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Popsicle stick bridge help?

In my physics class, our teacher has assigned a project in which we are required to build a bridge out of popsicle sticksAlthough it is a project, it is also a competitionHe is supplying 40 popsicle sticks and elmers glue(which are the only materials we are allowed to use.)The bridge has to be at least one foot longOur bridges have to have a whole in the middle due to the machine we are using to test the strength of the bridge so it would probably be best if the bridge was somewhat stronger in the middleAnyone know any good, strong designs?! Please heelppp!

Answer:

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Mrs A: .the U.SEnvironmental Protection Agency (EPA) classified formaldehyde as a probable human carcinogen under conditions of UNUSUALLY HIGH or PROLONGUED exposureThat seems to be the themeNot really comparable to the miniscule amounts found in vaccines.that is, not comparable to anyone rational.
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There are many designs on the webA good simple dstructure is an inverted V with vertical members just far apart for the weight machine to fit in, and a horizontal bar just above the hole Members in compression (on the top) have to be fat, or box structuresMembers in tension do not have to be so fat, but watch the glue contact areaThere are fancier designs, but the A structure is a good start.

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