Light with steel
Around 500 B.C. the Greek philosopher and mathematician Pythagoras and his followers discovered these 5 regular solids. There exist only 5 regular solids defined as symmetrical, three-dimensional forms whose sides are made up of the same regular polygon.
These shapes fascinated the Pythagoreans. Four of the solids were given identities with the 4 “elements” that at the time were Earth, Fire, Water, and Air. The fifth element they decided must correspond to the substance of heavenly bodies or the unknown, mystically referred to as the Cosmos.