Dodecahedral trajectory: https://mathemalchemy.org/2021/01/19/dodecahedral-trajectory/
Mathematical glass artist Bronna Butler visualizes closed geodesics from and returning to a single vertex on the dodecahedron, using stained glass. These paths exist only on the dodecahedron, among the Platonic solids: geodesics starting from a vertex on the other solids will either hit another vertex before returning, or never return.
The social network of the future: No ads, no corporate surveillance, ethical design, and decentralization! Own your data with Mastodon!