Three Triply Periodic Minimal Surfaces

Curvahedra

A modular construction system based on the Gauss-Bonnet theorem — identical curved pieces that zip together without glue to form spheres, toruses, and other surfaces. Began as a paper puzzle, funded via Kickstarter in 2016, and became a commercial product at curvahedra.com. The same geometry underlies the Gearhart Hall courtyard sculpture and the Zip-Form fabrication system.

Spira-gyroid

A large-scale barn-raising at the 2015 Joint Mathematics Meetings, in which participants collaboratively assembled the Spira-gyroid — a physical model combining the geometry of a spiral with that of the gyroid minimal surface. Barn-raisings at JMM are events where mathematicians and the public build a large geometric structure together, with the assembly process itself as part of the work.