One of the more impressive applications of shear-thickening fluids is as a additive to body armor. A collaboration between the University of Delaware and the U.S. Army Research Laboratory has improved the protective properties of Kevlar. The home page is
here, and pictures and video are
here.
We studied this in fluid dynamics class about 3 years ago. Prof. showed this video that was amazing. http://www.youtube.com/watch?v=qfhw6I_uBQg
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