New sound recording of the Big Bang
http://www.theobserver.ca/2013/04/02/new-sound-recording-of-the-big-bang

from the link

Available now for your listening pleasure, a recording of our birth.

Captured in hi-fidelity.

A decade ago, American physics professor John Cramer released an audio file of a true golden oldie — the sound of the theorized Big Bang that formed the universe.

Now armed with new data from the Planck cosmology probe — a European-led space observatory — Cramer has released a remix. It’s a remarkable audio update on the oldest collaboration imaginable.

more….

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more info

http://faculty.washington.edu/jcramer/BBSound.html

reddit comments

http://www.reddit.com/r/science/comments/1bk8jc/new_sound_recording_of_the_big_bang/

How do we know it’s genuine?

Peak Warming Man said:

How do we know it’s genuine?

Let’s ask Geoff D.

Ta Crazy.

Sounds a bit like a dying Dalek so far, but it’s getting lower….

It’s setting up some interesting vibrations in the floor now.

Hmm, I was expecting an actual BANG! at the end, but it wasn’t to be.

sibeen said:

Peak Warming Man said:

How do we know it’s genuine?

Let’s ask Geoff D.

WTF would he know about it?

This might as well go here – interesting study and a soothing animation:

VIDEO A group of astrophysicists from the Harvard-Smithsonian Center for Astrophysics and the University of Wisconsin-Madison say they’ve resolved a long-standing question: how long do spiral arms in galaxies like our own last?

The boffins aren’t just thinking about our very own Milky Way: the paper, published in The Astrophysical Journal and also available at Arxiv, notes that 70 percent of galaxies in our little bit of the universe have spiral arms.

That makes them both photogenic and contentious, with some theories proposing that the spiral arms come and go and others treating them as permanent features.

Based on simulations of the motions of a hundred million “stellar particles” (that is, representations of stars in the simulator), the team says the formation of spiral arms happens in response to giant molecular clouds – the star-forming regions in galaxies. These clouds, the simulation suggests, are perturbers that both initiate the formation of spiral arms, and sustain the arms “indefinitely”.

http://www.theregister.co.uk/2013/04/03/spiral_galaxy_arms_are_permanent/

one thing to note, (my little pun) is that the real sound would be much lower, and has been pointed out in the reddit comments has been transposed for human hearing

it sounds like transformer noise to me

very interesting

CrazyNeutrino said:

one thing to note, (my little pun) is that the real sound would be much lower, and has been pointed out in the reddit comments has been transposed for human hearing

it sounds like transformer noise to me

very interesting

Play it backwards and you can hear god laughing.

>Play it backwards and you can hear god laughing.

And you can hear him whispering: “Dawkins is right, I don’t exist. Oh and btw Paul is dead.”

Bubblecar said:

>Play it backwards and you can hear god laughing.

And you can hear him whispering: “Dawkins is right, I don’t exist.

God is the Urban Spaceman?

I thought that sound could not travel in a vacuum, and as that is what there is between us and the location of the BB, we shouldn’t hear anything?

bob(from black rock) said:

I thought that sound could not travel in a vacuum, and as that is what there is between us and the location of the BB, we shouldn’t hear anything?

From the link:

“In general, there are no sounds in space, because there is no air to vibrate,” Cramer, a professor emeritus at the University of Washington, tells QMI Agency.

He notes the old Hollywood tag line of “In space, no one can hear you scream, but adds: “The Big Bang is the exception to this, because the medium that pervaded the universe in the first 100,000 years or so was far more dense than the atmosphere of the Earth.”

>and as that is what there is between us and the location of the BB,

The Big Bang occurred here, there and everywhere. The cosmic background radiation is found in every direction.

Bubblecar said:

>and as that is what there is between us and the location of the BB,

The Big Bang occurred here, there and everywhere. The cosmic background radiation is found in every direction.

The background radiation is largely electromagnetic radiation which travels better invacuo, sound won’t travel in a vacuum.

>The background radiation is largely electromagnetic radiation which travels better invacuo, sound won’t travel in a vacuum.

Yes but the sounds no longer exist, just a fossil “fingerprint” of them in the form of temperature variations tracing early compression waves.

Bubblecar said:

>The background radiation is largely electromagnetic radiation which travels better invacuo, sound won’t travel in a vacuum.

Yes but the sounds no longer exist, just a fossil “fingerprint” of them in the form of temperature variations tracing early compression waves.

I see, OK.