There's a simple trick to hanging a wall clock: Use your ears, not your eyes, to level it.. The ticktock of the swinging pendulum should have a smooth, even rhythm to it and not be off-beat. If you ...

Hang two pendulum clocks on the same wall, and over time, something strange will happen: the two clocks will tick in synchrony. Renowned Dutch scientist Christiaan Huygens, the inventor of the ...

Pendulum clocks made by Mexican clock manufacturer Relojes Centenario were used to investigate the mechanisms behind synchronization. The 350-year-old mystery of why pendulum clocks hanging from the ...