Abstract

Faraday?'s law of electromagnetic induction and Kepler'fs law of areal velocity are two manifestations of a single principle which requires two distinct phenomena for its full understanding. The former is an expression for the rate of change of angular momentum, with particular reference to the sea of tiny molecular vortices which acts as the domain of the electromagnetic field. The latter expresses conservation of angular momentum in situations in which there is no net tangential force in that same sea of molecular vortices. The single principle which lies behind these two laws needs to be split into two distinct phenomena for the full understanding of the principle. These two phenomena are Coriolis force vXH and angular force ??A/??t. The Coriolis force that is observed in all vortex phenomena is a constituent part of the general principle that underlies both Faraday?'s law and Kepler'fs second law. It is a hydrodynamical effect.