Discusses double shell structured periodic systems, platonic spheres, molecular and crystal structures, and FlashSort algorithms.

Web site for the (now closed) Center for the Computation and Visualization of Geometric Structures at the University of Minnesota. Graphics, multimedia, software, teaching resources.

Offers a variety of resources for teaching and learning about geometry. Problems and theorems are presented with step-by-step solutions for each proof.

Graphical representations of computer generated forms. (French/English).

Shows paper models of polyhedra.