Saturday, July 28, 2012

Bullet Proof Glass

How is bullet proof glass made?

Bullet proof glass is a sandwich made up of transparent plastic between two layers of ordinary glass. The first sheet of glass shatters when ills hit, dissipating much of the bullet's energy. The remaining momentum is caught by the plastic layer, which distorts but leaves the other glass sheet intact. The material is further strengthened through a process of heating and cooling called tempering.
Bullet Proof Glass