Music from a hydrogen fusion reactor (the sun)

I love stuff like this: Astronomers from the University of Sheffield in the United Kingdom have made music based on the oscillations they observed in the sun’s corona:

They found that huge magnetic loops that have been observed coiling away from the outer layer of the sun’s atmosphere, known as coronal loops, vibrate like strings on a musical instrument.

In other cases they behave more like soundwaves as they travel through a wind instrument.

Using satellite images of these loops, which can be over 60,000 miles long, the scientists were able to recreate the sound by turning the visible vibrations into noises and speeding up the frequency so it is audible to the human ear.

Click to hear some of this music.

I recall hearing several years ago about a project that created music based on the orbital velocities of the planets. (Unfortunately, a few web searches haven’t turned up anything online.)

What other things that aren’t ordinarily audible could be used to make music? Stock market data? Temperature variations over the course of a year? Satellite imagery? Traffic flow patterns?

Image credit: Astronomy Picture of the Day.

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