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[Video] The Hairy Ball Theorem (www.youtube.com)

submitted 4 days ago* (last edited 4 days ago) by sundray@lemmus.org to c/interestingshare@lemmy.zip

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(Invidious link: https://yewtu.be/watch?v=BHdbsHFs2P0 )

Unexpected applications and a beautiful proof. [...] Home page: https://www.3blue1brown.com/

Credits:
Senia Sheydvasser: Co-writing and sphere deformation animations, made in Blender
Paul Dancstep: Those lovely fluffy sphere animations, made in Cinema4D
Vince Rubinetti: Music

Timestamps:
0:00 - To comb a hairy ball
1:24 - Applications
8:46 - The puzzle of one null point
12:12 - The proof outline
16:41 - Defining orientation
21:44 - Why inside-out is impossible
25:59 - 3b1b Talent
27:44 - Final food for thought

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[–] call_me_xale@lemmy.zip 2 points 4 days ago (1 children)

If I didn't already know what this was, I'd label it a "risky click"

[–] bmpvy@feddit.org 3 points 3 days ago

Now I'm too scared to click