The ancient Greeks discovered how to do just this! They developed a device called the Archimedes screw to lift water from one location ... of positive-displacement pump. A positive-displacement ...

A new study suggests a currently unexplained ancient structure may have been part of a water purification system feeding a hydraulic lift to raise huge stone blocks to build a pyramid. From our ...

For years, Egyptologists have hotly debated how the massive pyramids of ancient Egypt ... might have been enough water to support a system such as the hydraulic lift, said Dr. Judith Bunbury ...

However, experts now think they might have solved the mystery. A new study suggests that the ancient Egyptians used a water 'lift' inside the pyramid. This would have helped raise the heavy stones ...