As if that weren't enough, pi is used in particle physics experiments, such as those using the Large Hadron Collider, not only due to its round shape, but more subtly, because of the orbits in which tiny particles move.
Kao da i to nije dovoljno, pi se koristi u pokusima fizike elementarnih čestica, poput onih u kojima se koristi veliki hadronski sudarač, ne samo zbog njegova okrugla oblika, nego i suptilnije, zbog orbita u kojima se sitne čestice kreću.