Monthly archives for February, 2014
Knotted Needles Make Knitted Knots
A wearable, knitted (5,3) torus knot. Image: sarah-marie belcastro.
Step aside, infinity scarves, you aren’t infinite at all. The (5,3) torus knot cowl is where it’s at.
For me, one of the highlights of January’s Joint Mathematics Meetings was the mathematical fiber arts session. You can view a slide show I put together from [...]
The Stunning Symbiosis between Math a...
Temari is a traditional Japanese art form that often uses geometrically inspired designs. Yackel’s temari balls show spherical versions of geometric shapes based on the five Platonic solids. Artist: Carolyn Yackel.
I have a slide show up at Scientific American with pictures of some of the beautiful mathematical needlework I saw at the J [...]
Why Should We Fund Math Research?
Image: Nick Eres, via flickr.
Cathy O’Neil of mathbabe.org has been writing about how MOOCs might change the face of math departments and, ultimately, how math research gets funded. O’Neil is concerned that without calculus classes to teach, math research funding could dry up unless we do a better job convincing the public and funding agencie [...]
Hyperbolic Quotes about Hyperbolic Ge...
“The treatise itself, therefore, contains only twenty-four pages—the most extraordinary two dozen pages in the whole history of thought!”
This Hungarian postage stamp does not depict János Bolyai. No portraits of him survive. For more information about the “real face of János Bolyai,” click the picture to read Tamás Dé [...]
Mistakes Are Interesting
Image: Aaron Rotenberg, via Wikimedia Commons.
Last semester, the most frustrating (at least to me) mistake my students made on their first midterm was saying that if a set was open, then it wasn’t closed, and vice versa. They sometimes even came to the conclusion that Rd was neither open nor closed because it was both open and closed! That m [...]
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