why is the third hand on a watch called second hand?
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Answer:
In some precision clocks, a third hand, which rotated once a minute, was added in a separate subdial. This was called the "second-minute" hand (because it measured the secondary minute divisions of the hour), which was shortened to "second" hand.
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Step-by-step explanation:
In some precision clocks, a third hand, which rotated once a minute, was added in a separate subdial. This was called the "second-minute" hand (because it measured the secondary minute divisions of the hour), which was shortened to "second" hand.
What are the three hands on a watch called?
the thing that points to the hour on a clock or watch. The thing that points to the minute is called the minute hand, and the thing that points to the seconds is called the second hand.
Why is 12 at the top of the clock?
The reason a new day starts at 12:00 goes back to ancient Egypt when the day was measured using sundials. The shadow on the face of a sundial tells the time, and the shadow depends on where the sun is in the sky. "When the sun is highest overhead and the shadow goes straight up to the top of the sundial, that's noon