, they can either be transmitted, reflected, or absorbed depending on the properties of the medium. For example, sound travels faster through denser mediums, such as water, compared to less dense mediums like air.
Yes, gravity can affect the speed of sound. As mentioned before, gravity causes sound waves to travel faster in denser environments. This is because the molecules of the medium are closer together, allowing sound waves to propagate more quickly.
Gravity does not directly affect sound intensity, which is a measure of the loudness of a sound wave. However, gravity can indirectly affect sound intensity by influencing the path and speed of sound waves. For example, sound waves may become louder in areas with stronger gravitational forces due to refraction and amplification.
Yes, gravity can affect the frequency of sound waves. As sound waves travel through different densities, their frequency can change due to refraction. Additionally, as gravity pulls objects with mass closer together, their vibrations can also be affected, resulting in changes in the frequency of sound waves produced by these objects.