21. In this case no approximation is valid, and reflection can be calculated by solving Maxwell equations numerically. 22. Both of Kirchhoff's laws can be understood as corollaries of the Maxwell equations in the low-frequency limit. 23. It is a standard result from the Maxwell equations of classical electrodynamics that an accelerated charge radiates. 24. But recall that the conformal group on Minkowski spacetime is the symmetry group of the Maxwell equations . 25. And in the Maxwell equations , the field variables will be expressed in terms of the source current densities. 26. Then, to obtain an approximate electrovacuum solution, we need only solve the Maxwell equations on a given vacuum solution. 27. :Maxwells equations can explain this, these are from Faraday's law of induction and Amp�re's circuital law with Maxwell's correction. 28. The Maxwell equations allow you to calculate the speed of light without specifying an observer who measures this speed. 29. Similarly, pretty much everything that became encapsulated in the Maxwell Equations could have been discovered and published in 1807. 30. The key is to realize that the laws of electrodynamics, the Maxwell equations , hold only in an inertial frame.
