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2019
2078

Hexagonal Cross Stitch

At least year’s Bridges Conference in Stockholm, I attended a short presentation by Susan Goldstine about “self-diagramming lace” . As motivation for the new work she was presenting, Susan referenced her paper from the year before on what she calls “symmetry samplers” . Samplers are an old tradition in fibre arts. A…

2095

Tickling (2018)

Before our kids learned to talk, I would play tickles with them. I would make tickling gestures as I moved towards them, they would start giggling a little, then I would tickle them and they would laugh. We'd continue until they seemed to be done with the game, and then we'd move on to something else. As they got…

2096

US Army applying new areas of math

Many times on this blog I've argued that the difference between pure and applied math is motivation. As my graduate advisor used to say, “Applied mathematics is not a subject classification. It's an attitude.” Traditionally there was general agreement regarding what is pure math and what is applied. Number theory and…