The Great Pyramid
The Great Pyramid or the Pyramid of Khufu is the only surviving remnant of the Seven Wonders of the World. It is located in the Giza Pyramids area of Egypt, which is registered with UNESCO World Heritage Sites. The construction of the pyramid dates back to about 2560 BC, where the fourth family Khufu was built as a cemetery for Pharaoh and continued to build for 20 years. The construction of the Great Pyramid is a major cultural shift in the history of ancient Egypt. Khufu was influenced by his father King Senefro in building his pyramid. After his death, Khufu became the ruler of the land. It was necessary to think about building his tomb, which is the first national project in ancient Egypt. It was built by professional workers from all over Egypt. The Great Pyramid, with its original height of 148 meters, remained the highest human-built building on the earth in 3,800 years.
Prince Imanu was the architect of King Khufu – and there is a statue larger than the normal size of limestone preserved in the Romer-Belizius Museum in Hildesheim, Germany. The priests and engineers were sent to the city of On to choose a name for the pyramid. That name was “Khufu’s sister,” meaning “the horizon of Khufu.” It represents the horizon from which the god of the sun will ride from the sun to sail and blaspheme the stars, and he will kill the evil spirits in the other world with his mages of evil, and his people will sanctify him. King Khufu is the first king to consider himself the god Ra on earth [?]. We note that his son Khafra and his grandson Menqra enter in their name the name of God Ra.
Description of the pyramid and its history
The pyramid was built as a tomb of Pharaoh the fourth Egyptian family Khufu and continued to build for a period of 20 years. Some archaeologists believe that the titian (minister) Ham Ionu is the architect of the Great Pyramid.  It is believed that the Great Pyramid during the construction was 280 feet in the Egyptian scale 146.5 meters (480.6 feet), but with the erosion and the absence of its pyramid piece, the current height is 138.8 meters (455.4 feet). Each side of the base had 440 arm [?] 230.4 meters (755.9 feet) long. The mass of the pyramid is estimated at 5.9 million tons. The size of the pyramid in addition to the inner wall is about 2.5 million cubic meters.  Based on these estimates, building the pyramid in 20 years requires the cutting, transport and installation of approximately 800 tons of stones per day. Similarly, because it consists of an estimated 2.3 million stone blocks, completion of construction in 20 years needs to move about 12 blocks of stone to its location every hour day and night. The first accurate measurements of the pyramid were made by the Egyptian scholar Sir Flinders Petrie from 1880 to 1882 and published as pyramids and temples of Giza.  Almost all reports are based on its measurements. Many of the cladding stones and inner chamber blocks fit with each other finely. Based on the measurements taken for the north-east side cladding, the main entrance of the main entrance was only 0.5 mm. 
The Great Pyramid remained the tallest building in the world, 3,800 years ago,  and was not surpassed by another building until the height of the Lincoln Cathedral was built at a height of 160 meters (1300 AD). The precision of mastering the construction of the pyramid is in the four sides of the base. The mean error rate is 58 mm in length. Pyramid’s lengths of the pyramid in 1925 are 230,252 meters, 230,454 meters and 230,391 meters.  The base of the pyramid is horizontal and flat within ± 15 mm (0.6 inches).  The sides of the square base align with the four originals of the compass (within 4 arc minutes)  on the real north, not the magnetic north,  and the final base was squarely angled in the angle with an average of 12 arc seconds. The dimensions of the final design, as suggested by the Petri study and the following studies, are: The height was originally 280 cubits and the length of the side of the pyramid was 440 cubits. The circumference of the pyramid is 1760, an ancient Egyptian arm. The ratio between ocean and altitude 1760/280, equivalent to 2 i and is different from the exact value of [i] by only 0.05%. Some Egyptian scientists consider this percentage to be deliberate at design time. Referring to this fact, Werner wrote: “We can conclude that although ancient Egyptians did not know the exact value of ((i), they actually used it.
After the engineers chose the Giza Plateau with its solid rock floor to build the pyramid they began with the workers to settle the surface around the pyramid to be built to be the foundation. They measured and identified the positions of the pillars to be each pyramid’s interface heading towards the geographical regions: North, South, East, and West. Workers broke all the pyramid’s sides of the rocks and moved the debris away from the site. Thus, the engineers took advantage of a prominent part of the plateau rock to make it part of the lower layer of the pyramid. The plateau rock now appears in some parts of the pyramid in the first or second layer. They formed the part of the Dakhla plateau from inside the pyramid building to be included so that the stones would be easier to stone afterwards, and fill it with cracks with stones to complete the settlement. They then covered the first layer of the sides with limestone blocks of white limestone from the quarries of Tara so that the ribs of the pyramid and the existing angles of its arches could be controlled. The foundation was adjusted very carefully: the difference in height is not more than 21 millimeters. The measurements have been done very well to the sides of the pyramid, although the height of the rock floor in the middle was a barrier to measure the axes. The difference from the north direction is not more than 3’6 “towards the west. The length of the pyramid’s ribs is not much different than the 440-meter (230,383 m) size; on the southern side, 7 centimeters, and on the northern side, 13 centimeters. Corner angles were also very accurate; angle 2 was “at the northwest corner, 3 °” at the north-east corner, 33 ° at the south-east corner and 33 at the south-west. The angle of the slope of the pyramid is 51 ° 50’40 “, which is according to the old Egyptian scale equivalent to the height of the arm with a horizontal offset of five and a half to display the hand. This slope makes the pyramid up to a height of 280 arm (= 146.59 meters). The height of the pyramid today 138,75 meters, where the demolition of part of the summit throughout the ages.  According to the ancient Egyptian standards: 1 arm (old royal arm) = 7 hand offers; for this the slope angle of the pyramid surface is calculated by the height to the horizontal offset as follows: 7: 5,5 = 14:11 = 28:22 = 280: 220 = shadow Angle 50.84 degrees. Today’s pyramid surfaces are curved and not perfectly flat. The surface of the northern surface is 0.94 meters.
The Khufu pyramid was covered with a smooth layer of white turquoise stones. However, most of these stones have been used in the construction of Cairo, making the inner part of the pyramid visible and its stratified layers. Some parts of coverage are seen in the lower layer of the pyramid. On some of the stones of this coverage are writings and signs written by groups of workers at work, and those signs and writings are written in red. The pyramid was covered and ends up from the top of Pyramidion Pyramid. This small pyramid is missing today and most probably it was a stone of a kind other than stone, but of basalt or granite.
Pyramid heart stones consist of limestone.  The stones were cut into cubes or rectangles of about 1 m or 1.5 m high. Today there are 203 layers, where the seven layers that formed the summit were destroyed over time. The weight of the stone in the upper layers is about 1 ton and in the lower layers between 2 – 3 tons.
The building of the king’s chamber was built with large pieces of stone weighing between 40 and 70 tons of red granites, which were moved to a height of 70 meters during construction to place them.  The workers were writing signs of some stones during the construction process, as in the buildings to reduce the pressure on the ceilings of the rooms, which reflect the scales and names of the working groups, and in two cases the name of Khufu.  Some of these writings were also found in red and black on some stones 5 and 6, and were discovered by Leslie Greensel on bare stones…..continue