Question: What is the name of the biographer and one-time student of this British physicist and mathematician who discovered the Taylor–Proudman theorem along with Joseph Proudman?
Sentence (from "Poynting's theorem"): Poynting's theorem is analogous to the work-energy theorem in classical mechanics, and mathematically similar to the continuity equation, because it relates the energy stored in the electromagnetic field to the work done on a charge distribution (i.e. an electrically charged object), through energy flux.
Relevant evidence: No