How Did the First ‘Clocks’ Work and Why Were They Invented?

Imagine a big round thing with numbers on it, and two hands that move slowly, one moves fast, the other moves slow. That’s like an ancient clock! People made these clocks because they wanted to know when it was time for work, meals, or sleep. The first clocks were called sundials, and they used sunlight to show the time.

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Examples

  1. A sundial is like a shadow that moves on a number line as the sun travels across the sky.
  2. A water clock works like a slow, steady drip from a cup, each drop counts as a second or minute.
  3. You can use your hands to tell time like an ancient person if you know how the sun moves.

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