It's a well understood shape, but we're happy to see a teenager playing and learning. It has a particularly cool region in its configuration space where it can

It's a well understood shape, but we're happy to see a teenager playing and learning. It has a particularly cool region in its configuration space where it can be bistable: https://journals.aps.org/pre/abstract/10.1103/PhysRevE.93.033005 https://journals.aps.org/pre/abstract/10.1103/PhysRevE.93.03...