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OK this sounds reasonable. I'm somewhat familiar with the use of magnetics to record, such as audio tape, magnetic strips on cards, etc. but I can't explain how magnetic changes alone create these sounds. Help?
Originally posted by mother1138
Applause to that researcher for taking this seriously. I think it's too easy for others in the scientific community to blow this kind-of thing off.
I think it's interesting that the sun has been more active lately, and so have reports of the "sky sounds." Seems worthy of genuine scientific research.
Originally posted by DenyObfuscation
reply to post by tpaine1809
I'm reposting this question in case you missed it.
OK this sounds reasonable. I'm somewhat familiar with the use of magnetics to record, such as audio tape, magnetic strips on cards, etc. but I can't explain how magnetic changes alone create these sounds. Help?
ETA: I watched the vid. Didn't catch an explanation for sounds from magnetic changes.edit on 12-2-2012 by DenyObfuscation because: There's always more
Originally posted by Kali74
reply to post by Arbitrageur
Generally I would defer to you as you seem to have much more scientific knowledge than I but, I'm getting something else entirely than wild guesses...
“We have analyzed records of these sounds and found that most of their spectrum lies within the infrasound range, i.e. is not audible to humans. What people hear is only a small fraction of the actual power of these sounds. They are low-frequency acoustic emissions in the range between 20 and 100 Hz modulated by ultra-low infrasonic waves from 0.1 to 15 Hz. In geophysics, they are called acoustic-gravity waves....”
So this type of thing is actually normal geomagnetic activity but on a larger scale, we don't typically hear this happening even though it is normal. So he goes on to suggest that something more powerful is causing the magnetosphere to hum like we have been hearing, to me it's a logical step that the stronger CME/Flares we have been having the past couple of years (if I recall that correctly) is going to cause a louder hum to the point of being audible to human ears. Maybe this is why animals go nuts before geo activity, if this is what they're hearing I can understand why.
ETA: Great thread OP, thanks for sharing.edit on 11-2-2012 by Kali74 because: (no reason given)
Originally posted by Kovenov
reply to post by eNaR
I starred your post not because I believe what you describe will occur, but rather that its "uh oh" value reminded me of "The Hitchhiker's Guide to the Galaxy" & roused a chuckle out of me. But if what you posit does occur then ... I suppose I'll shake my head back and forth and chuckle again. Something about "uh oh" moments really brings out the gallows humor in me.
Cool profile pic by the way.
Originally posted by UKLionheart
I actually heard something very similar to the sound on Saturday afternoon in Grimsby UK.
When I first heard them on Youtube, I had the similar "is it a hoax?" thought that lots of people have, becasue it DOES sound like it's been taken from War of the Worlds....
But then I heard it on Saturday afternoon for real...
BUT I know what caused it - we are a port and with the fog and snow we had here at the weekend, the foghorns seemed to echo all around, and could not be pinpointed to the direction of the docks.
I don't know what conditions were like in the "real" videos, but it crossed my mind in similar atmospherics distorting a regular sound were the casue?