this post was submitted on 24 Jun 2026
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Have a number of big fans run at almost the same frequency, and you get an onslaught of waves at the differences of those frequencies.
As they are all nearly the same speed/frequency, the differences will be infrasound, which causes a lot of odd effects on people, like anxiety.
So basically the data centers could alleviate their sound problems by having all their fans run at opposite frequencies to cancel our the sound through deconstructive interference
And do something that's good for people at virtually no expense? Haha, no.