Decades-Long Mystery of Great Pyramid Construction Potentially Unraveled by New Research
For many years, experts have grappled with the enigma of how Egypt's Great Pyramid was constructed, a feat requiring the lifting and positioning of millions of massive stones, some weighing as much as 15 tons, without the aid of modern machinery. This puzzle has spawned numerous theories, but a recent study published in the journal Nature offers a compelling new explanation.
Spiral Ramp System Proposed as Key to Architectural Marvel
The research suggests that a multi-channel system of ramps, integrated directly into the pyramid's edges, could be the solution. Specifically, the paper focuses on the Pyramid of Khufu in Giza, proposing that a spiral ramp system was used during construction. As each new layer was added, these ramps were concealed, leaving no visible trace in the finished structure.
This model not only illuminates the logistical possibilities but also provides estimates for the construction timeline. To complete the pyramid within Pharaoh Khufu's approximately 27-year reign, ancient builders would have needed to place a block every few minutes.
3D Simulations and Historical Evidence Support the Theory
Vicente Luis Rosell Roig developed a detailed 3D model to demonstrate how such a multi-ramp system could maintain this rapid pace. Simulations indicate that blocks could have been placed every four to six minutes, resulting in an estimated build time of 13.8 to 20.6 years. When accounting for activities like quarrying, transporting materials across the Nile, and worker breaks, the total timeline extends to about 20 to 27 years, aligning with existing historical estimates.
Roig began conceptualizing this idea in 2020 after viewing a documentary, progressing from hand sketches to a comprehensive 3D simulation that models the construction block by block.
Internal Anomalies and Archaeological Corroboration
The theory gains further credibility from internal pyramid features. The geometry of the proposed ramp paths matches anomalies detected by the ScanPyramids project, which used cosmic-ray muons to identify hidden voids within the structure. Additionally, significant wear observed at the pyramid's corners, especially the southeast, could indicate entry points where block flow was highest and the structure was most vulnerable.
According to the study, the ramp system would have been central, with sections of the outer stone layers temporarily left open to form upward paths that were filled in as construction advanced. Replicating ramps on all four faces would create a unified solution.
Addressing Challenges and Broader Implications
One major challenge for any construction theory is explaining how granite beams weighing 50 to 80 tons reached the King's Chamber. The study proposes that short, reusable ramps on the lower terraces, using wooden bollards for control, could have facilitated this movement.
Archaeological evidence from the Hatnub quarries, showing ramps carved directly into rock for load distribution, and from the Sinki pyramid, which features four ramps, one per face, further supports this approach.
The implications of this research extend beyond the Great Pyramid. The framework could be adapted to test construction theories for other ancient structures, offering insights into how ancient builders tackled complex problems with available technology.
