If you love medieval weapons this is the one for you. A Roman Ballista is the size of a catapult and the shape of a crossbow. It works using a wood body and tension in rubber bands to fire a projectile.
Its relates to engineering because you need to know your measurements and how to screw the wood together. You need to list out a plan and be organized because they have so many materials that you need to make the Roman Ballista. The Roman Ballista was used to protect the Romans from being invaded and they were manly used to sink ships. This model is very small compared to historic ballista.
