Air Force cadet invents bullet proof goo
Sludgy liquid substances have never been the obvious choice for making bullet proof material, but a cadet in the US Air Force has invented a goo that can stop even a .44 Magnum bullet. Back in 2014, Cadet 1st Class Hayley Weir was in a class where the students were given three materials to make a shield – epoxy, kevlar and carbon fibre, but Weir changed the mixture, replacing the epoxy with a shear thickening fluid. And three years since that class, a material capable of stopping bullets is close to being finished.
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