Mathematics comes to the rescue of anyone who wants to make almost any shape “zippable” with a single zipper. This study has details: “Shape Representation by Zippable Ribbons,” Christian Schüller, Roi Poranne, and Olga Sorkine-Hornung, arXiv:1711.02450v1, November 7, 2017. The authors, at ETH Zürich, Switzerland, explain: “We observe that the assembly of complex 3D shapes […]