The Egyptian pyramids are ancient masonry structures located in Egypt. Sources cite at least 118 identified "Egyptian" pyramids. Approximately 80 pyramids were built within the Kingdom of Kush, now located in the modern country of Sudan. Of those located in modern Egypt, most were built as tombs for the country's pharaohs and their consorts during the Old and Middle Kingdom periods.
The earliest known Egyptian pyramids are found at Saqqara, northwest of Memphis, although at least one step-pyramid-like structure has been found at Saqqara, dating to the First Dynasty: Mastaba 3808, which has been attributed to the reign of Pharaoh Anedjib, with inscriptions, and other archaeological remains of the period, suggesting there may have been others. The otherwise earliest among these is the Pyramid of Djoser built during the Third Dynasty. This pyramid and its surrounding complex are generally considered to be the world's oldest monumental structures constructed of dressed masonry.
The most famous Egyptian pyramids are those found at Giza, on the outskirts of Cairo. Several of the Giza pyramids are counted among the largest structures ever built. The Pyramid of Khufu is the largest Egyptian pyramid. It is the only one of the Seven Wonders of the Ancient World still in existence, despite its being the oldest wonder by about 2,000 years.
The name for a pyramid in Egyptian is myr, written with symbol (O24 in the Gardner Sign List). Myr is preceded by three other signs used as phonetics. The meaning of myr is unclear, as it only self-references the built object itself. By contrast architecture of similar function like 'temple', per-ka, is a compound of 'house' and 'soul'. It has been speculated myr belongs to a class of words like djed and ankh, which refer to objects already in existence when the Egyptian language split off from afroasiatic. A typical translation of myr is given as 'High Place'.
By graphical analysis, myr uses the same sign, O24, as benben. The benben is the mound of existence that rose of out of the abyss, nun, in the Egyptian creation myth.
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Ce cours entend exposer les fondements de la géométrie à un triple titre :
1/ de technique mathématique essentielle au processus de conception du projet,
2/ d'objet privilégié des logiciels de concept
Khufu or Cheops was an ancient Egyptian monarch who was the second pharaoh of the Fourth Dynasty, in the first half of the Old Kingdom period (26th century BC). Khufu succeeded his father Sneferu as king. He is generally accepted as having commissioned the Great Pyramid of Giza, one of the Seven Wonders of the Ancient World, but many other aspects of his reign are poorly documented. The only completely preserved portrait of the king is a three-inch high ivory figurine found in a temple ruin of a later period at Abydos in 1903.
Khafre (ḫꜥ.f-rꜥ "He appears as Ra", also read as Khafra and Χεφρῆν Khephren or Chephren) was an ancient Egyptian pharaoh of the Fourth Dynasty during the Old Kingdom. He was the son of Khufu and the successor of Djedefre. According to the ancient historian Manetho, Khafre was followed by king Bikheris, but according to archaeological evidence he was instead followed by king Menkaure. Khafre was the builder who made the second largest pyramid at Giza.
Egypt (مصر ALA mɑsʕr), officially the Arab Republic of Egypt, is a transcontinental country spanning the northeast corner of Africa and the Sinai Peninsula in the southwest corner of Asia. It is bordered by the Mediterranean Sea to the north, the Gaza Strip of Palestine and Israel to the northeast, the Red Sea to the east, Sudan to the south, and Libya to the west. The Gulf of Aqaba in the northeast separates Egypt from Jordan and Saudi Arabia.
A 3D printed bio-composite removable connection system for bamboo space structures is introduced in this paper. The system consists of a removable clipping connection for raw bamboo structures, adapted to the European market. The use of parametric design a ...
2021
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Solute accelerated cross-slip of pyramidal < c + a > screw dislocations has recently been recognized as a crucial mechanism in enhancing the ductility of solid-solution Mg alloys. In pure Mg, cross-slip is ineffective owing to the energy difference between ...
PERGAMON-ELSEVIER SCIENCE LTD2020
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We present a novel method to perform numerical integration over curved polyhedra enclosed by high-order parametric surfaces. Such a polyhedron is first decomposed into a set of triangular and/or rectangular pyramids, whose certain faces correspond to the g ...