Wednesday, January 24, 2018

Twist-hinged dissections of polygonal rings & anti-rings: Dodecagonal ring bench to 3 square benches https://t.co/SuHuqVIavd https://t.co/jPy6pUlm6V


from Twitter https://twitter.com/Rainmaker1973

January 24, 2018 at 07:30PM
via IFTTT

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