• gamer@lemm.ee
    link
    fedilink
    English
    arrow-up
    2
    ·
    1 year ago

    This is done by turning the tires inside-out and pushing them through horizontally. You need a machine to do it though because that rubber is very stiff.

    • Greg Clarke@lemmy.caOP
      link
      fedilink
      English
      arrow-up
      0
      ·
      1 year ago

      How does turning then inside out solve the problem of getting them on the post? I can’t picture it in my head

      • jsveiga@vlemmy.net
        link
        fedilink
        English
        arrow-up
        7
        arrow-down
        1
        ·
        edit-2
        1 year ago

        Because the tire is topographically a radially flattened torus, when you turn it half inside out, it becomes a 2D möbius strip. At this point it effectively has only one side. When you push such construct horizontally against a solid, because the z-axis perpendicular to the strip has no negative values (it only has one side), if that coincides with the orientation of the ∇Np of the solid, the z vector wraps around the solid. When the tire snaps to its rest state (inside in), it’s easy to see why it ends up around the pillar.

        This 3D animation demonstrates the concept:

        https://youtu.be/xvFZjo5PgG0

      • Bowen@lemmy.world
        link
        fedilink
        English
        arrow-up
        0
        ·
        edit-2
        1 year ago

        Honestly I’d just assume they cut them and use a torch to melt them back together. You’d probably never notice after a long enough time because of weathering and dust. Maybe even put there before it was capped off with the second floor?

        • Fosheze@lemmy.world
          link
          fedilink
          English
          arrow-up
          2
          ·
          1 year ago

          Vulcanized rubber tends to burn more easily than it melts. You could melt them back togeather but you need finer temp control than a normal torch offers. Odds are they were just glued back togeather. It’s not like they’re being used on the road so you don’t need to worry about the glue holding up under those conditions. I’m also pretty sure I can see the line in the video where they were cut and glued.

  • ChrisLicht@lemm.ee
    link
    fedilink
    English
    arrow-up
    2
    arrow-down
    1
    ·
    1 year ago

    Well, when a post-daddy and a tire-mommy love each other very much, and the tire-mommy has a cuckquean fetish . . .