@thammerlund Might be interesting to use this: https://t.co/mLQKbIU4h6 I use it for designing spinning tops but could see use in geometry too!— Pana Asavavatana (@PanaAsavavatana) April 12, 2017
via Twitter https://twitter.com/PanaAsavavatana
April 12, 2017 at 08:06PM
