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Meteorology relies heavily on a spherical model of the earth. If you consider one of the major "forces," the Coriolis force, it is derivable only from a spherical earth. Now, there are planar representations, where the earth's curvature has a negligible effect, such as mesoscale meteorology or micrometeorology. A sphere also has modeling advantages ...


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Like Fred said, this probably belongs on Astronomy SE, but I'll give my best answer anyways. No, the sun and moon do not take the same path each day. The key to understanding this is knowing that the earth is tilted 23.5$^\circ$. Let's take an example- the arctic circle. On the summer solstice, the sun doesn't set- It goes around and around (called the ...


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