From the Google machine: Voronoi diagrams were considered as early as 1644 by philosopher René Descartes and are named after the Russian mathematician
Georgy Voronoi, who defined and studied the general n-dimensional case
This type of diagram is created by scattering points at random on a Euclidean
plane. The plane is then divided up into tessellating polygons, known as cells, one around each point, consisting of the region of the plane nearer to that point than any other. The plane(s) can be curved or folded in any way the designer wishes resulting
in some truly beautiful objects.