Re: [microsound] OT - Recording Auroras

[Nathan Snider <snider@xxxxxxxxxxxxxxxx>]

There's also a live stream of a VLF receiver from the INSPIRE project at:

http://spaceweather.com/glossary/inspire.html

Not the greatest quality, but neat regardless.  Last week, I turned it on at
work and just let it run in the background all day.  Things seem to get
really interesting around sunset.  Um, central time, that is.

-nathansnider

----- Original Message -----
From: "Christian Aeschliman" <ozwanderlust@xxxxxxxxxxx>
To: <microsound@xxxxxxxxxxxxx>
Sent: Wednesday, February 27, 2002 10:37 PM
Subject: [microsound] OT - Recording Auroras


"This is a presentation of Earth's natural radio emissions that occur in the
extremely-low-frequency to very-low-frequency (ELF-VLF) radio
spectrum--specifically, at AUDIO frequencies between approximately 100 to
10,000 cycles-per second (0.1 - 10 kHz).

Unlike sound waves which are vibrations of air molecules that our ears are
sensitive to, natural radio waves as received at ground-level are vibrations
of electric and magnetic energy (electromagnetic waves) which--though
occurring at the same frequencies as sound--cannot be listened to without an
audio-frequency ELF-VLF radio receiver to convert the natural radio signals
directly into the same sound frequencies. Another amazing realm of nature is
thus ready to be explored and observed."

http://www-pw.physics.uiowa.edu/mcgreevy/



Sounds of the Magnetosphere:
http://www-pw.physics.uiowa.edu/plasma-wave/istp/polar/home.html



--Boundary_(ID_G+1zNwCSoeNovIK1FHoO/A)
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