Today I Learned (TIL)

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TIL the Hairy Ball theorem (wikipedia.org)

submitted 3 days ago* (last edited 3 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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[–] GreyEyedGhost@lemmy.ca 1 points 2 days ago (1 children)

...where were your balls when that happened?

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

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