Question

What was the first clock?

Answer 1

Answer:

sand clock

Explanation:

one of the ancient clock

Answer 2

Answer:

pendulum clock,

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Explanation:

The first invention of this type was the pendulum clock, which was designed and built by Dutch polymath Christiaan Huygens in 1656. Early versions erred by less than one minute per day, and later ones only by 10 seconds, very accurate for their time.