parados wrote:I am curious how gravity doesn't make things revolve around a center point.
2 objects of the same size would revolve around an area between them.
Could you explain your theory of gravity to us Gunga?
Simple observation really... The basic density of space is about one microscopic dust mote every four miles if you don't believe in "dark matter(TM)" (I don't), or about one microscopic dust mote every fifth of a mile if you do.
Here's what I mean. If you were to adopt a scale at which our solar system was about a yard across, then our sun would be about the size of a dust mote whose diameter was about the width of a human hair, and the nearest other star, Alpha Centauri, would be just over four miles away.
Moreover, that's fairly typical of space in general; even in bright star clusters which glow together, those kinds of size/distance relationships hold. At least inside galaxies; in intergalactic space it would be worse.
If you postulate dark matter comprising 95% of the universe, then you shorten the distance between dust motes to about a fifth of a mile, i.e. two of those little marker signs on highways.
Gravity simply cannot hold dust motes together at those kinds of distances. Electromagnetic forces however could.