Today, Jackson brought a trebuchet, or a catapult. It has a counterweight (the big box), a throwing arm, and a pouch to launch a small clay ball approximately 20 feet. In this picture, the trebuchet is loaded. In one of the pictures below, Jackson is loading the trebuchet. It launched halfway across the hallway! Mrs.Sims almost got hit by the soft projectile! SO COOL! (Just in case you were wondering, he bought it at Hobby Lobby.) 
Launch!
The suspense is killing me!
Loading...
3...2...1...LAUNCH!
Birds eye view.
Checking for friction.
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