Hairy Ball Theorem

https://en.m.wikipedia.org/wiki/Hairy_ball_theorem

78 points · 10 comments · view on lemmy.world

10 Comments

4am@lemm.ee · 23 pts · 1y

A failed attempt to comb a hairy 3-ball (2-sphere), leaving a tuft at each pole

Donjuanme@lemmy.world · 8 pts · 1y (3 replies)

Only on a perfect sphere. Imperfections allow for places of overlap

ivanafterall@lemmy.world · 9 pts · 1y (2 replies)

Damn these perfect balls of mine!

Donjuanme@lemmy.world · 3 pts · 1y (1 reply)

Where do you keep them? Because if they're supported by, or attached to anything, or affected by gravity or pressure, I'm sorry to burst your bubble, they aren't perfect

FooBarrington@lemmy.world · 8 pts · 1y

They are perfect to me 🥰

Beacon@fedia.io · 6 pts · 1y (2 replies)

Huh?

GluWu@lemm.ee · 13 pts · 1y (1 reply)

You can never have smooth hairy balls, if you have a donut though it can be smooth and hairy.

surewhynotlem@lemmy.world · 7 pts · 1y

Yeah you can. Just tuck the last bit into your arse hole.

Ephera@lemmy.ml · 4 pts · 1y

In German, it's called "Satz vom Igel" (verbatim: "Sentence from the hedgehog"). Sounds like some fable. 🙃

Zachariah@lemmy.world · 4 pts · 1y

do chocolate salty balls next