
3 1 c m
40cm
actual image size: 32cm x 23cm
Description
A polyhedron is said to be regular when all its faces are identical regular polygons. There are nine regular polyhedra; the five Platonic solids, seen at the top of the picture, known to the Greeks and named after the philosopher Plato: the two star polyhedra discovered by Kepler; and the two described by Poinsot in 1810.
Image Details
Image Ref.
10302654
© Science Museum / Science & Society Picture Library