Tombe, Frederick David
Mechanics / Electrodynamics
January 18, 2020
Maxwell's displacement current, aether, vortices, electromagnetism, electromagnetic radiation, electromagnetic wave equation, displacement current, wireless telegraphy, magnetization, linear polarization, electron-positron aether
Displacement current is central to starlight in outer space, yet its theoretical justification in textbooks is confined to the restricted context of the space between the plates of a terrestrial electric capacitor. This article will examine how James Clerk Maxwell originally introduced the concept back in the nineteenth century. The modern textbook derivation will then be explained, followed by a detailed investigation into how displacement current relates to electromagnetic induction and electromagnetic radiation in deep space, far away from any laboratory electrical apparatus.