During this week in our lab
sections we spent our time constructing individual bridges from the knex.
Melissa and I decided to each construct our own bridge and then test them both
to see which held the most weight. With my original design not being long enough,
I had to add another component to my bridge, causing it to be unsymmetrical.
This caused my bridge to fail after only 5 pounds of weight. We decided after
testing to go along with Melissa’s bridge design (even is minor tweaks had to
be made). This week we brought our bridge home with us along with some pieces
we can use to make modifications if needed. We plan to test and modify the
bridge as much as needed to make it as strong as it can be.
My
statements about last week stand the same. I still agree that you can use your
hands to feel and test the strength and compression of the bridge, and I still
agree that we can easily find where the mistakes are made. We learned that
while testing it, it would easily break at the weak spots and they could be easily
determined. I also still do agree that making repairs is much harder with Knex.
After breaking the bridge with testing and determining where the repairs needed
to be made, if one piece had to be changed out for length the whole bridge
needed to be changed. Obviously, if this were a real bridge we would need to be
100% positive that the bridge was sturdy because it would cost hundreds of
thousands of dollars to construct and if it broke a new design would have to be
made. With Knex, there are no repercussions for breaking it and making it all
over.
Kelsey McSorley
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