Mechanical Leverage in Ancient Quarrying: The Scissor-Action Static Pivot Wedge Hypothesis for Granite Excavation at Aswan

ABSTRACTThe enigmatic "scoop marks" observed on the vertical trench walls surrounding the Unfinished Obelisk in Aswan, Egypt, have long puzzled engineers and archaeologists. Traditional theories suggest these consistent, concave indentations were created by manually pounding the hyper-hard red granite with 5 kg dolerite ball hammers over decades. This paper challenges that labor-intensive model by introducing a high-efficiency alternative: the **Scissor-Action Static Pivot Wedge Hypothesis**. Utilizing basic laws of physical mechanics and tensile stress distribution, this model proposes the use of a mechanical lever expansion tool operating on a fixed axis within narrow subterranean shafts. By transforming downward vertical force into immense outward lateral tension, this scissor-like tool targets the inherently weak tensile threshold of granite. This paper demonstrates that the consistency, curvature, and scale of the Aswan scoop marks are a direct mechanical byproduct of a fixed-radius scissor-lever system, operating within the boundaries of ancient metallurgic and hardwood material capacities.