The second only became important when society became interconnected through fast-moving railways where cities needed to agree on exact timekeeping.
By the 1950s, several global systems required every second to be accounted for with as much precision as possible.
Today, devices are synchronised to help us maintain a globally consistent time, from radio signal transmitters to satellites for global positioning systems.
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The historical significance of urban centers
The impact of cultural and technological advances
The role of urban centers in shaping society
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