Shaving with an Obsidian Razor
(Video Link) Some of you sissies are still sh... ...g Stone Age technology. Watch him knap a slice of obsidian off a block and then shave his face with it. C... ...nd then shave his face with it. Cook refers to obsidian as "the sharpest substance known to science." I d... ...electron micrographs of a...
https://www.neatorama.com/2012/07/08/shaving-with-an-obsidian-razor/
