A lace with dihedral symmetry group, of type D2.You can see an other one.
Unicellular alga covered in silica. The photo of this diatom seen under an optical microsc...
This drawing has been used for an exhibit of Simmetria, giochi di specchi - Symmetry, play...
The decoration on this piece of furniture in the castle of Gruyères (Switzerland) represe...
A carpet made with gold threads and gems in a factory of carpets in Agra (India). The real...
A rosette with symmetry D2 reproduced between two mirrors at 90°: if we don't consider th...
Some rosettes on the facade of the Civic Museum of Natural History in Milan, in corso Vene...
Pictured boxes (used as trunks or pieces of forniture) sold in a bazaar on Sunday in Kashg...
In a side-road of avenue de Iena in Paris, we can see a rosette with dihedral symmetry D2.
Un'inferriata con una simmetria diedrale, di tipo D2, la stessa di un rettangolo.
