For millennia, the Great Pyramids have stood as sentinels of the past, marking the graves of many celebrated Egyptian rulers. As they studied these colossal monuments, engineers have been taunted by one question: how did the ancient Egyptians manage to raise such massive structures? Now engineers test an innovative new theory about the construction of the pyramids. Features expert insights from historians, scientists, and engineers plus some astonishing demonstrations of ancient feats.
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