Orac; Grow up. If you are wrong you are wrong. Everyone is wrong sometimes.

Originally Posted By: Orac
Again the problem is to remain so tidally locked the two masses would have to be identical and I do mean identical....

Is the moon tidally locked to Earth?
Does the mass of the moon equal the mass of the Earth?
Will the moon continue to be tidally locked to Earth?


Of course, two tidally locked object do NOT have to have identical masses.

Originally Posted By: Orac
You are going to have to get me over the orbital stability issue before I even bother wasting time on this. No stability means not really possible.....

What orbital stability issue? You talk (other thread) of the instability of a double planet system (PreEarth-Heaven) together with a third object (the Moon). For some reason you just assume that together they are unstable, no proof required.

But you are obviously wrong. Think on a bigger scale;

Is the double system (Earth-Sun) unstable simply because you add, say, Venus?

Contrary to your claims, the addition of a third object does not necessarily imply orbital instability.

Originally Posted By: Orac
I simply can't see the differences between the theories (the PreEarth-Heaven collision theory and the giant impact theory).....

How is this theory different from the giant impact theory?

Let's start with:

1) the impact causes continental drift
2) the impact causes the Pacific basin
3) the impact creates the Pacific ring of fire
4) the impact raises the ring of mountains around the Pacific
5) the impact creates the Himalayas
6) the impact takes continental crust that completely covers the planet PreEarth and distributes it in patchwork fashion over the surface of the Earth


None of these things are claimed by the giant impact theory.

The giant impact theory claims to create the moon, however,

7) Mansfield's impact does not claim to create the Moon.

These are not minor differences in the theories.

Originally Posted By: kallog
So how long was a day?

Originally, I have no idea.

I have calculated it at the point of impact, but it was so long ago now that I have forgotten.

Originally Posted By: kallog
Can you explain again how the moon fits into it all? Was it already there or not?

It was already there.


Earth formed from a collision
www.preearth.net

Plate-tectonics is wrong
www.preearth.net/plate.html