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The ballistic sound wave formed when the sound barrier is broken by a bullet in motion is what distinguishes gunshots from other sounds. Our Acoustic Threat Detection (ATD) technology monitors the acoustic signatures of the sound waves in the environment where it is utilized. In fact, the sound barrier has been broken using surprising objects like ping pong balls! Between aircrafts and guns, this is a regular phenomenon. While guns have been breaking the sound barrier for ages, the world learned people could break it too on Octowhen pilot Chuck Yeager broke the sound barrier in his aircraft lovingly named “Glamorous Glennis.” Breaking the sound barrier does not cause harm to the object or person passing through it despite the powerful sound. Bullets moving at supersonic speeds trigger particularly jarring sounds because of the sonic boom they cause.Īircraft Breaking the Sound Barrier Source: Boom Supersonic This wave triggers a sonic boom which is the explosive sound heard as the object passes through the barrier. supersonic) and thus breaks the sound barrier, those waves spread rapidly to create an elongated cone of shock waves that trail behind the object. When an object such as the aircraft visualized below moves faster than the speed of sound (i.e. Supersonic – Traveling faster than the speed of sound (1100 fps + at sea level).Transonic – Approaching the speed of sound (900-1100 fps at sea level).Subsonic – Slower than the speed of sound (under 900 fps at sea level).The speed of a standard bullet can be broken down into three categories: Their speed is influenced by multiple factors including the size of the gun and bullet type.
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Essentially, the speed of sound becomes faster the higher the temperature goes.īullets have the ability to travel up to twice the speed of sound. Keep in mind that the speed of sound becomes slower at higher altitudes due to air molecules moving at a slower rate as temperatures lower. Temperature and air density influence the speed of sound waves, but they move at 1125 fps assuming an average temperature of 68° fahrenheit. Sound is caused by vibrations that travel in the form of waves (i.e. Traveling at the speed of sound might sound like an abstract concept, but the key to breaking the sound barrier is found in the relationship between sound and speed. Rather, it is the hypothetical limit to the speed an object can travel before it exceeds the speed of sound. Contrary to what the name might suggest, the sound barrier is not an actual wall or barrier. In fact, bullets can move fast enough to break the sound barrier. The speed of sound is fast, but bullets move faster.