M. C. Escher reported that the hand is able to execute surprisingly minute, controlled movements if the eye could but see. He would use a series of magnifying glasses to do the tiny figures in his Circle Limit series and others. In Crab I tried Escher's advice. Enhancing my vision with magnifying glasses, I was able to make tinier drawings than I had imagined possible. But still, compared to Escher, my draftsmanship is inept.
Tessellation Strictly speaking tessellations are tiles that cover the plane without gaps or overlap.
I extend this idea into three dimensions though. I also label tesselations polyhedra that stack to fill space without gaps or overlap. Tessellations, My Blocks Vs Zaks Toys that tessellate have the power to approximate any shape. This page discusses this power and also contrasts my block with a similar toy that does not tessellate as well as Delta Blocks. This page discusses my toy which was inspired by M.C. Escher's print Flatworms.