Great Pyramid of Giza
- March 4, 2023
- Posted by: OptimizeIAS Team
- Category: DPN Topics
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Great Pyramid of Giza
Subject : History
Section: World History
Concept :
- At the main entrance of the 4,500-year-old Great Pyramid of Giza, researchers have discovered a secret passageway.
- According to BBC news, the initial finding was made by the ScanPyramids project in 2016 using a non-invasive method called cosmic-ray muon radiography.
- Since then, researchers have used a variety of techniques to conduct a focused analysis of the discovered structure.
The Great Pyramid
- The Great Pyramid of Giza is the largest Egyptian pyramid and the tomb of Khufu, who is widely regarded as the greatest emperor of ancient Egypt.
- Construction was started in 2550 BC, during the reign of Khufu, often considered the greatest pharaoh of Egypt’s old kingdom.
- The pyramid is the oldest of the Seven Wonders of the Ancient World, and the only one to remain largely intact.
- According to National Geographic, the pyramid was constructed out of 2.5 million stone pieces that each weighed between 2.5 and 15 tonnes.
Cosmic-Ray Muon Radiography (CMR)
- CMR is a technique used to study the density and composition of materials hidden within large and dense objects, such as geological formations, archaeological sites, and industrial facilities.
- The technique involves using muons, a type of cosmic-ray particle, to generate images of the interior of such objects.
- Muon particles are created when cosmic rays, mostly protons and atomic nuclei, collide with atoms in the Earth’s upper atmosphere.
- These muons travel through the atmosphere and penetrate deep into the ground, passing through objects along their path.
- Muons are highly penetrating particles that can penetrate several meters of rock or other materials, making them ideal for imaging the internal structure of objects.
- Working principle
- The principle behind CMR is to measure the flux of muons passing through an object and compare it to the expected flux based on the object’s geometry and composition.
- Differences in the measured and expected flux indicate variations in the object’s density or composition, which can be used to create an image of the object’s internal structure.