In The Giza Power Plant, the author points out that the sarcophagus is cut from a solid piece of rock, its four corners are very precisely drilled, and its bottom is perfectly flat when measured with an engineer's rod. His theory is that the sarcophagus is so precisely hollowed out that it could only have been done by machine.
"His theory is that the sarcophagus is so precisely hollowed out that it could only have been done by machine."
i saw a bit on the Discovery Channel a while back about wind-power being a likely source of constructing the pyramids and erecting the obelisks. they used kites and pullies hooked to temporary structures that fit the chucks of stone together. they backed this up by doing so, and then by witnessing the hyroglyphics with wingspans and noting that they were the perfect deminsions for a level-flying wing.
the idea of the ancient egyptians making machines capable of precision cutting without combustable engines is IMO plausable.