In geometry, the 600-cell is the convex regular 4-polytope with Schläfli symbol {3,3,5}. It is also known as the C600, hexacosichoron, hexacosihedroid and hypericosahedron. It is also called a tetrapl
100 tetrahedra in a 10×10 array forming a Clifford torus boundary in the 600 cell. Its opposite edges are identified, forming a duocylinder.
A 4-dimensional ring of 8 face-bonded tetrahedra, seen in the Boerdijk–Coxeter helix, bounded by three eight-edge circular paths of different colors, cut and laid out flat in 3-dimensional space. It contains an isocline axis (not shown), a helical circle of circumference 4𝝅 that twists through all four dimensions and visits all 8 vertices. The two blue-blue-yellow triangles at either end of the cut ring are the same object.