[hatakikakashi]

Excellent posts Brady and Guido

Originally Posted by GuidoHunter

Don't worry about it, Brady.

You're right that internal forces are nonexistant...

the only known force to make any difference is the gravitational force. Just as the gravitational force is negligible at the quantum level, the strong nuclear, weak nuclear, and electromagnetic forces are far too weak to have any effect on celestial bodies. And when talking about the expansion of the entire universe (or, at least, its edges), the gravitational force can only apply when you describe entire galaxies as individual objects.

Yes this is what I wanted. I have a couple ideas.

Remember learning about electromagnetic forces and polarities that determine whether or not two objects are attracted to eachother or repelled? Also the strong and weak nuclear forces, one attracts and the other repels, not based on polarity but rather on the distance between subatomic particals. Lastly there is gravity, everyone knows that gravity attracts matter to other matter, and that the force of gravity is weakend by distance. But unlike electro magnetizm and the strong and weak nuclear forces there is no force to counteract gravity(that I know of),if there is however, perhaps the gallaxies are far enough away from the rest of the universe that gravity is no longer affecting them as much as this other force. Causing them to accelerate away from the rest of the matter in the universe. It makes sense to me when I think that the strong and weak nuclear forces are defined by the space between the objects they are affecting. When they are close enough together they are attracted to each other, but if too far apart they are repeled. Maybe gravity is the same way.

That's my first idea.

Also I'm sorry I called you all little kids, that was wrong.