Engineers Found Evidence of Hydraulics in an Ancient Pyramid, Solving a 4,500-Year-Old Mystery

In a preprint paper, scientists concluded that the Step Pyramid of Djoser in Saqqara, Egypt—believed to be the oldest of the ...

Engineers reinvent the parachute using Japanese paper-cutting art Kirigami

A humble concept from ancient Japanese design might remake the way supplies are dropped from the air. Polytechnique Montréal ...