Lesson #297: The Sound of Boiling Water

Science is pretty awesome sometimes.

I just randomly learned that the sound of boiling water is actually the sound of the shock wave created when the bubbles rise from the bottom of the pot and implode on hitting the colder water at the top of the pot. This is a process called inertial cavitation and is the same effect pistol shrimp use to stun their prey. It also produces sonoluminescence.

Unfortunately, the only page I can find for a good breakdown of what cavitation is is on Wikipedia and you know my feelings on that as a source. But still, that was a fun thing to learn and if you want to know more (read: things with actual footnotes), you’re going to have to ask your friendly neighbourhood scientist.

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