The 120-cell, like the 3-sphere, is the union of these two (Clifford) tori.
A flat torus can be isometrically embedded in three-dimensional Euclidean space with a C1 map (by the Nash embedding theorem) but not with a C2 map, and the Clifford torus provides an isometric analytic embedding of a flat torus in four dimensions.
Clifford Evans | Clifford Odets | Clifford Geertz | Clifford Jordan | Clifford Harper | Clifford Edmund Bosworth | Clifford Curzon | Clifford Chance | Clifford | William Kingdon Clifford | Max Clifford | Clifford the Big Red Dog | Clifford D. Simak | Baron de Clifford | Paul Clifford | Clifford Last | Clifford Grey | Clifford algebra | Baron Clifford of Chudleigh | Nathan Clifford | Natalie Clifford Barney | Clifford torus | Clifford Sifton | Clifford Meth | Clifford J. Levy | Clifford Grant | Clifford Algebra | Clark Clifford | Sir Charles Clifford, 1st Baronet | Robert de Clifford, 1st Baron de Clifford |