Sterling Cooley
@SterlingCooley • 27,495 subscribers
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This shows ~1,200 years of seawater erosion of the Khafre Pyramid, compressed into one minute. For the first ~500 years a high ocean stand holds about 300 ft above the base; its waves lap the soft Tura limestone casing and dissolve it (carbonic acid) at roughly 0.08 ft/year — about one inch of perpendicular recession annually, and ~14× faster than the slow dissolution on submerged surfaces below. As the sea recedes, it then pauses at successively lower stands, each held ~75–100 years, and each carves a distinct horizontal band where the casing is stripped to the bare core. Loosened blocks slough off at their own pace and fall down each face, piling into talus that mounds toward the center of all four sides. The smooth white cap above the highest waterline is never reached and survives intact.
Sterling Cooley640,674 views • 2 months ago
So at the fastest rate of erosion of white tura limestone casing blocks, this 60 second clip represents roughly 100 years of erosion. If we want to get the Pyramids to erode the vast majority of the the outside casing stones, we likely need to run the simulation for something like 5-7 minutes, or 500-700 human years How is it possible that the Pyramids could have sat there, submerged in carbonic acidic salt water for that long ? Could the Pyramids themselves be much older than we have thought ? Is our history being hidden from us ? With a silent witness to a much more hostile planet than we believe ? I think we deserve real answers to how the pyramids look the way they do, and they more often than not, appear to have been eroded by a high waterline, and not by desert bandits stealing stones one by one...
Sterling Cooley12,550 views • 11 days ago
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