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TIL the Hairy Ball theorem (wikipedia.org)

submitted 2 days ago* (last edited 2 days ago) by vatlark@lemmy.world to c/til@lemmy.ca

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The theorem has been expressed colloquially as "you can't comb a hairy ball flat without creating a cowlick" or "you can't comb the hair on a coconut".

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[-] anotherandrew@lemmy.mixdown.ca 3 points 2 days ago

I guess the closest I've gotten to that is to have a cow lick the "T" off of the "Passat" lettering on my trunk a couple years ago.

[-] GreyEyedGhost@lemmy.ca 1 points 2 days ago

...where were your balls when that happened?

[-] anotherandrew@lemmy.mixdown.ca 1 points 2 days ago

nowhere near the trunk of the car, thankfully. :-)

this post was submitted on 19 Apr 2025

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