Shadow Stereographic Projection: 3D printed sculptures that cast geometric shadows. When illuminated by a point source of light (placed at the top pole of the sphere) the shadow cast by the rays of light represent a one to one mapping of the points on the sphere to points on the plane- creating a square grid, and a honeycomb of regular hexagons. Stereographic projection is often used in representing the geography of the globe of our planet on to a flat map. Some of the fantastic 3D printed mathe

Stereographic Projection - We created this animation to show how a stereographic projection maps points from a sphere onto a plane, preserving angles while transforming curved, three-dimensional geometry into a two-dimensional representation where infinity emerges at a single point. | The Brain Maze

Visual proofs are always the best ones, In this case, stereographic projection mapping circles to circles | Visual Math