A film of soap with the shape of a helicoid. The helicoid is the only minimal surface whic...
The floors at the Certosa di Calci (a monastery near Pisa) often have a 3D effect. The pic...
The floors at the Certosa di Calci (a monastery near Pisa) often have a 3D effect. The pic...
We can cut a torus along a simple, closed curve and it won't divide in two parts. See also...
Michele Ciribifera's helicoid (300 x 300 x 300 *×, wood, steel and gold wires) at the ent...
A drawing that can be reconstructed in a mirror box. Exhibit from Simmetria, giochi di sp...
A drawing to reproduce in a square room of mirrors. The symmetry of this scheme is 4*2; yo...
A drawing to reproduce in a square room of mirrors. The symmetry of this scheme is *442; y...
