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 ...

The Intergovernmental Panel on Climate Change (IPCC) and Albert Arnold (Al) Gore Jr. have been awarded the Nobel Peace Prize "for their efforts to build up and disseminate greater knowledge about ...