When they made the first clocks, how did they know whether they were accurate?

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They had nothing to compare the clocks against, and I don’t think the stars and the sun would have made an useful target for comparison.

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Anonymous 0 Comments

Only with observation of shadows, then with what are today basic math, geometry and tools you can go a long way. I think stonehenge shows precisely where the sun will set on the day of the solstice? Given that the clock has to show the same time in 1 year from now, you’ll have to divise time in a way to mark each year, each midday, each midnight, why not ad month to it, and prove its accuracy through tests. Basic math but some commitment I guess

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