The group that made this is The Geometry Center at The University of Minnesota: http://www.geom.uiuc.edu/ http://www.geom.uiuc.edu/ Another one of their videos

The group that made this is The Geometry Center at The University of Minnesota: http://www.geom.uiuc.edu/ http://www.geom.uiuc.edu/ Another one of their videos is "Not Knot": http://www.youtube.com/watch?v=AGLPbSMxSUM http://www.youtube.com/watch?v=AGLPbSMxSUM But I can't find a link to their latest video, called "The Shape of Space". This was made in 2004. I wonder how much easier it would be to do this with 16 years of advances in 3d modeling? I wish it were more common...