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The decoration on the top of this wardrobe is an example of dihedral symmetry of type D1.
Leaves of black Carpinus (Ostrya carpinifolia), a xxx that can be found in xxx. The leaf, ...
Section of a seashell of Nautilus, a mollusc that had been considered extinct until 1829, ...
A wooden sculpture of the artist Gino Taraboi. From the point of view of topology, it repr...
A compound leaf of Robinia (Robinia pseudoacacia). A photo of the leaf of Robinia pseudoac...
An elm-tree leaf (Ulmus sp.), this plant is easy to recognize thanks to the characteristic...
This blanket represents a map of 24 paired regions; a couple of regions is identified by t...
In Persepolis (Iran), this statue has a prismatic symmetry: here we would see two perpendi...
A Mozambican bag with beautiful examples of friezes. The image appears in the book Il ritm...
"Estudio de hipercubo", 1976, by the artist José María Yturralde. The image recalls th...
