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Saturday, 2012 June 16, 13:23 — society

Zurker

What do you know, yet another social website.

Thursday, 2012 June 14, 09:03 — mathematics, merch

but wait there’s more


This one is a projection of a design on (half of) the surface of a hypersphere: a ribbon spans two orthogonal great circles, wrapping three times around one and five times around the other.

Kitty teeth did break it at one point, but with redundancy that’s not a serious problem. Having got my pix I’ll keep the new toys away from them henceforth.

Thursday, 2012 June 14, 08:59 — mathematics, merch

Baby’s First Klein Bottleā„¢

Not only did it not fall apart in my hands …

Thursday, 2012 June 7, 14:54 — mathematics, merch

first tangible result


The strand — for it is a Klein bottle woven of a single strand — is thinner than I expected, and has broken in at least two places. Ah well, live and learn; I’ve already redesigned it to be more robust.