The experimentalist Nikolay Vasiutin copies the ancient Egyptian technology of granite drilling: a copper tube and a grinding agent (corundum). Evidence of ancient machining?

"It often happens that on various Internet forums and social media I have to communicate with people who do argue that ancient Egyptians had zero skills. Though all of us read about them in schoolbooks and watched some films. In other words, ancient Egyptians allegedly didn’t have tools and technologies necessary to create all those things which are shown to touristsin Egypt nowadays.For even guides in the Museum of Egyptian Antiquities in Cairo say they don’t know how such impressive bores in granite could be made".

The experiment was carried out for the ANTROPOGENEZ.RU ([ Ссылка ]).
The video was first presented on June the 5th, 2016, at the "Scientists against Myths" educational forum.
"Principles of tubular free abrasive drilling" (Oleg Krugliakov): [ Ссылка ]
🎬 "Out-of-place artifact: 100 years of deception": [ Ссылка ]

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Experiment participants, apart from Nikolay Vasiutin:
- Aleksandr Sokolov, ANTROPOGENEZ.RU editor;
- Oleg Krugliakov, owner of the "What the ancients could do" forum ([ Ссылка ]);
- Valeriy Senmuth ([ Ссылка ])
- Vladimir Morozov ([ Ссылка ]).

Specifications:
Total work time: 8 hours.
Tube diameter: 50mm.
Drilling depth: 50mm.
Tube runout:15mm.
Total weight of the bitbrace: 11kg.

Camera and edit: Vladimir Morozov ([ Ссылка ]).
Involving music and photos by Valeriy Senmuth ([ Ссылка ]).
English translation: Dmitrij Kazak
English voiceover: Dmitry Oliferovich
French subtitles: Irna Osmanovic
Spanish subtitles: Luca ML
German subtitles: Yury Erofeev

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