How does the wind organ in this youtube video work?

AI Thread Summary
The wind organ's sound production is based on the principle that the frequency of the notes is determined by the harmonics, represented by the integer values of n in the equation f=nv/2L. The velocity of sound remains constant, but the changing air flow affects the harmonics produced. As the air speed varies, it alters the integer values of n, resulting in different musical notes. This relationship explains how the organ generates a range of sounds. Understanding these principles is key to grasping the mechanics behind the wind organ's operation.
theBEAST
Messages
361
Reaction score
0
http://www.youtube.com/watch?v=AuYFcjBmMJ0&feature=relmfu

at time 34:35. He says it depends on how fast the air is flowing by? So does that mean the velocity of sound in the equation f=nv/2L change? How are the different sounds produced?
 
Last edited:
Physics news on Phys.org
It's not the velocity of sound that's changing, its n that is changing in the equation f=nv/2L. The different notes are different harmonics, corresponding to different integer values of n.
 
The rope is tied into the person (the load of 200 pounds) and the rope goes up from the person to a fixed pulley and back down to his hands. He hauls the rope to suspend himself in the air. What is the mechanical advantage of the system? The person will indeed only have to lift half of his body weight (roughly 100 pounds) because he now lessened the load by that same amount. This APPEARS to be a 2:1 because he can hold himself with half the force, but my question is: is that mechanical...
Some physics textbook writer told me that Newton's first law applies only on bodies that feel no interactions at all. He said that if a body is on rest or moves in constant velocity, there is no external force acting on it. But I have heard another form of the law that says the net force acting on a body must be zero. This means there is interactions involved after all. So which one is correct?
Thread 'Beam on an inclined plane'
Hello! I have a question regarding a beam on an inclined plane. I was considering a beam resting on two supports attached to an inclined plane. I was almost sure that the lower support must be more loaded. My imagination about this problem is shown in the picture below. Here is how I wrote the condition of equilibrium forces: $$ \begin{cases} F_{g\parallel}=F_{t1}+F_{t2}, \\ F_{g\perp}=F_{r1}+F_{r2} \end{cases}. $$ On the other hand...
Back
Top