Charles, thanks for that link [] for critiques of Mathis, but [it] is not scientific [].

You guys' criticisms of Mathis are fine, but they still seem minor to me so far. Since I'm not an expert, 1/s^2 doesn't seem necessarily irrational, since 1/s isn't irrational, as it means frequency. 1/s^2 could mean frequency per second or something. I don't imagine density could be frequency per second, but, again, not being an expert, I'm open-minded. It's conceivable to me that Mathis may be wrong about mass = L^3/T^2, but I believe he got that from Maxwell (I see Tharkun has just provided some details on that), although I don't know if he explained well how it makes sense.

Dewey Larson was an engineer who wrote books in the 1980s about everything in the universe consisting of motion, s/t, with s and t being to the power of 1 to 3. Maybe he got that from Maxwell too. He said there are 3 dimensions of space and 3 of time. He called his theory the Reciprocal System, meaning everything consists of a reciprocal relation between space and time. And that seems to make sense. Mass has an effect on motion, and it could be a motion somehow, as far as I know. Larson also had the idea, like Mathis originally did, that gravity is due to universal expansion. I read his books for a few years in the 80s and tried to understand them, but ultimately I decided that universal expansion just didn't seem to make sense, esp. if at the speed of light. Maybe Mathis got some of his ideas from Larson. I believe Larson was a very intelligent person, but everyone makes mistakes. But no matter how many mistakes someone makes, they can still get some things right. And finding the things that are right seem worth taking a little time for.

What I think Mathis very likely has right is that there is no force of attraction (no action at a distance), just repulsion, that photons have real dimensions of radius and mass and that charge is mass equivalent. His detailed descriptions of atomic structure and how photons stream through the structure and give it electrical, magnetic, density and stability properties seem to indicate that he's very close to correct about that. The way his microcosmic and macrocosmic findings reinforce each other also seems very suggestive to me.