freedomtagard (September 29, 2008 at 12:36 am)

exactly the pressure of the water on the sea floor would have (and still is) made the the rock dencer. air it lights than water that is why we cant breath water. a fish our size is a lot heavier than us because in order to sevive the have to be much dencer

edmontonian2 (September 24, 2008 at 2:00 pm)

You failed to take into account the fact that continental crust is (on average) 40 km thick. Therefore, not only did you have to use ocean water (which you did), you also have to use the density of oceanic crust and oceanic mantle down to the same depth of the average continental crust depth.

edmontonian2 (September 23, 2008 at 3:14 am)

correction: it should have read as "Afro-Eurasia". Sorry.

edmontonian2 (September 23, 2008 at 3:12 am)

Are you seriously suggesting that the ocean Panthalassa would have been drained if Pangaea existed? If this were true, wouldn't there be a ring island in the southern Pacific, or at least a very large area of it that is many kilometres shallower than it should be? Also, having one side of the Earth with much more landmass than the other side isn't far fetched at all. Modern day Earth is like that. We even have a supercontinent: Afro-Eruasia.

DST911 (September 22, 2008 at 9:32 pm)

Are you seriously suggesting that 250 million years ago there was a great 3mile tall wall of sea water lining the coast of your pacific continent because in order for the middle of the pacific to be exposed land virtually all of the worlds oceans should be land too gravity is always pulling everything towards the core

DST911 (September 22, 2008 at 9:25 pm)

Oh yeah your right

baldurus1 (September 22, 2008 at 12:12 am)

This would only be true if the earth was fixed in space.

nealadamsdotcom (September 21, 2008 at 11:56 pm)

DST911 If I drill a tunnel through a mountain and stand in the center of it, I don't feel the weight of the pressure of the mountain. That's because there's a difference between Gravity and pressure. One difference is that pressure can be relieved, by structure

DST911 (September 21, 2008 at 9:51 pm)

dont moan at my spelling i know its awfull but as long as you can read then thats fine.THE Center of gravity is the CORE of the earth the weight of all the crust is only the fraction of the weight of the core have you thought about that

nealadamsdotcom (September 21, 2008 at 9:42 pm)

DST911 It's nonsenSe. It's continent (Not conternet.) It's Gravity. No. my widdle cuteumms. "Gases" RISE UP, like Hydrogen and Oxygen. (Sound Familiar?