this post was submitted on 03 Jun 2026
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xkcd #3254: Detector (imgs.xkcd.com)
submitted 2 days ago by xkcdbot@lemmy.world to c/xkcd@lemmy.world
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xkcd #3254: Detector

Title text:

No other experiment has a lower false negative rate.

Transcript:

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Source: https://xkcd.com/3254/

explainxkcd for #3254

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[–] homik@slrpnk.net 9 points 2 days ago (1 children)

A self-detecting sensor. Or an existence failure detector, if you use the inverting output.