The Great Pyramid of Giza, Egypt Credit: MuYeeTing/Getty Images
The Great Pyramids of Giza, Egypt, are 4,500 years old. Now, for the first time, researchers have drawn in detail a corridor hidden within, and have also used an endoscopic camera to complete a glimpse of what’s going on inside. A related paper was recently published in Nature Communications.
Built in 2560 BC, the pyramid has been the tallest man-made structure in the world for thousands of years at 146 meters. The corridor was first discovered in 2016, but the researchers didn’t want to destroy the pyramid in order to get inside.
Using cosmic ray μ radiography, developed by researchers at Nagoya University in Japan, an international team confirmed that the corridor is 9 meters long and has a cross-section of about 2 meters by 2 meters.
Cosmic ray meson radiography can track the level of μ passing through the pyramid, a natural form of radiation produced by cosmic rays. The researchers placed μ detectors at different locations around the pyramid. μ was used to build the pyramid’s stone partially absorbed, meaning researchers could identify holes inside its structure this way.
This method has been used to map the internal structure of the pyramid since it was first used in the Great Pyramid of Giza in 1971.
Using accurate corridor maps, the researchers identified an opportunity. “We realized it was so close to the surface that an endoscopy was possible.” Sébastien Procureur of the University of Paris-Saclay in France said.
They inserted a small camera similar to that used in medicine to see the hidden corridor for the first time in thousands of years. “We know the hole is there, but when you actually see it, of course it’s completely different.” Procureur said. (Source: Wang Fang, China Science News)
Related paper information:https://doi.org/10.1038/s41467-023-36351-0
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