Sounds crazy, but this liquid body armor is more bulletproof than Kevlar
Have you ever played with that weird goop (sometimes called “oobleck”) that you can make by mixing water and corn starch together in the proper proportions? You know; that stuff that’ll ooze through your fingers if you hold it in your hand, but feels hard as a rock when you try to squeeze or punch it? Well believe it or not, a Polish company by the name of Moratex has developed a new type of bulletproof vest that uses almost the exact same technology.
Rather than being filled with a rigid substance like Kevlar, this vest is filled with a special type of non-Newtonian fluid that Moratex is simply calling Shear-Thickening Fluid (STF). Think of this stuff as a souped-up, chemically perfected version of oobleck. When a force is applied to it, it causes the liquid’s viscosity to increase. The more force you apply, the more viscous the material becomes — so when it’s struck with a high-velocity projectile (like a bullet), the fluid becomes incredibly hard almost instantaneously.
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