Joachim and I drove down from L.A. for the Saturday. There were various exhibits and events spread over several sites. Of the exhibits, most inspiring was probably the domes put out on a lawn in Balboa Park. Some people were in the process of constructing a 30ft diameter geodesic dome. It was all made of wood triangles, all the same size, bolted together in hexagonal shapes, and so forth, to form a whole half sphere.
Nothing holds the joints together, the strength is in the shape itself.
And, incidentally, this one was all made of scrap wood from the dumpster of some construction site. I understand that these people are available to build dome houses at very affordable costs. Not really geodesic domes, but at least they fit the maxim of doing more with less. Each one costs about 6000 dollars, and they have been known best for providing homes for homeless people. I believe a number of these have been put up close to downtown L.A. for that purpose.