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July 24th, 2010
Liquid armor has been shown to stop bullets more effectively than plain Kevlar, according to British firm BAE Systems. The material could be used to make thinner, lighter armor for military personnel and police officers, the BBC reports.
Materials scientists combined a shear-thickening liquid with traditional Kevlar to make a bulletproof material that absorbs the force of a bullet strike by becoming thicker and stickier.
Its molecules lock together more tightly when it is struck, the scientists explained -- they described it as "bulletproof custard," the BBC reports.
Shear-thickening liquids are composed of hard nanoparticles suspended in a liquid, which turns rigid after being struck with a bullet or shrapnel. BAE says their tests provide the first clear evidence that it can actually protect people.
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