Favorite tweets July 28, 2016 at 04:59PM

Polar 3D Printer: Build Your Math https://t.co/DZaVaPMlFl http://pic.twitter.com/S5acyByWKQ

— Alice Keeler (@alicekeeler) July 28, 2016

via Twitter https://twitter.com/alicekeeler

July 28, 2016 at 04:59PM