Relative

@strange-''Eventually, yes. (It would oscillate back and forth for a while first but eventually stop at the centre, where the gravity is zero)'' So if the central point gravity was zero, there could be no centripetal direction of force been gravity in this instant, so according to that, the Earth can not be a sphere, and would not hold together, UNLESS, there was external acting force, isotropic to get a sphere? and that would not make sense either. How can zero, have direction of force?

@strange- ''They are attracted because they have opposite charge. There is no easy answer to this question. It comes down to quantum mechanics: there is a minium energy that an electron in an atom can have. This corresponds to it being some distance away from the nucleus.'' Interesting and how would this compare to the planets energy, corresponding to their distances from a nucleus, been the Sun?

To have momentum we have to have force? a quark attracting a quark creates movement, when they join, there is force of impact, making rotation in a near vacuum? You mean there is an atom event horizon as such before they bond?

I am unsure, I can not see how that works, example - I pick up a house brick in each hand, they do not seem attracted to each other, I can easily lift them off the ground, but i feel they are heavy and are the same heavy at all height's , attracted by gravity but to that central point. I chuck them off a mountain, and they free fall, they are not attracted to the mountain? If I could drill a hole all the way through the planet, and dropped in a brick, it would stop in the middle, a central position?

A single quark attracting quarks and by contact made, momentum gained?

Thank you but I am not understanding this issue. Gravity on the Sun, and the Earth, by shape is to a central point, the Symmetry of shape, defining gravity to be isotropic to that central point, a central point that creates gravity, the beginning, the first ever particle/particles, something had to have started it, so what was it that contains isotropic centripetal direction to a central point? A single Proton?

Particles in the solar winds, are these not considered high energy? Is the Northern lights, a result of solar particles colliding with our atmosphere particles? You say Protons also repel, you mean they can repel each other as well or repel something else? Electrons are attracted to Protons? If yes to above, what stops them touching , becoming joined? Ty but is the radiation not the result from the plasma? the affect. yes held by its own gravity , self contained, so what would be the central particle of the sphere?

The iron sphere would superheat and become ???????, already contained by the magnetic suspension? sorry losing track spherical behaviour in a near vacuum, is isotropic of particles or plasma? The Sun, Earth, all spheres, misshaped by spin, but otherwise isotropic? To central points. A Proton is isotropic in attraction to an Electron? A Proton emits an electromagnetic field? Quarks are attracted to each other? Protons are attracted to each other? Muons are the result of destruction of particles by collision against a magnetic field??

Yes a bar magnet is self contained, rephrased - self maintained, that contains itself, isolates itself from space. A singularity that is self efficient, generating a field for containment of itself? So what particle or entity would be the isotropic particle/entity? that starts it all. iron spheres? If we could suspend a dense iron sphere by magnetic suspension, and then isotropically bombard the iron sphere with electrons, we create a magnet?

rephrase - what happens to anything that has no potential energy? Thank you and the Sun is mainly Plasma? Well wiki says it is. So what magnetic bottling is in place, its own magnetic field, self contained? Or the volume of space compared to volume of matter? EMR is plasma output? and why is the Sun not compared to Molten lava? Black spots been fused particles making matter?

What about a plasma vortex? ''Vortices form in stirred fluids, including liquids, gases, and plasmas.'' wiki quote

The Sun experiences turbal Thank you, I am going bed now but one last question, does the Sun experience/create, an energy Vortex, rotation creating turbulent flow of particles/energy?

Physical motion and centripetal and centrifugal forces having affect on particles, energy output ,such has heat, IMO?

A big doughnut? Light is isotropic, however, I consider solar flares, and other properties will be not isotropic. More of a doughnut ? A doughnut inside of an isotropic sphere of light?

The Sun emits isotropic energy, that has a positive value, so what happens to anything with a negative value? The centripetal force of the Sun, makes a North and South pole restriction of output of energy? and becomes an inlet of space?

Just energy, I do not understand that sorry, I thought all energy was a positive, or is energy like light and a product?

Thanks , but your No answers make me even more confused!. I will start with the Sun, how in any description is the Sun not a positive, when it emits constant positive energy?.

In classical Physics, it was thought that gravity was electromagnetism? Newtons laws of opposites attract, positive and negative attracting one another, based on this line of thought, the Sun would be a positive? Is the Earth's core a positive? Is the crust , mantle, and dust etc, more negative than positive? Does the positive of the Sun, repel the Earth's core positive, but also attracts the Earth's negative,mantle, crust etc, which stays fixed to the Earth's core by distance of attraction, and centripetal force in this circumstance of classical thought, which then creates an orbital elliptical orbit of the Sun?

Well I am trying, my main fault is I have a misunderstanding of meaning of words. So my sentencing often then do not make sense. Ty for your patience and help!. question all planets are pulled inwards towards the Sun? the outer physical bodies, are expanding? The asteroid belt stays in orbit?

I understand, thx, but i think I see a way you may be able to measure the universe maybe!. A bit more precise maybe. By using energy and volume.

You mean like Humidity?

EP is energy pressure, I was asking if there was an energy pressure has such. Imagine space to be empty, complete blackness, a nothing, I add a sphere that releases energy isotropic. is there a comparison to how big the sphere and the output of the sphere would have to be to fill the expanse with energy compared to the nothing? I use a 40w light bulb in a space the size of a football pitch, the energy is absorbed by the volume of area?

Would the words pressurised system be more suitable for space?

Ok thx, EP=F/A is there an energy pressure has such?

Force and energy