The Pyramid of Khufu, the largest pyramid in Egypt. The tower is 146 meters high, and before the Eiffel Tower was built, it maintained the name of the world's tallest building for four thousand years. It is made up of 2.3 million stones weighing a total of several tens of tons, with a total weight of 6.84 million tons.
4600 years ago, when iron was not widespread, how did the Egyptians build it? And the Great Wall, which is also a wonder of the world, who is more technically difficult in the two of them?
Before that, let's talk about what the pyramid was built for.
There are many explanations for the use of the pyramids, some of which are said to be used to sacrifice to the heavens. Because there is an altar found at the top of the tower, some people think it is built to measure the data. In the Prophecy of Theohua, it is even believed that it is used to absorb cosmic energy to enhance human spirituality, but the most likely thing is that the pyramids are the tombs of ancient Egyptian emperors.
Because funerary utensils and sarcophagi have been found inside most of the pyramids. Moreover, pharaohs can be found in each pyramid, which is also confirmed by the Palermo Stone. However, because it is an open mausoleum, things have been lost for thousands of years.
As the only remaining fruit of the Seven Wonders of the World, the mystery of its construction still makes countless future generations rack their brains. In general, there are two major points that are difficult to explain in the construction of the pyramid: one is the way of stacking, and the other is the processing accuracy.
As mentioned above, a pyramid is made of about 2 million pieces, weighing an average of 2.5 tons, and the transportation of these stones is entirely human. Fortunately, the quarry was not far from the site, and workers could use special clay or logs to pave a slide and slowly pull the stone towards the site. The real difficulty was how to pile up from the bottom up, there was no crane at that time, relying on manpower to lift several tons of stones up to a hundred meters high, which sounded like a fantasy. At present, one of the more reasonable speculations is the spiral ladder method. That is, first build a spiral staircase, and with the ladder, you can pull the stone up one step down the ladder.
After solving the problem of strength, the following is precision. The construction accuracy of the pyramid has reached a staggering point, its each bottom edge error is only 1.6 cm, and the difference between the base angle and the right angle is only 1/27000, and the error between the direction and the due north is also controlled within 5 degrees.
Not only that, but the data of the pyramid also show amazing coincidences, such as the height of the tower multiplied by one billion is just the distance from the Earth to the Sun, and the bottom circumference is exactly half of the ten degrees of the equator. Whether this is a coincidence or a deliberate act is still inconclusive.
So, such a great project, compared with the Great Wall of our country, who is more difficult?
Since the pyramids are a full two thousand years before the Great Wall, the premise of comparison is not established, and only a simple comparison can be made from the technical difficulty and the amount of engineering. In terms of engineering volume, the Great Wall is even better. At present, the total length of the Great Wall is 21,196 kilometers, which can circle the earth in half a circle, and the volume is equivalent to four hundred pyramids. Only 96 pyramids have been found, and according to relevant statistics, the construction of the Great Wall has cost millions of people. The pyramid used up to 100,000, and the contrast is still obvious.
But in terms of technical content, it may be that the pyramid is more difficult. After all, as far as the technical conditions at that time were concerned, the technical content was still quite large to build up to a height of 100 tons of stones. Relatively speaking, the biggest problem of the Great Wall is only how to transport the stones to the mountain.
However, this comparison has no practical significance, they are all valuable cultural heritage left by predecessors to future generations, and their cultural value is much more important than that of material significance.