This week in tech class we learned about different types of levers, and built our own levers, shaduf or catapult. Today I’m going to talk about the lever i made. I built a catapult then turned it into a game, the game was an aiming type competition. In class, we learned about the mechanical advantage of levers. Mechanical advantage is basically, how much strength you put in, to how much force you get out. The point of a lever is to give you the biggest possible mechanical advantage.