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A uniform polyhedron of type (3,4,4,4): around each vertex there are an equilateral triang...
A uniform polyhedron of type (3,8,8): around each vertex there are an equilateral triangle...
The green straw, laid between the mirrors that form an angle of 90°, shows the 6 rotation...
Boccia di ferro inciso per il gioco della pétanque, proveniente dalla Tunisia. Le incisio...
If you insert three straws in the kaleidoscope of the cube, you get the Schlegel diagram o...
Il cubo ha nove piani di simmetria, cioè ci sono nove diverse maniere per tagliare un cub...
Il cubo ha nove piani di simmetria, cioè ci sono nove diverse maniere per tagliare un cub...
A cube in a square in Porto (Portugal). The vertical axis is the rotation axis of order 3 ...
A stella octangula, in the kaleidoscope corresponding to the symmetry group of the cube. W...
An octahedron, in the kaleidoscope corresponding to its symmetry group. You can see an oth...
