A regular octahedron. You can reconstruct in the mirrors of the kaleidoscope corresponding...
A regular octahedron can be used as a "tile" for various puzzle; we find it when we put to...
An unusual die with 8 faces. It has the shape of a regular octahedron.
A regular octahedron in the kaleidoscope that corresponds to the symmetry group of the cub...
A virtual octahedron reproduced between three mutually perpendicular mirrors..From the exh...
If we put between two perpendicular mirrors this polyhedron, we get a regular octahedron.
The marks on the surface of this regular octahedorn represent the planes of symmetry.Image...
A regular octahedron. Exhibit of Un tuffo nella quarta dimensione - Diving in the 4th dime...
