Examples of resonance of sound in tubes

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The discussion focuses on a lab experiment demonstrating the resonance of air columns using a tube filled with water and a tuning fork. Participants observed that sound loudness increased sharply at specific tube lengths, highlighting the principle of resonance. Real-life applications of this phenomenon include musical instruments like flutes and trumpets, which rely on tube resonance for sound production. Additionally, guitar amplifiers and organs utilize similar principles in their design. The conversation emphasizes the widespread presence of sound resonance in various musical and audio devices.
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Hello :)
We did a lab in class and the lab was about resonance of air columns. We used a tube and filled it with water. Then we held a tuning fork above the tube to see at which points the resonance occurs. If a vibrating fork is held over the open end of the column, the loudness of the sound will increase very sharply at specific lengths of the tube. Now the problem is I have to come up with a real-life application of resonace of sound in tubes, and I can't seem to think of an example. Help me!
 
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You can't think of any example of applications of resonance in tubes? Just about any musical instrument that consists of mainly a tube (flute, trumpet, marimba (if it has these tubes hanging underneath) etc..) uses exactly this principle.
Also I believe amplifiers (for example a guitar amplifier) use tubes like this.
 
Thanks
 
The organ is a classic example.
 

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