IIRC it's been well-known for a while how they moved the vast majority of materials by land (similar to how the Stonehenge megaliths were moved, highly dissimilar to how the Rapa Nui moai were).
No,the best theory is they cut the stones in a slightly underwater quarry. The limestone if submerged hasn't gained co2. They used a complex system similar to a canal. They used ballast like logs or airbags to float the cut rocks while keeping them uderwater. Even the top working row was a water filled mini canal. They would drop the stones into place. Once the water was removed the limestone would absorb co2 and swell, tightening the blocks together. This would have been some serious engineering.
> For this, they said, the ten years were spent, and for the
underground chambers on the hill upon which the pyramids stand, which he caused to be made as sepulchral chambers for himself in an island,
having conducted thither a channel from the Nile.
Sounds like the same story for the Osireion, according to Strabo.
Ancient megalithic Geopolymer masonry made with electrodes and [Lingam,] electricity is apparently lost to modern day as well.
FWIU, in the Great Pyramid, there were/are copper rods in the shafts out from the King's Chamber, and the conductive gold at the top of the pyramid was added after construction over top of a perhaps more ancient well shaft (that is not as geomagnetically-aligned) that may have been a hydraulic/hydrologic water tunnel given the water erosion in the subterranean chamber.
Fairly,
Demonstrate moving and then placing an 80 ton granite stone with ancient materials and tools: copper, gold, limestone, granite, probably fulgurite (sand glass due to lightning) and/or volcanic glass, obsidian, grain dust, papyrus rope, papyrus boats, barges, [variable buoyancy] crane machines, masonry forms and jigs, chemistry in jars, large sceptre tuning forks, sand, porous cliffs by the sea
What are the dates on the outer structure, and on the oldest largest object within the structure?
Gears: Antikythera (200 BC), Watchmaking c. 1300 AD
But the boat, and things that float due to ballast or no; how old is that?
Aliens of similar height, from the tunnel and stair heights and sarcophagi.
Such as the [presumed] Sarcophagus of Senusret II - which has a pyramid built around it with perhaps newer and less precise masonry methods - which one might've hoped had contained instructions on how to produce spec granite at those tolerances back then; [1]
There is little evidence of advanced mechanical masonry tools at the time, except for the remaining megalithic stonework that later cultures built upon.
FWIU there are only a few examples of circular polishing, and the core drilling method leaves different signatures than known methods in modern day.
