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NASA Recorded The Sound From A Black Hole, And It's Super Eerie

Started by scooter, August 25, 2022, 06:07:59 PM

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scooter

https://www.sciencealert.com/nasa-recorded-the-sound-from-a-black-hole-and-its-super-eerie

From the article:

The black hole is at the center of the Perseus cluster of galaxies, and the acoustic waves coming from it have been transposed up 57 and 58 octaves so they're audible to human hearing...

We wouldn't be able to hear them at their current pitch. The waves include the lowest note in the Universe ever detected by humans – well below the limits of human hearing...

The lowest note, the one identified back in 2003, is a B-flat, just over 57 octaves below middle C; at that pitch, its frequency is 10 million years. The lowest note detectable by humans has a frequency of one-twentieth of a second.
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PR19_Kit

TEN MILLION YEARS?

Yes, that's definitely a LOW frequency!!!  :o
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...and I'm not a closeted 'Take That' fan, I'm a REAL fan! :)

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Kit

kerick

There's someone in my head, but it's not me!

frank2056

Imagine someone walking up to you, pointing at a Spitfire model and asking why that Mustang has those funny colored circles on its wings. What? calm down! They're both Allied airplanes and they fought the Commies in WWI, right?

As an astronomy major, amateur astronomer and up to date in the field... this article makes me grit my teeth in the same way. Oh well, make science interesting, etc. etc.

John Scalzi (who writes good SF as well) made some music with that sound.

kitbasher

Pah!  It's either an outtake from the Bowie album 'Low' or a mid-70s Brian Eno album.  Either way, Eno had a hand in it!
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perttime

Quote from: scooter on August 25, 2022, 06:07:59 PM...
... at that pitch, its frequency is 10 million years. The lowest note detectable by humans has a frequency of one-twentieth of a second.

So, one sound wave takes 10 million years to complete.... How long have they been listening?

jcf

Interesting that people have commented Pink Floyd, Eno etc., my first thought was Phillip Glass.  ;D
"Conspiracy theory's got to be simple.
Sense doesn't come into it. People are
more scared of how complicated crap
actually is than they ever are about
whatever's supposed to be behind the
conspiracy."
-The Peripheral, William Gibson 2014