Brad Hudson wrote:OK, let's do the math. (Please check my math -- it isn't particularly hard, but the numbers are pretty big)
First, and most importantly, we can look up the height of the geoid at a given latitude and longitude. http://www.unavco.org/community_science/science-support/geoid/geoid.html When we do that for Mt. Everest, we find the height of the geoid there is about 29 meters below sea level. So, even if we adjust for the effects of gravity (convert to the geoid), that adds to the water needed over steelhead's calculation. End of story.
But let's do a hypothetical for yuks. Let's assume that the geoid is at its maximum positive value over Mt. Everest. I've been rounding to 100 meters, but it's actually 85. Now, to give your position the maximum benefit of the doubt, let's add the 85 meters to the entire sphere. In other words, we'll assume that the maximum bulge exists everywhere.
How much water are we saving in volume? We're saving the difference between a sphere with radius 6371 km and 6371.1 km. That's the volume of water we're displacing with the extra 85 meters of radius. Now, do the math:
Radius of earth: 6371 km
Volume of earth: 1083250272904 cubic km
Radius of earth plus 85 meters: 6371.83 km
Volume of earth plus 85 meters: 1083250272904 cu km
Water saved by increasing radius 85 meters: 433,612,647 cu km
Additional water needed (per steelhead): 4,494,855,096 cu km
Water saved by 85 m increase: 433,612,647 cu km
Adjusted additional water needed: 4,061,242,449 cu km
Total water in, on, or above the earth: 1,386,000,000 cu km http://ga.water.usgs.gov/edu/earthhowmuch.html
Total water, less ocean water: 48,510,000 cu km (because sea water is already reflected in current sea level)
Global flood water deficit: 1,337,490,000 cu km
So, even assuming the geoid is positive everywhere, which will give us a larger amount of water reduction than if it is only positive in some places, we'd need about 2x the total water in, on, or above the earth in order to cover Mt. Everest. Of course, the geoid isn't plus 85 meters everywhere, and in fact is negative over Mt. Everest.
As for your other links, yes, if the earth looked 4,000 years ago like these scientists said it was like billions of years ago, there might be enough water. But it didn't.
Brad and Steel Head demonstrate a great deal of patience with subgenius, and are doing a lot of work on his behalf. I hope subgenius appreciates it.
Someone needs to point out (yet again) one additional problem to subgenius, and it is this:
In order to get the amount of additional water needed into the atmosphere (troposphere) as water vapor, so that it could condense out and rain down for 40 days and 40 nights, the temperature in the troposphere would have to be well above the boiling point of water.
With that much additional mass in the atmosphere, the increase in the water vapor partial pressure would not be insignificant. Water weighs one metric ton per cubic meter and there are 1000 x 1000 x 1000 (10^9) cubic meters in a cubic km, so rounding to two significant figures, we have an addition mass in the atmosphere of 1.3 x 10^9 times 10^9 = 1.3 x 10^18 metric tons.
The mass of Earth's atmosphere now is on the order of 5.3 x 10^18 kg = 5.3 x 10^15 metric tons.
Things are not looking good.
The amount of additional water Brad calculated would increase the weight of the atmosphere by a factor of well over 200. (Brad actually did an MKS calculation as is proper, which when carried forward as I did yields mass and there may a difference, but it would be very slight.)
The current standard atmospheric pressure on Earth at sea level is 760 mmHg, or just over 1 bar, which is about 14.7 psi.
Multiplying 14.7 psi by 200 for a very rough (and conservative) estimate, gives a bone (and body) crushing number. (The actual calculation to work out the atmospheric pressure is more complicated than this and will yield a somewhat lower number that is temperature and gravity dependent, but this simple estimate indicates that the pressure would increase - substantially.)
Subgenius' antediluvian Earth is beginning to look a bit like our sister planet Venus, where the atmosphere weighs about 92 times what the atmosphere does on Earth and atmospheric pressure (not surprisingly) is 92 bar, (more than 1300 psi) with an atmospheric temperature that is a balmy 467 degrees C (827 degrees F).
Maybe all of that rain cooled things down a bit (not likely).