>"We learn that the force between two charges, two magnetic monopoles, or two masses all follow an inverse square law, however, most of the time, the scientific reader is not made aware of an important assumption, that of being able to model these entities as point objects. If the entities cannot be reduced to a point, then, the inverse square laws cannot be applied. As I shall mathematically show, the inverse square law changes into an inverse cube law approximation for the case of dipoles. In practice, a physicist finds that most of real life applications cannot be modelled by point entities, but only by dipoles."
>"We learn that the force between two charges, two magnetic monopoles, or two masses all follow an inverse square law, however, most of the time, the scientific reader is not made aware of an important assumption, that of being able to model these entities as point objects. If the entities cannot be reduced to a point, then, the inverse square laws cannot be applied. As I shall mathematically show, the inverse square law changes into an inverse cube law approximation for the case of dipoles. In practice, a physicist finds that most of real life applications cannot be modelled by point entities, but only by dipoles."
http://blazelabs.com/inversecubelaw.pdf