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RE: Science answers why your weight varies depending on your location on earth and why the pendulum clock is slower at the equator
I actually thought the earth is geoid.. According to what my geography teacher taught me.
Geoid is one of the models used in the description of earth's shape in a process known as geodesy.
Sounds interesting.. I haven't even looked up geoid till now 😂. He told us the earth was a combination of a circle with the top and the bottom shaped in a flat manner which could be called geoid.