How to Fold It: The Mathematics of Linkages, Origami, and Polyhedra - Joseph O’Rourke - Google Books

https://books.google.de/books?id=EbwNKD0xkUwC

What do proteins and pop-up cards have in common? How is opening a grocery bag different from opening a gift box? How can you cut out the letters for a whole word all at once with one straight scissors cut? How many ways are there to flatten a cube? With…