Ive looked all over for a video to explain this, and you did it perfect job just clicked. This was most likely due to the fact that you used actual obiects in your video thanks a lot 😀😀
@TaiStar422 жыл бұрын
Still the best five years later
@abdullahqureshi59342 жыл бұрын
Ahhhhh... This topic haunted me for so long I just don't understand until I don't do and I just felt like I was doing that all Thankyou very much
@jonni27346 жыл бұрын
Wooow! You explained it very well!! Awesome video!!
@salouga74003 жыл бұрын
WOW!! this is amazing! thank you for making it really intresting as it is! keep up the good work!
@markoselendic36904 жыл бұрын
At 1:30 how do we know there aren't any other nodes/antinodes inside the tube? Why wouldn't it be a node-antinode-node-antinode distance, in which case the tube's length would equal 3/4 of the wavelenght? I know that then it's a higher harmonic but the equation then changes completely and we get a frequency that's triple its original one.
@fettyprime87803 жыл бұрын
I thought the node was the the open end and the antinode was at the closed end..
@Feynman_Fries2 ай бұрын
After all these years of struggling to understand this, I'm overwhelmed and can only say thank you. Thank you for explaining this.
@tomtroszak7 жыл бұрын
Wow, first explanation of sound wave mechanics that ever clicked in my brain. Thank you! The most educational 6min 49 sec ever!. So far so good. Now, why does the bottle have a much lower resonant pitch than the graduated cylinder, even though it is much shorter? Hmmm. Is there a correlation between the total volume of the bottle and the graduated cylinder? Can the length/width be factored in to predict the frequency of resonance? Why is it that every question you answered raises another question in my head? Or in this case three, Haha, thanks again!
@JamesKaramath2 жыл бұрын
Every single one of your videos are gold dust! Gutted to have discovered then so late!!!!!
@muhammadhussainsarhandi99284 жыл бұрын
Dear Respected Sir, you are great, you are doing great job. Also you look very handsome.
@ittechsupport81493 жыл бұрын
Gay bruh
@muhammadhussainsarhandi99283 жыл бұрын
@@ittechsupport8149 Nonsense,
@nilimashrivastava95204 жыл бұрын
why does not every educational video on youtube is like this one filled with examples and fun
@briandiner86006 жыл бұрын
This is the best explanation for sound waves I've ever heard. Thanks!
@bsdiceman7 жыл бұрын
speed of sand?
@poketube62244 жыл бұрын
He said sound
@kaylajane78654 жыл бұрын
"cuttt"
@spacemandan79716 жыл бұрын
Thank you so much for making these. I always feel like I come away with a at least basic understanding of something I couldn't grasp before. You explain things very well. =)
@Mikeltoli27 күн бұрын
Most people get overwhelmed because they don't know the basic formula for where their numbers come from-oh, I remember you mentioned 1/4. The formula can be asked about in ChatGPT or found in a book, for example: L=(2n−1)×wavelength/4 n is the level of the tone
@neerajtiwari53657 жыл бұрын
Really great video.Please keep up the good work.Now,I have a doubt that at 4:38 the tuning fork resonates 2-3 times with the cylinder with decreasing amount of fluid.How is that possible?I know that the tube can have several different frequencies but I think the tuning fork has only a single particular frequency so how can it resonate with all the different frequencies ,as I have read that resonance only occurs between "similar" frequencies?
@thereal.parameswar2 жыл бұрын
TUNING fork have a fixed frequency. as the level of water decreases the length of the pipe increases the frequency decreases. In a standing wave of closed pipe odd multiples of the fundamental frequency gives the next frequencies which can resonate with the tuning fork as the length of the pipe valued is different in each resonance. so the tuning fork is not responsible for numerous resonance, the increasing length of the pipe makes it behave like different pipes of odd harmonics
@vedantthanki745 Жыл бұрын
I tried do determine the sound speed in my room using your way. It came out to be about 320 m/s, with a constant frequency of 696 Hz and wavelength about 0.46 m..... Can it be somehow correct?? Btw it's cold here ( below 20° C)
@Manas_Agnihotri2 жыл бұрын
good boy
@MyJ2B3 жыл бұрын
Very clear explanations with intuitive interpretation of the equations. Well done. I am physicist-musician (guitar).
@KunalPareek-bo3sx4 ай бұрын
One thing you didn't mention it when we fill a bottle(or a tube in this case) like at 4:28 the frequency of sound coming increases as the length of air in the tube is decreasing so the wavelength decreases resulting in increased frequency!!
@abhijitkolhe43703 жыл бұрын
I have tried a lot but failed to make a PVC flute of 6 holes closed at one end with a rubber cork...sir Can you help me anyhow to find the distance between cork, blow hole and the figure holes???....please
@nikhilnegi94462 жыл бұрын
How do we know that air in the tube will vibrate at its fundamental frequency while calculating the speed of sound?
@manuvanhaverbeke7675 жыл бұрын
hi James, thanks for this interesting film. My students tried to calculate the groundfrequency of a soda bottle yesterday, just by measuring the length of the bottle and using 340m/s for the speed of the air. They found a frequency of app 410Hz. When they blew on the bottle, they found a frequency of app 250Hz using their mobil phones and Phyphox. Using 250Hz the bottle resonated, not wit 410Hz. Can you explain this difference? Thanks !!
@aaptfilms5 жыл бұрын
Yes, the bottle is not a tube. There is extra width which increases the effective length. The formula I use is only for long thin tubes, in fact it is an approximation for 1D sound waves. The worst bottle would be a perfect sphere, which is known as a helmholtz resonator. Most bottles will not meet the tube approximation, which itself has some problems.
@briarrose20245 ай бұрын
does anyone know what the name of the music he used at the beginning for his intro? it sounds really nice and i want to know the name so i can find it elsewhere 😭
@annie317813029 жыл бұрын
Superb demo; we're watching it in my advanced phonetics class.
@lasithathilakarathne32056 жыл бұрын
Nice bro keep it up
@CrazyGamer-xi8rf6 жыл бұрын
Awesome video man... Thumbs up
@sleepybunny23903 жыл бұрын
this guy looks like the teacher in the movie who's having a fling with one of the students
@ThomasHaberkorn4 жыл бұрын
Great video! However, could you give an explanation on why a node exists in the middle of the double-open pipe? Or: why aren't the gas molecules all move in unison back and forth along the pipe? Thanks!
@christinehalley2914 жыл бұрын
I don't know about the gas molecule part. But for an open ended tube at the ends you'd have anti nodes since max displacement occurs. And a node can be found exactly half way between two anti nodes thus in the middle of the double open pipe
@MrGdsuta5 жыл бұрын
I wish I had found your videos long ago. I am a Physics teacher too. I am wondering how you set up your class so that every kids has the inquiry opportunity which is hard to manage. How many kids do you have per class and do you ask the students do the experiment by themselves or what? Thank you.
@aaptfilms5 жыл бұрын
The magic word is "Stations." You want perhaps as many as 5 experiments set up in your classroom. The students can rotate from table to table trying out the experiments. Get them to put their hands-on the experiment. Even in this video, each experiment can be a station. I know it is hard, but try to eventually have a hands-on activity every day.
@slodkiocb Жыл бұрын
What is that cartoon science behind Your back ? 0:33
@cutnslide2 жыл бұрын
can you set up a technique for measuring standing waves in a tube with BOTH ends OPENED ?
@satvikaputcha5 жыл бұрын
This is away better than the other videos on the internet. You explained it very well. Please make more videos on such kind of practicals. Keep up your good work!
@Ahmedibrahim-xv1je5 жыл бұрын
Yeahhhh I've watched loads of videos to understand this but non of them got me to understand same as this one
@vilepupz6 жыл бұрын
v good video, my dude. uwu
@sandeshdesai67226 жыл бұрын
its great dude
@Tousa932 жыл бұрын
So helpful , Thanks
@macyoutubular3 жыл бұрын
approximately before the year 1815 the brass trumpet had no valves. could the physics you are explaining result in designing a superior trumpet of that pre-1815 type? We know obviously that trial-and-error could be used to find a proper trumpet tube length (and we know that the primary note and also the harmonics) are keyed to the fairly precise length...Ultimately I am asking do you think the phyics (a la math) is really key to design of a superior or more perfect trumpet? (but what is "perfect"....could be output power or could be frequency precision [ in-tune or out-of-tune] I would suppose).
@gokaysezgin7 жыл бұрын
Amazing, i was looking for this!
@science-maths8-1293 жыл бұрын
Amazing video..I have been looking for this content for long time..now I found this..wonderful
@darksoul89935 ай бұрын
This guy so good.
@DeeJarh-i2e8 ай бұрын
Cut 🤭😁 I love this video and the way u were enjoying the teaching (evident from your constant smile)
@ThomasHaberkorn4 жыл бұрын
Dear Prof., I have a mix up in my terminology, I think you can clear things up. I did the following experiment: I have air flowing through a straight pipe. Pressure ratio between outlet and inlet is lower than the critical pressure ratio, which suggests flow velocity at the outlet is close to the speed of sound. I have recorded the sound of this process and analyzed the frequency spectrum. Suprisingly for me (but maybe not for you), the dominant frequencies are in a integer ratio to one another. So this would imply a standing wave behaviour.. but can it be called that? The air is moving at a great speed through the pipe after all. I search on the web for explanation, of little avail. Literature containing a mathematical approach would be greaty appreciated. Take care, love your videos.
@tanhoang863710 ай бұрын
You did it perfectly to help me understand physics. Thank you professor !
@justinle9986 жыл бұрын
Crazy how electromagnetic waves behave very similar. We can use “tubes” of quarter wave length and see the same resonant effect if the end is closed with a conductor. But if the end is opened then the resonant frequency is half wave length. Just like sound in this video!!! I actually use this at work everyday.
@jinorriwilson41964 жыл бұрын
Awesome. Couldn't have explained better.
@Tom-sp3gy5 ай бұрын
Brilliant !
@vinayakmishra84083 жыл бұрын
beutifull thats all
@lancelovecraft59133 жыл бұрын
Nice vid. We were given some at home lab kits w no instructions at all so I'm just going to follow this vid and write up a lab report on that
@okschn12072 жыл бұрын
Sneaky goated
@bipinkc43463 жыл бұрын
I can't explain how much it helped me...thanks a lot sir..!
@dhanashreeyadav80733 жыл бұрын
This was really helpful👍 and most nice explanation ever senn
@mechanicsforigcse5242 жыл бұрын
Amazing and the best to understand .... Thanks a punch
@zamarakakar83523 жыл бұрын
Howard wolowitz, but seriously you're a gem.
@abdulbarihussain28135 жыл бұрын
Why are we comparing wave length with the length of tube ? @1:35
@abhijitkolhe43703 жыл бұрын
Lovely....
@filosofiadetalhista5 жыл бұрын
Perfect video. Note that at 5:43 you should have said that the wavelength is half as long.
@betul-ev2fu3 жыл бұрын
*omg wooow*
@yulehuang39304 жыл бұрын
thank you for the video! Great explanation! Totally love it!
@madhulikavemparala76623 жыл бұрын
woaaaahhh that was amazing!!Thank you!!
@PaulSt-Germain-c7u5 жыл бұрын
Finally I understand it. Great video. Thanks.
@youtubegoldmines10 ай бұрын
Why hold it sideways
@youtubegoldmines10 ай бұрын
Why hold the tunning form sideways?
@roseb21055 жыл бұрын
excuse me simple question but how did you get that the frequency is 288 and the wavelenth 1.6?
@aaptfilms5 жыл бұрын
The frequency is stamped on the tuning fork. See this video: kzbin.info/www/bejne/ZoOpnXuBhZKNhZo
@thanasiskantas28715 жыл бұрын
Great video, relly helpfull!
@rithvikO_o3 жыл бұрын
WOW VERY INTERESTING!
@ICXC888NIKA5 жыл бұрын
Great job! Thank you so much
@adityabansal55587 жыл бұрын
This is some quality stuff. Thanks
@arj123sub3 жыл бұрын
Great video 👍
@tushart.sonwane93525 жыл бұрын
You are awesome
@dark808bb89 жыл бұрын
cool vid thanks.
@jueedhar54496 жыл бұрын
i have a doubt sir , that shouldn't the tuning fork be placed like 90 degrees rotated about axis ,like the fork is vertical and not face down ,the disturbance cause by the fork is not face down but along the tuning fork. pls clarify.the theory is very well explained by u sir :-)
@aaptfilms6 жыл бұрын
Both 90 degrees and zero degrees rotation will work. However, 45 degrees rotation will be silent. Try this by holding a fork to your ear and listening.
@jueedhar54496 жыл бұрын
umm..but wont the propogation be along the prongs and the disturbance needs to be in direction of the tube sir?
@vivekgoenka0073 жыл бұрын
This is Gold.
@suraiyakadri42904 жыл бұрын
We are kids
@AlisonJoy-ne3yu4 жыл бұрын
bill nye vibes
@umasrivastava41424 жыл бұрын
So cool.
@mehmetzeki24368 жыл бұрын
I like this channel!
@nucleus78965 жыл бұрын
WOW!!!!!
@mabinpanday6 жыл бұрын
Just WoW
@parvathisurineni89027 жыл бұрын
thank you
@muneerunnisashaik16457 жыл бұрын
fab vid
@akshilahuja35804 жыл бұрын
Nice job Just one issue You cannot assume (1:29) the node to anti node distance to be one quarter of the wavelength, it can be three quarters or even five quarters.