this post was submitted on 01 Feb 2025
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xkcd #3044: Humidifier Review (xkcd.com)
submitted 1 day ago by [email protected] to c/xkcd
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They should add a little sticker that certifies that the humidifier supports water conservation, but in the sense of energy conservation or momentum conservation.

https://explainxkcd.com/3044/

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[–] [email protected] 2 points 1 day ago

Yeah this is the ultrasonic type. The diaphragm is basically a waterproof speaker fed with a signal in the 3-5 MHz range. I don't get how the fine liquid bubbles don't coalesce. Are they all similarly charge or something?