Fashioning special tools for the fabrication of plastic models of minimal surfaces was just one of several tasks he performed with unfailing skill and ingenuity. One of the first published examples of such an application describes how the gyroid serves as a template for self-assembled periodic surfaces separating two interpenetrating regions of matter.
I owe special thanks to the architect Peter Pearcewho in demonstrated for me his concept of saddle polyhedron.
Eversion of the Laves graph The Laves graph is triply-periodic on a bcc lattice and chiral. I describe some of the chance events in and that led to my three-year immersion in this study, in which I was guided by both mathematics and physical experimentation.
It is of interest for a variety of reasons, not least because a left- and right-handed pair of these graphs an enantiomorphic pair are the skeletal graphs of the two intertwined labyrinths of the gyroida triply-periodic minimal surface or TPMS cf.
Van Attawho was the associate director. Because the Laves graph is one of the rare examples of a triply-periodic.
The stereoscopic version of the movie was subsequently lost, but a non-stereoscopic version that did survive is included in this videostarting at about 3m35s after the beginning.
If you view these frames stereoscopically, you may see at least a suggestion of the self-intersections that occur at bending angles different from those for D, G, and P. It contains links to the contemporary mathematical and scientific literature.
Coxeter at the University of Toronto. The evidence for my claim that the gyroid is embedded included a computer-generated movie of Bonnet bending of the surface and also a physical demonstration of such bending, using thin plastic models of the surface.
Two months later, I had the good luck to be visited by the geometer Norman Johnson, who had just completed his mathematics PhD under Prof. In SeptemberI began a collaboration with Ken Brakkewho makes precise mathematical models of minimal surfaces with Surface Evolverhis powerful interactive program.Triply-periodic minimal surfaces This is an illustrated account of my amateur study of TPMS, aimed at both beginner and specialist.