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While there are a few ways to think about what sound is, for our purposes we will think of it as the rapid back and forth movement of a group of air molecules.
What is happening in the case of the window is that the flow of air hitting an edge on the window is unstable.
As you can imagine the fluid mechanics involved is quite complicated and quite frankly beyond me.
However, the principle is the same as when you generate a sound by blowing on the top edge of an empty bottle. In that case what is happening is that part of the stream of air is quickly flipping back and forth between going over the lip of the bottle and going into the bottle. When it starts going over the lip of the bottle, forces are created the causes it to start going into the bottle. However when it starts going into the bottle, there are forces that are created that cause it to start going over the lip of the bottle. This happens over and over again very quickly. The forces that pull the air stream back and forth are called "negative feedback" forces.
All wind instruments use the combination of air flow and negative feedback to generate their sounds.
How quickly the flow moves back and forth depends on the dimensions of the cavity, the size of the column of air hitting the edge and the speed of the air flow.
What else can I help you with?
How much heat is lost through an open window?
The amount of heat lost through an open window depends on factors like the temperature difference between inside and outside, the size of the window, the duration it's left open, and insulation quality. In general, significant heat loss can occur through an open window, increasing heating costs and making the indoor environment less comfortable.
What sound signal when you are about to bend in a narrow channel?
A short blast on the whistle to indicate intention to alter course to starboard (right) or two short blasts to alter course to port (left). This is commonly used by vessels when navigating in a narrow channel to communicate their intentions to other vessels in the vicinity.
How much do lungs weigh?
The weight of adult human lungs typically ranges from about 0.8-1.3 kilograms (1.76-2.87 pounds), with the right lung being slightly heavier than the left lung.
How much does a empty 25 pound r410 bottle weight?
An empty 25-pound R410 bottle typically weighs around 16-18 pounds. The weight can vary slightly based on the material of the bottle and any residual gas left inside.
How do steam trains work?
Steam trains relay on three major factors: coal( or anything that burns), fire and water.The coal, from the tender, keeps the fire burning or you could use a wood or a gas such as propane. The water gets heated by the fire like a pot of water on the stove. Them, the extra steam gets stored into a dome while the rest rushes down the boiler to the pistons. The pistons are what makes the wheels go round and round. There are two sets of pistons on each side and when the steam goes back and forth, you get a hissing sound. The left over steam is sent up the smoke stack. The throttle applies pressure to the steam which gives you the chuffing sound from the stack. From the stored steam in the dome, its used to make the whistle sound. The whistle is shaped to make a specific sound when applied pressure to, thus, the loud whistle sound. You tell this if you see steam comming out of the whistle. If you have anymore questions, go to my website. kimvrr.webs.com
What are baseball player Windy McCall's physical stats?
Windy McCall is 6 feet tall. He weighs 180 pounds. He bats left and throws left.
To prevent a window from exploding outward during a strong windstorm it is left slightly open. What keeps the window from exploding?
Leaving a window slightly open during a strong windstorm helps equalize the pressure inside and outside the building. When the pressure inside is lower than the pressure outside, it can cause the window to be pushed outward. By allowing some airflow, the pressure difference is reduced, preventing the window from potentially exploding outward due to the force of the wind.
How long did Armstrong stay in the Windy City after he left New York?
10 minutes
How do you whistle on saints row 1 to get her?
when choosing character taunts and compliments add whistle as compliment , i think you press the directional button left for a taunt and right for a compliment .
What shows on the left side of a window shows the folder structure on your computer?
The _____ on the left side of a window shows the folder structure on your comput
Call of duty5 Which window is sergeantReznov near left or right?
left
What is the hand signal for a left turn?
stick your left arm out of the window
What type of print was left on the car window in the movie titanic?
what print was left on the cAR in the boat in titanic ?
Where do you find the heart in your body?
in your chest slightly over to the left, very slightly.
What is the hand signal for left hand turns?
stick your left arm out of the window
How do you open a new window on a computer?
File on the top left corner, and open new window.
2 birds flew into your bedroom window what could it mean?
It means you left the window open
