<< PS, did anybody look at intersecting four cylinders instead of cones? I'm not even sure how many faces this makes (http://gosper.org/face.jpg). Likewise the intersections of 6 and 10 cylinders corresponding to the higherhedra.

...

Don't think I ever calculated the volumes, but was able to figure out the face structure of the four equal cylinders (which could be said to intersect as do the great diagonals of a cube). Same method should apply to the higherhedra. --Dan _____________________________________________________________________ "It don't mean a thing if it ain't got that certain je ne sais quoi." --Peter Schickele