The Sound of the Aurora Borealis (Northern Lights)
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- čas přidán 31. 01. 2012
- As well as the visible green or red glow of the Aurora Borealis (or Northern Lights), there is also created an intense radio emission that can be converted to sound.
Professor Carolin Crawford here explains the phenomena and introduces us to that sound of the Aurora Borealis.
The Aurora Borealis is created by solar wind hitting the earth's atmosphere. The charged particles of the solar wind are normally deflected away by the shield of Earth's magnetic field, but some are able to leak into the magnetosphere around the earth, where they are then guided along Earth's magnetic field to reach deeper into the atmosphere. Here they collide with the oxygen and nitrogen molecules of the air, to produce a luminous green and red glow that is the aurorae (Northern or Southern lights).
These moving charged particles that create the northern lights also produce intense radio emission at very low frequencies. We can 'hear' the aurorae as a busy chatter when these radio signals are converted to sound, varying on the real timescale that you can hear.
This is an extract from a lecture by Carolin Crawford, Gresham Professor of Astronomy: 'The Sounds of the Universe'.
The transcript and downloadable versions of the lecture are available from the Gresham College website:
www.gresham.ac.uk/lectures-and...
Gresham College has offered free public lectures for over 400 years, thanks to the generosity of our supporters. There are currently over 2,500 lectures free to access. We believe that everyone should have the opportunity to learn from some of the greatest minds. To support Gresham's mission, please consider making a donation: gresham.ac.uk/support/ - Věda a technologie
It sounds very like when you're tuning a radio and can't get a station, also there is something like birdsong, and I'd swear there is a distorted voice in there. Very strange. I had no idea the aurora borealis made sounds. Would love to hear and see this for real.
Its infinitely closer to that than whatever this person is saying about non existent things. Spinning earth, suns. etc
I don't think you actually hear it, it's the light we can't see converted to sound.
@@unchosenzombie5144 You saying the earth doesn't rotate and that stars don't exist?
You probably hear the voices because your brain is constantly trying to make out patterns
That's the sound from the improper stretch of the high frequency audio track. This effect happens every time you try to slow down any long audio file. If you have programs like Sony Vegas and Audacity you can easily do this with any kind of recording. Because the electromagnetic waves are in high freqyency, we human can not perceive it as audio so they need to stretch to make it into our hearing range, which is the cause of these sounds.
It’s like someone in another dimension is trying to communicate with us. Like he’s trying to find the right frequency.
I have heard the Northern Lights before when I was in Fairbanks and wasn't sure what it was. I had named it "fairy dust sounds" It sounded similar to here but almost like glass hitting particles of glass....really hard to explain.
Stacy Sullivan I find that more fascinating than the Northern Lights themselves.
Hope that someone can record and post the audible sounds.
I have been able to 'hear' the Northern Lights since I was a child. My family has always dismissed this as none of the rest of them _can_ hear the sounds. I tried to explain that it was a sort of electrical, chattery sound... very whispery and soft.
It sounds like a Detuned Radio and Aliens Arguing.
That's exactly my reaction as well
“I told you we had to go to the Zorlon Station at Zingding 5, but you had to blatzeen on Bartool-“
“I don’t need a map Xanthar, I know where I’m going.”
Lmao😂
I just had a dream about these noises from seeing the Aurora Borealis. I never knew these sounds before, and this is trippy hearing this just ten minutes after waking from that dream.
Sounds like an awesome intergalactic ray gun battle
hahhahahaha
Danyerz ikr?
It seems like you can hear the individual atoms impacting the atmosphere.
This is verry intresting i live in the netherlands and once we had eskimo's from russia as visitors and they told us that they had seen the northen light, and also told us that you could hear it too.
The coolest noise I've ever heard. I pictured angels talking and zooming by.
I was definitely not prepared for what it sounds like
There is speculation that the aurora produces actual sounds, not just radio signals that can be converted to sound, which is what this is. There is also actual microphone recording of the sound produced by aurora. Because this is a radio signal converted to sound, I would say it's pretty unremarkable, especially considering the fact that I very clearly heard interference from a frequency with human voices in that recording.
It sounds sort of like a pod of electronic dolphins chattering in a metallic ocean.
I saw the Northern Lights occur back in the Winter of 1985 in Northeastern Nebraska. We (3 of us) were out in the middle of nowhere and the sounds we heard were like a horse exhaling heavily after running. Deep muffled sounds.
It kinda sounds like magic flowing through wind in the radio:)
That's fascinating. I'd studied the aurora in years gone by and read of people witnessing a sound but, at that stage, no scientific explanation had been found.
So... I know this is probably my brain looking for something recognisable in all that noise but I swear I hear the word "hello".
I am both fascinated and terrified.
i plugged my panda speakers into the northern lights and it sounded like 50 cent?
Lmao
That is a beautiful sound.
Thanks for that presentation. Where can one hear longer, like a lot longer, clips of the sounds???
sounded like an alien ship landing while birds chirping with a waterfall!
I've heard it and it never sounded like this
1:30 for the interesting part.
Excellent Video, Wish it had of been a little longer👍
May I see it?
It sounded like an AM radio that is in between stations.
muffled talking. Solar panels in space.
AURORA BOREALIS SOUNDS!
Anyone know about sounds produced in air at ground level from aurora borealæ?
Neighbor in Maine said his mother was washing dishes. Heard the sounds through her open kitchen sink window.
Knew what they were. Told children to go outside and look as she continued washing the dishes.
As a little boy, he heard the sounds.
Thank you.
Robert
Yes. Some years a go, ?10, I was on holiday on Fairisle in the Shetland Isles and met a local resident who told me he had heard the Aurora as well as seen it, heard it at ground level with his own ears. He seemed to be a completely sober, intelligent witness and had no possible motive to deceive me. I had simply asked him if he had ever seen the Aurora.
this is just Amazing . my dream
one day i will see it
ffs this changed my perspective on northern light forever
Worth watching this just for the picture of the sun.
Can this be heard by a wideband receiver? If so, was frequency is best?
I throught this would sound like a beautiful song like thing... :(
thank you!
How was the radio signal detected? Was there a kind of detection? AM detection or FM detection? And what was the spreading over the frequency band from these signals? On which frequency or frequency band was the receiver tuned?
Yes, this is not sound according Prof. Crawford, it is apparently electromagnetic signals. Hence, your questions are very relevant. If the electromagnetic noise is strong, the receiver will go into saturation and you get all kind of interference due to mixing between humanmade radio signals and the Aurora noise. What you "hear" depends then entirely on the frequency, bandwidth and demodulation method you use.
I was attended on 7 jan 2017 by CZcams that there was a YT user that put the question about the way of the sound detection. When I searched for his/her reaction I could not find it.
Why did I expect something relaxing
ikr, thought it would sound like wave or wind
They are living Spirits
So was this the source of the wow signal?
two years ago I went to Finland with my father and we happened to see the northern light... yet, I could hear its sound, and my father couldn't, so when I tried to explain it, he was all like 'WTF are you talkin about I didn't hear anything!' XD
Nice presentation, anyway :)
It's because they're all in the very high frequency domain, which people can very quickly lose the ability to hear with time due to life exposure to loud sounds.
I think the 100 dislikes are from people too impatient to watch through and find the actual sounds who thought that the entire video was just a speech.
oh that's so cool
tbh, I was hoping it to be the ah-ah oh-oh from frozen 2. djskjss
Sounds like a spaceship fight!
Localized entirely within your kitchen?
Is the sound picked up by equipment or by the human ear?
Sounds like the beginning of I WANT YOU by Savage Garden
Graça Foster é vc??
What is the frequency?
So? Let's HEAR the other sounds about which she speaks.
Any in air sounds recorded? (Heard by our ears.)
+Robert Gift it's at the end!
+Robert Gift The woo-woo spacey Apollo 11 sound?
Mindraker1 ^ No, the snaps and pops generated in the air near the ground.
Kimberly Barry
No its not. Thats not an acoustic recording. Its a EMR recording in the radio wave part of the spectrum.
Ok. Didn't get that. The Norwegian newspaper-article that covered this, didn't pu it that way. They wrote that this was
You need to upgrade your 8 bit sound card.
Can these be heard by human ear?
1:30 ALANS ARE HACKING US 😂😱
LOL do u mean ailens?
I have heard them only once. Aurora was very strong, cold winter night, no other sounds around. Not like this using equipment to hear it.
Hello, friend. My name is Yuan, the producer of HOLES audio documentary（Podcast） and a sound hunter. I'm currently working on a new program, “The Message”. It took me a long time to study the Northern lights recordings from the mythological age to the Heroic Age of Polar Exploration. I will also set out in the scientific spirit to investigate the sounds of the Northern lights. The first step of the investigation was interviewing hundreds of auroral hunters in hopes of finding clues to the sounds. If you have such auditory memories, I hope you can share them with me. Thank you.
Well this is bullocks. Heard the Northern Lights back in 2001 at Finnmarksvidda, Norway. Sounded completely different. More like the sound snow or ice can make when the temperature drops 20 degrees fast, or somewhat like the sound of skiing in minus 30-40 degrees (C). The sound you hear here is the recordings Vogager I & II made with Particle antennas, which is later made to sound by humans (or NASA employees) with oscillators (synthesizers). I kow this, cause I have had the copies since 1992.
...that's the sound a radio receiver reproduces, not the actual sound of the aurora. She makes it pretty clear. Because the aurora emits radio signals
you cant hear the northern lights naturally, they have to be picked up with a device that can pick up radio waves. Sixy did not hear them
It might be generally relevant, but in this debate, not so much. Even so, it's still a vague assumption. What are you basing your statements on?
wow
Sounds like the decepticons
Sounds like interference either to the signal or the recording hardwares electrical components themselves:
Is that an actual, accurate representation of what the human ear hear would hear or is that the sound of the audio recording but also encountering some sort of interference during recording that is embedded onto the audio file?
Better go back and watch the video again. In full this time lol. (Skipped to 1:30 after seeing a comment indicating the audio track begins then.😬)
Edit: Yes, it is the sound presented is a radio receiver picking up the radio-waves the aurora emits. The human ear still may possibly detect sound but it would differ from the sound you hear here.
And what the hell?? Is she lecturing to school kids? She missed so many key aspects of this phenomenon that results in an inaccurate contextual understanding if one was to determine their own conclusion based solely on the information presented in this short video..... why omit such key aspects as at least naming the solar features and events that result in the aurora as it is not a 365 day p/yr event. Also, only stating ‘the matter’ ‘streaming’ of the suns surface misses 90% of the picture. It states the image shown was taken in the UV spectrum so wouldn’t one instantly recognise the ‘wind’ is EMR in nature, ‘as well’. And the word ‘surface’.... 😐 It is understood that that is not the suns ‘surface’ in the picture right? The surface, aka Photosphere, needs to be blocked in order to blocked in the normal optical spectrum as to be able to see this ‘streaming’. It is the suns atmosphere, aka corona, that this attribute originates from. I guess using the term ‘surface’ avoids the problem that classical physics and the Standard Model run into when trying to explain what on earth is going on. Miserably.
I would expect more from a presentation pitched at any level higher than a teenage level. Surprised the visual aids weren’t animated.
Sounds like voices
seriously that is aurora's sound? hm.. I never heard that aurora have a sound 😅
It may be the case that young people nowadays are fucking up their ears with loud music, but that's not really relevant. For instance, I once had a teacher whose job as a teenager was to scrub the hull of a ship. It made his hearing really bad. Anyway, my point is that young ears are SUPPOSED to be more sensitive to higher frequencies than old ones.
Here I exspected the acctual sound. I got a speach.
+ShadowAxon it's at the end
Shame they seemed to upload the sound at such a low bitrate it sounds awful.
It sounds like Transformers speaking their original language
They need to figure out what those voices are trying to communicate sow
Sounds like speaking
Why did those little crystals sound like exploding crystals
CREEEPPY
Me one thing I know: it’s not the sound of « BIG WATERS » like John heard in (Apocalypse 3 , 14) So I am going back to sleep, with my eyes and my ears open.
Anyone else here from the long dark after the 3rd time meeting Methuselah?
0:05 that laptop looks like mine smh
Probably because young people can hear higher sound frequencies than adults and elders.
Search for "Earth auroral kilometric radiation recorded in stereo" . . .
Oh but a whale in Antarctica on the other hand would LOVE this as music to its soul.. In an auditorium of the Universe, as the South seas are of two focal points of this on Earth. Ocean Defender FarNorth. LuvNLight guys
I thought this would sound like the voice in Frozen 2. Lol
If aurora borealis audible makes sound there should be a delay of several seconds between the actual sight of the aurora and the sound it makes. Aurora happens at great heights from the ground, so the sound takes a while to get down to the ground.
Also, no recordings of these alleged sounds seem to exist.
They aren't actually emitting sounds, but as stated, a lot of radio waves. Now radio waves are actually low frequency light, meaning its emitting very low frequency light. Now these frequencies of radio waves are slow enough that sound waves of the same frequency would be able to be heard by the human ear. So basically, they're translating two different languages: one of light and one of sound.
OMG. THIS IS HOW WE ARE SUPPOSE TO COMMUNICATE WITH ALIENS!
thats biggest are real something like a powerful speed sound outo known explained that aurora. "its thats spark" good listening. earth travel in time are real very high speed per-second and more largest. theire we world so much miracle and phenamenon. its ok.. that why we world strength of magnetic field. but thats energy we must something like a buff we look and charge itself care and hormony.
Be a lot nicer if we just could hear the sounds instead of all the yapping.
yeah seriously, i was about to say something about that
Joshua Io Thank you
Joshua Io it's academia. These people have the intelligence to serve the planet and yet often end up serving themselves. Like Hawking, Dawkins... Brilliant, egotistical, nasty people. Its like just give us your work and shut up about religion, unless you plan a second career as a novelist or philosopher.
this video was 2 mins long.. must have really been really annoying to listen to a women be smarter than you for such time :)
Yeah, how dare she take the time to explain such an awesome phenomenon.
The sound of plasma
Psalm 19
The heavens are telling of the glory of God;
And their expanse is declaring the work of His hands.
Day to day pours forth speech,
And night to night reveals knowledge.
There is no speech, nor are there words;
Their voice is not heard.
Their line has gone out through all the earth,
And their utterances to the end of the world.
In them He has placed a tent for the sun ...
Star Wars battle
highfaluting
Ooops wrong video thought it was about hemp. Alrighty than );-)
Writing a story about a Demi God from the Aurora.
To be honest to me these sound like a laser gun for some reason
ATTENTION ALL STALKERS AN EMISSION IS APPROACHING GET TO COVER NOW.
Mission: Survive the blowout
mission updated: Take shelter from the emission.
Star wars
It's creepy
1:32-1:33 sounds like a screaming kid
ET phone home...
creepy sounds OMG 😯
Its the illuminati
Sounds like a bird
sounds like crappy old-school MP3 encoding lol
WE WANTED TO HEAR THE SOUNDS FFS CLICKBAIT
thanks i hate it
Then your Father must have really poor hearing due to damage of his inner ears from loud sounds, or disease. Most older people can hear just fine.
Not true. Most older people can hear fine all their lives. Many younger people have worse hearing than older people because they abuse their hearing with loud music, etc.