New Evidence Suggests Hydraulics Built the Ancient Pyramids

A new study suggests that the Step Pyramid of Djoser may have been constructed using a sophisticated hydraulic lift system, which used water pressure to raise massive stones from the interior in a "volcano fashion." Researchers identified nearby structures, including the Gisr el-Mudir enclosure, as part of a complex water treatment and management network that provided the necessary flow and purification to power this unprecedented engineering feat.