A Brief History of Timekeeping

The video explores the evolution of timekeeping from ancient sundials to modern atomic clocks. It explains the concept of leap seconds, added to synchronize clocks with Earth's irregular orbit. The development of mechanical clocks, pendulums, and escapements is discussed, highlighting challenges faced by sailors in navigation. The invention of quartz and atomic clocks revolutionized accuracy, leading to a redefinition of the second. Future advancements like optical clocks promise even greater precision.

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