Facts & News 🧠 on Instagram: "Follow (us) @FCTS to learn something new everyday 🧠 What you’re seeing is a physical demonstration using 15 uncoupled pendulums, each built with a slightly different length. Because pendulum frequency depends on length, each one swings at its own pace. All are released at the same moment, but their tiny frequency differences cause the group to drift in and out of sync. The longest pendulum completes 51 oscillations per minute, and each shorter one completes exactl