Cutting the stones:
It is noted that the stones used in building the pyramid were cut perfectly to be smooth and ensure sticking the stone with each other without a presence of any anaerobic spaces, which effect on the strength of sticking. How could the pharaohs cut the stones with this high resolution? Were they used the ultrasound or even with laser? Or they might be used another medium, we don't discover it until now.
Source of the stones:
There were many theories in that field
First theory: the stones brought from Aswan.
Second theory: the stones brought from torah quarries on the eastern side of the river Nile.
Third theory: stones cut from Giza hill itself.
Fourth theory: The pyramids aren't building by pieces from natural rocks, but from stones made by the Egyptian builders, by mixing gravel with lime. These stones are stronger than the concrete, which we know now. The base of the pyramid was a natural rock sculptured to take the wanted shape then the rest of the pyramid build over it. This means that in this area there were a group of hills. Cheops chooses the biggest one and sculptured it for the base of his pyramid.
In fact, the first and second theories were far from ratification, where the scientific were agree on the difficulty of transferring the stones for long distances, especially the weight of each one more than one ton and if the transferring by the Nile river.
The third theory is closer to the reality, where the original matter of the stones similar to Giza hill. But this disagrees with the roof of the buried room, where it is made of granite, and the granite found only on Aswan and Torah.
While the fourth theory made us stop thinking on the ways of cutting or transferring the stones, but no one discovered it until now and still a theory.
How they moved stones and put it on its place:
There were a lot of theories I will show it briefly.
First: pharaohs build a way from the sand beside the pyramid, its height increases by increasing the height of the pyramid, and the rocks pull up over that way by using ropes and pieces of wood to slip over it.
Second: rolling the rocks over some slides beneath it trunks of trees, then raise the rocks by using a complex system of reels.
Third: by using kites!!!! One of scientists noted hieroglyphic writings and rows of men with strange stand and holding ropes leads by a certain type of mechanical system to a giant bird in the sky, and shows that it was a giant kite used to lift heavy blocks. After that, she begins to experiment after disturbed her curiosity to search at the realistic of this possibility. She tried with some of her friends to raise a piece of wood its length 24 m, and a block of cement weight 125 kg, by using a basic kite bought it from one of the shops, and she succeeded. Then the experiments rolled, she could raise an obelisk weighting 35 tons by using a giant kite and some reels. This theory or experiment depends on momentum of the wind in carrying and transferring the rocks.
Fourth: by using hydraulic jack and it’s a theory for Dr. Osama El-sadawy.
Fifth: pharaohs had developed sciences, we don't know anything about it, and they also had heavy equipments and other tools enabled them to do that. In a view to one of Herodotus novels he said that the priests were raising metals from the earth only by referring to it. The pharaohs might had reached to cancel the gravity and used that in lifting the stones. I can imagine a group of priests stands and looks to the rocks, it comes out from Giza hill, and each one settle in its place. If it so easy, why they took twenty years in construction.
Sixth: the pharaohs weren't the real builders to the pyramids, and it was build by aliens, or another civilization like Atlantis civilization. The author of these theories had a group of directions, such as: pharaonic inscriptions in different places of world. An inscription to Giza pyramids from the air found in one of ancient Indian temples, and relation between pharaonic civilization and Mexican civilization. That link might be sunken Atlantis continent…… to the end of that undocumented speech. Anis Mansur told on his books "who landed from the sky" and "who returned to the sky", on some details about these things. On my personal feeling is that the purpose of the authors of these theories is stealing the completion of the pyramid from the pharaohs.
By given the all theories, we find that the building of the pyramids complex and mysterious to the maximum extent. All the theories seem difficult ratification. The first theory, all the scientists agree on establishment of sandy curve was engineering miracle bigger than the miracle of building the pyramid and requires a huge effort to stay it and larger effort for removing it. And for the trunks of the trees that were rolled under the rocks, where they brought all that quantities of tree trunks and there isn't one jungle in Egypt.
For the second theory, it was shown that the pharaohs were known reels, but that needs great mussels' efforts.
The third theory seems convincing especially with the presence of hieroglyphic paints.
The fifth theory isn't too bad at all, but it the pharaohs had all that sciences why it was ceased to exist? And if they had developed equipments, why it wasn't found? There developed sciences might be disappeared because the priests were away from the people and sciences were limited to them only. In fact, no one could answer these questions up till now.