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{{Infobox paper
{{Infobox paper
| title = Hertz? Equations of Electrodynamics
| title = Hertz' Equations of Electrodynamics
| author = [[Thomas E Phipps]]
| author = [[Thomas E Phipps]]
| keywords = [[Hertz? equations of electrodynamics]], [[invariance]], [[Maxwell?s equations]], [[moving detectors]], [[partial time derivative]], [[total time derivative]]
| keywords = [[Hertz? equations of electrodynamics]], [[invariance]], [[Maxwell?s equations]], [[moving detectors]], [[partial time derivative]], [[total time derivative]]

Revision as of 20:47, 20 July 2026

Scientific Paper
TitleHertz' Equations of Electrodynamics
Author(s)Thomas E Phipps
KeywordsHertz? equations of electrodynamics, invariance, Maxwell?s equations, moving detectors, partial time derivative, total time derivative
Published1997
JournalElectric Spacecraft Journal
Number22
Pages14-23

Abstract

Maxwell?s equations of electrodynamics are only special-case formulae of more generalized equations published in 1892 by Heinrich Hertz. Maxwell?s equations were derived for scenarios involving a stationary detector. Consequently, only a partial time derivative was taken, and so the measured current density was equal to the current density measured at the source. An important implication of Hertz? invariant, general equations of electrodynamics is that there is no space-time symmetry.