Tetrahedral Websites:
tetralite.com
TetraLite Products
Plans for ultra-lightweight collapsible multi-cell tetrahedral kites
neubert.net
Dr. Neubert's Website: Welcome! Entropy Reduction Laboratory
PSE: Double Shell Periodic System of Elements; FlashSort: O(n) sorting by in situ permutation; Platonic, Geodesic, Spheres; 3D Crystal Structures; 3D...