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Pseudospheres
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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Practically speaking it's difficult to know when to stop crocheting up a pseudosphere...
Ah yes, classically the only limits to non-euclidean geometry has always been the supply of yarn.. ;)
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http://www.kleinbottle.com/klein_bottle_hats.htm
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http://www.etsy.com/listing/33976760/two-headed-black-snake-scarf?ref=sr_gallery_1&ga_search_query=snake+two+headed&ga_search_type=handmade&ga_page=&order=&includes[0]=tags&includes[1]=title&filter[0]=handmade