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Pseudospheres are basically just the hyperbolic planes I've crocheted up before only this time in a spiral. Historically they are the first shapes that were hypothesized as examples of non-euclidean surfaces with negative curvature.

Practically speaking it's difficult to know when to stop crocheting up a pseudosphere...

This entry was originally posted at http://purplecat.dreamwidth.org/29537.html.

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purplecat

Glad to know some of it is sticking!

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purplecat

July 2025

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