[SinJin]

Basically my question is - Does everything in the universe move?

[Graybeard]

Originally Posted by SinJin Basically my question is - Does everything in the universe move?

Space is expanding. And we are moving with it. Swing you arm and you will feel it, the current is against you.

[Guille]

I think it depends in what you mean by "everything".

If you mean matter, yes, it is moving (unless it is in the center of the universe).

If you mean energy, then it isn't CONSTANTLY movin,g but yes, it is always moving, or atleast there is always a big percentage ofenergy of the nunvierse which is moving through bodies and chaning of energy type.

If you mean force, then I think they are constantly moving.

Please specify to me what you mean by "everything".

[dleviwing]

Originally Posted by SinJin Basically my question is - Does everything in the universe move?

Since "everything" infers physical entities, the answer is – YES.
No process or interaction can change the quantity of this motion either.

[SinJin]

I mainly meant matter, although since space itself is expanding then I guess that is always moving too. And forces, aren't they transmitted through force particles? Although the graviton hasn't been detected yet or whatever, I would think all the force particles would constantly be moving. In fact, it seems every particle that makes up the universe would constantly be moving.

[force5]

I believe the fundamental law dealing with the conservation of angular momentum addresses this issue. Since everything consist of energy in one form or another, then all that exist would have to be in constant motion.

Just my thoughts................John

[Guille]

Originally Posted by SinJin I mainly meant matter, although since space itself is expanding then I guess that is always moving too. And forces, aren't they transmitted through force particles? Although the graviton hasn't been detected yet or whatever, I would think all the force particles would constantly be moving. In fact, it seems every particle that makes up the universe would constantly be moving.

Force particles would indeed constantly be moving (you will never see a photon static).

Energy particles, if they exist, would also constantly be moving 8energy itself is constantly moving).

Matter particles are constantly moving unless they are in the center of the univrse (it is belief that there is no centre).

Dimension's particles is the hardest to decide. WHY? Because it depends in what properties you give to these particles. If you mean that these particles move because the universe is expanding, then there are three possibilities:

1. The universe is expanding, this CREATES NEW particles, new space, and in this case, particles wouldn't move, they would just be more and more.

2. The universe is expanding, this EXPANDS the particles, the particles has grown in size. In this case, particles are moving in the sense of growing, but not of motion.

3. The universe is expanding, this Moves the particles, the space moves outwards, this means that the SPACE between the particles grow, not the particles themselves.

What number do you agree with?

[Graybeard]

If you mean matter, yes, it is moving (unless it is in the center of the universe).

Can the Universe have a centre ... A centre would imply that there are other places that are not central .. eventually you would arrive at an edge.

Space is accelerating, and as it is accelerating away from every observer .. I don't think there can be a central point.

If there was, however, i don't think Einsteins theory of relativity would ever have become fact. Everything would be measured from the centre, it would be the one 'relative' point ... But Einstein said "Every observers view is as legitimate as any other."

Greg

I agree with number 3 ... I don't think there would be a method of detecting number 2 unless the energy of the particles were changing ... Number 1.... hmmm... I don't really get it ... if the whole universe was expanding, why would there be more energy available to create new particles??

[Guille]

Originally Posted by Graybeard Can the Universe have a centre ... A centre would imply that there are other places that are not central .. eventually you would arrive at an edge. Space is accelerating, and as it is accelerating away from every observer .. I don't think there can be a central point. If there was, however, i don't think Einsteins theory of relativity would ever have become fact. Everything would be measured from the centre, it would be the one 'relative' point ... But Einstein said "Every observers view is as legitimate as any other." Greg

I know. I don't mean that I believe there is a centre in the unvierse. I say that:

IFF, AND ONLY IFF you believe that there is a centre in the unvierse, then there can be matter in the centre o fthe universe, and this one would NOT be moving ONLY if both the whole universe isn't rotating or moving in something bigger.

Originally Posted by Graybeard I agree with number 3 ... I don't think there would be a method of detecting number 2 unless the energy of the particles were changing ... Number 1.... hmmm... I don't really get it ... if the whole universe was expanding, why would there be more energy available to create new particles??

I don't think that what you are talkin gabout is what I'm talking about. I go and give it a thought, and post again when I arrive to something.

[AntonioLao]

Originally Posted by SinJin
Basically my question is - Does everything in the universe move?

Using a few concepts from physics, we can answer this question more physically than philosophically.
A direct answer is: find the kinetic origin of the potential energy.
A little more roundabout way is to answer this question by another question: Is the spin of the universe detectable? Detecting this universal spin is the same as sitting oneself in the absolute frame of the unmovable aether. Only at this aether location can one begins to measure the spin of the universe. Anywhere else is just an inertial frame, which can be moving or not moving relative to another neighboring inertial frame.