this post was submitted on 18 Apr 2024
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Science Memes

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819
Blanket physics is harder to understand than Calabi-Yau Manifolds (files.catbox.moe)
submitted 7 months ago by [email protected] to c/[email protected]
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[–] [email protected] 28 points 7 months ago* (last edited 7 months ago) (1 children)

WARNING: If your compact Kähler manifold whose first Chern class is vanishing is also Ricci-flat, then it is a Calabi-Yau. Proceed with care.

  • Risk of non-Riemaniann metric
  • Holonomy equal to a subgroup of SU(n)
  • Possibility of mild singularities
[–] [email protected] 7 points 7 months ago

[insert stop doing $topic meme]

[–] [email protected] 15 points 7 months ago

Oh god that’s brilliant

[–] [email protected] 14 points 7 months ago (1 children)

i read once that untangling fabric is the hardest part of domestic robots. we don't have the math for laundry.

[–] [email protected] 13 points 7 months ago (1 children)

And we still can't replace human seamstresses, reliably automating many processes is STILL hard

[–] [email protected] 10 points 7 months ago (2 children)

Completely unrelated, but I just noticed that "seamstress" still seems acceptable, despite shifting more toward gender neutral vocational titles. The only other one I can think of was "stewardess" which was changed to "Flight Attendant."

Is there a difference between a tailor and a seamstress? Or is the latter just the female version of the former, and therefore an archaic term?

[–] [email protected] 5 points 7 months ago (1 children)

Stitch Attendant

[–] [email protected] 5 points 7 months ago (1 children)

Maybe quit letting the hackey sack fall then Kyle!

[–] [email protected] 2 points 7 months ago* (last edited 7 months ago) (1 children)

Stall that shit on your perforated Rod Lavers....

...in all quad flavors, lawd save us

[–] [email protected] 5 points 7 months ago (1 children)

I think sartor is the old male version of seamstress, but nowadays it'd probably just be "garment maker".

I vow for the old British "haberdasher".

[–] [email protected] 2 points 7 months ago

Haberdasher is good. Would the female version be a Haberdasheress?

[–] [email protected] 12 points 7 months ago (1 children)

My brother once got so tangled in a duvet cover, we had to cut him free.

[–] [email protected] 7 points 7 months ago (1 children)

Does your brother usually wear a helmet, by any chance?

[–] [email protected] 6 points 7 months ago (1 children)

Maybe they put him in the dryer with the sheets. My duvet cover is like some kind of Bag of Holding that swallows pillow cases and never wants to return them.

[–] [email protected] 2 points 7 months ago (1 children)

I had a friend whose younger brother used to get trapped in the dryer.

[–] [email protected] 1 points 7 months ago

I think I saw her video about that.

[–] [email protected] 11 points 7 months ago

I used to see a local band named Calabi-yau. Their sound was kind of a rush-inspired math-rock. Really talented guys. Guitar player got hired by google and moved so the group kind of retired

[–] [email protected] 8 points 7 months ago

One reason I like queen sized blankets

[–] [email protected] 3 points 7 months ago

I thought it was only me

[–] [email protected] 2 points 7 months ago

The function just can't converge haha

[–] [email protected] 1 points 7 months ago

More like half awake me trying to take the laplacian of my pillow for my very important dream test.

[–] [email protected] 1 points 7 months ago (1 children)

Wow, I had no idea the Calabi-Yau Manifold was a real thing. I thought it was just made up for Barotrauma, since that was the only place I heard of it. It sounded Lovecraftian enough so I never questioned it lol

[–] [email protected] 4 points 7 months ago

There's a great book by Greg Egan called Diaspora that explores the idea that every atom is a Calabai-Yau manifold, and the aperture to a wormhole via Kaluza-Klein handwavery. It's a bit of a heavy read at times but super interesting.