Why is a Sonic Boom so loud and what exactly happens when something breaks the sound barrier?
This video will show you what sound is and how it changes the air pressure. What happens when a sound source doesn't move? What happens when the sound source moves? What when it moves with the speed of sound and what when it moves faster then sound? The video will provide a simple explanation of the Doppler effect, graphically and with animations.
It will also show you what exactly a sonic boom is? Does a sonic boom just happens when something breaks the sound barrier? Why and how are shock waves form by super sonic flights? Why do we hear two boom by supersonic aircrafts? What is a N Wave and what are typical pressure values for a n wave also the value of the strongest ever recorded n wave pressure difference.
It is also explained why is it so hard to break the sound barrier and fly with a higher speed then the speed of sound. What techniques supersonic aircrafts use to reduce the air drag(like supercritical airfoil, area rule and shapes with low air resistance ). How the drag coefficient changes with the mach number and what the drag divergence mach number is. What is a critical mach number and what is a transonic speed.
We will talk about the difference between supersonic and subsonic aerodynamics and the difference between jet engines and propeller engines. You will also see what difficulties early propeller aircrafts had when they came close to the speed of sound.
You will see why vapor cones form around supersonic planes and fighter jets and does vapor cones show that they fly super sonic?
The video also shows what is the first man made tool that broke the sound barrier and how some dinosaurs might break the sound barrier.
=====Timestamps=====
0:00 Loud Sonic Boom
0:09 What is sound
0:20 Doppler effect explained
0:58 Sonic boom and shock wave formation
2:21 Does the sonic boom just happens in the moment when something breaks the sound barrier?
2:55 Why is it so hard to break the sound barrier?
4:37 Vapor cone formation explained
5:01 Firs tool to break the sound barrier
5:19 Dinosaurs breaking the sound barrier
5:31 Headphones and music are much more dangerous
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