Gli spigoli del cubo sono colorati con tre colori, in modo tale che spigoli dello stesso c...
Gli spigoli del cubo sono colorati con tre colori, in modo tale che spigoli dello stesso c...
The rotation axis of order 2 which goes through the midpoints of two opposite edges. See a...
The rotation axis of order 4 which goes through the centres of two opposite faces of the c...
One of the 11 possible nets of the cube that is bending in the 3rd dimension to form a cub...
One of the 11 possible nets of the cube that is bending in the 3rd dimension to form a cub...
A cube. Image taken from Giovanni Strüver's memoir Studi sulla Mineralogia Italiana - Pir...
The green straw, laid between the two mirrors that form an angle of 90°, shows the 6 rota...
