My colleague Nick Schmerr (University of Maryland, College Park) posted this photo today, and he was kind enough to let me share it as a Friday fold:
It’s a “type 2” fold interference pattern demonstration for his Structural Geology course — made of paper!
Very cool – I love it when faculty bring physical models into their teaching – the three-dimensional shape of this sheet of paper says more than even the best drawn 2D representation of a complicated fold.
Thanks for sharing, Nick!