Hello, thank you very much for this video. I'm a physics teacher and I'll show the vidéo to my students tomorow. It answers a question I had. There is a resonance for L = lambda/2 and L = 3/4 lambda. In the second case, the tube is still close by the speaker but I works. It means that there is a minimum of pressure on the side of the speaker.
@emieldeb The reason the styrofoam pieces form a series of walls rather than simple humps has to do with the way the air in the tube moves around those pieces...Vortices form around each piece, and the most stable places for another piece are either in the same plane as the first, or a certain distance away. Google 'Kundt's Tube Striations' since I couldn't post the article link...
@xhpleon Foam goes flying when music is played because the motion of the air is chaotic, with no standing wave dominating over the long term...E. N. da C. Andrade was the one who discovered this idea of the ridges being formed by vortices. The paper is “On the Groupings and General Behaviour of Solid Particles under the Influence of Air Vibrations in Tubes”
@xhpleon First of all, pressure nodes are not displacement nodes...they are displacement antinodes. Second, at the pressure nodes the pressure is atmospheric, not zero, and the pressure at the pressure antinodes gets both higher and lower than at the nodes. Besides, if the location of the foam was a simple matter of getting sucked in, then there is no good reason for the small ridges that make up the overall trend. The foam location depends on the movement of the air, not the pressure.
@@rowanstephen566 [Intro] Ah, ah, ah, ah Ah, ah, ah I just wanna rock Body-ody, yeah (Shake it down) [Chorus] Damn Damn (MC, make another hit) Woah This ain't what you want (Project-Project X) This ain’t what you want This ain't what you want [Verse] Ha, 1600 block, I just wanna rock (Shake it down) I just wanna, ah, ah, ah, ah, ah, ah, ah I just wanna rock, body-ody, yeah (Shake it down) Shawty got that body-ody, ah, ah, ah (Shake it down) Hit it once, no ties (Shake it-shake it) How the fuck you gon' kill my vibe? (Shake it down) Stand on my money, don’t know my size (Shake it-shake it) Pick them sides, and you better choose wisely (Shake it-shake it down-down) That's my high, one, two, three, four, throw up the five (Shake it-shake it) That's my high [Chorus] Damn Damn (One, two, three, four, throw up the five) (MC, make another hit) Woah This ain't what you want (Project-Project X) This ain't what you want This ain't what you want [Outro] Buh, buh, buh, buh (Down, down) Buh, buh, buh, buh (Down, down) Buh, buh, buh, buh (Down, down) Buh, buh, buh, buh (Down, shake it down) Buh, buh, buh, buh (Down, down) Buh, buh, buh, buh (Down, down) Buh, buh, buh, buh (Down, down) Buh, buh, buh, damn (Down, shake it down) (Shake it down-down) (Shake it-shake it down-down) (Shake it down-down) (Shake it-shake it down-down) (Shake it down-down) (Shake it-shake it down-down) (Shake it down-down) (Shake it-shake it-shake it)
I like you very much! A sound experimenting lady with a charming smile, being a nerd of a sound designer myself, I'm enchanted! jehejejhe, go starwalker :)
This is an Interessengruppen point. I assume it is due to the movement of the speaker membrane which simulates the resonance condition of an open/closed tube. Of we consider the movement of the partiales close the smaller spacings, the movement of the membrane might have been at similar amplitudes.
Could you please explain what causes the smaller lines in the waves to form? I understand how the third harmonic forms 3 nodes for example, but what is controlling all the smaller barcode-like patterns?
Good question! I wonder the same thing I'm guessing it could be electrostatic forces arising from charging via friction... the nodes and antinodes are surely responsible for the larger trend. The fundamental wavelengths are much larger than the tiny displacement you are referring to, so I'll guess it is not due to them (nodes and antinodes)... even if they were from harmonic overtones, there would be evidence of larger gaps for various harmonics. I could be wrong :-/
That's because the velocity of the wave is constant, and only vary when you change the environment( v= lambda X frequency). So as the frequency goes up, the lambda gets smaller
It seems like you want to build your own tube. I built one myself and it’s quite easy. For the speaker: Since the the manufacturer’s informations are pretty much arbitrary, just use a speaker if a sufficient size (mine has a diameter if 13cm). It shouldn’t cost more than 20-30$. The length of the tube doesn’t matter much. If you use a different length, the frequencies with which you can generate the figures in the styrofoam will differ from what you see in the video. I‘d recommend a tube length of 1m-1.5m. But you will need a decent frequency generator with a strong enough output. If you use your cell phone and an amplifier, you will grill your speaker. I don’t know why, but I’m guessing it has something to do with blind currents.
Sir i tried making this using a flourescent tube .cutting both edges removing mercury. Placed a piston at one end and a speaker at other. Applied every audible frequency from hz to kh but the beads wouldn't move. What might be the reason ? Kundts tube is my final year bsc physics project topic. How can I make these thermocol beads move and measure length between nodes and determine velocity of sound . Please help
@auburnisaak1 No, sorry...though it seems several people have done it with a related demo (Ruben's Tube), so it definitely could be interesting...If you do it, post it! It looks like it's one of the few things that youtube actually doesn't have!
Stepping up frequencies to the ultimate limit is only possible in imagination of the superimposed wave-particle positioning 1-0-infinity probability limit, which is the circumstance of the "Full Message" of holography. So the inside-outside presence of an e-Pi-i Apature distributed in absolute zero-infinity transverse trancendental sync-duration harmonic is at least comprehensible from this simple demonstration device.., when you think it through the due process expected of a Math-Physics Researcher. Because, raising the frequency of the tube is what is done in Accelerators like the LHC, which we all know has a limit of construction that ends in making a Black Hole, a Singularity wrapped up in zero-infinity frequency range vibration, or the ultimate Reciproction-recirculation positioning of holography that leads directly to the conclusion that the Universe is Holographic Principle Imagery projection-drawing in Black-body Superspin AM-FM Communication In-form-ation. If you can navigate your way to recognise Euler's e-Pi-i 1-0-infinity instantaneous trancendental, spin-spiral cross-sectional interference dimensionality, that is the Observable constant creation connection exemplified in the demonstration device shown. (By observation, the theory of the supposed Big Bang, [a half-truth picture extracted from Actuality], is unsubstantiated)
1:57 - that's not 179hz, sounds more like around 150ish. The others sounded off as well, but just so happen to know that 179hz is just slightly higher than the note "F", and yet the sound (coming out of my speakers at least) was closer t D#
I have an idea for a potential industrial use for this that could mitigate some significant environmental damages caused by the mining industry. If yur interested in testing the theory using your apparatus, here it is. If you do it, I'd like to know the results. Take a dry sample of black sand gold ore concentrates and place them in the tube. You can find "paydirt" online for less than $20. Play around with the frequencies and angle of the tube to see if you can get the gold particles to separate from the rest of the pile. Maybe oscillate freqs?? If you can accomplish this, you have a real winner....... just a matter of engineering a system from that point. That's what I do.
this tuve is liek the tube that went reallt tuby and went ui like drisfotopher robaldo suiii and then the things webt ul and down was was insane and jhe is the defenition of a jeffu an seth said cause that giu is tof and clueless
![Breaking the sound barrier [Jets Sonic Boom Compilation] ✔](http://i.ytimg.com/vi/6B4IVcCuIZE/mqdefault.jpg)
Me here..After rj sir class 😎
Us kritti and because rj sir ne kaha tha ki woh rarefraction aur compression ko dekhna hain
🤟
After RJ sir class
Mast abhi dekh ke hi aa ya hu class me
Same here bro...👍👍
Hello, thank you very much for this video. I'm a physics teacher and I'll show the vidéo to my students tomorow. It answers a question I had. There is a resonance for L = lambda/2 and L = 3/4 lambda. In the second case, the tube is still close by the speaker but I works. It means that there is a minimum of pressure on the side of the speaker.
This is so fascinating! I still can't grasp how these waves work but... Loved it! ❤️
If you speak German, this might help you to understand how kundt‘s tube works:
ruclips.net/video/p6AXNpXNKpg/видео.html
@@nochmalkurzerklart5753 sadly I can't but... nice, thanks!
Amazing and outstanding experiment 🧡..........I wanted to see closed open end resonance
My Physics sir Rajwant sir brought me here......... 😊
Jee nikla
From prayas 2.0 ✋️✋️
gg
Bhai jee nikla??
Ha bhai advanced to achha nahi hua but mains ka theek tha is time mai mnnit allahabad cse mein hoon..@@sam_infinity6223
Thanks for the video (10 years later :-) An idea for an improvement: Include a meter stick along the tube :-)
Your headphones are awesome
@emieldeb The reason the styrofoam pieces form a series of walls rather than simple humps has to do with the way the air in the tube moves around those pieces...Vortices form around each piece, and the most stable places for another piece are either in the same plane as the first, or a certain distance away.
Google 'Kundt's Tube Striations' since I couldn't post the article link...
well my physics teacher told they use talcum powder... does that work too?
But shouldn't the small peaks be the actual waves as the wavelength should be significantly small as compared to the larger waves
RJ sir se class leen ke baad ye video achhe se samjhe aai
Rajwant sir OP......
It was his class demonstration today in prayas jee
@@shri_shri_tripathi_jioh
actually whn i was in class 11th,sir told us there
but sadly only got 94%ile in first attempt in jee(didn't take drop)
Super useful video! With a little math I found the tube to be aprox. 1.38m long... how amazing is physics!
How did u calculate length of the heaps of styrofoam or lycopodium
I'm Mike Kundt, your long lost cousin!!! Nice to meet you.
@xhpleon Foam goes flying when music is played because the motion of the air is chaotic, with no standing wave dominating over the long term...E. N. da C. Andrade was the one who discovered this idea of the ridges being formed by vortices. The paper is “On the Groupings and General Behaviour of Solid Particles under the Influence of Air Vibrations in Tubes”
Seeing it after 9 yrs
Me too
@xhpleon First of all, pressure nodes are not displacement nodes...they are displacement antinodes. Second, at the pressure nodes the pressure is atmospheric, not zero, and the pressure at the pressure antinodes gets both higher and lower than at the nodes. Besides, if the location of the foam was a simple matter of getting sucked in, then there is no good reason for the small ridges that make up the overall trend. The foam location depends on the movement of the air, not the pressure.
Me here after rajwant sir class😎😎
Great work!! love the visualization and helped me learn a lot 👍
Love the enthusiasm
I totally agree with you! This is was Isaac Newton died for!
@@Benelocsta I was thinking more Albert Einstein type beat but I totally feel you!!
Watch this every night to help me fall asleep
@@rowanstephen566 [Intro]
Ah, ah, ah, ah
Ah, ah, ah
I just wanna rock
Body-ody, yeah (Shake it down)
[Chorus]
Damn
Damn
(MC, make another hit) Woah
This ain't what you want (Project-Project X)
This ain’t what you want
This ain't what you want
[Verse]
Ha, 1600 block, I just wanna rock (Shake it down)
I just wanna, ah, ah, ah, ah, ah, ah, ah
I just wanna rock, body-ody, yeah (Shake it down)
Shawty got that body-ody, ah, ah, ah (Shake it down)
Hit it once, no ties (Shake it-shake it)
How the fuck you gon' kill my vibe? (Shake it down)
Stand on my money, don’t know my size (Shake it-shake it)
Pick them sides, and you better choose wisely (Shake it-shake it down-down)
That's my high, one, two, three, four, throw up the five (Shake it-shake it)
That's my high
[Chorus]
Damn
Damn (One, two, three, four, throw up the five)
(MC, make another hit) Woah
This ain't what you want (Project-Project X)
This ain't what you want
This ain't what you want
[Outro]
Buh, buh, buh, buh (Down, down)
Buh, buh, buh, buh (Down, down)
Buh, buh, buh, buh (Down, down)
Buh, buh, buh, buh (Down, shake it down)
Buh, buh, buh, buh (Down, down)
Buh, buh, buh, buh (Down, down)
Buh, buh, buh, buh (Down, down)
Buh, buh, buh, damn (Down, shake it down)
(Shake it down-down)
(Shake it-shake it down-down)
(Shake it down-down)
(Shake it-shake it down-down)
(Shake it down-down)
(Shake it-shake it down-down)
(Shake it down-down)
(Shake it-shake it-shake it)
After prayas 2.0 ❤
Legal,quem dera aqui no Brasil,houvesse essas aulas experimentais
na minha facul tem
守りたいこの笑顔
🤧🤧 concept hi clear hogya dekh k
Dramatic performance! Great!
Wow...amazing experiment...
excellent!!!
That was very nice
Nice pw
Could you please tell me how long the pipe is? I guest it is 1.5 m long. Isn't it?
I like you very much! A sound experimenting lady with a charming smile, being a nerd of a sound designer myself, I'm enchanted! jehejejhe, go starwalker :)
It's amazing 😁
Dance of Lycopodium powder.
U saved your ears but i lost mine😂
Siema kto od prof. Gawrona?
Liam Neeson brought me here
lol me too
Yup me too
Me three!! awesome experiment.
not me
Kristinapedia me too 😅
Amazing !
Its amazing!
amazinggg
fucking awesome, this is a topic in our jee exam physics syllabus
yes
Ну наглядная демонстрация стоячих волн. Наконец то догадались. Теперь это же самое проверте на химических реакциях или с удержанием плазмы.
Wat is that sound making device called?
Hi. At 1:38, after you're set the frequency, what did you do to change the speaker's end from a closed end to an open end?
This is an Interessengruppen point. I assume it is due to the movement of the speaker membrane which simulates the resonance condition of an open/closed tube. Of we consider the movement of the partiales close the smaller spacings, the movement of the membrane might have been at similar amplitudes.
Does this tube have open ends at both ends for first two frequencies? That way ends behave like displacement anti nodes and pieces will fly off.
Hi is it possible to excite the radial and tangential modes, of the duct and see how the foam balls react to it?
Could you please explain what causes the smaller lines in the waves to form? I understand how the third harmonic forms 3 nodes for example, but what is controlling all the smaller barcode-like patterns?
nodes and anti-nodes
Good question! I wonder the same thing
I'm guessing it could be electrostatic forces arising from charging via friction... the nodes and antinodes are surely responsible for the larger trend. The fundamental wavelengths are much larger than the tiny displacement you are referring to, so I'll guess it is not due to them (nodes and antinodes)... even if they were from harmonic overtones, there would be evidence of larger gaps for various harmonics.
I could be wrong :-/
That's because the velocity of the wave is constant, and only vary when you change the environment( v= lambda X frequency). So as the frequency goes up, the lambda gets smaller
very nice!
Oye que me preguntan en clase cómo te llamas? Sigues por ahí? cuántas frecuencias llevas ya?
Hello.
I would to know what is the power of speaker.
Thanks :)
And the lenght of tube
It seems like you want to build your own tube. I built one myself and it’s quite easy. For the speaker: Since the the manufacturer’s informations are pretty much arbitrary, just use a speaker if a sufficient size (mine has a diameter if 13cm). It shouldn’t cost more than 20-30$. The length of the tube doesn’t matter much. If you use a different length, the frequencies with which you can generate the figures in the styrofoam will differ from what you see in the video. I‘d recommend a tube length of 1m-1.5m. But you will need a decent frequency generator with a strong enough output. If you use your cell phone and an amplifier, you will grill your speaker. I don’t know why, but I’m guessing it has something to do with blind currents.
Awesome 😍😍😍
Ok but she was so cute >.
Sir i tried making this using a flourescent tube .cutting both edges removing mercury. Placed a piston at one end and a speaker at other. Applied every audible frequency from hz to kh but the beads wouldn't move. What might be the reason ? Kundts tube is my final year bsc physics project topic. How can I make these thermocol beads move and measure length between nodes and determine velocity of sound . Please help
Prayas 2.0 😂
Heeey, where are you noww? :D
Great vid😩👌
How do you make one?
Why do the poly balls stand up in columns?
do you have one for 66.3 hrz
genius
Do you know how LOUD your had your amp turned up? I'm trying to do this for a project and my little speakers just aren't cutting it.
guys from wow batch hello
near frequency you must write the wave length and the tube length.
Excelente!.
What vibrations.
Thanks man👍
Its great to see how resonance works.....
Btw why don't you used LYCOPODIUM POWDER
This Sound is best to make a room empty ...
Nice
@auburnisaak1 No, sorry...though it seems several people have done it with a related demo (Ruben's Tube), so it definitely could be interesting...If you do it, post it! It looks like it's one of the few things that youtube actually doesn't have!
nicee
Stepping up frequencies to the ultimate limit is only possible in imagination of the superimposed wave-particle positioning 1-0-infinity probability limit, which is the circumstance of the "Full Message" of holography. So the inside-outside presence of an e-Pi-i Apature distributed in absolute zero-infinity transverse trancendental sync-duration harmonic is at least comprehensible from this simple demonstration device.., when you think it through the due process expected of a Math-Physics Researcher.
Because, raising the frequency of the tube is what is done in Accelerators like the LHC, which we all know has a limit of construction that ends in making a Black Hole, a Singularity wrapped up in zero-infinity frequency range vibration, or the ultimate Reciproction-recirculation positioning of holography that leads directly to the conclusion that the Universe is Holographic Principle Imagery projection-drawing in Black-body Superspin AM-FM Communication In-form-ation.
If you can navigate your way to recognise Euler's e-Pi-i 1-0-infinity instantaneous trancendental, spin-spiral cross-sectional interference dimensionality, that is the Observable constant creation connection exemplified in the demonstration device shown.
(By observation, the theory of the supposed Big Bang, [a half-truth picture extracted from Actuality], is unsubstantiated)
como se hace
Só uma dúvida: é menino ou menina benino(a)?
Fiquei indeciso se você é um fruto de nossa péssima educação ou se a nossa educação é péssima por termos tantos jovens como você...
Oooooh myyyyy Gooooood😍😍😍😍😍😍😍
Quem veio pela aula de física do Renato Brito (Vestcursos)?
eu kkkkkkk
eu kkkkkk
Isso ainda vai ser uma questão do Enem, ctz
Kk espero que sim
"What instrument do you play?" --> it's complicated!
Ausome bro
Chop czy baba?
👌
Awesome sauce doesnt know how to tell guys and girls apart. How many times has that gotten you into bedroom situations you didn't want to be in?
John Batterswag is a winky.
Thawfeeq...
New ringtone
kinda reminds me of slimesicle
Yeh ldki h na ? 😭
1:57 - that's not 179hz, sounds more like around 150ish.
The others sounded off as well, but just so happen to know that 179hz is just slightly higher than the note "F", and yet the sound (coming out of my speakers at least) was closer t D#
What's the point of this tube exactly? Please keep this simple for non scientists.
Chłop czy baba?
thug life
After RJ Sir down
Такая прикольная)
Fact: no one uses a earphone while watching this video
A= 432
I have an idea for a potential industrial use for this that could mitigate some significant environmental damages caused by the mining industry. If yur interested in testing the theory using your apparatus, here it is. If you do it, I'd like to know the results. Take a dry sample of black sand gold ore concentrates and place them in the tube. You can find "paydirt" online for less than $20. Play around with the frequencies and angle of the tube to see if you can get the gold particles to separate from the rest of the pile. Maybe oscillate freqs?? If you can accomplish this, you have a real winner....... just a matter of engineering a system from that point. That's what I do.
Say Kundts three times fast.
Hii
this tuve is liek the tube that went reallt tuby and went ui like drisfotopher robaldo suiii and then the things webt ul and down was was insane and jhe is the defenition of a jeffu an seth said cause that giu is tof and clueless
ALLEN
Liam neeson brought me here lol
Play dubstep!
Bet this he or she is a millionaire for staying in school
Prayasians 2.0
LOL