Scientists Against Myths | Out-of-place artifact? Myth busting #ancientegypt @ScientistsAgainstMyths | Uploaded April 2024 | Updated October 2024, 1 hour ago.
What's so special about core #7? The famous Egyptologist Flinders Petrie saw grooves forming a regular spiral carving on its surface. At the same time, according to Petrie, the thread pitch was the same everywhere. 2.5 mm with deviations of no more than 0.25 mm. Yes, stone cutters do not have such cutters, capable of going into granite by 2.5 mm per revolution, even in the 21st century!
What's so special about core #7? The famous Egyptologist Flinders Petrie saw grooves forming a regular spiral carving on its surface. At the same time, according to Petrie, the thread pitch was the same everywhere. 2.5 mm with deviations of no more than 0.25 mm. Yes, stone cutters do not have such cutters, capable of going into granite by 2.5 mm per revolution, even in the 21st century!
