He was actually one of the pioneers of the idea of an electric universe. He didn't believe that the gravitational force is the main force in the universe, but the electric force. Therefore he made several experiments to verify this, and to his astonishment he could explain with his electric model, all the effects, that others couldn't. Sadly the scientific community first mainly just laughed at him. Only after several years, and after NASA launched some satellites to measure the currents in the outer space, they realized, that his theories were actually correct.
In this relation I can really recommend buying the book:
The Electric Universe by Wallace Thornhill and David Talbott
As it actually describes the electric effects of the universe, as seen today, but still neglected by main science...
And the funny thing is, all that you see in this book, is actually just a verification with modern pictures of what Dr already said in the Universal One.
E.g. what I find especially interesting are the currents flowing from the sun equator to the earth poles. Scientists always didn't really wanna believe this theory of Birkeland until in 2007 a NASA Satellite definitely proofed, that they do exist. They measured a stream of about 650'000 Amperes at 30kV.
And what we know and see in the universe, these currents flow in space from the sun to earth in current ropes which coil around themselves.
And now, let's look at The universal One page 225.
And you will see, that this is exactly what Dr drew!!! He even drew the "itself coiling" of the ropes!
So you see, the things he explains, are not just some abstractions of something, they are really exactly the truth!
(When I first read the universal one I thought these ropes he drew are just some symbolic links, but as we now know, these are actually really existing.)