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Is there any value in having a mechanical jumping seconds? In exploring that, we first have to understand how the seconds as a unit of time came to be.
Time in antiquity
In today’s world where no one bats an eyelid when a satellite is sent into orbit, time and space are perceived to be intimately linked as one. Before Einstein hit upon the theory of relativity, the link between space and time was nebulous, but the definition of time was well established.
For the ancient Egyptians, daytime was based on the apparent movement of the Sun, and the night sky was segmented into smaller divisions based on the position and motion of stars. Over the subsequent millennia, the Sumerians and Babylonians further refined the time measurement to better account for stellar motion.
The Babylonians, inspired by the Egyptians, approximated the movement of the Sun’s apparent revolution into 360 divisions, due to the number of days required for the Sun to trace its path on the ecliptic and their predilection for a base-60 (or sexagesimal) system.
https://watchesbysjx.com/2020/05/jumpin ... ained.html
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