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The Surprisingly Plausible Theory that the Pyramids were Poured from Ancient Concrete The Egyptian pyramids at Giza are among the most famous and storied monuments in the world. The oldest  of the seven wonders of the ancient world – and the only ones still standing – they have awed and inspired travellers, scholars, poets, and artists for thousand  of years. Yet despite this timeless fascination, relatively little is known about who built the pyramids or why. Few records survive of the pharaohs Khufu, Khafre, and Menkaure, and while the pyramids are assumed to be tombs, there is surprisingly little evidence of anyone actually being buried within them. Yet the greatest mystery of all is how the pyramids were actually built. The Great Pyramid of Khufu stands 146 metres tall, weighs 6 million tons, and is composed of nearly 2.3 million granite and limestone blocks weighing up to 80 tons each. Yet the structure is nearly perfectly level and square, the blocks so close-fitting tha

Great pyramidAl jizahPyramids of gizaJoseph davidovitsDipayan janaZahi hawassMichelw barsoumSheila roseJames storemyrJacques chiracDrexel university college of engineeringOrdre national du meriteProfessorship of applied archaeology at barry universityColumbia universityAntiquities affairsPhiladelphia drexel university