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Gunshots are the sound made by firing a firearm and the sound is often considered loud. This noise is caused by the release of high-pressure air behind the bullet. Bullets also travel at very high speeds, exceeding the speed of sound, which can cause concussions. Read this article to learn more about the sound that guns make.
Bullets travel at speeds exceeding the speed of sound
Bullets, including the ones fired by guns, can reach speeds above the speed of sound. An example is the M16 gun, which shoots bullets at speeds of over 4,000 fps. Bullets traveling at speeds above the speed of sound create a sonic boom that can be heard on the ground. Although bullets do not kill instantly, they can disable a person or damage a vital organ in the CNS.
Bullets travel at speeds higher than sound by generating shock waves that cause the bullet to ‘crack’. You can see the shock waves in action in the video below. The bullet’s tip creates a whirring sound similar to a whip. However, a bullet traveling at speed greater than the speed of sound has a higher resonant frequency than a whip’s.
High-pressure air is released behind the bullet
When a bullet enters a gun barrel, it encounters tremendous pressure in the back. As the bullet exits the barrel, this pressure is released. This is similar to the way a champagne bottle pops when it is uncorked. The difference is that there is less pressure involved and the bullet has lower velocity.
A typical bullet contains three parts: the bullet, the primer, and the propellant. These three parts are loaded into a rifle. The metal firing pin is then pushed into the back end of the bullet by a spring mechanism. The spring ignites a small explosive charge in the primer, which then ignites the propellant. The propellant takes up about two thirds of the bullet’s volume.
Paintball guns produce a bang-like noise
When you fire paintballs, they often make a bang-like noise. While this noise is not always the result of a malfunction, it can be an indication of a problem. The reason behind this is often as simple as the quality of the paintballs. If the paintball is too fragile, it won’t survive the force that pushes it down the barrel. Some entry-level paintball markers are also prone to barrel breaks. Also, cheaper guns typically have a rougher action than more expensive models. The paintballs are also more likely to be damaged by open paint bags, which absorb moisture and add elasticity to the paintball shell.
Some paintball guns are very light and portable while others weigh up to two pounds on their own. Although most people consider paintball guns to be harmless, there is still some controversy surrounding their use. Because they are considered firearms, paintball guns may be illegal and carry other legal ramifications. The best way to avoid a legal issue is to choose less lethal ammo that won’t leave a hole in a target’s body. This is often in the form of a tear gas-filled paintball or a beanbag round.
Bullets can cause concussions
Concussions are injuries to the brain that temporarily affect normal brain function. They are caused by physical trauma or an abrupt acceleration-deceleration of the head. These injuries can be the result of motor vehicle crashes, explosions, or even a fall. While some victims of concussions lose consciousness, many of them do not. Bullet wounds or other injuries to the head may not cause a concussion, but they can amplify an already-existing injury.
To investigate the impact of a bullet on the brain, researchers developed a high-precision human brain biomechanical model (BHBT). The BHBT model is able to account for the biomechanical response of the brain under different impact conditions. The BHBT model is sensitive to impact position and velocity.
Hearing protection reduces the sound of a gunshot
Whether you’re in a public or private environment, hearing protection reduces the sound of gunshots. Gunshots emit a high-intensity burst of sound known as concussive energy that rattles the eardrum, inner ear bones, and cochlea, the fluid-filled organ that converts sound into electrical impulses for the brain. Over time, prolonged exposure to loud sounds can lead to permanent hearing loss. This is why it’s important to use hearing protection whenever possible.
Typically, hearing protection reduces the sound of gunshots by 20 to 30 decibels. In order to reduce the sound of gunfire to that level, ear plugs and earmuffs must be rated NRRs of 22 or higher. A low NRR doesn’t necessarily mean a high-quality product will do a good job protecting your ears. But a high NRR will help keep your hearing from getting damaged over time.