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Meta
Category Archives: me!me!me!
elusive avoidance
I’ve been designing printable models of the Lawson-Klein surface w = cos(u) cos(2v) x = cos(u) sin(2v) y = sin(u) cos(v) z = sin(u) sin(v) As you can plainly see, this figure lives in S3 (positively curved 3-space), so stereographic … Continue reading
Posted in mathematics, merch
2 Comments
hidden dragon
For years I’ve occasionally had a mysterious itch at my lowest left rib, nothing showing on the skin. Now it has spread rightward at the same altitude, making me think: could this be mild shingles?
Posted in me!me!me!, medicine
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unapologetically one-sided
My newest design on Shapeways is a model of the Lawson-Klein surface : a stereographic projection of ( cos(u)cos(2v), cos(u)sin(2v), sin(u)cos(v), sin(u)sin(v) )
Posted in mathematics, merch
2 Comments
oddly tempting
I hadn’t noticed before that my webhost offers MediaWiki. Some of the things I write here are not news, really, but things that sorta belong in my permanent exhibition but are too wordy for that page. I’ll think about that.
Posted in me!me!me!
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models of the 35 smallest fullerenes
I noticed that Shapeways had 13 models of the roundest of the fullerenes (one of the 1812 forms of C60), but none of the less regular forms; so I made some. Each of the white pieces has mirror symmetry; the … Continue reading
Posted in merch, sciences
4 Comments
small irregular fullerenes
Shapeways has thirteen models of (the most symmetrical and famous form of) C60, but none of the thousands of smaller fullerenes. So I designed models of the 35 smallest, i.e. up to C36; this includes the smallest with no symmetries, … Continue reading
off by one
A look at 404s in my HTTP log revealed a bug in my math pix page, which in two places chooses randomly from families of images. I didn’t know that the PHP function rand(nmin,nmax) is inclusive at both ends.
Posted in me!me!me!, neep-neep
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