All Questions
9
questions
2
votes
2
answers
109
views
Why is there sound aboard Concorde after it goes supersonic?
I recently saw a video from a passenger of Concorde after it goes supersonic. Inside the aircraft, there is still a loud roar similar to what we hear in aircraft today.
However, since the aircraft is ...
- 205
0
votes
1
answer
66
views
What is responsible for an airplane's sound?
Airplanes traveling at supersonic speeds produce sonic booms because the pressure waves they create converge to produce an extra high intensity wave. But what about planes traveling at slower speeds? ...
0
votes
2
answers
231
views
How are shockwaves created if no particle goes around the wings at supersonic speed?
so,the title could be a bit misleading, let me elaborate: whenever studying aerodynamics, the explanation starts with considering the wing of a plane still, and the flow of air arriving from either ...
- 9
-2
votes
2
answers
75
views
How much at least should the Earth be smaller so that we notice these three phenomenons?
The Earth is moving with a speed of about $1670$ $km/h$ around its axis. This speed is more than the sound speed. So the Earth is always breaking the speed of the sound. How much at least should the ...
- 402
20
votes
4
answers
6k
views
Why do jet engines sound louder on the ground than inside the aircraft?
Everyone is familiar with the whirring sound of jet engines when seeing an aircraft taking off from a nearby airport. It is distinctly very loud on the ground and one can hear it even when the ...
- 321
3
votes
1
answer
432
views
Why is it a sonic "boom" and not a sonic "boooooooooooooooo...m"?
As I understand it, when an object pushes past the sound barrier, a sonic boom doesn't happen just once, but rather, continually (correct me if I'm wrong). So why is it that there seems to be only a ...
- 203
5
votes
2
answers
139
views
Do planes have to be noisy?
I tend to think of noise as an undesirable waste of energy because the generator was not designed for that purpose. But that doesnt mean this waste can be avoided.
So I wonder how much of this noise ...
- 3,236
15
votes
4
answers
1k
views
Can you "rewind" sound messages by going supersonic? [duplicate]
I was having a discussion with a friend about supersonic flights.
It was then when he proposed an idea on an interesting experiment that can be done during a supersonic flight.
The experiment goes ...
- 12.5k
3
votes
2
answers
2k
views
Speed of sound and Break the sound barrier [duplicate]
What happens when plane exceeds the speed of sound? and What is the interpretation of the conical shape that appears behind the plane?
- 842