Reflection Symmetry Sculpture http://physicstoys.blogspot.com/p/physics-toy-store.html Precision etched into only one corner of a triangular prism, multiple reflections within the optical grade glass create the 3D lighthouse with hexagonal cross section. The top of the prism is cut and polished to allow a bird’s eye view as well. Fun use of symmetry and geometry in this optical crystal sculpture series by Steinbach. ➡️ Follow the link above for info bon where to get this and other amazing items