Any (non-self-intersecting) quadrilateral tiles the plane. (MathWorld image.) Q. What is the strongest known generalization of this statement to higher dimensions? I.e., ...
Hello, this is my first question on Math Overflow... Rhombic dodecahedra can be tiled in 3-space, leaving no gaps. This tiling corresponds to the close-packing of spheres. Consider a "nucleus" ...