In his "Two New Sciences", Galileo uses the problem of the wheel to argue for a certain kind of atomism. Galileo begins his analysis by considering a pair of concentric hexagons, as opposed to a pair of circles. Imagining this hexagonal wheel "rolling" on a surface, Galileo notices that the inner hexagon "jumps" a little space, with each roll of the outer hexagon onto a new face. He then imagines what would happen in the limit as the number faces on the polygon becomes very large, and finds that the little space that is "jumped" by the inner polygon becomes smaller and smaller, writing: