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2025-05-01 13:28:16 UTC

Gerard Westendorp on Nostr: I rolling 3 D printed Hopf link. Actually, a ruled surface generated from a Hopf ...

I rolling 3 D printed Hopf link. Actually, a ruled surface generated from a Hopf link.
This is related to to a so-called Oloid, a shape that when rolled, has the property that all points touch the ground exactly once per roll, and the center of mass sys constant during rolling. Such an Oloid would be the union a 2 of these Hopf links.
https://en.wikipedia.org/wiki/Hopf_link
https://en.wikipedia.org/wiki/Oloid