Coulomb's law

The physics literate no doubt spotted the problem: the writers have conflated Coulomb’s Law with Newton’s Law of Universal Gravitation.

But Newton’s law deals with very large mass, while Coulomb’s law deals with objects with little mass but large charges.

Also, gravitation is just attraction; Coulomb’s law incorporates both attraction and repulsion.

This, by Coulomb's law, stated above, gives that field-intensity just outside the surface which exists for the actual distribution, and therefore, as can be proved, gives the same field everywhere else outside the surface.

The poles have magnetic charge that closely agrees with theoretical predictions and interact with each other according to the same law that governs the interaction of electric charges, Coulomb’s Law.