Last weekend Ryan built his war machine. He's been needing a project, one preferably masculine. This is called a trebuchet. Not to be confused with a catapult. A trebuchet is a siege engine that was employed in the Middle Ages either to smash masonry walls or to throw projectiles over them. It is sometimes called a "counterweight trebuchet" or "counterpoise trebuchet" in order to distinguish it from an earlier weapon that has come to be called the "traction trebuchet", the original version with pulling men instead of a counterweight. It originally made its debut in the 12th century.