Three Spheres

Referring to the topmost stacked sphere Escher said he had tried to suggest three-dimensionality as powerfully as possible. But, he added, the sphere is only a projection on a sheet of paper. If you cut out the shape it is a flat disc, just like the one at the bottom of the stack and the top side of the halved sphere in the middle.

Three Spheres

Referring to the topmost stacked sphere Escher said he had tried to suggest three-dimensionality as powerfully as possible. But, he added, the sphere is only a projection on a sheet of paper. If you cut out the shape it is a flat disc, just like the one at the bottom of the stack and the top side of the halved sphere in the middle.