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I disagree, but I'm not sure why.Well, not exactly. If the universe only contained two electrons, then smack bang in the middle there would be zero gravity, both in terms of the warping of spacetime and in terms of the force felt by a particle there.
Yep. Though the two electrons are attracted to the middle, the central electron would feel nothing. Of course, this only works if the central electron is in the very centre of the system.I disagree, but I'm not sure why.
Are you saying that a particle in the center of the universe would have zero gravity because the force of gravity from the electrons are canceling each other?
We're only talking about gravity, not electromagnetism. And I doubt you could get charge coupling of any significance over large distances.Opposite spinning paired electrons, or same spinning electrons. Cause a spin-paired set of electrons, let's say H atoms, will attract eachother over infinite distance. Van der Waals forces.
We're only talking about gravity, not electromagnetism. And I doubt you could get charge coupling of any significance over large distances.
Then zero gravity is only theoretical, is it not?Yep. Though the two electrons are attracted to the middle, the central electron would feel nothing. Of course, this only works if the central electron is in the very centre of the system.
Well true over a great distance they are unaware of each other. But as long as temp. is above absolute zero random movement exist. They wander till they become close enough that although weak, Van der Waals forces take hold. Once initiated is becomes strong enough till the 2 orbitals combine.
Hawking suggests (as I understand it) in A Brief History of Time that the stronger the force the more limited the effect. Gravity is the weakest, but is felt across the universe (e.g., the milky-way and Andromeda are due to collide in 5 billion years due to gravity, IIRC). The strong nuclear force is the most intense but is comparatively limited.
Is this your understanding?
Then zero gravity is only theoretical, is it not?
Since it would only work in a universe that has two electrons, and this universe is not structured that way, zero gravity doesn't exist --- only on paper.
Then WC's two-electron paradigm is wrong?Given the weakness of gravity and how quickly that effect falls away over distance, microgravity can be considered to be effectively zero gravity.
Then WC's two-electron paradigm is wrong?
And I have a feeling you aren't, but are you suggesting that the force of gravity is limited with regard to distance?
Well ... since zero has its own value ... I'll go with what scientists call it.Again, not limited, but over very large distances it falls to such low levels it may as well be zero, and the interaction times become impracticably large.
Well ... since zero has its own value ... I'll go with what scientists call it.
Better yet --- let's look at it this way:
At the quantum level, there is no such thing as zero gravity.
How's that?
I don't think one necessarily follows the other; I don't see why we couldn't have a very strong force that has such wide effects as gravity. Obviously, we don't, but I don't think there must necessarily be a trade-off.Hawking suggests (as I understand it) in A Brief History of Time that the stronger the force the more limited the effect. Gravity is the weakest, but is felt across the universe (e.g., the milky-way and Andromeda are due to collide in 5 billion years due to gravity, IIRC). The strong nuclear force is the most intense but is comparatively limited.
Is this your understanding?
Again, we're talking about lone electrons. There are no orbitals to combine.Well true over a great distance they are unaware of each other. But as long as temp. is above absolute zero random movement exist. They wander till they become close enough that although weak, Van der Waals forces take hold. Once initiated is becomes strong enough till the 2 orbitals combine.
On the contrary, there are points dotted about the universe that just so happen to have a net zero gravitational field. For whatever reason, at that point, the gravitational fields just so happen to add up to zero. They're obviously rare, and they will move about as objects in space move about. But they exist, nonetheless.Then zero gravity is only theoretical, is it not?
Since it would only work in a universe that has two electrons, and this universe is not structured that way, zero gravity doesn't exist --- only on paper.
The gravitational force felt by our two electrons will be absolutely tiny, given the distances involved and the minuscule mass each electron has. In the real world, other forces will completely drown out the electron's gravitational field, but in our hypothetical, there's nothing to drown it out.Then WC's two-electron paradigm is wrong?
And I have a feeling you aren't, but are you suggesting that the force of gravity is limited with regard to distance?
On the contrary, there are points dotted about the universe that just so happen to have a net zero gravitational field. For whatever reason, at that point, the gravitational fields just so happen to add up to zero. They're obviously rare, and they will move about as objects in space move about. But they exist, nonetheless.
To a good degree of accuracy, Lagrange points are examples of these. These are the places where the Earth's and Sun's gravity cancel each other out:
I'm sure that's why it's prefaced by, "micro-".If you're talking about femtometers of motion of something a few hundred metres long on a short timescale then there is in practice little different between calling it stationary and giving it an acceleration so small you probably won't even get to observe it happening.
Hence why I said "to a good degree of accuracy"While Lagrange points kick backside, I suspect this won't be counted as a zero gravity point by certain individuals, because of all the other mass in the universe. Even though they're too far away to make a difference and one could effectively consider their contribution to be isotropic and thus zero anyway.....
"Zero gravity" is a term that is one vote away from being plutoed ---The gravitational force felt by our two electrons will be absolutely tiny, given the distances involved and the minuscule mass each electron has. In the real world, other forces will completely drown out the electron's gravitational field, but in our hypothetical, there's nothing to drown it out.
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