LI: The forces of pull and push
I researched catapults and created them from just newspapers and tape to learn about the forces of pull and push.
Catapults are siege weapons and are used to take down walls and fortresses. I joined a group of two other people to make an information guide on the three designs of catapults. Mangonel catapults is the classical one using an arm and a bowl to launch ammunition. Ballistas are like giant crossbows using ballistas bolts being similar to dense and thick javelins. Last but not least is the Trebuchet, they are the largest catapults and are similar to Mangonel. Except they use two string to hold the bowl and throw the ammunition.
Afterwards I started on creating my catapults.I went into a different group to start. First was the base structure. We rolled the newspapers and held them together with tape to make it denser and for it to become stronger. After we started on the base that holds the force of the arm to make the ammunition launch. Next we used the strucutre to add the arm that would be caught by the base and added an arm. We tested it a few times with a rubber band and the arm based broke so we created a larger stronger one to catch the force. after a while the rubber band broke and the arm fell so we reattached it.
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