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Making Egyptian Drill Holes: Lost Ancient High Technology
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Making Egyptian Drill Holes: Lost Ancient High Technology
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Nope. Aliens.
[literally](https://comixtreme2017.files.wordpress.com/2018/02/get.jpg) aliens.
Copper/arsenial copper tube + abrasive is how this is done. The tube doesn’t do the cutting, the abrasive does – this is the most common misconception regarding the use of copper tools. You can cut/drill through granite by hand with simple tools, no lost ancient high technology needed.