Gravitational pull is related to rotational speed?

[waterchan]

I found the following posted in another forum:

The planets are in an orbit do to "dark matter" that forces the planets to follow a set wave. Much like a ball floating in the ocean, when it goes around this "dark matter" the planet is similar to rolling around the oribt. (difficult to explain in words) The force that causes the planet to rotate around also creates a gravitational pull. The only reason planets with a larger density have more of a gravitational pull, is because it takes more force to propell the planet. With more force, there is more pressure towards the center of the planet.
Thus, gravity is not just the density of the planet, its the rotation of the orbit that creates the gravitational pull, unlike how some did believe.

He did not cite the source.

He suggests that this is related to Relativity. I'm no relativity expert but I doubt the authenticity of his claims, especially the part that the rotation of a planet affects its gravitational pull. What do you think?

 

[russ_watters]

It's nonsensical.

 

[moose]

What kind of forum is this? O_O

As usually, russ is correct, it's complete BS.

 

[John Phoenix]

You might want to look into Coriolis effect in relation to Earth's rotation. What you are saying is pure non-sense.