Originally Posted by

**Ammah**
Thank you, I feel I should clarify the question a bit:

1. I know how to derive the wave equation with speed c from Maxwell's equations. But I'd like to know if there's another approach to see that Maxwell's laws DO express the limitaion on the ability of information to propagate no faster than light, as opposed to coulomb's law which doesn't.

2. My focus on Gauss' law is in its implementation on a sphrical shell, using the divergence theorem, to derive a formula which is identical to Coulomb's law. i would very much like to know if when doing that onelimits the case to static states, thereby waiving all the fundamental difference between Gauss' law and Coulomb's law, and emptying Gauss' law from its advantage.

thank you in advance