Helaman Ferguson
I, Helaman Ferguson, Sculptor, math Ph.D., carved this seven ton two billion year old quartz diorite “Invisible Handshake” from South Africa out of a 24 ton block. The mathematical matter is a triply punctured torus now carved with negative Gaussian curvature. The base footprint is a right-angled hyperbolic pentagon which fits into a poincare disc tiling of black and white checkerboard of right hyperbolic pentagons. Helaman’s main hand tool is a sixteen horsepower diamond chain saw; his studio is in Baltimore, Maryland.