Water could have helped assist the Egyptians in building the pyramids in the middle of the desert, a new study suggests. A series of dams and channels have been discovered near the Step Pyramid. Archaeologists believe that funnels of pressurised water created a hydraulic lift that could help raise the huge stones. The Egyptians invented hydraulics, building water mills and irrigation systems. It was previously believed that they used ramps, levers and pulleys to build the Pyramids. The new hydraulic lift theory comes as the pyramid sits near a long-lost branch of the River Nile, while the dam …