The emission of electromagnetic waves is sometimes explained by drawing field lines that "kink" when the charge is accelerated. The kink is then said to be an EM wave.
The kink formation are explained by the far field not adjusting instantaneously to the move in the charge emitting the field.
I do not understand why that would be the case when the charge accelerates and not when the charge is moving at constand speed. In both cases there has to be a delay in the far field adjustment and therefore an EM wave. Could you please explain what I am missing in this visual explanation of why EM are emitted only when the charge is accelerating ?
source see also https://youtu.be/6lb040GCs2M?t=735
