STEEL SCALPEL OBSIDIAN SCALPEL ES 5,000x Magnilication To demonstrate the sharpness of stone tools, Archaeologist Dr. Adrien Hannus elected to have major surgery done with obsidian blades rather than surgical steel scalpels.
How Sharp is an Obsidian Knife?
How obsidian Stone Age knives still cut it in surgery | CNN
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How obsidian Stone Age knives still cut it in surgery | CNN
How obsidian Stone Age knives still cut it in surgery | CNN
Steel vs Obsidian Surgical Blades Under an Electric Scanning Microscope : r/interestingasfuck
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Your Guide To Modern Obsidian Knives (And Where To Buy One)
Obsidian blades are five hundred times sharper than the sharpest steel blade. : r/knives