some improvments made were that they were able to make very light compared to what it was befor, and they made it to be able to fix it on cars\
Becasue the glass either let the bullets through after multiple hits; or the glass shatterd on the other side causing injury to the person it is protecting.
The Scientific name for Bullet Proof Glass is Bullet Resistant Glass. It is referred to as Bullet Resistant Glass in the Industry as there is no such glass that can stop every bullet. A series of bullets that hit within a small area of the Bullet Resistant Glass will eventually project right through the glass.
Bullet Proof Glass (usually 2-4 inches), Hard Metals (usually1-3 inch) And Other Bullet Proof Materials.
Pyrex is the trade name of a Corning low thermal expansion glass. All Pyrex is glass, not all glass is Pyrex.
Bullet proof glass is made by laminating very strong layers of plastic film between layers of glass. This is done under very high pressure.
It is usually made from a combination of two or more types of glass, one hard and one soft. The softer layer makes the glass more elastic, so it can flex instead of shatter. Bullet-resistant glass is usually constructed using polycarbonate,thermoplastic, and layers of laminated glass.
the futher improvements that will be made to the ipod could be water proof and no headphones needed
Kevlar fabric
Bullet proof vests are made from many layers of woven,laminated fibers ,metal and ceramic plates.
A bullet resistant glass screen is made of a number of glass sheets which can be standard thicknesses window glass, separated by air gaps. Security films, preferably made of polyester, are provided on the front and rear surfaces of the glass sheets. A pressure sensitive adhesive can be used to adhere the security films to the glass sheets. The resistance off the screen to penetration by a bullet is increased by increasing the thickness of the air gaps. There is also a metal net on both sides of each glass pane to stop it shattering if a bullet hits it.
No, the Phoenicians got the idea of glass making from the Egyptians but the Egyptians glass was cloudy. After that that the Phoenicians made improvements to the glass and made it clear.
Kevlar is one of the best and well known bullet proof materials. it was originally made to be a material to make a tire but when they made it it was stronger than they thought it would be.