The Pipa Knot is a unique Chinese Macrame knot that is based on the Figure 8 shape. This historical knot has been around for a long time. It's been seen frequently on ancient Oriental clothing as a ...

A study suggests 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 major ...