For the manila bridge challenge, my partner Tommy and I used interlocking sections of folder, combined with the structural integrity of triangles, to create a very strong structure that spanned the gap presented to us. We cut the manila folders from the edges and had them interlock together, and then reinforced the connections with tape. This made the structure roughly 2.5 folders long. We then folded the structure into a triangle, and held the triangle together from the bottom with tape. the ends of the bridge spread out to provide a greater surface area to disperse the weight into. The resulting structure was able to hold eleven magazines of various sizes.

Centroids Pt. 2

For centroids pt. 2, my group and I used the effects of gravity to help locate the position of our shape's centroid. We attached a piece a weighted string to a point on the shape's perimeter, and then attached that to a wall. When both the shape and the string were allowed to hang freely, the string overlapped the centroid somewhere along its length. By repeating this process three times, we were able to determine the location of the centroid by seeing where the strings intersected.