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Joseph Davidovits
Joseph Davidovits (born 23 March 1935) is a French materials scientist known for the invention of geopolymer chemistry. He posited that the blocks of the Great Pyramid are not carved stone but mostly a form of limestone concrete or man-made stone. He holds the Ordre National du Mérite. Limestone concrete hypothesis Davidovits believes that the blocks of the pyramid are not carved stone, but mostly a form of limestone concrete and that they were "cast" as with modern concrete. According to this hypothesis, soft limestone with a high kaolinite content was quarried in the wadi on the south of the Giza Plateau. The limestone was then dissolved in large, Nile-fed pools until it became a watery slurry. Lime (found in the ash of cooking fires) and natron (also used by the Egyptians in mummification) were mixed in. The pools were then left to evaporate, leaving behind a moist, clay-like mixture. This wet "concrete" would be carried to the construction site where it would be packed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Famine Stela
The Famine Stela is an inscription written in Egyptian hieroglyphs located on Sehel Island in the Nile near Aswan in Egypt, which tells of a seven-year period of drought and famine during the reign of pharaoh Djoser of the Third Dynasty. It is thought that the stele was inscribed during the Ptolemaic Kingdom, which ruled from 332 to 31 BC. Description The Famine Stela was inscribed into a natural granite block whose surface was cut into the rectangular shape of a stela. The inscription is written in hieroglyphs and contains 32 columns. The top part of the stele depicts three Egyptian deities: Khnum, Satis and Anuket. In front of them, Djoser faces them, carrying offerings in his outstretched hands. A broad fissure, which already was there at the time of creating the stela, goes through the middle of the rock. Some sections of the stela are damaged, making a few passages of the text unreadable. The inscription The story told on the stela is set in the 18th year of the reign ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
French Egyptologists
French (french: français(e), link=no) may refer to: * Something of, from, or related to France ** French language, which originated in France, and its various dialects and accents ** French people, a nation and ethnic group identified with France ** French cuisine, cooking traditions and practices Fortnite French places Arts and media * The French (band), a British rock band * "French" (episode), a live-action episode of ''The Super Mario Bros. Super Show!'' * ''Française'' (film), 2008 * French Stewart (born 1964), American actor Other uses * French (surname), a surname (including a list of people with the name) * French (tunic), a particular type of military jacket or tunic used in the Russian Empire and Soviet Union * French's, an American brand of mustard condiment * French catheter scale, a unit of measurement of diameter * French Defence, a chess opening * French kiss, a type of kiss involving the tongue See also * France (other) * Franch, a surname * French ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Living People
Related categories * :Year of birth missing (living people) / :Year of birth unknown * :Date of birth missing (living people) / :Date of birth unknown * :Place of birth missing (living people) / :Place of birth unknown * :Year of death missing / :Year of death unknown * :Date of death missing / :Date of death unknown * :Place of death missing / :Place of death unknown * :Missing middle or first names See also * :Dead people * :Template:L, which generates this category or death years, and birth year and sort keys. : {{DEFAULTSORT:Living people 21st-century people People by status ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1935 Births
Events January * January 7 – Italian premier Benito Mussolini and French Foreign Minister Pierre Laval conclude Franco-Italian Agreement of 1935, an agreement, in which each power agrees not to oppose the other's colonial claims. * January 12 – Amelia Earhart becomes the first person to successfully complete a solo flight from Hawaii to California, a distance of 2,408 miles. * January 13 – A plebiscite in the Saar (League of Nations), Territory of the Saar Basin shows that 90.3% of those voting wish to join Germany. * January 24 – The first canned beer is sold in Richmond, Virginia, United States, by Gottfried Krueger Brewing Company. February * February 6 – Parker Brothers begins selling the board game Monopoly (game), Monopoly in the United States. * February 13 – Richard Hauptmann is convicted and sentenced to death for the kidnapping and murder of Charles Lindbergh Jr. in the United States. * February 15 – The discovery and clinical development of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Egyptian Pyramid Construction Techniques
Egyptian pyramid construction techniques are the controversial subject of many hypotheses. These techniques seem to have developed over time; later pyramids were not constructed in the same way as earlier ones. Most of the construction hypotheses are based on the belief that huge stones were carved from quarries with copper chisels, and these blocks were then dragged and lifted into position. Disagreements chiefly concern the methods used to move and place the stones. In addition to the many unresolved arguments about the construction techniques, there have been disagreements as to the kind of workforce used. The Greeks, many years after the event, believed that the pyramids must have been built by slave labor. Archaeologists now believe that the Great Pyramid of Giza (at least) was built by tens of thousands of skilled workers who camped near the pyramids and worked for a salary or as a form of tax payment (levy) until the construction was completed, pointing to workers' cemeteri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pyramids
A pyramid (from el, πυραμίς ') is a structure whose outer surfaces are triangular and converge to a single step at the top, making the shape roughly a pyramid in the geometric sense. The base of a pyramid can be trilateral, quadrilateral, or of any polygon shape. As such, a pyramid has at least three outer triangular surfaces (at least four faces including the base). The square pyramid, with a square base and four triangular outer surfaces, is a common version. A pyramid's design, with the majority of the weight closer to the ground and with the pyramidion at the apex, means that less material higher up on the pyramid will be pushing down from above. This distribution of weight allowed early civilizations to create stable monumental structures. Civilizations in many parts of the world have built pyramids. The largest pyramid by volume is the Great Pyramid of Cholula, in the Mexican state of Puebla. For thousands of years, the largest structures on Earth were pyramid ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Great Pyramids Of Giza
The Giza pyramid complex ( ar, مجمع أهرامات الجيزة), also called the Giza necropolis, is the site on the Giza Plateau in Greater Cairo, Egypt that includes the Great Pyramid of Giza, the Pyramid of Khafre, and the Pyramid of Menkaure, along with their associated pyramid complexes and the Great Sphinx of Giza. All were built during the Fourth Dynasty of the Old Kingdom of Ancient Egypt, between 2600 and 2500 BC. The site also includes several cemeteries and the remains of a workers' village. The site is at the edges of the Western Desert, approximately west of the Nile River in the city of Giza, and about southwest of the city centre of Cairo. Along with nearby Memphis, the site was inscribed on the UNESCO World Heritage List in 1979. The Great Pyramid and the Pyramid of Khafre are the largest pyramids built in ancient Egypt, and they have historically been common as emblems of Ancient Egypt in the Western imagination. They were popularised in Hellenistic ti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Drexel University
Drexel University is a private research university with its main campus in Philadelphia, Pennsylvania. Drexel's undergraduate school was founded in 1891 by Anthony J. Drexel, a financier and philanthropist. Founded as Drexel Institute of Art, Science and Industry, it was renamed Drexel Institute of Technology in 1936, before assuming its current name in 1970. , more than 24,000 students were enrolled in over 70 undergraduate programs and more than 100 master's, doctoral, and professional programs at the university. Drexel's cooperative education program (co-op) is a prominent aspect of the school's degree programs, offering students the opportunity to gain up to 18 months of paid, full-time work experience in a field relevant to their undergraduate major or graduate degree program prior to graduation. History Drexel University was founded in 1891 as the Drexel Institute of Art, Science and Industry, by Philadelphia financier and philanthropist Anthony J. Drexel. The orig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hieroglyphic
Egyptian hieroglyphs (, ) were the formal writing system used in Ancient Egypt, used for writing the Egyptian language. Hieroglyphs combined logographic, syllabic and alphabetic elements, with some 1,000 distinct characters.There were about 1,000 graphemes in the Old Kingdom period, reduced to around 750 to 850 in the classical language of the Middle Kingdom, but inflated to the order of some 5,000 signs in the Ptolemaic period. Antonio Loprieno, ''Ancient Egyptian: A Linguistic Introduction'' (Cambridge: Cambridge UP, 1995), p. 12. Cursive hieroglyphs were used for Ancient Egyptian literature, religious literature on papyrus and wood. The later hieratic and demotic (Egyptian), demotic Egyptian scripts were derived from hieroglyphic writing, as was the Proto-Sinaitic script that later evolved into the Phoenician alphabet. Through the Phoenician alphabet's major child systems (the Greek alphabet, Greek and Aramaic alphabet, Aramaic scripts), the Egyptian hieroglyphic script is ance ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mummy
A mummy is a dead human or an animal whose soft tissues and organs have been preserved by either intentional or accidental exposure to chemicals, extreme cold, very low humidity, or lack of air, so that the recovered body does not decay further if kept in cool and dry conditions. Some authorities restrict the use of the term to bodies deliberately embalmed with chemicals, but the use of the word to cover accidentally desiccated bodies goes back to at least 1615 AD (see the section Etymology and meaning). Mummies of humans and animals have been found on every continent, both as a result of natural preservation through unusual conditions, and as cultural artifacts. Over one million animal mummies have been found in Egypt, many of which are cats. Many of the Egyptian animal mummies are sacred ibis, and radiocarbon dating suggests the Egyptian Ibis mummies that have been analyzed were from time frame that falls between approximately 450 and 250 BC. In addition to the mummies ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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