Tagged Questions
2
votes
3answers
139 views
Frequency of a Tuning Fork
Question: Which of the following affect the frequency of a tuning fork?
Tine stiffness
Tine length
The force with which it's struck
Density of the surrounding air
Temperature of the surrounding air
...
1
vote
1answer
271 views
How would natural (resonant) frequencies affect amplitudes?
I read $y=A\sin(2\pi ft)$, where $A$=Amplitude, $f$=Frequency, $t$=Time and $y$=$Y$ position of the wave.
Since natural frequencies only take the most effect when they are close to the frequency.
How ...
2
votes
1answer
67 views
What is the name for the whistling “musical” sounds that change stepwise in pitch when a hollow tube is spun like a lasso?
You have likely heard those sounds, science museums sometimes sell Flexible plastic tubes you can whirl like a lasso. The air rushing by the end of the tube causes these sounds, which are admitted in ...
0
votes
1answer
490 views
Science behind the singing wine glass
A wine glass filled with water (approximately half or a quarter), when you use a wet finger and rub the top of the wine glass, the wine glass will produce a sound. I heard that it is because of the ...
0
votes
2answers
96 views
Sound “exploding” in car's window at certain speed [duplicate]
Possible Duplicate:
Why, when one opens 1 car window, does that noise occur?
My knowledge in this area is really out-of-dated and stopped somewhere like ten years ago. So I would like to ...
1
vote
1answer
273 views
Resonance and Natural Vibrations in Vacuum
In my Physics textbook, it says that if two pendulums of the same natural frequency are placed next to each other and if one is set into vibration, the other starts resonating and when the first one ...
5
votes
2answers
146 views
How can I use sound/resonance to clean sewers?
This probably doesn't fit into the realm of regular questions ; it is more of an applied rather than theory/math question ...
Anyway, I'm curious whether a metre diameter speaker fitted over a ...
3
votes
1answer
765 views
Is it possible to break bulletproof glass with your voice?
In The Adventures of Tintin, an opera singer (the Milanese Nightingale) broke a bulletproof glass case using her voice. Is that scientifically possible?
From the Wikipedia page, a typical bulletproof ...
2
votes
2answers
161 views
Drum head coupled with an RLC circuit
I'm thinking about the possibility of an electroacoustic drum that would be tuned with some kind of RLC circuit.
The drum head would have an electromagnet attached to its center, which would be ...
2
votes
1answer
382 views
Can sound be used to purify/filter water?
I remember reading about all chicken at a poultry farm being violently sick/dying for apparently no reason. It turned out the culprit was machinery at a nearby factory that emitted sound at a ...
1
vote
1answer
256 views
Singing: Resonance body open-closed or closed-closed?
Googling yields contradictory results, so here my question:
When I sing, my vocal chords vibrate, but my whole body is the resonance body, right? So I would say that when I think about standing waves ...
3
votes
1answer
146 views
Free/open source tools for calculating normal modes, failing that, advice
Are there any open source tools for calculating the normal modes of arbitrary objects? Input would be some 3D design format and material properties, output would be movement direction and magnitude ...
