We make oobleck in our material science class at Princeton, and I show the liquid body armor video that we show in our summer camp.
It's neat and all, but invariably students ask if the oobleck - the cornstarch and water mixture - could actually stop a bullet. Admittedly, this video doesn't answer that specific question, but it does try to make a non-Newtonian fluid that would work to stop bullets as part of a larger project of trying to make a real-life John Wick bullet-proof, black suit.
In this video they try using opal nanoparticles in polyethylene glycol (PEG) as the non-Newtonian fluid soaked into the layers of kevlar. Wait, opals are just silica nanoparticles. So, I think this is the same silica particles in PEG as the liquid body armor video.
Circles, man, everything comes full circle.
No comments:
Post a Comment