Ziggurat
Penultimate Amazing
- Joined
- Jun 19, 2003
- Messages
- 60,803
Which all works out very well outside of the bodies that are generating the mass. But proves nothing internally. And will prove nothing until verified in experiments.
And why wouldn't it work inside? What's different about inside compared to outside? There shouldn't BE any difference. Unless, as I said, you either introduce nonlinearities or divergences from 1/r2. That is the only possible way to get any difference. But why on earth would those differences show up only inside a body? "Inside" and "outside" are ultimately artificial distinctions: why should the laws of physics make the same distinctions we artificially do? It makes no sense. I'm sorry, but that is an extraordinary claim, and the burden is therefore on anyone who wants to advance that idea, not on the people who don't accept it.
Why absurd?
Because "inside" and "outside" are artificial distinctions.
Q: What stops you from falling due to gravity into the the Earth? A: The EM forces that retain the Earths solid structure and rigidity. Proposing that EM forces could also in some way effect the way that gravity functions internally in areas of high mass density is a possibility that should not be overlooked.
Oh, but that's not actually proposing that gravity works any differently, rather it's proposing that electromagnetism works differently. And it is equally absurd, because it would require violations of Maxwell's equations.
All areas that have been studied in detail are low density (atmosphere, upper oceans, space, etc)
Guess what: in terms of gravity, the entire earth is low density. And the density is irrelevant to the shell theorem unless you introduce nonlinearities. And we already know the main nonlinearities in gravity (GR), which we actually CAN detect in low-density space. Any additional nonlinearities should be completely negligible within our solar system (or else we should have already detected them in tests of GR), and the nonlinearities from GR don't help you violate the shell theorem.
We know that huge currents flow through the Earth.
That's nice. They don't change earth's gravitational field. And anyways, you can't stabilize a conducting shell against gravitational collapse with electromagnetic interactions either: any electromagnetic equilibrium you try to establish will be likewise unstable.
No, I dont actually have an alternative model to propose, but I can do some more hand waving if you want.
Why would I want that?