One for the maths nerds

How to crochet a hyperbolic plane.

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13 Responses to “One for the maths nerds”


  1. 1 AmbigulousNo Gravatar

    Thanks!!
    Is that “pearl 1, plain 1, or “plane x, pearl y” ?? :-)

  2. 2 DeeCeeNo Gravatar

    Or (to the tune of British Grenadiers)…

    ….Ceilings that are hyperbolic
    These are for the alcoholic
    Lying on the floor.

    Vodka for the arty. Gin to make you hearty
    Lemonade was only made for drinking when your mother’s at the party.
    Steer very clear of homemade beer And anything that isn’t label’d clear
    You have nothing else to feee - ar …

    UQ Songbook for the Regatta “Aquatic Carnival” “(chunder buckets provided free)”[sic] 1960

    Cheez, fancy all those GenY young things binge drinking, eh?

    PS Why can’t I remember what I did with the TV control stick Wed night?

    Honi soit qui mal y pense

  3. 3 mickNo Gravatar

    Woulda been cooler if it was all like topologicalish….

  4. 4 DavidNo Gravatar

    That’s pretty cool. There’s also someone marketing Klein bottle beanies [link] if you’re interested.

  5. 5 Darryl RosinNo Gravatar

    ‘One side fits all’ Hee.

    The best resource for Maths and Fibre arts (mostly knitting) is Sarah-marie Belcastro’s Toroidal Snark: [link]

  6. 6 Peter WoodNo Gravatar

    If my memory serves me correctly the topologicalishness arises from the creatures that have hyperbolic space as a universal cover are different to the creatures that have flat, Euclidean space as a universal cover.

  7. 7 zootNo Gravatar

    Minor correction DeeCee, I believe the words should be sung to the tune of “Men of Harlech”. Otherwise, thanks for the memories ;-)

  8. 8 suNo Gravatar

    Mick, Tigtog made a fabulous joke on CIB, calling a particularly self-defeating and tortological argument a “Klein bottle” argument.

    3d renderings of Klein bottles look rather like the bottles given to boys in hospital so that they can take a leak. Never go to a hospital that inhabits more than 3 dimensions.

  9. 9 FDBNo Gravatar

    “a particularly self-defeating and tortological argument”

    They argue about cakes at CIB?

  10. 10 suNo Gravatar

    I never argue with cakes but if they are self-defeating so much the better, saves me the bother of hunting ‘em down with bow and arrow.

  11. 11 suNo Gravatar

    (Oh spelling mistake- now I get it D’Uh)

  12. 12 RayedishNo Gravatar

    David #4. Great link. I would have liked it if it were the knitting patterns for the klein bottle beanie instead of the beanies themselves being for sale. Cos although I’m not interested in crocheting a hyperbolic plane I would like to give knitting a klein bottle a go. ( I once attended a lecture where I was told that you can weave your own klein bottle using a single thread) Although that was a cool ad especially if you want a beanie hand knitted by a team that includes some grannies and an ex librarian!

  13. 13 RayedishNo Gravatar

    ooh ooh Darryl’s post #5 has a pattern, great!

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