Posted in clock hacks Tagged arduino, cern, cesium, chain, invar, pendulum, phase-locked loop, PLL, stepper ← Toroidal Propellers Make Drones Less Annoying ...

You have to admit [Dylan Rush’s] clock is a real swinger. Literally. You’ve seen the desk novelties where an arm with leds mounted on it sweeps out a message? [Dylan] did the same thing… ...

Experience the fascinating mechanics of a fully functional Lego mini pendulum clock that brings real clockwork to life. Every piece clicks together to create a smooth pendulum swing and a precise ...

Inside a cesium atomic clock, cesium atoms are funneled down a tube where they pass through radio waves . If this frequency is just right 9,192,631,770 cycles per second then the cesium atoms ...