Category Archives: Uncategorized

Wrinkles, sandpiles, capitalists, and A. Chervonenkis

Quick links to a few things I’ve read recently. Take an elastic ball and suck some air out of it. What happens to its surface?Experiments by P. Reis and colleagues show that it can do fun things like this: and that it can … Continue reading

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Musical labor

Two examples from Parchman Farm, “the oldest prison and the only maximum security prison for men in the state of Mississippi”, according to WP:   The first one is by Henry (Jimpson) Wallace, and the second one is by Dan … Continue reading

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Geometrica

Just a few geometry-related things I like. Henry Segerman has various math-related creations, one of which is this fascinating visualization of the stereographic projection with a 3D-printed object. This is a candidate in NSF’s visualization challenge; you can see some other candidates … Continue reading

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