This 4500-Year-Old Ramp Contraption May Have Been Used to Build Egypt's Great Pyramid - Live Science

Live Science

This 4500-Year-Old Ramp Contraption May Have Been Used to Build Egypt's Great Pyramid Live Science "Thissystem is composed of a central ramp flanked by two staircases with numerous post holes," Yannis Gourdon, co-director of the joint mission at Hatnub, told Live Science. "Using a sled which carried a stone block and was attached with ropes to these ... and more »