I agree with much of what you said, though I need to be a little clearer in some areas.
1. " And I still don't like 180 degree changes in rope direction (pulleys). This is fine for stones of ten tons or less but not so much for heavy loads."
a. I agree. A revolving wheel containing a rope notch, is not usually considered a pulley. Pulley's reduce the workload. [www.explainthatstuff.com]
I have no problem with the AI using pulleys, as it is such a simple device. Where does a rope over a pole, pulling up a sail, stop being a device to lift with and change the ropes direction, and turn into a pulley? Likely the addition of a hole and rod/axle. A pole would suffice. The size of the pole, would need to be strong enough, to resist the weight of only 1 sled, as it descends empty. The remaining weight is carried by all the workmen, and happens prior to the pole. The poles main purpose, is to redirect the rope 180 degrees, and not carry the total loads. And yes, having two lift stations on opposite sides, would eliminate the pole, and increase production.
2. In reference to G2, other than the base, the majority of the blocks were 2.5 tons. Each stone block within the pyramid weighs approximately 2267.96 kilograms (2.5 tons). Therefore the total weight of the great pyramid of Khufu is approximately: 2,300,000 x 2267.96 = 5,216,308,000 kilograms (5,750,000 tons). G1 dealt with larger blocks, of the 20 ton category, though there was not many of them. The majority being in the Kings Chamber.
3."Of course they dragged stones straight up the sides but these sides were probably about 70 degrees because they are all five step pyramids".
a. This statement confuses me. They may have completed the Tura cap stones with each level. This would be preferable, and would establish a constant 52 degree face angle, as you progress from one level to the next.
Edited 1 time(s). Last edit at 02-Mar-20 17:59 by Steve Clayton.