J'ai vu une vidéo d'une incision pratiquée sur la peau avec une lame d' obsidienne, et la plaie ne saignait pas. Comment est-ce possible ? - Quora
![A steel blade at its sharpest has an edge only three molecules wide, but obsidian at its sharpest, has an edge width only one molecule wide. It's so sharp, you often won't A steel blade at its sharpest has an edge only three molecules wide, but obsidian at its sharpest, has an edge width only one molecule wide. It's so sharp, you often won't](https://i.redd.it/a-steel-blade-at-its-sharpest-has-an-edge-only-three-v0-kxg3sy3jugx91.jpg?width=1490&format=pjpg&auto=webp&s=9d0bdc93defc057fa1f2008afb53ff0545027a2e)
A steel blade at its sharpest has an edge only three molecules wide, but obsidian at its sharpest, has an edge width only one molecule wide. It's so sharp, you often won't
![The Precision of the Surgical Knife- The Best Thing Since Sliced Flesh - Rocky Mountain Brain and Spine Institute The Precision of the Surgical Knife- The Best Thing Since Sliced Flesh - Rocky Mountain Brain and Spine Institute](https://rockymountainbrainandspineinstitute.com/wp-content/uploads/2020/10/The-Precision-of-the-Surgical-Knife-The-Best-Thing-Since-Sliced-Flesh.png)
The Precision of the Surgical Knife- The Best Thing Since Sliced Flesh - Rocky Mountain Brain and Spine Institute
![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. 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.](https://imageproxyb.ifunny.co/crop:x-20,resize:640x,quality:90x75/images/492c817c44b7356c813df180d3a2dcf97147be519a6113f05d7af478d3db8de7_1.jpg)