The physicist in the video is Eric Rogers, who wrote a good physics book from a historical perspective. The book is entitled Physics for the Enquiring Mind.
The video shows some evidence from which we induce Coulomb’s Law. Could be better, could be worse. But at least they give reasons for the law, and do not throw it at us out of nowhere, as too many modern texts and teachers do.
Good to be able to see Dr. Rogers in person. The wonders of modern technology.