What's the sharpest knife on earth? - Physics Forums
Mar 22, 2007 · Good quality obsidian fractures down to single molecules which can produce a cutting edge 500 times sharper than the sharpest steel scalpel blade ("American Medical …
Mechanism allowing a blade to cut through tissue? - Physics Forums
Sep 21, 2006 · I learned how to knap flint and obsidian years ago, and the guy who put the course together sold his obsidian flakes to be used as scalpel blades. The flakes are essentially 1 …
Create an Augmented Matrix in LaTeX: Step-by-Step Guide
Dec 14, 2006 · Do you mean an augmented matrix? [tex] \left[\begin{array}{ccc|c} a & b & c & d\\ e & f & g & h\\ i & j & k & l\\ ...
How much pressure does it take to pierce human skin? - Physics …
Apr 29, 2010 · It completely depends on the surface area of the piercing, how sharp it is, and to some extent where on the body.
Understanding Newton Force: Real World Examples - Physics Forums
Aug 13, 2022 · I would just like to get a perspective on how much is an x amount of Newtons, like in real world examples. I know everyone says 100N is about equal to the force of a 10kg …