How Trebuchets Works

 Today for writing we learned about trebuchets. Trebuchets were a military weapon which could  help people break castles by punching holes in their walls.

Here is the explanation of how a trebuchet works.

Party Popper

My company created a party popper design. 

First we modelled all the parts to see which would be best. For example we used a thicker rubber band instead of a short rubber band. We tested both rubber bands to see which one would hit the cup more effectively. We found out that the thicker rubber band worked more effectively than the shorter rubber band.

Afterwards we assembled our fixes that we are going to use. We changed the small plastic cup into a bigger plastic cup and used a whiteboard marker for our weight to shoot the filling out more stronger. The whiteboard marker was very strong when shooting up to the cup.

Finally we tested all the updated design options.  All of the designed options worked very effectively and strongly. 

I learned a lot about how to design a party popper and what it needs. My company skittle poppers, and I found out that all the parts work strongly and effectively.

 LI: To make a prototype.