Bulletproof History

History

The Bulletproof concept was originally made in 1640. Prince Rupert was the first to have

an idea that this could be done. He made a prototype by dropping molten glass into freezing

water, although it was not bulletproof. It sparked the idea for Bulletproof Glass. In 1903 a French

chemist Edouard Benedictus accidentally dropped one of his flasks on the ground even though

the glass broke it did not shatter. He later found out it did not shatter due to the element that was

held in it which was liquid nitrate solution. In 1909 Benedictus successfully filled a patent in

France for his glass. In 1914 Benedictus moved to The United States of America and secured a

patent for the Glass he created. In World War One in the Gas mask's
An ordinary piece of glass shatters when struck by a single bullet.

Bullet resistant glass is designed to withstand one or several rounds of bullets depending on the

thickness of the glass and the weapon being fired at it. So, what gives bullet-resistant glass the

ability to stop bullets? It works by a two layers of glass separated by a vinyl acetal sheet then

covered in Polycarbonate. (John Shriner, 2014)

“When a bullet strikes bulletproof glass, its energy spreads out sideways through the

layers. Because the energy is divided between a number of different pieces of glass and plastic,

and spread over a large area, it is quickly absorbed. The bullet slows down so much that it no

longer has enough energy to pierce through—or to do much damage if it does so. Although the

glass panes do break, the plastic layers stop them flying apart. Think of bulletproof glass as

"energy-absorbing" glass and you'll have a good idea how it works.” (Bulletproof glass, 2016)

“In terms of thickness, bullet proof glass is usually 70 to75 millimeters thick. The
Bulletproof windows are designed to stop projectiles but should be

said that they are not made for continuous projectiles. The windows can handle many rounds of

fire but after a little you be experiencing holes through glass then you will know that the glass

has been penetrated and should be fixed. In the movies when you see someone's shooting the

windows of a car with bulletproof glass you see the bullets leave a dent in the window, that is a

100% wrong in real life when a bullet hits bulletproof glass the window will make a loud noise

and normally the bullet will be lodged inside the window almost all times the bullet hits the

window. Bulletproof glass is continuously reminded and should be told that it is a breakable

object it just takes continuous fire to break. When a round hits the window the outer layer of