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A {23}×{29} duoprism, showing edges in stereographic projection. The squares make a 23×29 grid flat torus.
A {23}×{29} duoprism, showing edges in stereographic projection. The squares make a 23×29 grid flat torus.
Small and great stellated dodecahedron from Harmonices Mundi by Johannes Kepler
Small and great stellated dodecahedron from Harmonices Mundi by Johannes Kepler