Investigate the influence of the sun and moon on the earth’s tides

Before we get started, let’s understand how tides work.

The daily high and low tides are mainly caused by the moon. Although the mass of the moon is smaller than that of the sun, its tidal force is about 2.17 times higher than that of the sun, so astronomers believe that the movement of the moon mainly affects the ebb and flow of ocean tides. The tide is very punctual, it is almost as accurate as the clock, the moon takes 24 hours and 48 minutes to go around the earth, and the cycle of the tide is also 24 hours and 48 minutes. Naturally there are two ups and downs.

The sun also has an effect on the tide. For example, when the sun and the moon are at right angles, the gravitational force of the moon is greater than the gravitational force of the sun. High tides occur when the sun and moon are in line or appear on the same side of the earth.


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