Current hula hooping craze has even reached hallowed halls of ivy. At South-western College in Memphis, Tenn., President Peyton N. Rhodes utilizes the physics he formerly taught to whirl the hoop. He explains how it’s done: "It is merely necessary to exert a small, but carefully regulated impulse by allowing a hypersensitive sacroiliac to impinge on a small portion of the interior periphery of a short section of hoop.”