Diameter of earth at equator = 7926 miles
radius of earth at equator = 3963 miles
Volume of earth = 4/3*pi*R^3 = 260,711,886,825 cu mi
Assume average ocean depth of 2.7 miles (based on size and average depth of each ocean) and water coverage of 71%
Volume of ocean = 71%*4/3*pi*(3963^3 - 3960.3^3)
= 71%*4/3*pi* (62240377347-62113250509)
= 71%*4/3*pi* 127126838
= 71% * 532507661
= 378080439 cu miles
Ratio of Ocean to Earth volume
= 378,080,439 / 260,711,886,825 = .145%
Ratio of solid Earth to Earth volume = 99.855%
I would think the effect of such a small percentage of the earth's mass would have a neglible effect on earth's magnetic fields.
Anyone else have any thoughts?
This would suggest that it’s the crust that is magnetized, which may in turn magnetize the core? Interesting. I have no idea what to make of this.
It is at least refreshing that, even if they’re wrong, there are some scientists out there questioning even the most very basic of “conventional wisdom” tenets of science. That’s a healthy thing.
How far down is the molten core?
And what would it’s volume be compared to the ocean’s?