My ninth-grade science project was on primitive weapons. My Dad actually made a short-sword kind of like a gladius with my grandfather's old forge (he used it for welding back in the 60s, lol). My other grandfather made a working model of a ballista. I got third place, lol.
Anyways, here's the writeup I came up with:
Amu-Hah Shekala
Thoughts?