Blanket physics is harder to understand than Calabi-Yau Manifolds

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• drolex@sopuli.xyz ⁨6⁩ ⁨months⁩ ago

  WARNING: If your compact Kähler manifold whose first Chern class is vanishing and if it is also Ricci-flat, than 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

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  • Natanael@slrpnk.net ⁨6⁩ ⁨months⁩ ago

    [insert stop doing $topic meme]

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• doublejay1999@lemmy.world ⁨6⁩ ⁨months⁩ ago

  Oh god that’s brilliant

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• Num10ck@lemmy.world ⁨6⁩ ⁨months⁩ ago

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

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  • Natanael@slrpnk.net ⁨6⁩ ⁨months⁩ ago

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

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    • prole@sh.itjust.works ⁨6⁩ ⁨months⁩ ago

      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?

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• AnarchistArtificer@slrpnk.net ⁨6⁩ ⁨months⁩ ago

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

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  • TronnaRaps@lemmy.ca ⁨6⁩ ⁨months⁩ ago

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

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    • jaybone@lemmy.world ⁨6⁩ ⁨months⁩ ago

      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.

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• dessimbelackis@lemmy.world ⁨6⁩ ⁨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

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• Kowowow@lemmy.ca ⁨6⁩ ⁨months⁩ ago

  One reason I like queen sized blankets

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• someacnt_@lemmy.world ⁨6⁩ ⁨months⁩ ago

  I thought it was only me

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• vaderaj@lemmy.world ⁨6⁩ ⁨months⁩ ago

  The function just can’t converge haha

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• CommissarVulpin@lemmy.world ⁨6⁩ ⁨months⁩ ago

  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

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  • jaemo@sh.itjust.works ⁨6⁩ ⁨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.

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• KittyCat@lemmy.world ⁨6⁩ ⁨months⁩ ago

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

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