In 1986, French architects, Gilles Dormion and Jean Patrice Goidin, used a microgravimeter inside the Great Pyramid and, after boring 1″ holes several feet into the limestone, found cavities filled with sand behind the west wall of the horizontal passage to the Queen’s Chamber. When analysed, the sand was found to have come from another part of Egypt and had been sifted and enriched with minerals. They were not permitted to dig or tunnel for further investigation. Why was the sand put there and is anything further known about this?
A Curiosity for Science and Links with Ancient History