Sounds of northern lights are born close to ground

Jul 09, 2012

For the first time, researchers at Aalto University in Finland have located where the sounds associated with the northern lights are created. The auroral sounds that have been described in folktales and by wilderness wanderers are formed about 70 meters above the ground level in the measured case.

Researchers located the sound sources by installing three separate in an observation site where the auroral sounds were recorded. They then compared sounds captured by the microphones and determined the location of the sound source. The was seen at the observation site. The simultaneous measurements of the geomagnetic disturbances, made by the Finnish Meteorological Institute, showed a typical pattern of the northern lights episodes.

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"Our research proved that, during the occurrence of the northern lights, people can hear natural auroral sounds related to what they see. In the past, researchers thought that the aurora borealis was too far away for people to hear the sounds it made. This is true. However, our research proves that the source of the sounds that are associated with the aurora borealis we see is likely caused by the same from the sun that create the northern lights far away in the sky. These particles or the geomagnetic disturbance produced by them seem to create sound much closer to the ground," said Professor Unto K. Laine from Aalto University.

Details about how the auroral sounds are created are still a mystery. The sounds do not occur regularly when the are seen. The recorded, unamplified sounds can be similar to crackles or muffled bangs which last for only a short period of time. Other people who have heard the auroral sounds have described them as distant noise and sputter. Because of these different descriptions, researchers suspect that there are several mechanisms behind the formation of these auroral sounds. These sounds are so soft that one has to listen very carefully to hear them and to distinguish them from the ambient noise.

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More information: The Aalto University researcher's study will be published in the proceedings of the 19th International Congress on Sound and Vibration. The congress is held in Vilnius, Lithuania from 8 to 12 July 2012.

Researcher's website: www.acoustics.hut.fi/projects/aurora

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User comments : 18

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julianpenrod
1 / 5 (15) Jul 09, 2012
Another evident attempt fby the New World Order to change the truth. This was never mentioned anywhere. Not in science magazines, not in astronomy magazines, not in travel magazines or natural history type magazines. Even lore of the northern regions, from Alaska to Northern Europe, has no reference anywhere to it. To be sure, the NWO has the power to alter records. A look at material on the aurora borealis can produce now more references to the sound than to the lights themselves. But this seems just another lie by the NWO.
julianpenrod
1 / 5 (14) Jul 09, 2012
Another evident attempt fby the New World Order to change the past. This was never mentioned anywhere. Not in science magazines, not in astronomy magazines, not in travel magazines or natural history type magazines. Even lore of the northern regions, from Alaska to Northern Europe, has no reference anywhere to it. To be sure, the NWO has the power to alter records. A look at material on the aurora borealis can produce now more references to the sound than to the lights themselves. But this seems just another lie by the NWO.
barakn
Jul 09, 2012
This comment has been removed by a moderator.
julianpenrod
1 / 5 (11) Jul 09, 2012
I made a point that those looking on, even those dedicated to promulgating this new lie, recognize as true. That there is no record or tradition of stories of the aurora borealis making a sound. And I received only a rating of 1 star. barakn makes no point, they do not address the issue, they don't even try to provide evidence that there were recountings of a noise before this article. They only call me names. And they receive a rating of five stars. I said before that the ilk of most Phys Org readers seems to make itself evident constantly. But, note, no quisling for the New World Order will provide any comprehensive, incontrovertible proof that there were stories or accounts of noise from the aurora borealis before this. They will simply insist that, if you are one of the gullible tools of the NWO, you must believe that there were.
Neurons_At_Work
5 / 5 (10) Jul 09, 2012
julianpenrod--
I have to say, I have no idea what you are talking about. After only a short search I found numerous references to the sporadic hearing of sounds apparently produced by aurora phenomena dating back a number of years. I also easily located references and stories told by native peoples of Alaska and elsewhere who considered the sounds commonplace, and thought they were the voices of their ancestors. I then watched a number of scientific videos related to plasma speakers, St. Elmo's Fire and the like, and although I have a very skeptical and scientific mind I find nothing in the above that even remotely hints of the conspiracy or intrigue you allude to. No offense, but I do think your tin foil hat is slipping...
julianpenrod
1 / 5 (12) Jul 09, 2012
I already mentioned that the New World Order would have flooded all available resources with references to sounds related to the aurora. They have the facilities and, to promote their alteration of reality, they will go to any lengths. It's those who are not gullible and malleable, who don't let themselves be talked into believing they heard such stories simply because they are ordered to believe they heard them, and who aren't working for the NWO, who can tell that they never heard of this phenomenon before!
It should be mentioned that abusive, contemptuous and mocking attitudes are not considered consisent with searching for the truth. Those who engage in them tend to act more to serve the New World Orde.
scidog
5 / 5 (5) Jul 10, 2012
this is a topic on the wilderness canoe tripping sites.i have heard the Lights,once the humming was so loud i got out of my tent late at night for a look.the type of display does not seem to effect the sounds.the ones i got up to look at were just the common green curtains.another display that looked like the flashing you would get with faltering fluorescent tubes in reds and greens were silent.
Graeme
5 / 5 (4) Jul 10, 2012
It sounds a bit like a spark. For it to be so short it must be quite localised and not long like lightning.
docmordin
5 / 5 (6) Jul 10, 2012
This was never mentioned anywhere.


The following is from: A. M. Clerke, "L'Aurore Boréale Étude générate des Phénomènes produits par les Courants électriques de l'Atmosphère Resultate der Polarlicht-Beobachtungen angestellt im Winter 1882 und 1883 auf den Stationen Kingua Fjord und Nain", Nature, 35: 433-456, 1887

"Aurorae are, in this view, the polar equivalents of lightning. The same office of relieving the electrical tension of the air is fulfilled with innocuous tranquility. Not indeed in absolute silence, though, the 'eerie din' of their rustling streamers has been caught by very few ears. Major Dawson, however, was fortunate enough to hear once, and once only, during his sojourn at Fort Rae, 1882-83, a sound 'like the swishing of a whip, or the noise produced by a sharp squall, accompanied, with its crescendo and diminuendo, the brightening and fading of an aurora visible in time. This was the first official conformation of innumerable less authentic reports..."
Fionn_MacTool
1.5 / 5 (8) Jul 10, 2012
Doc, what you fail to realise is that that article you cite could easily have been planted by the NWO. Have you ever met this "A.M. Clerke"? I don't think so. And even if they did exist, who is to say that the NWO don't either have time travelling technology now or invent it at some indeterminate point in the future? Then they could have travelled back to the place where "A.M. Clerke" was sitting and used a little device to make those noises. The NWO are so sinister that that is exactly the kind of thing they would spend their time doing in order to convince the world that northern lights make noise!

It is obvious only julianpenrod has seen the light on this one. The question julian should be asking himself though is, whether it will be him in the future who joined the NWO and thus, is responsible himself for going back in time and making the noise!? We are through he looking glass here people!!!
scooterh
4.3 / 5 (6) Jul 10, 2012
Another evident attempt by the New World Order to change the truth.


I'm sure the NWO just needed a place to store all of their noisy ghosts. What better place to do so than up north where there aren't many people?
Fionn_MacTool
1 / 5 (6) Jul 10, 2012
p.s. Julian, the only time you can be sure you are onto something is when they don't address your statement and simply mark you with one point.
docmordin
5 / 5 (6) Jul 10, 2012
Oh, and if you want the earliest possible accounts, feel free to peruse:

H. Samuel, "A Journey from Prince of Wales's Fort in Hudson's Bay to the Northern Ocean in the Years 1769, 1770, 1771, 1772", A. Strahan and T. Cadell: London, Great Britain, 1795

D. Thompson, "Narrative of his Explorations in Western America 1784-1812", Champlain Society: Toronto, Canada, 1916

Note that both of these great texts are freely available online.
docmordin
5 / 5 (4) Jul 10, 2012
[W]hat you fail to realize is that that article you cite could easily have been planted by the NWO.


I happen to have a complete set of Nature issues here at Yale. Much to my amazement, the PDF version of the paper I downloaded matches the old, printed version perfectly!

And even if they did exist, who is to say that the NWO don't either have time traveling technology now or invent it at some indeterminate point in the future?


Traveling backwards in time is impossible: S. Zhang, et al., "Optical precursor of a single photon", Phys. Rev. Lett. 106: 243602, 2011

The NWO are so sinister that...


I'd love to refute this claim, but I'm late for my NWO meeting.
Fionn_MacTool
3 / 5 (2) Jul 10, 2012
lol...I was joking :D

You guys needs to get a sense of humour.

But since we are on the topic, travelling backwards in time in a particular context is impossible. You can always change the context though. After all, to make the standard laws of physics hold we have to base it on certain assumptions, and as a scientist I am sure you agree with me on that. So, while I agree that science based authority is as good as we can expect and while I appreciate your enthusiasm for it, don't get irate when the joker jumps out of the cracks and laughs in its face ;)
rubberman
5 / 5 (1) Jul 10, 2012
Or, having been to yellowknife and heard the hum and crackle, I have to concur that Julian "chemtrail" Penrod is indeed off his meds.
julianpenrod
1 / 5 (3) Jul 10, 2012
It's easy enough to alter online records, and probably many offline ones, as well. But, as is so often the case, thje proof is in the pudding.
If noise from the aurora is so commonplace, it would have long ago entered the lexicon. Reources like National Geographic would long ago have familiarized the public with it. They are not familiar with it, so it was never mentioned before.
People knew about the aurora for thousands of years, why is this the first research study into this supposed noise?
Notice that docmordin says their downloaded version of a paper from Nature they downloaded "matches the old, printed version perfectly", but they don't verify whether the old article mentiones noise from the aurora. If the NWO isn't changing material about sea turtles, of course old and new articles will match!
Derechos, auroral noise, thousands of tornadoes a year, results of chemtrails the NWO want to convince people are normal events.
yyz
5 / 5 (1) Jul 11, 2012
"Reources like National Geographic would long ago have familiarized the public with it. They are not familiar with it, so it was never mentioned before."

Really? Here's an excerpt from a 2001 National Geographic article that discusses auroral sounds and includes a personal account by aurora researcher Charles Deehr: http://ngm.nation...1.3.html

And FYI, there are some things known to science that have never been mentioned in Nat Geo. Doesn't mean they don't exist/occur.
barakn
5 / 5 (1) Jul 20, 2012
The moderators deleted my comment stating julian is "either a moron or a liar." So let me state why I said it. I personally heard allegations over a decade ago that aurora produces sound. For julian to claim that it's a new meme being promulgated by a "NWO" is to suggest that they somehow saw fit to take me of all people and insert a false memory. And that's the problem with conspiracy theorists - their belief is unshakable no matter how ridiculous the allegation. And julian's is by far one of the craziest. Billions of dollars spent implanting false memories, using ninjas to replace millions of books and magazines in libraries and private homes, thousands of webpages altered or planted, just to cover up some new noises. A real NWO wouldn't do it this way. They'd say something like "aurora didn't make noise until now because the atmosphere is warming" or "because the CO2 content is increasing."