Arbitran, on 08 April 2012 - 03:59 AM, said:
I will indeed study physics further.
I was in large part here relaying the information supplied to me by my uncle and his colleague--both college professors. I personally will believe a qualified physicist and Egyptologist on this.
In attempting to discern where your uncle derived his figure of 6.5, an error on my own part was discovered. My apologies.
Your uncle's figure would appear to be based upon the total volume of the feature, the highest possible density for limestone, and the assumption of a solid limestone construct throughout.
The volume of G1 is calculated to be 2,583,283 m
3 (Lehner 1997:17).
The massif underlying G1 is estimated to have a minimum volume of 600,000 m
3 (23% of total) (Raynaud, et. al., 2008:20).
Thus V
L = 1,983,283 m
3
Utilizing the minimum density for limestone and not accounting for the rubble fill and voids results in a limestone construct mass of 3.85 million tons.
Utilizing the average density for limestone and not accounting for the rubble fill and voids results in a limestone construct mass of 4.725 million tons.
Utilizing the maximum density for limestone and not accounting for the rubble fill and voids results in a limestone construct mass of 5.6 million tons.
Allowing for a conservative reduction in total mass of 5% due to voids and rubble fill, this reduces the above figures to 3.66, 4.49, and 5.32 respectively.
.