Monthly Archives: May 2013

Sewing r = cos(2θ/3) into my Backpack with Electroluminescent Wire

I recently finished sewing the polar curve r = cos(2θ/3) into my backpack with electroluminescent (EL) wire. It was neat seeing how math, sewing, and electronics could come together in an inexpensive project, so I thought I’d write a short … Continue reading

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