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!
@VoodooChi4 жыл бұрын
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.
@PerpetualPrograstinator5 жыл бұрын
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!
@ZzSlumberzZ5 жыл бұрын
I'd like to know more about this. Can you provide me a good source or article? Thanks.
@supernovasimulations Жыл бұрын
Why you dont like orange and pink? thats just classic sunset flavour
@ScienceTeacher-lm3jk4 ай бұрын
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
@hanxia98626 жыл бұрын
Thanks Jesus
@shantanujha2085 жыл бұрын
@therealnightwriter I don't think he is even christian . He is just saying that based on his (Dave's) appearance.
@hmmmwhat72075 жыл бұрын
therealnightwriter r/woosh
@unluckycriminal5 жыл бұрын
@therealnightwriter LOOL shut up neckbeard.
@chemistryguy96795 жыл бұрын
@@hmmmwhat7207 Can I be in the screen shot?
@yo-akiba5 жыл бұрын
@@chemistryguy9679 r/canibeinthescreenshot
@myworldmusic72 жыл бұрын
I thought professor Dave explains only chemistry but he explains physics too..he's a life saver 😭❤️
@kikiwg22644 жыл бұрын
I was NOT expecting that intro, lowkey enjoyed it though
@dheeraj3945 Жыл бұрын
I was trying to understand musical chords and ended up here
@lauraoelke90894 жыл бұрын
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
@TranceCore33 жыл бұрын
2:04, if that's how drums make their sound in slow motion, that's fucking cool.
@lukeali15803 жыл бұрын
Amazing, right? I will never look at drums the same way again!
@carultch3 жыл бұрын
That is an animated graph of the Bessel function, which is the solution to the wave equation with the boundary conditions of a drum head. In other words, that is how a mathematically idealized drum would vibrate.
@martyjewell56833 жыл бұрын
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.
@starexplorers12022 ай бұрын
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.
@24carrot_2 жыл бұрын
I think we really need more detail about the consonant intervals. Deserves its own video
@jennydeng5934 жыл бұрын
Watching this video just made me realize how little I know abt physics....
@evandrocarlociaccia98773 жыл бұрын
Hai
@pirate0bloodyskull3 жыл бұрын
Well good thing there was hardly any physics in the video.
@keshavleitan78002 жыл бұрын
@@pirate0bloodyskull ikr
@Canjeero314 Жыл бұрын
I’ve reached a point where I like the video before it even begins, I just know it’s going to be amazing
@Putrycz4 жыл бұрын
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!!
@raghuram39269 ай бұрын
Hello... Putrycz
@m4rzb4rz-qq3yq4 ай бұрын
Cool way of remembering nodes node = no amplitude Antinode = yes amplitude
@imad79957 жыл бұрын
Thank You Prof. Dave. :) This is coming in my exams 2 weeks from now, and the video definitely helped.
@StatedClearly5 жыл бұрын
Thanks!
@edsohovocals11 ай бұрын
Beautiful explanation of a beautiful topic. Thanks Prof Dave.
@Waqar_Ahmed754 ай бұрын
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.
@ANJA-mj1to10 ай бұрын
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!"
@earthling20074 жыл бұрын
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 👍
@koungmeng3 жыл бұрын
Thanks now I know the connection between music and quantum mechanics
@PowerPointSh0w2 жыл бұрын
I'am a teacher, but feels like a student when he lectures. I enjoyed your videos a lot
@chia9164 жыл бұрын
Thanks for going into detail on this I always wondered how to explain that
@dfiala98906 жыл бұрын
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.
@MelloCello75 жыл бұрын
Good sh*t man! But on the real, I was looking for a clear and concise explanation of this phenomena, the "must have 0 amplitude at the boundaries" really did it for me. My question is what if you tried to force an incompatible frequency into a wave with a fixed boundary??
@veenabijalwan12265 жыл бұрын
Standing waves are a special case of wave interference, for an incompatible wave (different w, where w is angular frequency), you can use the superposition priciple to check the amplitude of the resultant wave. The new wave wont be a standing wave but an interference result. For example, For a 2 mechanical waves on string which are moving in same direction, we can interfere them as- Y1(x,t) + Y2(x,t). It shall come out to be - 2a cos@/2 sin(kx-wt+@/2) where @ will be the phase difference between them. So interference of two diffferent waves can be calculated this way.
@TheSecretBuster7 жыл бұрын
Thanks Prof! Please make your next videos on Electric Field, Flux, Potential and Gauss Law! Thanks!! :D
@user-zd7sj3ud8s4 жыл бұрын
Prof dave .. pls can u tell me how can i study pysic in best ways pls ... and im always watching ur videos ❤ Also can u tell me some advices about studying physic pls ?
@EricPham-gr8pg5 ай бұрын
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
@markkennedy9767 Жыл бұрын
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.
@sathvikmalgikar28423 жыл бұрын
yeah i still cant understand how can someone simplify stuff yet cover all details. Great videoas always. thank you
@lightclock97613 жыл бұрын
The explantion is very clear and easy to understand. Thank you very much.
@wolfpatrol3187 жыл бұрын
There's an error at 2:56. The second major sixth should be a major seventh instead.
@ProfessorDaveExplains7 жыл бұрын
oh man how did i miss that! it's just a picture from the internet, i should've looked more carefully at it.
@wolfpatrol3187 жыл бұрын
yeah i had to look at it twice to make sure i wasn't seeing things.
@matrixate6 жыл бұрын
As the old saying goes..."you get what you pay for." No offense Dave...just being real because I'm sure you'd say the same thing if the tables were turned and being an instructor, you've said it and thought many times.
@SeanChay5 жыл бұрын
You're observant
@samsara19985 жыл бұрын
Phew...glad its not just me that spotted the Major 7th Mix up !
@boltondowney19496 жыл бұрын
I have a test tomorrow and you helped a lot.
@voidisyinyangvoidisyinyang8852 жыл бұрын
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...
@abbyimmanuel28266 жыл бұрын
thanks Prof Dave! this really helped
@laurenceschaefer2034 жыл бұрын
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?
@dadamote37493 жыл бұрын
Sir these short vedios are quite amazing and helpful too. The way you deliver the content is unique in itself. Thankyou Sir.
@incredibleravana29454 жыл бұрын
Thanks professor Dave that’s totally helpful for me
@matthewbeck684710 ай бұрын
If a guitar string is a standing wave, with no oscillations at the boundaries, why does changing the tension change the pitch?
@emmanuelsserugendo973 жыл бұрын
You're so amazing professor
@nitinbansal59275 жыл бұрын
Sir , you look like a ranveer kappoor, (who is indian actor). And you teach excellent
@nitinbansal59275 жыл бұрын
Kapoor
@KarlMiller-DjKarl4 жыл бұрын
Fascinating that combined standing waves at constant intervals produce perfect tones in music... Thanks professor Dave... ☮🔥
@drzirkle7 жыл бұрын
Excellent video! Thanks, I'm going to link here for my students!
@sea52055 жыл бұрын
One of the best channels!
@MountainHomeJerrel2 жыл бұрын
Awesome. Thank you for the great video. This is very clear and well presented.
@KYCDK Жыл бұрын
I can tell these are gonna save me for revision
@tysondavid68732 жыл бұрын
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
@Sr.Dusty-Leon008-da-III3 жыл бұрын
thank you very much this helped me a lot while reading my book
@harshaanandh84272 жыл бұрын
Lots of love from india sir❤️ Clear explanation..
@MrZagorefrigeracion Жыл бұрын
You are good explaining !!Congratulations
@rs-tarxvfz4 жыл бұрын
Why can't we have *Transcendental multiples* of Fundamental frequency? And what are some systems that exhibit Non-harmonic behavior?
@carultch3 жыл бұрын
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.
@techspectre36093 ай бұрын
if u rlly think about it waves are energy. energy shapes our reality. so waves shapes our reality
@anisanurmalinda40453 жыл бұрын
i love the music for checking comprehensions
@davidogbija58068 ай бұрын
Great job done professor Dave🎉
@jesushernandez-gw2qj5 жыл бұрын
thanks as always, your videos are always helpful.
@avijitkumar56012 жыл бұрын
It was easy after learning this ... Thank you prof.😃
@hafsahbokhari14736 жыл бұрын
I have an upcoming exam thanks alot professor Dave
@abdulgafoor70762 жыл бұрын
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 ??
@carultch2 жыл бұрын
Yes. That is how you can tell the difference between a human voice and a pure sine wave, both with the same frequency.
@bryana2016 жыл бұрын
such as flavor/color change and spin
@jafool3518 Жыл бұрын
even when within the depths of A-Level physics revision GCSE music still finds a way to haunt me
@mohmad28223 жыл бұрын
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 ??
@marcopilati74646 жыл бұрын
great lesson. Thanks
@fredashay2 жыл бұрын
Wait! Why is a third harmonic called a fifth, not a third??? What is it 1/5 of???
@Khwartz7 жыл бұрын
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 :)
@drriazkhan8134 жыл бұрын
Outstanding sir
@physicslab57873 жыл бұрын
Nice explanation
@dakshmalviya37293 жыл бұрын
Its great to see Ranbir kapoor teaching physics.. keep it up bro..👍
@gurmeensaini_3 жыл бұрын
Yaa i also think same
@chemistryvoice9814 жыл бұрын
Thank you professor
@AyushSingh-nz4ei5 жыл бұрын
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👍👌💯💯😊😊😊😘
@stanfordkoga-zs9nh10 ай бұрын
Thank you
@gurmeensaini_3 жыл бұрын
Nice explaination. Respect from Punjab india. 🙏☺
@spazzmonster5 жыл бұрын
Great video. Many thanks.
@johnroberts75294 жыл бұрын
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.
@carultch2 жыл бұрын
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
@bryana2016 жыл бұрын
can this relate to the spin of subatomic physics ?
@morpher442 жыл бұрын
what about PHI ratio harmonics?
@adityaa89184 жыл бұрын
I am your fan
@asheriff924 жыл бұрын
do you have a transcription of this video? I would benefit from a text version to read. Thanks for making!
@asheriff924 жыл бұрын
Also, do any of your lessons cover traveling waves?
@Dontbeanigga7 ай бұрын
I luv the intro tooo much😂😂🎉❤
@kiradownoumbeanderson3335 Жыл бұрын
thanks so much
@heythere75316 жыл бұрын
Comprehensive explaination
@vynderma2 жыл бұрын
If higher frequency means more energy, why are overtones not as loud as the fundamental frequency?
@carultch2 жыл бұрын
For an unchanged amplitude, a higher frequency means more energy. Overtones have significantly less amplitude than the fundamental frequency.
@thembelihlezuma26315 жыл бұрын
Thxz a lot prof
@diyakasaragod11526 жыл бұрын
nice presentation:)
@sagayamr28425 жыл бұрын
Cool he is!
@patphillips3402 Жыл бұрын
lol just trying to learn to play harmonics and got my mind blown 🤯
@slomljenaploca6 ай бұрын
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?
@alwaysy51783 жыл бұрын
Why are light and matter standing waves
@DC-do5wz6 жыл бұрын
upload video on Doppler effect
@valentinabeltran22295 жыл бұрын
reaaaally good!
@jlpsinde5 жыл бұрын
Very good!
@neverendingjourneystilllea52718 ай бұрын
Thanks
@abenezertileye60973 жыл бұрын
Dude u r a life saver
@techspectre36093 ай бұрын
as a music producer this was interesting
@giorgixyz19093 жыл бұрын
this is amazing
@unixxofficial39684 жыл бұрын
Can someone direct me to a video that explains how multiple harmonics/standing waves can exist simultaneously on a string....thanks
@bhaswardutta84934 жыл бұрын
Did not understand your question.....
@brd87642 жыл бұрын
Standing & 4th harmonic is physics like we can listen in.
@alexrichardson59915 жыл бұрын
Awesome!
@davidcedeno84032 жыл бұрын
I came here for fire EQ techniques and left with a lesson on Quantum Physics lol