Originally Posted By: ImagingGeek
And both the ability to takeoff, and soar, are highly determined by wing loading.

I told you it was useless to argue with ImagingGeek.

Look,... if flight only depended on wing loading, then by your perverse reckoning, there would be 10 ton (22,400 lb) birds with 22,4000 square feet wing spans,... since such a bird would only have a 10 lb/ft^2 wing loading.

Originally Posted By: ImagingGeek
And I see you as..., completely unwilling to try and address the arguments

Your errors are so many and your argumentation so perverse, that it is difficult to bother.

So, then lets start at the beginning;

Originally Posted By: ImagingGeek
Remind me again, how does the earth and its continents survive an impact several orders of magnitude larger than the one that formed the moon?

Yeah, you just pulled this one out of,... thin air.

It's obvious that you have nothing behind this weird claim of yours.

Typical velocity assumed in Theia collision = 10 km/s
Maximum velocity assumed in Heaven-PreEarth collision = 2.5 km/s

If Theia and Heaven had the same mass, then;

Kinetic Energy of the Theia collision
= 16 (i.e., 4^2) times Kinetic Energy of the Heaven-PreEarth collision.

Adjusting for the differing masses;

Kinetic Energy of the Theia collision
= 16 x 6.42 x 10^23/2.48 x 10^24
= 4.14 times Kinetic Energy of the Heaven-PreEarth collision.

Where; Mass of Heaven = 2.48 x 10^24 kg.
Mass of Theia = Mass of Mars = 6.42 x 10^23 kg

So your statement "an impact several orders of magnitude larger than the one that formed the moon" is simply BS.

But, as per usual, I don't expect blatant falsehoods to slow you down.

So, the MAXIMUM energy released from the PreEarth collision is about one quarter that of the Theia collision.

This maximum energy can be reduced further.

And this is more than enough for one day.

Last edited by preearth; 08/22/10 01:46 AM.
Earth formed from a collision
www.preearth.net

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