Touching is believing

20150519_180540At a workshop I was at in Princeton in April, one of the speakers illustrated a rather beautiful state of matter called the gyroid phase, by passing round a 3D printed model of this state of matter. I was instantly both impressed and envious. There is a cool gif of the gyroid here, but holding a model in your hands and turning it over to see it from all angles, is better than any picture on a 2D screen.