(NEXSTAR) – For 50 years, a metal propane-tank shaped contraption was buried, forgotten, under San Francisco’s Transamerica Pyramid. But when the iconic building changed hands, its new owners ...
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Engineers Found Evidence of Hydraulics in an Ancient Pyramid, Solving a 4,500-Year-Old Mystery
Here’s what you’ll learn when you read this story: A study suggests that the first of seven key pyramids in Egypt, the Step Pyramid of Djoser, was built using a hydraulic lift. Dated to about 4,500 ...
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