MIT physicists and colleagues have for the first time measured the geometry, or shape ... the kind of structure explored by M.C. Escher in his art. That's analogous to a complex, or non-trivial ...

The impossible images of 'unique' graphic artist M.C. Escher come to London (All M.C. Escher works © 2015 The M.C. Escher Company-The Netherlands. All rights reserved) ...