First image of the monohedron in virtual reality
(J.P.Petit & C.Tardy)
I invented the monohedron, a polyhedron composed of a single face and a single edge. It therefore has no vertices. It is generated by the rotation of a square, which also rotates on itself. Christophe has represented two positions of this square, in transparency.
See the article dedicated to
the monohedron.