The shatter proof film does increase the glass's resistance to being broken, and when it does get broken, the pieces are stuck together and don't collapse into sharp fragments. It in no way means the glass is unbreakable though, a strong enough force can make a hole. It certainly could not stop a bullet, which would punch right through it.
A bullet travels at really high velocity and therefore the glass does not have enough time to bend due to the force and shatter instead the bullet just damages the area it gets in contact with and thus making a hole in the glass. Whereas a stone travels at a low velocity and the glass has enough time to bend and shatter
Yes, if a firecracker is ignited inside a glass bottle, the rapid expansion of gases produced by the explosion can build up pressure within the bottle, causing it to shatter. It is extremely dangerous to experiment with firecrackers in this manner and should not be attempted.
It would be possible for a .22 bullet to brake the first pane and not damage the second. I would expect to find signs of a bullet hole in the broken pane. But it depends on the temper of the glass. High tempered glass will shatter. You usually find these in sliding doors. I knicked one and it cracked over the entire door. WIthin the hour it was a heap of broken glass on the floor. It is possible.
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.
Yes, glass can shatter from exposure to high temperatures. When glass is heated, it expands, and if the temperature difference is too extreme or if there are imperfections in the glass, it can cause the glass to break or shatter.
The loud noise from the crash caused the glass to shatter into a million pieces.
Glass is usually made shatter proof in order too prevent long sharp pieces of glass injuring people. This is done by either applying a clear sheet of plastic too the glass, or the glass sheet is heated till just below the softening point and then cold air is blasted onto the glass, this way when the glass breaks into small chunks which would explain why in some cases the bullet only punctured a hole instead of shattering the whole sheet of glass.
The ability of a singer to shatter a glass is a result of the control that they have in frequency. These singers can control high frequencies well enough to focus them to shatter the glass.
Bulletproof glass was invented by French chemist Edouard Benedictus in 1909. Benedictus accidentally discovered the technology when he noticed that a glass flask coated with plastic layers did not shatter when dropped.
The sound waves produced by the vocal chords contain energy and this energy is transmitted though the air to the glass, sound waves are pressure waves. The glass vibrates in resonance with the pressure variations and energy builds up in it to the point where it can shatter.
Sometimes a glass is tuned to a certain frequency or note. If a person hits that note, the glass will shatter.
If you drop the glass, it will shatter. The mirror was going to shatter when it hit the floor after falling from the table.