CERN Engineer Locks 1950s Pendulum Clock to Atomic Clock for Unprecedented Accuracy
2025-01-04
A CERN engineer acquired a vintage Elektročas HH3 pendulum clock from the 1950s, boasting an accuracy of 0.1 seconds per day. To push the limits further, he embarked on a project to synchronize it with CERN's cesium atomic clock. The innovative solution involved a Chain Controlled Oscillator (CCO) which subtly alters the pendulum's center of gravity, controlled by a Phase Locked Loop (PLL) to maintain synchronization. Tests demonstrated remarkable improvement in accuracy, even detecting the perturbation caused by the recent Turkey earthquake. This project showcases a blend of meticulous engineering, ingenious innovation, and a quest for extreme precision.