bodymind gym

Was in tumbling gymnastics today ("adult gym" at Gymkhana): first introduction to the "mushroom" (see expert video below); the movement of hands (in relation to feet) in this apparatus reminded me of the famous proof Einstein's general relativity via "precession of the perihelion of an orbit" (also, I think, known as apsidal precession, basically a situation where elliptical orbit gradually rotates around (see another image below). Gymnastics and physics - the original bodymind education.