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Many of the holes and cores that were found in Egypt have regular helical grooves with quite a large pitch (>1mm/rev). As the link you posted showed, the grooves in the core seem irregular and horizontal... That's strong evidence that many ancient holes were not ground.
- Method of Investigation
- Findings on The Impression
- Functional Analysis
Some of the procedures that we have employed in this investigation have been previously reported. They have been used to analyze (1) beads from Shar-i-Sokhta, an Early Bronze Age site in eastern Iran; (2) ancient Near Eastern cylinder seals; (3) the drilled, inlaid teeth of the ancient Maya; (4) an Early Bronze Age Cycladic statuette, and (5) stone...
The regular concentric lines are clearly visible macroscopically on the impression (Fig. 3). They are quite similar to those found and reported by Petrie. Several characteristics are obvious from a study of the silicone impressions: 1. The drilling was done entirely from one end with a relatively slight taper. Over the 24 cm. length of the drill ho...
A slab of red granite similar to that of the sarcophagus was drilled with a copper rod and/or a copper tube in conjunction with the following abrasives: (their Mohs scale of hardness is placed alo...Drilling was also attempted with (a) chipped flint (7); (b) shaped sandstone (7); (c) shaped quartzite (7).The abrasives listed were used in the following manner (a) dry, (b) wet, (c) in a grease-like vehicle or lubricant, (d) inolive oil, (e) experimentally glued (by us) to a copper rod, (f) on a conte...The size of the abrasives varied to include 60-90 grit and 240 grit.Petrie's Egyptian Core #7 An Advanced Primitive Machining Explanation. By Joel M Williams (text and images ©2015) Abstract. Based on the chemistry of minerals, Petrie's "Infamous Core #7" is shown to have been produced easily by milling techniques far less advanced than those espoused to exceed modern milling technology.
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27 de mai. de 2020 · #lostancienthightechnology #granitecores #core7Wow!Turns out that this ancient Egyptian driiling technique for grante cores not only works. It is perfect eve...
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- SGD Sacred Geometry Decoded
Egyptian core drilling hole and Core 7. It seemed from the evidence described by Petrie that a sure way to create the spiral groove was to use a process whereby the tool oscillated, like a jack hammer or hammer drill, while it turned.
1 de mar. de 2015 · Based on the chemistry of minerals, Petrie's "Infamous Core #7" is shown to have been produced easily by milling techniques far less advanced than those espoused to exceed modern milling technolog
22 de mai. de 2015 · However, it does contain important information needed to uncover the secrets of ancient Egyptian technology—one which is almost invisible to the naked eye. This fragment has several vestiges of what resemble drill holes, cut at slightly different angles.
