A rather unusual dice, shaped like a regular icosahedron, with 20 faces.
At the park Groane (Milan): a leaf of maple evokes a dihedral symmetry of type D1.
If you look at them closely, you can see that the wheel hubs of this car have a cyclic sym...
The napkins used at the Bar Mida, in Milan in via Botticelli. They have a decoration with ...
The napkins used at the Bar Mida, in Milan, in via Botticelli. They have a decoration with...
A manhole cover in Paris with cyclic symmetry, of type C12.You can see an other one.
This chessboard is an example of a rosette with a dihedral symmetry, of type D4.
This lamp has a prismatic symmetry group; seen from below it gives the idea of a rosette w...
