As part of the renovation, Farr installs new frosted glass cabinets with custom hydraulic hinges that allow the door to lift up vertically instead of outward like traditional cabinet doors.

Now, a team of engineers and geologists brings a new theory to the table — a hydraulic lift device that would have floated the heavy stones up through the middle of Egypt’s oldest pyramid ...

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 years ago, this would move up the introduction of ...