These videos are excellent. He's so good at condensing all the information together in a way that doesn't overwhelm you. He gets right to the point -- no fluff, but somehow also gives enough details for it to all make sense. He's got a real gift for communication!
It's really cool that colors also follow rules of math. That's why certain colors look so good together even though they aren't alike at all. Ex blue and yellow. While certain look hideous when put together ex. Orange and pink. There is a geometric relation of contrast, grading and a whole color theory to be studied. Math is awesome!
not sure that colors that "look good together" is tied to standing waves- that's fairly subjective. But standing waves and light ARE the reasoning behind why you can see rainbow patterns in oil on water, or why certain insects can have dazzling colors
This video was so informative. Thank you again Prof. Dave ! I'm taking Physics II now, and i'm getting so interested in waves. Physics I was such a bore in comparison
I really like the way you are explaining these concepts!! I do this in my personal note-taking where I will take a complex term and break it down into simpler terms and then try to "walk" my way through the terms in a sequence that makes the "bigger picture" easy to imagine as a progression of ideas that build off of each other in an obviously related way. You do this better than I've seen anyone do in a video before!! Thank you so much, very inspiring!!
I first became aware of standing waves and room nodes in the later 1970's. Room size, acoustics and shape can disastrously affect sound. I have used, to good effect, a graphic equalizer since 1978 in my audio chain. An anechoic chamber might not be practical in your home (mine neither) but a quality EQ can help a lot. I've used an ADC Sound Shaper Two IC since purchase in 1982. Thanks for the lucid explanation of this phenomenon.
Standing Waves and quantization is also the reason String Theory is so important even though it is not well understood. It has the principle of Nature at it's core.
What an amazing overall this classic physics series has been so far. I am enjoying every bit of it. Thank you Dave, your work has been a great help in my exams preparation.
Liked and subscribed! This was an excellent introductory view of harmonics and standing waves. Looking forward to digging through the rest of your material. Thank you, from a life-long autodidact trapped in a cycle of shift work. **edit** The "d" stands for "David", by the way. Glad to see another Dave doing such good work.
Brilliant how you define problem of The amplitude of harmonics in modern way! Thank you for nodes and standing waves. The alternative process-of extracting from the signal the various frequencies and amplitudes are present practical for physical approach like: "How to guid!"
Thanks professor Dave. I teach earth and space science so I cover electromagnetic waves as well as mechanical seismic waves. I like to do a denser spring demo with the kids but I don’t delve too deeply into the mechanics of waves. I would like to use this video as an enrichment activity though. Thanks so much for this 👍
Great video! A minor point in the grand scheme of things, but modern tuning systems do not use integer ratios as the basis for frequencies, but irrational numbers. Sometimes they are close, for example the fifth and the fourth, but sometimes they are quite far apart. Ultimately, this is because rational intervals cannot subdivide the octave, so if you use rational intervals you'll always run into problems with intervals which sound bad. By using irrational intervals, you can spread out the error to make the tuning system more flexible.
I think possible chinese air force of japan or our naval aviation had an idea of roller conveyor build of sound so air plane or anything can ride on it frictionlessly like roller convey by standing way rolling conveyor..that is how the back to the future hover board is designed
Could this be why the all the bills were removed from the Catholic Christian Church and replace with lower frequencies or speaker amplified bells are you able to explain this to me sir
Hey Professor Dave you should watch Alain Connes, Fields Medal math professor - his youtube lectures on quantum music of the sphere. He calls it (2, 3, infinity) because the 2/3 and 3/2 standing waves are actually noncommutative geometry. There's more to it but I won't steal his show...
Hello Dave! I have to say that if I know this stuff already Pretty Well, I don't know, just hearing You and seeing your Very Clear btw Presentation, I have Realised something of VERY GREAT Importance to me while relating Standing Waves with something very specific. I guess I have to thank You and to Congratulate You for the Pedagogic Quality :) Very Thanks for your video :)
Wait a minute: does this means that if standing waves don't behave as they behave due to the natural laws of physics, music as we know it wouldn't exist?
We can. One example of such a system is the vibrations on a drum head, where you need a Bessel function to calculate the natural frequencies. This is why a drum has a characteristic percussive sound, where it doesn't register as a music note to us. It is a mix of frequencies that don't fit their waveforms together, like the harmonics of melodic instrument sounds. It is the case for standing waves on a string, that the harmonics have to be integer multiples of the fundamental frequency.
With HiFi headphone, I can hear up to 1hz, with the pure tone wave, here I mean the normal smooth wave, not the winding wave, because the audiometry on a winding wave is unfair ??
Many thanks for an informative video. May I ask a question: do I understand correctly that an octave is the sum of the first and second harmonics (or in fact just the second harmonic) and a fifth is the sum of the second and third harmonics (or just the 3rd harmonic in fact). Cheers, in anticaption, John Roberts.
An octave is a 12-semitone interval between two frequencies that have a ratio of 2 between them. A fifth is a 7-semitone interval, that has a 1:1.5 ratio between the frequencies
Hiii prof. I'm from india and let me tell u that the videos in my own language didn't helped me as much your video did.👌👍😊😊😊😊💯 Thnq very much prof. It really helped me....from niw i would prefer u💯😊😊😊😊.. Love from india👍👌💯💯😊😊😊😘
Sir do vocal folds vibrate at multiple frequencies at the same time. Means how do vocal folds produce both fundamental vibration and series of harmonics simultaneously??????pls clarify sir. Is it done by vocal folds or vocal tract or by fundamental vibration itself ??
These videos are excellent. He's so good at condensing all the information together in a way that doesn't overwhelm you. He gets right to the point -- no fluff, but somehow also gives enough details for it to all make sense. He's got a real gift for communication!
I was NOT expecting that intro, lowkey enjoyed it though
I thought professor Dave explains only chemistry but he explains physics too..he's a life saver 😭❤️
It's really cool that colors also follow rules of math. That's why certain colors look so good together even though they aren't alike at all. Ex blue and yellow.
While certain look hideous when put together ex. Orange and pink.
There is a geometric relation of contrast, grading and a whole color theory to be studied.
Math is awesome!
I'd like to know more about this. Can you provide me a good source or article? Thanks.
Why you dont like orange and pink? thats just classic sunset flavour
not sure that colors that "look good together" is tied to standing waves- that's fairly subjective. But standing waves and light ARE the reasoning behind why you can see rainbow patterns in oil on water, or why certain insects can have dazzling colors
This video was so informative. Thank you again Prof. Dave ! I'm taking Physics II now, and i'm getting so interested in waves. Physics I was such a bore in comparison
I was trying to understand musical chords and ended up here
Thanks Jesus
@therealnightwriter
I don't think he is even christian .
He is just saying that based on his (Dave's) appearance.
therealnightwriter r/woosh
@therealnightwriter LOOL shut up neckbeard.
@@hmmmwhat7207 Can I be in the screen shot?
@@chemistryguy9679 r/canibeinthescreenshot
I think we really need more detail about the consonant intervals. Deserves its own video
Cool way of remembering nodes
node = no amplitude
Antinode = yes amplitude
I really like the way you are explaining these concepts!! I do this in my personal note-taking where I will take a complex term and break it down into simpler terms and then try to "walk" my way through the terms in a sequence that makes the "bigger picture" easy to imagine as a progression of ideas that build off of each other in an obviously related way. You do this better than I've seen anyone do in a video before!! Thank you so much, very inspiring!!
Hello... Putrycz
I first became aware of standing waves and room nodes in the later 1970's. Room size, acoustics and shape can disastrously affect sound. I have used, to good effect, a graphic equalizer since 1978 in my audio chain. An anechoic chamber might not be practical in your home (mine neither) but a quality EQ can help a lot. I've used an ADC Sound Shaper Two IC since purchase in 1982. Thanks for the lucid explanation of this phenomenon.
Standing Waves and quantization is also the reason String Theory is so important even though it is not well understood. It has the principle of Nature at it's core.
Beautiful explanation of a beautiful topic. Thanks Prof Dave.
What an amazing overall this classic physics series has been so far. I am enjoying every bit of it. Thank you Dave, your work has been a great help in my exams preparation.
Watching this video just made me realize how little I know abt physics....
Hai
Well good thing there was hardly any physics in the video.
@@pirate0bloodyskull ikr
Thanks for going into detail on this I always wondered how to explain that
Thanks!
Liked and subscribed! This was an excellent introductory view of harmonics and standing waves.
Looking forward to digging through the rest of your material. Thank you, from a life-long autodidact trapped in a cycle of shift work.
**edit** The "d" stands for "David", by the way. Glad to see another Dave doing such good work.
Thanks Prof! Please make your next videos on Electric Field, Flux, Potential and Gauss Law! Thanks!! :D
Brilliant how you define problem of The amplitude of harmonics in modern way!
Thank you for nodes and standing waves.
The alternative process-of extracting from the signal the various frequencies and amplitudes are present practical for physical approach like: "How to guid!"
thanks Prof Dave! this really helped
Thanks professor Dave. I teach earth and space science so I cover electromagnetic waves as well as mechanical seismic waves. I like to do a denser spring demo with the kids but I don’t delve too deeply into the mechanics of waves. I would like to use this video as an enrichment activity though. Thanks so much for this 👍
The explantion is very clear and easy to understand. Thank you very much.
You're so amazing professor
Thanks professor Dave that’s totally helpful for me
I'am a teacher, but feels like a student when he lectures. I enjoyed your videos a lot
You are good explaining !!Congratulations
I have a test tomorrow and you helped a lot.
Sir these short vedios are quite amazing and helpful too. The way you deliver the content is unique in itself. Thankyou Sir.
Great job done professor Dave🎉
yeah i still cant understand how can someone simplify stuff yet cover all details.
Great videoas always.
thank you
Great video!
A minor point in the grand scheme of things, but modern tuning systems do not use integer ratios as the basis for frequencies, but irrational numbers. Sometimes they are close, for example the fifth and the fourth, but sometimes they are quite far apart.
Ultimately, this is because rational intervals cannot subdivide the octave, so if you use rational intervals you'll always run into problems with intervals which sound bad. By using irrational intervals, you can spread out the error to make the tuning system more flexible.
Outstanding sir
One of the best channels!
thanks as always, your videos are always helpful.
Lots of love from india sir❤️
Clear explanation..
It was easy after learning this ... Thank you prof.😃
great lesson. Thanks
Nice explanation
I think possible chinese air force of japan or our naval aviation had an idea of roller conveyor build of sound so air plane or anything can ride on it frictionlessly like roller convey by standing way rolling conveyor..that is how the back to the future hover board is designed
Could this be why the all the bills were removed from the Catholic Christian Church and replace with lower frequencies or speaker amplified bells are you able to explain this to me sir
Hey Professor Dave you should watch Alain Connes, Fields Medal math professor - his youtube lectures on quantum music of the sphere. He calls it (2, 3, infinity) because the 2/3 and 3/2 standing waves are actually noncommutative geometry. There's more to it but I won't steal his show...
Thxz a lot prof
Excellent video! Thanks, I'm going to link here for my students!
Thank you
i love the music for checking comprehensions
thanks so much
Thank you professor
thank you very much this helped me a lot while reading my book
Fascinating that combined standing waves at constant intervals produce perfect tones in music... Thanks professor Dave... ☮🔥
Can you explain where the extra length of string comes from when the standing wave is at its highest amplitude vs when it is a straight line.
If a guitar string is a standing wave, with no oscillations at the boundaries, why does changing the tension change the pitch?
I have an upcoming exam thanks alot professor Dave
Nice explaination.
Respect from Punjab india. 🙏☺
nice presentation:)
Cool he is!
such as flavor/color change and spin
Sir , you look like a ranveer kappoor, (who is indian actor). And you teach excellent
Kapoor
Hello Dave!
I have to say that if I know this stuff already Pretty Well, I don't know, just hearing You and seeing your Very Clear btw Presentation, I have Realised something of VERY GREAT Importance to me while relating Standing Waves with something very specific. I guess I have to thank You and to Congratulate You for the Pedagogic Quality :)
Very Thanks for your video :)
I am your fan
Thanks
Comprehensive explaination
Dude u r a life saver
When you pluck a string, it travels like a jump rope it is not 2 dimensional. Wouldn’t the wave also be radial? Or helical?
even when within the depths of A-Level physics revision GCSE music still finds a way to haunt me
Awesome!
upload video on Doppler effect
Thanks proffy
this is great!
Thank you, now I understand quantization. lol
if u rlly think about it waves are energy. energy shapes our reality. so waves shapes our reality
can this relate to the spin of subatomic physics ?
as a music producer this was interesting
Why are light and matter standing waves
Its great to see Ranbir kapoor teaching physics.. keep it up bro..👍
Yaa i also think same
Thankyou!
you're nice thanks
Wait! Why is a third harmonic called a fifth, not a third??? What is it 1/5 of???
Nice 🎉
what about PHI ratio harmonics?
Wait a minute: does this means that if standing waves don't behave as they behave due to the natural laws of physics, music as we know it wouldn't exist?
Why can't we have *Transcendental multiples* of Fundamental frequency? And what are some systems that exhibit Non-harmonic behavior?
We can. One example of such a system is the vibrations on a drum head, where you need a Bessel function to calculate the natural frequencies. This is why a drum has a characteristic percussive sound, where it doesn't register as a music note to us. It is a mix of frequencies that don't fit their waveforms together, like the harmonics of melodic instrument sounds.
It is the case for standing waves on a string, that the harmonics have to be integer multiples of the fundamental frequency.
Standing & 4th harmonic is physics like we can listen in.
With HiFi headphone, I can hear up to 1hz, with the pure tone wave, here I mean the normal smooth wave, not the winding wave, because the audiometry on a winding wave is unfair ??
do you have a transcription of this video? I would benefit from a text version to read. Thanks for making!
Also, do any of your lessons cover traveling waves?
Are waves on a guitar really considered stationary if the waves produced by the guitar are traveling through air?
the vibrations on the string are standing waves
bless ur soul
Many thanks for an informative video. May I ask a question: do I understand correctly that an octave is the sum of the first and second harmonics (or in fact just the second harmonic) and a fifth is the sum of the second and third harmonics (or just the 3rd harmonic in fact). Cheers, in anticaption, John Roberts.
An octave is a 12-semitone interval between two frequencies that have a ratio of 2 between them. A fifth is a 7-semitone interval, that has a 1:1.5 ratio between the frequencies
Hiii prof. I'm from india and let me tell u that the videos in my own language didn't helped me as much your video did.👌👍😊😊😊😊💯
Thnq very much prof. It really helped me....from niw i would prefer u💯😊😊😊😊..
Love from india👍👌💯💯😊😊😊😘
'Preciate it.
i like the beginning song its great
Sir do vocal folds vibrate at multiple frequencies at the same time.
Means how do vocal folds produce both fundamental vibration and series of harmonics simultaneously??????pls clarify sir. Is it done by vocal folds or vocal tract or by fundamental vibration itself ??
Yes. That is how you can tell the difference between a human voice and a pure sine wave, both with the same frequency.
thanks its tooooooooo helpfull
what is resonant frequency?
A frequency at which a body that is free to vibrate, can start vibrating due to another energy source of the same frequency.
Why do I get the feeling that this is more relevant than we know?
Three d is bubbles
Can someone direct me to a video that explains how multiple harmonics/standing waves can exist simultaneously on a string....thanks
Did not understand your question.....
I am just a humble guitarist. What is an integer? lol
whole numbers! 1, 2, 3, 4, etc.
@@ProfessorDaveExplains oh! I think I do remember from an ancient math class. Thank you!
@HackYourHealth 🤣#ancient
consonant intervals are boring to a jazz- and semitone- and major-seventh- loving ear :)
wouldn't the 3rd harmonic be 2/3 wavelength?
Connor Gabor no because 2/2 is one wavelength so if it goes past another wavelength to get to the third node then it would be 3/2
Angelika Helmer and they can’t be an integer
this dude's legit