OTHER+PROJECTILE+LAUNCHERS

====Physics:This torosion catapult uses physics by using the gravity and resistance to create a force that shoots upward at a speed that is high enough to shoot something out from it and send it flying into the air====

===I think that the torosion catapult is better because not only does it shoot something out and send it flying its only one piece that is doing all the swinging rather than a trebuchet and it has a string that swings with the motion of the arm thats throwing it already.. The string will hold back some of the force that the machine is capable of doing but by only using one arm or piece i believe that the torosion catpult is better.===