And here is another attempt with a different tool; now the total u+v+w can be fixed: http://seb.perez-duarte.net/geometry/3_torus-geogebra.html By right-clicking on the red points, it is possible to turn the "trace" on and see where the other points end. Here are the resulting images when u+v+w is close to 0, 1, 2 or 3. http://flickr.com/gp/sbprzd/35MVC0 Cheers, Seb On Mon, Sep 13, 2010 at 18:15, Seb Perez-D <sbprzd+mathfun@gmail.com> wrote:
Based on George's setup I've put the following Java application that displays the points moving (try moving u,v, or w).
http://seb.perez-duarte.net/geometry/3-torus.html
So far I could not fix the point u+v+w.
Best,
Seb
On Mon, Sep 13, 2010 at 03:55, George W. Hart <george@georgehart.com> wrote:
Jim,
I made a simple mockup of the idea by printing linkages onto a laser-printable transparency, cutting them out, punching some holes, and pinning it together with small nuts and bolts on a scrap of cardboard.