An intriguing and voluptuous representation of the Möbius band (the famous one side, one edge surface). The unique edge of the Möbius band (if you follow it, you will come back to your starting point) is topologically equivalent to a circle. In the Sudanese Möbius band, the edge of the band has been specifically brought around a circle (and the rest of the band follows smoothly). A larger version is available here
The name of the Sue-dan-ese band is a portmanteau of the names of two topologists, Sue Goodman and Daniel Asimov. With two of these you can make a Lawson Klein bottle. The surface has been obtained following the process described on the wikipedia page
: we start from a four dimensional embedding of the band into the 3-sphere S3 (the hyper-sphere living in a 4 dimensional space) and use stereographic projection to map it onto our good old Euclidean space R3. Et voilà !