The seven friezes are illustrated with simple models realized by folding and cutting a pie...
The picture shows what happens when you put just one ball in a kaleidoscope, which corresp...
The footprints we make by walking on a beach are the most natural example of a frieze of t...
The footprints that we make when walking represent a frieze of type ∞×. You can try ...
a tartoise between two incident mirrors that form an angle of 72: we don't have a kaleidos...
In viale Monza, in Milan, a pavement provides an example of pattern 3*3. This pattern can ...
The picture shows what happens when you put just one ball in a kaleidoscope, which corresp...
A subdivision of the sphere into 48 spherical triangles with angles 45°, 60°, 90°. Exhibit...
Two mirrors angled in a particular way highlight the axes of rotation of a cube. Here two ...
The kaleidoscope of a cube can show that by doubling the side of a cube you get a cube wit...
