https://www.gregegan.net/SCIENCE/Steffen/Steffen.html Steffen’s polyhedron is a flexible polyhedron: a polyhedron that can change shape while maintaining the shapes of all its individual faces. It has been proved that no...
https://1-10.github.io/zigsim/ Prototype with your smartphone. ZIG SIM is an application to develop prototypes utilizing sensors on smartphones. Smartphones are getting smarter - they ship with bunch of features...