The mystery of the Great Pyramid

   There is a hole near the top of the large corridor, which is a short passage opening, from here you can reach a structure called the “dispersed gravity chamber” below. In 1837 and 1838, Howard, Captain Weiss, and J.S. Pening used explosives to blast the tunnels and found many such scattered gravity chambers. There is a ramp in the middle of the ground of the large corridor, and steps on both sides, each with 27 slots on the steps, corresponding to the vertical or horizontal slots on the wall of the large corridor. It is still unclear what these slots are used for. Some archaeologists speculate that at least three stone doors are installed in the large corridor to block the ascending passage, and the slots are used to place wooden beams to prevent the stone doors from falling.
   The king’s tomb is 10.47 meters long from east to west and 5.234 meters wide from north to south. The ceiling of the tomb is flat, 5.974 meters above the ground. There are narrow shafts on the north and south walls of the king’s tomb. The purpose of these shafts is still unclear. They seem to correspond to the arrangement of the stars in the south and north. However, one of the shafts travels along the inner broken line of the Great Pyramid. According to this, the builders of the Great Pyramid did not intend to let people look up at the stars through these shafts. Egyptologists had always believed that these shafts in the Great Pyramid were “ventilation shafts”, but now they are increasingly believing that these shafts have a religious purpose and are designed to allow the king’s soul to ascend to heaven. Some metaphysicists claim that the Great Pyramid has profound astrological significance. They infinitely exaggerated the astronomical wisdom of the ancient Egyptians, and even linked the Great Pyramid with the so-called “super civilization” Atlantis and aliens. Get up, and their purpose of doing this is nothing more than sensational.
   The surface of the king’s tomb is covered with granite slabs. The flat roof of the tomb is composed of 9 slabs, with a total weight of about 400 tons. There are a total of 5 scattered gravity chambers overlapped above the top of the tomb. Except for the top one is a spire, the rest are flat. These decentralized gravity chambers are now called “Davidson Room”, “Wellington Room”, “Mrs. Abbasnot Room” and “Campbell Room”. What is the purpose of building these decentralized gravity chambers? Captain Weiss used a reed to pass through the top crack of a dispersing gravity chamber, so he suspected that there was a tomb above. But current Egyptian scholars believe that the purpose of building these scattered gravity chambers may be to prevent the king’s tomb from collapsing due to the weight of the upper stone. Because these tombs are not intended to be seen by people, they are not finished, and there are even the marks of craftsmen on some stones. There is a mark on a stone in the “Campbell Room” that mentions the relationship between the Great Pyramid and Pharaoh Khufu, making it the only such material evidence found in the Great Pyramid.
   What is puzzling is that the only item in the king’s tomb is a rectangular granite sarcophagus, which is rough in production, and traces of polishing in many places are clearly visible, which is far from the exquisite sarcophagus found in other pyramids built during the same period. Petri speculated that Pharaoh Khufu originally had a high-quality sarcophagus, but it was lost in the Nile while being transported north from Aswan, so he had to rush to produce a replacement.
   The large-scale and complex structure of the Great Pyramid is indeed full of many unsolved puzzles. Scientists are currently planning to use a new type of robot to enter the Great Pyramid in order to solve more puzzles. Of course, metaphysicists will continue to make a fuss about the Great Pyramid.
  
  
   The Great Pyramid is an ancient power station?
   Did the ancient Egyptians use ultrasonic tools?
   In the second half of the 19th century, Sir Flinders Petrie, a British Egyptologist, measured the outer covering stone (surface decoration stone) of the Great Pyramid excavated by archaeology and pointed out that the stone processing technology of the ancient Egyptians has Very developed. Contemporary American precision engineering expert Christopher Dunn said that the tolerance (allowable error between the standard value and the actual value) of the modern stone processing industry is 0.6 mm, while the tolerance of the Great Pyramid stone is less than 0.3 mm. However, it is impossible to machine such precise straight lines or planes only by relying on copper or bronze tools. Dunn therefore speculated that the builders of the Great Pyramid must have machinery and power almost equivalent to the modern level.
   There are 21 nearly complete sarcophagi in the Great Pyramid. Each sarcophagus is made of a single piece of granite or basalt and weighs more than 100 tons. Dunn said that if the purpose of these sarcophagi is only to place the remains, there is no need to hollow out the entire stone to make a sarcophagus. Wouldn’t it be more convenient to assemble the sarcophagus with six slabs?
   The outer surface of these sarcophagi is processed almost completely flat, and the corners of the inner planes are arc-shaped. Dunn believes that unless a high-performance drill bit is used, it is impossible for the ancient Egyptians to achieve such accuracy. In addition, for processing high-hardness stones such as granite, quartzite, and diorite, the drill bits used by the ancient Egyptians (if any) should be able to feed about 0.25 mm per revolution, while the modern drill bit is 900 per minute. For steel drills, the feed speed for granite is 0.005 mm per revolution. In this way, the performance of the drill used by the ancient Egyptians is at least 500 times stronger than that of modern ones.
   So, what kind of high-performance drills did the ancient Egyptians use? Because the stone surface did not leave any traces of excessive heat, Dunn proposed the “ultrasonic tool” hypothesis. The tip speed of modern ultrasonic cutting tools reaches 19,000 to 25,000 revolutions per second. Dunn believes that the groove marks left on the stone of the Great Pyramid are the best evidence of the use of ultrasonic tools.
   So, what is the purpose of the sarcophagus? Where did the power of the high-performance drill bits used by the ancient Egyptians come from? Also, during or after the construction, the interior of the Great Pyramid was pitch black. What lighting did the ancient Egyptians use? In order to answer these questions, Dunn proposed the idea of ​​the Great Pyramid as an “ancient power station”.
   Is the Great Pyramid an “Ancient Power Station”?
   Dunn came up with this idea after investigating the complex geometric structure inside the Great Pyramid. He said that the entire Great Pyramid is a huge generator device. The ancient Egyptians went all out to build the Great Pyramid, and the real purpose was to build a “central power station” with a huge power supply.
   So, where did the ancient Egyptians get the energy to generate huge electricity? Dunn said that some people compare the rotating earth to a giant generator that uses the current flowing in the center of the earth to generate a magnetic field. Based on this, we can regard the earth as a source of sound waves that emit all frequencies. It rotates every 24 hours. The rotation of a circle produces sound waves of various frequencies, among which ultra-low frequency infrasound waves and ultra-high frequency ultrasonic waves are inaudible to human ears. Dunn speculated that the shape of the Great Pyramid makes it a resonant device that can effectively amplify vibration waves from the earth’s interior. The geographic location and structural size of the Great Pyramid are closely related to the earth. It was built into a structure with a “harmonized integer” ratio to the size of the earth, with the purpose of turning the sound waves emitted by the earth into electrical energy.
   Petri once found that the sides of the Great Pyramid are slightly recessed in the middle. If this factor is taken into account, we can confirm that the length of the base of the Great Pyramid is measured three times in sacred time units (1 sacred hour unit ≈ 25 inches). The astronomical constants representing the tropical year, sidereal year, and near point year of the earth. Dunn said that according to the energy absorption principle of resonance and harmonics (integer multiples), the Great Pyramid may correspond to the fundamental vibration frequency emitted by the earth, forming a coupled oscillator that absorbs the earth’s energy.