As I understand, we are still testing Einstein’s theory of gravitation to figure out how it actually WORKS.
“Einstein’s theory of gravitation to figure out how it actually WORKS.”
No, gravity itself if simply described by Newton’s equations.
Einstein complicates things by creating much more complex environments for those equations to happen in (like blackholes).
It’s like asking a watchmaker if they understand how a watch works. And then asking him what would happen if you put a watch in a microwave. He might not be able to answer that one, but that is because the watchmaker doesn’t understand microwaves not that he doesn’t understand watches.
Still a lot of mystery about gravity.
A guy I knew made top-of-the-line gravity meters. He was hired by the Air Force to try to determine if there was such a thing as “negative” gravity which was pushing mass farther away.
Their long-range missiles weren’t tracking properly, in spite of taking into account the varying mass of the earth going across various terrain.
He told me his work was inconclusive. He figured they just didn’t have accurate info on the various land masses. But he also kept an open mind about “anti-gravity” forces.