The sound of the earth's radiation belts

[sighmon]

Almost as cool as Rob's cosmic ray detector..
http://www.theverge.com/2012/10/2/3442962/nasa-earth-sound-space

NASA has released a recording of a phenomenon called chorus, which
consists of radio signals caused by plasma waves found in our planet's
radiation belts.

"This is what the radiation belts would sound like to a human being if
we had radio antennas for ears."

Sounds a bit like 'wizball' - C64 game. :-)

[Steven Pickles]

On that topic, my friend Honor (who lived in Adelaide for a while at the end of the 90's) gave a TED talk about the sounds of space:

http://www.ted.com/talks/honor_harger_a_history_of_the_universe_in_sound.html

pix

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[Fee Plumley]

I met first Honor (and her then partner in crime Adam, and other amazing bods) at The Acoustic Space Lab in Latvia. That was the very definition of bonkers: http://acoustic.space.re-lab.net/

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Fee Plumley

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[Andrew Helgeson]

Has anyone else ever built a decimeter wavelength, around 20-30Mhz, radio telescope to listen to Jupiter?

It is freakin amazing!

These sounds are from non-thermal radio sources, which is different from hearing Jovian lightning.

At this point I wish pox upon the basterds that stole my antenna for the aluminium!
Along with all the other gear!

Andrew

[Ken]

Do you mean decameter?
(I'm itchy, but it weren't me.)

[Mark Jessop]

You'd need to set it up a bloody long away from here. Local noise on those frequencies is horrific anywhere near cities.

- Mark

[Robert Hart]

When I heard these sounds from the NASA Radiation Belt Storm Probes I thought they sounded very much like what you can hear on an ELF radio. 

http://en.wikipedia.org/wiki/Whistler_(radio)

http://en.wikipedia.org/wiki/Dawn_chorus_(electromagnetic)

They are quit easy to make http://naturalradiolab.com/content/view/3/4/

Sadly unless you have property way out in the sticks listerning to anything extraterestial  in the 18mhz into the multi 100mhz will be impossible due to RFI.  Hence my current obsession with cosmic ray detectors.

Robert, 

Motel in Hay NSW :-)

[Tamsyn Michael]

My folks have property way out in the sticks (a farm 5 km out of Quorn)...

[Andrew Helgeson]

I originally setup in the bottom of a steep valley @Ashton, that worked "ok", trying to sort out man made noise and local lightning wasn't as hard as I thought.
Then I moved it east of Burra, where it went "missing".
The decameter (my spell checker likes decimeter) antenna, a big 5 element yagi and a 2 m loop antenna feeding a receiver that I built from a design in Heisermann's "Amateur Radio Astronomy Handbook".
The guy who wrote the book did all his experiments in the middle of town!
I added a long wire antenna with a receiver that was almost the same as the "spooky tesla radio" I saw a while ago on Instructables, I used that to listen for lightning, ignition noise etc.
Jupiter is the most powerful non-thermal source of radio in the solar system, the effect is synchrotron radiation.
I was able to see all the really strong radio sources, Sag A etc.
None of this was digital, antenna -> receiver -> integrator -> voltmeter -> pencil -> paper.

If nothing else it was a great excuse to sit in the middle of nowhere around a fire and enjoy the night sky.

These days with modern components and techniques you can get way better results.
There is a great NASA site where they have a design for a "Jupiter" radio.
A really cool world wide effort that keeps Jupiter under near constant observation.

http://www.radiosky.com/rjcentral.html
http://radiojove.gsfc.nasa.gov/
http://www.spaceacademy.net.au/spacelab/projects/jovrad/jovrad.htm

Andrew