Does it make a difference if it is hollow? Does spacetime permeate a solid body?........Please Register or Log in to view the hidden image!
I was referring to the hollow shell in the shell theorem. space, spacetime must be continuous into vacuums, neutron stars.
The laws of physics would have trouble applying to atoms inside a solid, if space and time did not apply to them. Please Register or Log in to view the hidden image!
Yes, I thought this through a little more after. Is it not true that there is actually more space in atoms than there is matter? But the space inside an atom would not be empty space. There would be fields and forces inside an atom as much as there is outside of it.
On that is based my post# 457, for all we know, perhaps inside a proton might be space between the quirky quarks. That is why in my innocent basic question I reduced that possibility to a very small , almost point mass premise. Even then, there would be zero gravity at the center. Gravity is the adding up of all the outside gravity [vectors?]. In the process, some are cancelled, subtracted. but all acting gravity is outside gravity. imho. There is only one spacetime inside a hollow shell, pulled in opposite ways by the surrounding mass. There should be only one resulting non-warp. zero gravity.
So ... the Moon orbits the Earth due to ... magic? The Earth orbits the sun ... using a trail of breadcrumbs?
Dave, you have to have humour. A. Einstein, during the Copenhagen discussions quipped once: " "so, you mean to say the Moon is only there when we look at it? " Gravity potential always there, acting only in case you need it?
Write4U No . Because space , its volume , is based on the amount of matter in the Universe . Absolutely , between the electron and the proton . Creates stability , hence the form of hydrogen .
Yes Because matter needs a certain amnout of space in which to manifest , exist But not deep enough as to why .
Do you believe space is an emergent result of "necessity and sufficiency", similar to the necessity and sufficiency for time?
No Space , energy and then matter . Energy and Space manifest at the same moment , neither exists without the other
Matter , is the consequence of the energy-space , consequence . The more energy the more space needed to exist .
Well, since what keeps the Moon in orbit around us is labelled gravity then that 'something else is ... still gravity. If you have some ideas about how gravity may work , that would be the place to start.
Write4U: Think about rowing a boat along a river. The boat moves through the water, while at the same time the water flows downstream. The "medium" that is relevant is the water, and there is one speed of the boat for which the water is stationary (relative to the boat). Moreover, experiments can be done to detect the "true" speed of the boat relative to the water. With space, on the other hand, the experiments have been done to try to find, for example, the "true" speed of the Earth relative to the "aether" - a mysterious substance thought to be the "medium" through which light propagates through space. Famously, all such experiments give results consistent with a null result. That is, there is no detectable "preferred" speed of the "aether". The conclusion we come to is that there is no aether. Space is not a fluid. It isn't like the water in a river. What fluid-like behaviours do you think space exhibits? How so? Explain. I don't know what you mean. Explain. What's fluid-like about it? What are your criteria for fluid-like behaviour?
Explain to me how fluidity explains wavelike behaviour, briefly. And what does metaphysics have to do with anything?
Why does it need an energy source? And how can it be it's own energy source? Explain. What superfluid? Quantum what? Explain. What's an energy-space? How is matter a consequence of an energy-space? Explain. Needed for what to exist? Why does more energy mean more space is needed for whatever it is you're talking about?
I think W4U is putting the cart before the horse. It's not that fields behave like fluids; it that's fluids have some properties of fields. eg. a lake surface has field-like properties - its surface is continuous and there is a value (eg. wave height) for every point on the lake.