In order to ensure the enduring pyramid, designers don't need a piece of wood or an iron nail, because wood is easy to rot and iron is easy to rust, which are real hidden dangers. There is no adhesive between the stones, but they are seamlessly spliced together, and even the thinnest blade can't be inserted. How to build stones layer by layer is a mysterious subject that makes people guess.
Some people say that it is built by using wooden boat-like tools and using the principle of leverage to gradually raise the boulder and build it layer by layer. However, where do the brackets and ropes that can lift several tons, dozens of tons or even hundreds of tons come from?
Some people say that sand is filled along the tower foundation by sand filling method. The sand rises with the tower foundation, playing the role of feet and hands. After the tower was built, the sand was removed. The Egyptian Pyramid is a square pyramid with a sharp bottom, with a height of146m, a square base and a side length of 230m. If it is surrounded by sand to form a slope that can transport stones, the angle of the slope is 30 or 25 degrees. If their height is 146 meters, how much sand is needed! But where does so much sand come from? And fill it first and then destroy it, and the traffic will double.
Some people say that salt is used. The method is as above. After use, it can be dissolved in water without moving. However, so much salt is harder to get than sand. In addition, a rainstorm will dissolve the whole salt slope.
Some people think that Nile mud bricks are used to build spiral chutes, which stop rising layer by layer. The result is similar to that of sand slope, but mud brick is more difficult to obtain than sand.
There is an entrance at the north of the tower 13 meters from the ground, and there are labyrinth passages and burial chambers in the tower. The walls are smooth and decorated with relief. The passage has neat steps, which extend to the tomb in one continuous line until it is deep and deep underground. There is another vent in the tomb that leads to the outside of the tower. It is said that the "soul" of the deceased can freely enter and exit from these small holes. Strangely, one of these two water holes is aimed at Draco and the other at Orion. Three such tombs have been found, and archaeologists believe that at least four have not been found. Can such exquisite design and conception be completed by the ancients 4000 years ago?
The most surprising thing is that archaeologists analyzed the dust accumulated in 4600 years with modern instruments and found no clues. So, what lighting tools do they use to carve reliefs, clean graves, or carry corpses? We haven't found the answer yet.