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Lo spezzamento di un cubo in un tetraedro regolare e 4 tetraedri, non regolari, con vertic...
Regular polyhedra.Exhibit of Un tuffo nella quarta dimensione - Diving in the 4th dimensio...
The 5 regular polyhedra in wood. From a collection of solids ordered by the engineer Felic...
Cubes and octahedra are dual polyhedra. The centres of the faces of an octahedron are vert...
Dodecahedron and icosahedron are dual polyhedra: the centres of the faces of a icosahedron...
A regular tetrahedron, made of 4 triangles. You can see a net. How many triangles do we ne...
The green straw, laid between the two mirrors that form an angle of 90°, shows the 3 rota...
A stella octangula in the kaleidoscope of the cube. From the exhibition Simetria, jogos de...
The stella octangula is made of two tetrahedra that are disposed in such a way that their ...
A Stresa, all'ingresso di una villa, un cubo in posizione "anomala". Si può vederne un'al...
