Double Pendulum Ring and Bar Posted on 2022/02/21 by Carl Robitaille Double Pendulum Ring and Bar Physics, mathematics, chaos theory, unpredictability.Strange universe. Circle attached to to a stick. Source: https://t.co/PnT68VCUAy pic.twitter.com/GEAjeC1EEd— Cliff Pickover (@pickover) February 16, 2022