The Source Of Electromagnetic Radiation - Lesson 2

[jb_]

Best EM videos on youtube! Awesome work!

[cledieu]

Big Aha moment. The single charge position derivatives of subsequent orders never vanishing for sinusoïdal functions really nailed it for me. Awesome explanation. Thanks a bunch.

[ganeshingale]

you deserve billions of views...thanks

[vkfe]

Thanks for this immaculate explanation.

[daonguyen]

omg, you are the best. Really clear explanation. I am now understand the E and B field radiation

[mgx]

This is how I have always imagined EM waves to work. E causing H and vice versa. This should mean there's a phase shift of +/-90 deg between E and H, because when one is at its peak, the derivative is 0 (like sine and cosine).
BUT, as it has recently occured to me after many years, in an EM wave both E and H have the same phase (in a vacuum). This is stated and depicted in many sources, but I haven't found a clear explanation as to why. Supposedly this is the solution of Maxwell's equations and there's no causal link between E and H. I am really confused.