Lunar Gravitational Differential: Tidal Forces as a Manifestation of Inverse-Cube Field Gradient

月球引力差：潮汐力作为反立方场梯度的体现

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Tides result not from the Moon’s gravitational pull per se, but from the *difference* in that pull across Earth’s diameter—a gradient governed by the inverse-cube law, not Newton’s inverse-square law.
The side of Earth nearest the Moon experiences 6.9% stronger attraction than its center, while the far side feels 6.7% weaker—creating two opposing bulges in the oceans.

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