It is a truth universally acknowledged, by swordfighters at least, that a curved sword is superior at cutting. But why? Why should the curvature of a blade have such an effect on the effectiveness of its cut? Today I’d like to delve into the physics of swordplay, and examine why cutting swords have the form that they do.
You heard me right.
First of all, what is the katana? It’s a traditional Japanese sword, characterized by a curved, single-edged blade, a short guard that can be round or square, and a hilt that can accommodate two hands. Due to some incredibly good marketing, there are legions of idiots out there with stupid ideas about katanas.