The Sound of the "Big Bang"

[sakabatou]

The Big Bang sounded more like a deep hum than a bang, according to an analysis of the radiation left over from the cataclysm.

Physicist John Cramer of the University of Washington in Seattle has created audio files of the event which can be played on a PC. "The sound is rather like a large jet plane flying 100 feet above your house in the middle of the night," he says.

Giant sound waves propagated through the blazing hot matter that filled the Universe shortly after the Big Bang. These squeezed and stretched matter, heating the compressed regions and cooling the rarefied ones.

Even though the Universe has been expanding and cooling ever since, the sound waves have left their imprint as temperature variations on the afterglow of the big bang fireball, the so-called cosmic microwave background.

http://www.npl.washington.edu/AV/BigBangSound_2.wav

more: http://www.newscientist.com/article.ns?id=dn4320

[hvn_nbr_2]

1. Somehow I don't think "The Deep Hum" will ever replace "The Big Bang" .nt

[TechBear_Seattle]

2. Don't be too sure about that

You won't get a big bang if you can't manage a deep hum, after all. :rofl:

[TheMadMonk]

3. Is that hum or hummer?

:evilgrin:

[Sequoia]

8. Guess the Hindus were right.

Buddist too I guess. I recall reading some years back about the Ohm sound and how it was the sound that got things going. That's why it's used today during meditation.

[Beelzebud]

4. That is pretty damn cool!

[Hosnon]

5. Can you even have "sound" if there is no "ear" to hear it?

Sure you can have vibration but the existence of sound seems to require an instrument to translate those vibrations into something else.

[TechBear_Seattle]

6. If a universe explodes into being in a void, and no one is around to hear it...

Does it make a sound?

:toast:

[hunter]

7. I'm a John Cramer fan.

:)

[Occulus]

9. That hiss in the background ain't no remnant of no "big bang"

It's just Gaawd sayin' "shhhhhhhhhhhh"

:D