Trepanning - American Hollow Boring
Trepanning - American Hollow Boring
Mar 20, 2015
amhollow.com
A history of trepanning: Why do we put holes in our skulls?
A history of trepanning: Why do we put holes in our skulls?
Mar 7, 2024
popsci.com
Trepanning is a process whereby a hole is drilled in the skull, and, with evidence going back to prehistoric times, it is one of the oldest surgical practices in history. The earliest trepanned skull was discovered at a Neolithic burial site in France, and is more than 7,000 years old. It may have had a practical effect – to relieve pressure on the skull after an injury – but it could have also been used to give a trapped demon a hole to escape, or so it was believed. Many different civilisation
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FacebookDr.Weird
Check out this special trepanning tool in action this Saturday💥 Unique hole saw for metal cutting Special trepanning tool. ■Cutting condition: Vc = 80 m/min fz = 0.08mm/rev ■Work material: SCM440 We're always pushing the boundaries of what's possible in metal cutting💪 Learn More: https://catalog.tungaloy.com/Applications.aspx?mapp=DR . . . #cuttingtools #ukmfg #holemaking #cncmachining #manufacturingindustry #precisionmachining #cuttingmetal | Tungaloy UK Limited
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