Sound waves are like wavering waves that radiate around the object. A subsonic speed plane passes behind the sound that it emits. When the aircraft reaches the exact speed of the sound, the sound produced by the manufacturer is accompanied by it. This can be very dangerous. Why? Because while traveling at the speed of the sound, the loudspeaker is constantly accumulating. As new tones are made, the aircraft will fly with these new tones – and so on. Finally, the racket breaks the plane!
For this reason, aircraft are interrupted with the loudspeaker . They are driving at a few seconds and then speed up quickly until they pass and leave the sound behind the sound. In the meantime, anyone can hear the sound when sound waves radiate to the ground.
Light moves much faster than sound and never built a machine that is approaching the light speed. In theory, it is impossible to attain this speed by infinite energy (or with limited energy in an infinite time). If the laws of physics were broken and the speed of light reached or exceeded, the momentum would be forever eternal.
The difference between light velocity and sound waves can be demonstrated by observing a large cannon. If you use a huge telescope to observe gun fire at half a mile (for example), you will really hear a blast of one second after you see it being exposed. A common example is the gap between light strike and thunder. We all know that the difference between the two times means the distance of the thunderstorm from the observer. The final example is one of our killer machines. If Insectocutor IND41 could be fired by a movie theater and microphone at one end of a large hall for an unlucky fly, slow motion would show a distinct gap between the flash as the insect lightning and the fizzing sound that
You hear an approaching aircraft that is moving faster than the sound. Only after you have passed will you hear something. Fortunately for us the wasps and flies are not so fast!
Source by Vernon Stent