The Hydraulic Lift Theory Behind Egypt's Step Pyramid of Djoser
Popular MechanicsA 2024 study argues the Step Pyramid of Djoser in Saqqara, Egypt, may have been built with a hydraulic lift that floated stone blocks up from inside. The Step Pyramid is believed to be the oldest of Egypt's seven monumental pyramids, built about 4,500 years ago, so the claim would push major hydraulic engineering earlier than scholars thought.
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