The song came from a volcano. Predicting when a dangerous eruption might occur is something they think the musical notes could be used for.
Mary Louise Kelly is the host.
The scientists recorded a song. The tune could tell them when an eruption might become violent.
The volcano in Hawaii is called Kilauea.
There was an active lava lake at the summit in 2008.
The professor is from the University of Oregon. Rocks from the wall fell into the crater.
These are large rock falls.
For the next 10 years, these giant boulders will plunge into the lava lake. Scientists were listening as they fell.
There is a sound of gunfire.
The audio recording is what your ears would hear. The seismographs were placed around the crater to record the low frequencies. Karlstrom and Josh Crozier made music.
There is a song called "LAVA VI BRATING."
It might sound like an old field recording of a marimba if you listen to it here.
That's pretty neat. Something important about the makeup of the molten rock deep inside the volcano is revealed by the song. The notes of the song are dependent on the amount of bubbles of gas in the rock.
The sound of a mixture of bubbles is not the same as the sound of something else.
You can hear this in your kitchen with a spoon and glasses.
There is a can opening.
I've filled the two glasses the same way. One of them has the same amount of water as the other.
There is a sound of glass resonating.
The other one is great.
There is a clip of glass linking.
The amount of bubbles in the drink makes it sound different.
Scientists at the volcano care a lot about bubbles.
Most volcanic eruptions are caused by bubbles.
He wants the volcano's song to be used as a bubble detector to help predict when an eruption will be more violent.
The volcanology community is trying to develop techniques that will allow them to peer into the plumbing system while the event is occurring or before it happens so that we can forecast the hazard.
Karlstom's work is in a journal. This trick might not work all the time. Some volcanos make music. There is a song by Kilauea. "NPR News" is the title of the article.
There is a song called "In the club."
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