We ’re used to thinking of things as either / or - – especially when those things are pane of bulletproof glass and we ’re sitting behind them . How do masses make chalk that can stop a heater one means , but lease bullets fly through them another direction ? We ’ll take a look at the purgative of watertight glassful .
It ’s born to think of watertight “ glass ” as a substance that is strong enough to block bullets , even though it ’s clear . When we think of it that way , it ’s unimaginable to see how it could possibly jam bullets going one way , but let them fly going the other way .
The mystery to figuring out how one - way bulletproof glass work is to understand that the hummer are n’t stopped due to the stuff used , but due to the way the way those fabric are structure . Ordinary bulletproof shabu is polycarbonate thermoplastic ( a very voiceless substance ) layered between regular glass . The thick glass and the hard substance together block up the movement of the bullets . And they intercept bullet from either direction .
One - path bulletproof methamphetamine has that surd substance as well , but it has it on the outside of the glass . There is a softer , flexible sum on the other side . When a bullet train is discharge at the outside of the glassful , the hard layer slows the hummer down so suddenly that the bullet itself in reality flattens a bite . This makes it both slower and wider when it gets to the delicate bed . This layer drags at it , pulling it to a period . When a smoke is discharge from inside the glass , it ’s minute and tight enough that it can wing through the flexible layer . The flexible bed moves enough that it puts stress on the brittle , punishing outer layer and cracks it , let the bullet to more easy thrust that as well . Because of the structural difference , a heater can vanish out , but ca n’t take flight in . Let ’s hear it for technology .
Image : USMC
ViaArmored Glass , Diplomatic Security , andTSS Bullet Proof .
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