My physics grade was D before I started watching your videos and it changed to A* after watching your videos (not even exaggerating) so I thought I might thank you for posting them and helping me with this subject. You made physics x1000 more interesting and i'm extremely grateful for that. Thank you again.
+Doc Schuster Haha thanks, you're an inspiration; however, I've had two years of physics, and I'd like to, er, not "get back on the boat" my senior year :)
Why is it that learning physics from a random happy man on YT just makes so much more sense to my brain than learning it from my teacher in skl? Like yall can say the exact same thing ,but my brain refuses to understand it unless its not coming from my teacher , Only here!!! Some thing we will never know.... 😂 But honestly, good work Doc Schuster, I understand this thing that I had been struggling with for a week in 7 minutes flat ! Cheers
Clarinets definitely follow the rule of the half-open tubes. That's why when we play overtones we can only get the odd numbered partials (1,3,5,7... / unison, octave+fifth, double-octave+third, double-octave+seventh...)
Aha, new video. And I like it. I even agree with an important part of it: the part about the dollar. The rest: well, I'm going to try to restore some of the confusion you just cleared up. I hope you like that ;+) Recently I was inspired by a video about the weirdness of quantum mechanics (I don't remember exactly which video, but it had cute kids in it), and I spent some fun time looking at propagation of wave packets in various situations, and building them from eigenstates of the Hamiltonian. There is no mistake or confusion: the ground state of a harmonic oscillator has n=0. If anything should be called a 'fundamental' this is it. Classically it corresponds to standing still. I find this fundamental nature of standing still very Zen and very beautiful. The excited states have n=1, 2, 3..... One can call them 'harmonics' or 'overtones', but I don't really like to put too much significance into the exact use of these words (because words have overtones, so to speak). Which excited states contribute in a given practical situation depends on the specifics of that situation. In my game of wave packets, it's the initial state that determines how much, if anything, an eigenstate contributes. In your examples of standing waves in musical instruments it is a combination of the boundary conditions and the excitation (which you did not stress, but matters, as I can hit a string or blow into a pipe at a node of a particular harmonic, causing it to remain silent). Deep down I don't like boundary conditions. They are just a lazy way of eliminating some interactions from your analysis. And their validity is often doubtful. Have you thought about what really happens at the open end of a clarinet? Is it really right to impose the 'free' condition exactly at the end of the curved taper of this tube, and not a few mm further out or in? Why? It's far from obvious to me. How 'free' is this oscillating gas actually? What if I consider a marine horn under water? Still free at an open end? A horn in mud? Surely not. Somewhere on the viscosity scale the inappropriateness of the free boundary condition should become apparent. What happens at the other end of the clarinet, at the reed and the player's mouth? Is that really a closed end? If a put a tiny microphone there on the outside of the instrument no sound is detected coming from the mouthpiece? Do you believe it? (BTW I think it is the great lord Feynman himself who teaches in vol. 2 of his Lectures that we ought to develop boundary conditions by looking at what really happens in a finite region and only then take its limit to a mathematical boundary of zero thickness.) So I would prefer not to build the boundary conditions into our very definitions of 'harmonics' or 'overtones'. It is better to simply count the 'modes' as multiples of the basic frequency (which is not the frequency of the 'fundamental' because that corresponds to the zero multiple of the Zen state). And then for any given situation (=instrument + excitation) find out which ones contribute significantly. In a half open pipe the even modes are usually absent, for example. No changing of words or numbering is needed for different situations. I promised to restore confusion, but so far I have done the exact opposite. So here goes. We must let go of this idea of frequency multiples. The eigenmode spectrum of a musical instrument (such as my washing machine, which has several dominant modes of oscillation) is often not spread equally. Piano strings have stiffness. If you open the lid of your great piano and look closely you cannot see the quartic term in the potential, but trust me, it's there. Ask composers and professional musicians about how to make an instrument sound awful, and they can instantly tell you how to excite a combination of eigenmodes so that the mismatch from perfect harmonics i unmistakable. In summary: the 'fundamental' should be defined differently (to allow the connection with quantum mechanics), the 'harmonics' should not be defined according to a particular instrument, the boundary conditions should not be part of any definition but instead be object of physical analysis, and the assumption of frequency multiples should be rejected as a general framework. I do agree that retrieving a dollar from your pocket is a good thing. :-)
I came here looking for a physical explanation about how Avi Kaplan sings "lion sleeps tonight" in overtones. I still don't understand it! Does this have anything to do with that?
What you are calling a harmonic is not. Twice the wavelength is an octave. A harmonic would be a perfect 5th or perfect fourth or third. Harmonic is a complimenting note. You should look into musical Theory and you would actually understand what a harmonic really is. Most physicists use the word harmonic as a universal term but it is completely incorrect.
Atomic physics and calculus are studying the same thing, in atomic physics electrons orbit. So do planets, electrons change their spin, planets go retrograde. Now if we imagine spokes radiating from the nucleas and connect the ends to the orbiting electrons they mimic planetary motion. And therefore can be measured with calculus. The changing of the color within the nucleas would simply be wave interference raising and lowering the wavelength of the nodes we call quarks. Am I going too fast for you?
Any musician here? I'm trying to understand this but I'm very bad at math and physics and I need to understand how it works in music. I know overtones and their loudness gives certain instrument certain timbre. But what I don't understand is what is the difference between overtone and semitone. And also can be overtone found and noted in music notation? Do these overtones have other purposes than just giving an instrument a certain timbre? I'm very confused as you can see. Please don't laugh at me.
I have a question. When overtones are amplified to become very obvious, like in Mongolian throat singing, is the physical process that does that at all comparable to the refraction of light into different 'colours'? I know light refraction is about density of medium and about Fermat's 'least time' principle, which probably has nothing to do with the production of overtones which is probably more about creating sympathetic resonance with the overtones you want to amplify. But my question is more if it could be used as a metaphor. Like if a Mongolian throat singing band wanted to name itself Refraction, would that be a stupid metaphor, or would it kinda work?
Great videos. Question: in the previous video with one closed end we described the LAMBDAn=4L/2n-1.....which is what is shown in this video (ie LAMBDA=4/3*L) yet you state it is the THIRD harmonic i guess i'm missing the difference that drives this. THanks
In terms of music; you are totally incorrect. An overtone is heard above the fundamental and occurring simultaneously with the fundamental. A harmonic is a single tone. Anton Vivaldi perfected the method of polyphonic singing in which both tones are heard simultaneously. Mathematics has pretty much obscured this technique that originated in the ancient world.
teaching and proving that you know something is very different.. slow down becox ppl watching this might not be as familiar with it as you.. thanks tho
So.... Harmonics have overtones. A pure tone has no harmonics, therefore it has no overtones. Also, a pure torn has not overtones, therefor it has no harmonics. The tone we all could stand hearing from eternity is a pure tone. Therefore, the perfect tone is the pure tone.
Hi! Could you please help me to sole the following problem? 3. A spring and mass system with a mass of 2.5 kg is observed to have a frequency of 5.5 Hz. What is the stiffness constant of the spring? Thank You.
convert frequency into time period by taking reciprocal of frequency then use the formula of time period for linear shm to get the value of k. T= 2pie root over m/k
Terrible. No wonder school was so hard. You just used French to explain Spanish. While that explanation might be true its totally mealiness to someone that only speaks English. Try this from now on. Look for a common ground and expand upon that.
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I cared about the dollar... I wanted to see that :(
Haha! Me too xD
Ha!
He he he!
Me too
Yep me also
My physics grade was D before I started watching your videos and it changed to A* after watching your videos (not even exaggerating) so I thought I might thank you for posting them and helping me with this subject. You made physics x1000 more interesting and i'm extremely grateful for that. Thank you again.
Alaa Roshdy
Same with me,
Mine is a transistion probably from C grade to A-ish right now, in a space of around 5-6 months
Vive La DocSchuster
my physics grade is a D right now, wish me luck 😭😭😭
Of course I discover this guy a day before my physics voyage ends.
GET BACK ON THE BOAT!
+Doc Schuster Haha thanks, you're an inspiration; however, I've had two years of physics, and I'd like to, er, not "get back on the boat" my senior year :)
Why is it that learning physics from a random happy man on YT just makes so much more sense to my brain than learning it from my teacher in skl? Like yall can say the exact same thing ,but my brain refuses to understand it unless its not coming from my teacher , Only here!!! Some thing we will never know.... 😂
But honestly, good work Doc Schuster, I understand this thing that I had been struggling with for a week in 7 minutes flat ! Cheers
You are hilarious! I wish I had a physics teacher like you
I can hear the passion burning in the voice. Wonderful video, earned my like instantly as soon as I heard the introduction.
This guy really rocks, his teaching methods are hilarious sumtyms, wish I had a teacher lyk him :(
Really?? =D whats queer about the way I type?? Hahahaahha relax Jihad Bunnydick I dont mean anything wrong =P
Came for music, got a physics lesson. Like button smashed.
Daniel Johnson
Same
Any good videos on harmony though
Love the energy man. Youve made me enjoy and learn as well. A gift only some have. :')
Clarinets definitely follow the rule of the half-open tubes. That's why when we play overtones we can only get the odd numbered partials (1,3,5,7... / unison, octave+fifth, double-octave+third, double-octave+seventh...)
James Schader Awesome! That's just what I needed to understand.
I wish I had a teacher like this
Aha, new video. And I like it. I even agree with an important part of it: the part about the dollar. The rest: well, I'm going to try to restore some of the confusion you just cleared up. I hope you like that ;+)
Recently I was inspired by a video about the weirdness of quantum mechanics (I don't remember exactly which video, but it had cute kids in it), and I spent some fun time looking at propagation of wave packets in various situations, and building them from eigenstates of the Hamiltonian. There is no mistake or confusion: the ground state of a harmonic oscillator has n=0. If anything should be called a 'fundamental' this is it. Classically it corresponds to standing still. I find this fundamental nature of standing still very Zen and very beautiful.
The excited states have n=1, 2, 3..... One can call them 'harmonics' or 'overtones', but I don't really like to put too much significance into the exact use of these words (because words have overtones, so to speak).
Which excited states contribute in a given practical situation depends on the specifics of that situation. In my game of wave packets, it's the initial state that determines how much, if anything, an eigenstate contributes. In your examples of standing waves in musical instruments it is a combination of the boundary conditions and the excitation (which you did not stress, but matters, as I can hit a string or blow into a pipe at a node of a particular harmonic, causing it to remain silent).
Deep down I don't like boundary conditions. They are just a lazy way of eliminating some interactions from your analysis. And their validity is often doubtful. Have you thought about what really happens at the open end of a clarinet? Is it really right to impose the 'free' condition exactly at the end of the curved taper of this tube, and not a few mm further out or in? Why? It's far from obvious to me. How 'free' is this oscillating gas actually? What if I consider a marine horn under water? Still free at an open end? A horn in mud? Surely not. Somewhere on the viscosity scale the inappropriateness of the free boundary condition should become apparent. What happens at the other end of the clarinet, at the reed and the player's mouth? Is that really a closed end? If a put a tiny microphone there on the outside of the instrument no sound is detected coming from the mouthpiece? Do you believe it? (BTW I think it is the great lord Feynman himself who teaches in vol. 2 of his Lectures that we ought to develop boundary conditions by looking at what really happens in a finite region and only then take its limit to a mathematical boundary of zero thickness.)
So I would prefer not to build the boundary conditions into our very definitions of 'harmonics' or 'overtones'. It is better to simply count the 'modes' as multiples of the basic frequency (which is not the frequency of the 'fundamental' because that corresponds to the zero multiple of the Zen state). And then for any given situation (=instrument + excitation) find out which ones contribute significantly. In a half open pipe the even modes are usually absent, for example. No changing of words or numbering is needed for different situations.
I promised to restore confusion, but so far I have done the exact opposite. So here goes. We must let go of this idea of frequency multiples. The eigenmode spectrum of a musical instrument (such as my washing machine, which has several dominant modes of oscillation) is often not spread equally. Piano strings have stiffness. If you open the lid of your great piano and look closely you cannot see the quartic term in the potential, but trust me, it's there. Ask composers and professional musicians about how to make an instrument sound awful, and they can instantly tell you how to excite a combination of eigenmodes so that the mismatch from perfect harmonics i unmistakable.
In summary: the 'fundamental' should be defined differently (to allow the connection with quantum mechanics), the 'harmonics' should not be defined according to a particular instrument, the boundary conditions should not be part of any definition but instead be object of physical analysis, and the assumption of frequency multiples should be rejected as a general framework. I do agree that retrieving a dollar from your pocket is a good thing.
:-)
doc .. thank u dude .. I've started njoying physics jusg because of h .. u r the coolest physics teacher ever !!!!
just*
Thank you for these videos, they are very useful and I find much value in them.
Thanks, man! Keep rocking!
Very interesting!
Doc, you make me feel like a physician!
loved your explanation!
Helping me after 8 yrs
Best explaination ever, even my teacher doesn't explained this properly.
Thanks sir!! 😁
the sound u r creating in between is obvious and making me think we are friends :)
I came here looking for a physical explanation about how Avi Kaplan sings "lion sleeps tonight" in overtones. I still don't understand it! Does this have anything to do with that?
Love from India 💗
Finally found a new way to explain overtones on violin. I bey my students will like it.
Nice video keep it up... Love from India
I'm here to learn some music stuff but ended up being the next Einstein.
Thank you for your information ☺️☺️
One of the best video i had ever understood it's great
NICE SUPER EXCELLENT MOTIVATED
What you are calling a harmonic is not. Twice the wavelength is an octave. A harmonic would be a perfect 5th or perfect fourth or third. Harmonic is a complimenting note. You should look into musical Theory and you would actually understand what a harmonic really is. Most physicists use the word harmonic as a universal term but it is completely incorrect.
finally it's cleared now
love from india
Your going to deeply so it is very interesting thank you very much to. Making this video
That's really nice
Atomic physics and calculus are studying the same thing, in atomic physics electrons orbit. So do planets, electrons change their spin, planets go retrograde. Now if we imagine spokes radiating from the nucleas and connect the ends to the orbiting electrons they mimic planetary motion. And therefore can be measured with calculus. The changing of the color within the nucleas would simply be wave interference raising and lowering the wavelength of the nodes we call quarks. Am I going too fast for you?
Oh god!!! You are terrific 😂😂
Loved the way you explained
This is amazing
Thanks alot, this has been very confusing for me
I wish I had 1% of this guy's energy 😂 looks like he is coked up on life
Well explained sir...💯😊👍
"The intersection of physics and music is a wonderful one" - Oh yeah!!
so is:
Harmonic overtone singing
Any musician here? I'm trying to understand this but I'm very bad at math and physics and I need to understand how it works in music. I know overtones and their loudness gives certain instrument certain timbre. But what I don't understand is what is the difference between overtone and semitone. And also can be overtone found and noted in music notation? Do these overtones have other purposes than just giving an instrument a certain timbre? I'm very confused as you can see. Please don't laugh at me.
Excellent
Thank you sir..
I have a question. When overtones are amplified to become very obvious, like in Mongolian throat singing, is the physical process that does that at all comparable to the refraction of light into different 'colours'? I know light refraction is about density of medium and about Fermat's 'least time' principle, which probably has nothing to do with the production of overtones which is probably more about creating sympathetic resonance with the overtones you want to amplify. But my question is more if it could be used as a metaphor. Like if a Mongolian throat singing band wanted to name itself Refraction, would that be a stupid metaphor, or would it kinda work?
Thankyou so much
Where is the second video?
Great videos. Question: in the previous video with one closed end we described the LAMBDAn=4L/2n-1.....which is what is shown in this video (ie LAMBDA=4/3*L)
yet you state it is the THIRD harmonic i guess i'm missing the difference that drives this. THanks
In terms of music; you are totally incorrect. An overtone is heard above the fundamental and occurring simultaneously with the fundamental. A harmonic is a single tone. Anton Vivaldi perfected the method of polyphonic singing in which both tones are heard simultaneously. Mathematics has pretty much obscured this technique that originated in the ancient world.
teaching and proving that you know something is very different.. slow down becox ppl watching this might not be as familiar with it as you.. thanks tho
can you post the link for the next video
freewalkk It appears in the upper-right of my browser window. Are you on your phone? Best bet may be to navigate via playlists.
Doc Schuster is it standing wave harmonics in half closed pipes?
freewalkk Yeah! Does it not flow well?
hey bro i didnt get it please be a little slow in next video with ur language its little difficult to get it
PRASHANT RAWAT You can slow the speed of the video down on TH-cam. Click the settings gear on lower right corner of the video.
sounds like Ryan Reynolds talking physics !! XD
the guy is on something, isn't he?
Good explanation sir
THANK YOU!!!!!! Do you also have videos about diffraction?
Emile Heskey You bet!
Thankyou very much for this :)
Thanks
You rock n roll sir love you
damn i love ur energy
Good
So.... Harmonics have overtones. A pure tone has no harmonics, therefore it has no overtones. Also, a pure torn has not overtones, therefor it has no harmonics. The tone we all could stand hearing from eternity is a pure tone. Therefore, the perfect tone is the pure tone.
where is 2 harmonic then
lol it hurted me when he tore the page down
Hi! Could you please help me to sole the following problem? 3. A spring and mass system with a mass of 2.5 kg is observed to have a frequency of 5.5 Hz. What is the stiffness constant of the spring? Thank You.
121pie sqr
convert frequency into time period by taking reciprocal of frequency then use the formula of time period for linear shm to get the value of k. T= 2pie root over m/k
What's kinds of music do you listen to?
Zi Gyllenhaal I like just about everything except pop aimed at twelve-year-olds and modern country. You?
I'm into indie rock electro kind of thing. Thanks for asking!!
Bhai ki padai actually copies this
Daouuun aen up aen daouun aen up aen daounn
subscribed
I still care
2:38 u remind me of Mr bean
do these videos cover the topics in the IB Higher level physics syllabus?
Al Yessa Not by design. If I'm missing something, please let me know. I have an index website that will help you see what I've done so far.
Al Yessa Considering what we've done in class, I'd say mostly. Then again, "mostly" applies to the textbooks as well...
thanks. i checked it against my syllabus and it covers everything essential actually
Shouldnget a whiteboard
02:36 lmfao
i care that you found a coin in your pocket :')
Op
we want the easist way to understand....not the hardest......hated this😖😖😖
Terrible. No wonder school was so hard. You just used French to explain Spanish. While that explanation might be true its totally mealiness to someone that only speaks English. Try this from now on. Look for a common ground and expand upon that.
honestly im lost. dont get a shit
why not focus on what you are teaching, other than making sily noise
#nice one
Bruh relax
I don't think he knows what he's talking about
hope i 'd never prefer to watch your next video man... it was not soooo cooooool at all...
No one cares...😂😂
False
This un understandale by indians
dint make such noises pls boom boom not funny but Annoying
2:38 u remind me of Mr bean
we want the easist way to understand....not the hardest......hated this😖😖😖