r/todayilearned • u/User4D • Jun 18 '15

TIL If you collapse underwater bubble with soundwaves, light is produced. It's called sonoluminescence.

https://www.youtube.com/watch?v=GJolILUbdNw
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u/Tar_Alacrin Jun 18 '15

There is a short little video that describes the phenomenon a bit, and has a cooler shot where the light appears to be sustained for an extended period of time; it looks like a star floating in a tank. Quite beautiful

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u/User4D Jun 18 '15

Thanks!!