Magnetism is the only force that decays at distance cube.
If the hypothetical magnetic pole of the earth is 0.6 Gauss, how can there be a magnetic field of 0.2 Gauss at the equator? It's impossible.
Sunlight moves westward around the Earth, creating a weak current that causes compass needles to point north. Due to the smaller circumference, this weak current becomes stronger near the poles, producing auroras.
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