Giza Pyramid: Evidence Of Ancient Machining. Next to the great pyramid, Yousef Awyan and a team of archaeologists, have discovered very sophisticated ancient technology. If you look carefully you will see vertical lines going down the stone. There are scratches as well, but there seems to be quite a pattern to it as if these cuts were created with a saw. The material that they uses is bath salt. This material is very hard and is not from the local area. So cultures with bronze chisels, bronze saws or even with silica sand as an abrasive could not make that kind of fine finish.
The YouTube video below shows many examples of what looks to be saw cuts used by the Egyptian to build their structures. How could this be possible will with no electrical power in that time? You must see this video with your own eyes. It is absolutely amazing!