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Egyptian pyramids were built originally to bury the Kings Pharaohs, there are about 138 pyramids

 were built in Egypt. The largest of the Egyptian pyramids is the pyramid of Cheops at Giza, which is one of the seven wonders of the ancient world.

The ancient Egyptians were adopted in the construction of the pyramids on the large labor force in the construction of these huge edifices. And he participated in the construction of the pyramid of Cheops in Giza between 20000-30000 man and for a period of up to 23 years, and contrary to popular opinion it is not the slaves who participated in the construction of the pyramids, but the men who have been Aatagahm, according to research Donald Redford, professor of ancient Mediterranean studies at Penn State, who says the peasants who participated in the construction of the pyramids got some incentives such as exemption from tax in addition to housing, food and free clothes.

I have been using limestone to build the basis of the pyramids while used limestone the best quality in the completion of the outer layers of the pyramids, and in addition to the limestone has been used in other Articles of Naba pyramids such as granite, basalt, in the top of the pyramid, which was sometimes coated with gold. It has been used pink granite in the interior walls of the pyramids while the basalt was used in flooring.

Workers used a variety of tools to cut the blocks used in the construction of the pyramids, including hoes and chisels copper and hammers granite, it is being used limestone found near the pyramids which are built where workers cut limestone and then transported to the construction site, and granite and other materials that were come from as far away was transported from the quarries on the boat in the Nile.

The stones are pulled from one place to another on the greasy pillar, and the proof of this, according to Redford comes from the 19th century BC in one of the carvings in the ancient Egyptian cemetery where it appears in the scene 173 men are on the greasy stones withdraw support.

In order to raise the large stones into place once in a pyramid, it was built ladders of bricks were covered with sheets of wax which led to the hardening of the surface, and then the possible withdrawal of the stones to the top until it reaches the place and then carrying out those steps again whenever risen to the top.

The truth is that a lot of people do not know about the Egyptian pyramids, but it was built very long ago in ancient Egypt, and it is a large and impressive structures, built for the burial of the kings of Egypt's pharaohs inside.

In fact, there is information and interesting facts and curiosity; you may not know about this wonderful beautiful structures.

So we offer 10 useful information about the Egyptian pyramids, according to the site

1. the three pyramids in Giza; is the most famous pyramids, and in fact discovered up to about 140 pyramid existed in ancient Egypt, believed to be the oldest Egyptian pyramid is a pyramid «Zoser» which was built in the «Saqqara» cemetery during the century 27 BC.

2 of the original height of the Great Pyramid «Cheops» 146.5 meters «481 feet», while the current height is 138.8 meters «455 feet»

3. Great Pyramid at Giza consists of 2,300,000 stone block, the weight of a single bloc of between 2 and 30 tons, but there are some blocks weighing more than 50 tons.

4. Historians disagree on determining the number of workers who participated in the construction of the pyramids, but the very least, put the number of such workers is 100,000 people.

 5. Each of the Egyptian pyramids were built on the West Bank of the Nile River, it has been linked to the world of the dead in Egyptian mythology.

6. not built the three pyramids in one way, Intrusive used to build the pyramids varied and evolved during the period of construction, and that the average build one pyramid is 20 years, with the knowledge that it was being built more than a pyramid at once.

7. temperature outside the pyramids remain variable according to the general climate, while the temperature inside the pyramids remain relatively constant, at around 20 degrees Celsius.

8. Great Pyramid earned the title of tallest man-made structure for a period of 3871 years, that has been building for Lincoln Cathedral in England in 1311.

9. In the 12th century, Aziz agreed the ruling Kurdish and Sultan second Ayyubid Egypt to demolish the pyramids and completely destroyed, but they abandonment of this agreement because it became clear to them that the task is great and arduous, but the effects of vandalism appeared to clear the pyramid «Menkaure» where he notes the existence of a vertical crack great on the north side.

10. stone pyramids were originally covered with sheath made of white limestone polished, where these stones reflect sunlight, making pyramids shine like jewel.

Thermal survey of the Pyramids project

Team finished "explore the pyramids and the secrets" of thermal surveys using infrared project on the eastern side of the Great Pyramid, in the experience of living amid local and international media coverage and extensive, resulting monitor and identify adult form of excellence of non-traditional forms of thermally shows the east side of Khufu's pyramid at ground level.

This came on the sidelines of the press conference, which was held recently Plateau pyramids to announce the preliminary results relating to the first phase of the project, which comes to cooperation between the Egyptian Ministry of Antiquities and the Faculty of Engineering at Cairo University and 

He explained Dr. Mamdouh Eldamaty, Minister of Antiquities, that through this test Note Task Force variation in temperature of 0.1 to 0.5 degrees between two stones Jarien close proximity different characteristics, where radiation monitoring team infrared in this region, an area made up of several stone blocks contain nearly six degrees of spaces between adjacent blocks, which raises many questions which require further studies to uncover explanations for this phenomenon.

The Eldamaty during a press conference held after the end of the thermal scanning tests, the need to adapt the mechanisms of action different from using the latest scientific techniques available so as to contribute in advancing the process of archaeological work in various fields and to reveal more details and archaeological facts unknown, pointing out that all forms of non-conventional thermally that was recorded during the first phase of the project and what has been compiled from data, will be subject to further analysis with the use of three-dimensional imaging to serve the preparation for the next phase of the project within the next weeks.

Eldamaty He added that he has been the completion of the X-Mission infrared short-term track shapes unfamiliar heat on the surfaces of the pyramids at different times of the day and night, pointing out that what has been done from the thermal measurements allowed staff note a lot of non-traditional forms thermally all archaeological buildings , and the team pays to think of the many possible hypotheses attempt to explain this evidence that may lead us with the completion of the process of work to reveal more of the secrets of the pyramids.

He drew Eldamaty during the conference call for all Egyptologists to search again and taking these preliminary results of the project into consideration, pointing out that there is something what looks like a corridor cut and ground right in front of different heat blocks, which increases the likelihood that something behind these blocks, but it can not be predicted or revealing them only after the completion of all necessary studies.

For his part, Dr. Hany Helal, Minister of the former Education and Scientific Research, the scientific team involved the project take shape its role in the search for evidence and scientific evidence provides an opportunity for archaeologists to research and study on clear scientific grounds, stressing that the research did not stop at this point, but will be the work of search archaeological and architectural and geologist on the region and the use of muon so that we can judge what else these walls behind her, expressing his delight at the fruitful cooperation between the Ministry of Antiquities and the Faculty of Engineering, Cairo University.

It is noteworthy that this huge archaeological project aims to apply the scanning tests and a full year for the largest Egyptian pyramids, including the Pyramid of Khufu, Khafre, the Pyramid curved red pyramid through a combination of the safe to the survey archaeological techniques, which do not penetrate impact in search of places yet to be discovered inside pyramids, as well as to reach a better understanding of the architectural design and how to build it, and combines techniques used between the thermal imaging techniques using infrared and X-ray Balmeon and stereoscopy.the Institute of Heritage Preservation and Innovation in Paris.