The visuals and the script always come together for a really edifying experience. One of my favorite YT channels, and one of the oldest in the biz. Thanks!
blu_tetris, I am so drawn to physics I know it's probably DNA or something in my family science and spirituality are the things I love most I'm an older woman but find science and physics especially interesting. The illustration should have been enough for me to understand but something flew over my head.
I used to tune my guitar using beat frequencies before tuning devices/apps. I didn't like tuning forks and they weren't cheap, then, either. For example: on the E6 string if you play the A note (on the 5th fret) and the open A5 string below it, when the two notes played together are close, you can hear the beats. The closer to each other, the fewer beats and the longer they get. When they get further apart the beats get shorter and faster. The only caveat is you have to establish standard (A440/432 -- take your pick) and then tune everything to it. Musicians know this but for non musicians: FYI.
yes this and the flagolet tuning for even more precision. This is as far as a mortal ear can go. I personally think that too tight of a tuning makes the instument sound dead, so tuning by ear is ok to me. But electronic tuner still have a place. On stage with all the noise it is impossible to tune by ear.
This explanation is gold just like this channel. These 2 innocent arrows labeled imaginery and real finally helped me understand why complex numbers are part of the fourier equation. I've watched so many animations and fiddled with plenty of tools that attempt to explain fourier and they all miss the point of explaining the why when it comes to complex numbers. This video explained the why without even attempting or even uttering the word complex. 👏🏼
A video of yours where I actually felt like I already knew what was happening lol. Extra bit for my music friends: this is exactly how a flanger works. It doubles the track and slows one down very slightly, leaving a very cool whirling kind of sound.
To be honest I have only read about the beat frequency in a mug up way or never try to contemplate over it in a rigorous manner. But your video has utterly makeover the whole scenario regarding this topic and propel me to cerebrate over this tantalising topic with a utter new perception. 😀😀😀😀
I always love your videos and explanations! On this one, I was hoping to see the two arrows placed nose to tail like vector addition, so we could see where the sum of the wave comes from. Still, very clear! Keep up the great work!
This channel is incredible! How did you actually come across learning all of these concepts and to such degrees? Are you a professor? Also, you should make a video on trying to explain the mandelbrot set and why things grow complex over time. I don't believe actually there is an explanation but hey literally every concept in physics is just a theory that gets built upon or sometimes completely changed. Someone with your mind of physics could probably make a damn good theory closer than probably any explanation we have.
Thank you! I'm a high school student. I didn't actually comprehend how beat frequency occurs tho I passed the chapter of Waves and optics just by using the formulae prescribed in the textbook syllabus of government.
That was mind blowing video. My mentor! Your outstanding video on Bernoulli's principle was literally jaw-dropping for me and also every person that ever happened to go through the counter intuitive concept of fluid mechanics. Finally I visually know how the static pressure becomes low when diameter of pipe is small and vice versa. But This was the case of inside flow. These same visualizations can't be applied to understand outside flows. I am not taking about a pipe around which the fluid is flowing. Rather I am referring to the case in which the air is stationary ( i.e., no wind is blowing ) & the train is moving through the air at great speeds. This is easy to grasp that the air pressure on the front of the train will increase and decrease on the backside of train, but the thing which is very counter-intuitive is that the static pressure on the sides of the train decreases. What is causing the static pressure to decrease in the lateral direction of motion of the train? According to the prospective of an outside observer the momentum of air molecules in the x-direction and y-direction (along the plane parallel to the surface of the earth) are equal to each other. So everytime molecules are striking on the sides of the train with same momentum. So the pressure should remain same instead of dropping. The inside observer should also see the pressure on the train sides to be same rather than decreasing. But this doesn't happen in reality. Why?
Waiting for a video on control system. Why we use laplace transform for analysing stability and why we put s=jw and not sigma+jw for analysing frequency response.
I have several videos on control systems, including one on Laplace Transforms. The links are below. Laplace Transform -- czcams.com/video/6MXMDrs6ZmA/video.html Convolution -- czcams.com/video/acAw5WGtzuk/video.html State Space Stability Analysis -- czcams.com/video/p9qrHdPEe28/video.html
I have an unrelated question. Does electrons wave function (aka electron clouds) actually orbit the nucleus.Or the complex number for wave function for a given point remains the same. (What im asking is if we paint the space with colored dots(color meaning the complex value's angle and density of dots meaning the absolute value ) would the entire shape rotate around the nucleus).Thanks
I already have several videos on the subatomic world. Examples are listed below. Strong Nuclear Force -- czcams.com/video/FoR3hq5b5yE/video.html Weak Nuclear Force -- czcams.com/video/iIWTRwJlrGo/video.html Nuclear Physics -- czcams.com/video/r40h66qiF5I/video.html
I am absolutely fascinated with the sound frequencies and I like to understand them better. In my tests I realized that it is not possible to join (combine) two or more waveforms mathematically without completely changing the sound result (what is heard), but if I emit the two waves in different outputs and join the wires that are emitting then I can hear both at the same time perfectly. I would like to understand what I'm doing wrong, if there is a proper formula to calulate this, can you help me? Thanks for the videos, I'm always following you!
Maybe these videos from 3B1B will be of interest: czcams.com/video/cyW5z-M2yzw/video.html&ab_channel=3Blue1Brown czcams.com/video/spUNpyF58BY/video.html&ab_channel=3Blue1Brown
The inner ear has a lot of small hairs of different lengths. If the incoming sound has a frequency component that matches the resonant frequency of a certain hair, that hair will vibrate. Those vibrations are picked up by nerve cells and sent to the brain. It's a physical equivalent of a Fourier transform.
Your eardrums are very thin and can vibrate in a broad spectrum of frequencies. And they can vibrate with many frequencies at the same time. Have you seen the waves of the sea on a windy day? You can tell different waves and perhaps, their origin (swell, nearby motor boats, the small ripples of the wind...). Little muscles tighten your eardrums and allow a rough selection of frequencies; that way you can listen to a specific person in a very noisy room. The brain does the rest.
Does it really affects brain? Cuz I used binaural beats for so long, nothing happened. Is there any practical use of binaural beats or isochronic tunes?
If very high frequencies such as in wireless communications where a difference in such frequencies may exist, might a lower and audible frequency be produced thereby giving rise to a condition similar to that of so-called tinnitus?
@@peanutjam If according to the Mayo Clinic under Tinnitus Symptoms and Causes, "the noise you hear when you have tinnitus isn't caused by an external sound..", then oscillating air may not be a necessary constituent of the condition described as tinnitis and therefore EMF may not be ruled out as a possible cause.
Hey Eugene, would you be able to make a video related to the recent Nobel Prize disproving hidden variables and its affect on the interpretations of quantum mechanics? Thanks!
If you play two frequencies with a difference of 4 you'll hear a beat frequency of 4hz and the same thing for every other difference. The lower the difference, the lower the beat frequency
Okay I love physics without truly understanding why and I understand it in general ways what do I need to learn first so I can comprehend what you just shared. Physics science and spirituality are the subjects I love most I know a lot about spirituality not enough about physics
I have a little question: Imagine if there were two pianos in the same room. Why if I play the middle C in both pianos the sound is always a sum? Shouldn't there be some time interval where the C of the first piano is out of phase from the C of the other resulting in no sound? Maybe because the source is different and the sound might cancel only locally in some areas.
I wanted to know this too. In addition, what if I play a C and a D together on a piano? I don't hear a beat frequency, is it because the sound attenuates naturally such that it becomes too difficult to hear? If I had 2 flutes one playing a C and one playing a D would I hear the beat frequency?
It is better to have continuous source of sound rather than a damp (pluck). For two Cs, you will not hear beats. If you play the two Cs at exactly the same time, with an accuracy of 512th of a second, you will produce constructive interference in the waves, resulting in higher amplitude. Makes it sound louder. If you want to cancel the waves out, you have to match the crest of one wave with trough of the other wave (with an accuracy of 512th of a second). However, this does NOT produce silence totally - only in certain areas in space because it depends on distance. In simpler words, check "Double Slit experiment"
I guess Double slit experiment is what you are looking for. however, remember that you have 2 EARS. Which means, you hear sounds from two different areas in space. If you had only one ear, maybe you could position your ear in area where the waves cancel out.
I am glad you like my videos. Sorry, I don't have any job openings and I don't believe I will ever hire anyone. I make all the animations myself and I have a friend who does the narration. By the way, my email can be found on the "about" tab of my CZcams home page if you are viewing it on a PC. Thanks.
I will add that to my list of topics for future videos. But, I already have a video titled "Electric Potential: Visualizing Voltage" at czcams.com/video/-Rb9guSEeVE/video.html
Why describe such dinamic over complex plane? Is there any special need? The first (linear) graphic do not refer to imaginary. Why to use it in the circular format?
But it's not really a beat it's artificial , So kool i could be wrong because you Can cut Through Stone with it.When these frequency come together They form Light?💡just like me and AI.
I’m always telling people this is the best channel on CZcams to really understand physics concepts without having to go to school for it.
Thanks!
@@EugeneKhutoryansky
What programs can I use this type of video tutorial?
The visuals and the script always come together for a really edifying experience. One of my favorite YT channels, and one of the oldest in the biz. Thanks!
Thanks for the compliments.
blu_tetris, I am so drawn to physics I know it's probably DNA or something in my family science and spirituality are the things I love most I'm an older woman but find science and physics especially interesting. The illustration should have been enough for me to understand but something flew over my head.
I knew beat frequencies. But today, I understood why we subtract to get beat
Huh?
Umm well education is kinda trash nowadays
Same
I love how you visualize difficult concepts to make them understandable...
Thanks for the compliment.
I have nothing but praise for this channel. Direct to the point concepts that are not over explained yet also shows you the concept from every angle.
Thanks for the compliments.
I used to tune my guitar using beat frequencies before tuning devices/apps. I didn't like tuning forks and they weren't cheap, then, either. For example: on the E6 string if you play the A note (on the 5th fret) and the open A5 string below it, when the two notes played together are close, you can hear the beats. The closer to each other, the fewer beats and the longer they get. When they get further apart the beats get shorter and faster. The only caveat is you have to establish standard (A440/432 -- take your pick) and then tune everything to it. Musicians know this but for non musicians: FYI.
yes this and the flagolet tuning for even more precision. This is as far as a mortal ear can go.
I personally think that too tight of a tuning makes the instument sound dead, so tuning by ear is ok to me. But electronic tuner still have a place. On stage with all the noise it is impossible to tune by ear.
How cleverly explained: Waves start at the same time. Thanks bro.
You taught me how to think. Good Stuff. Never stop exploring.
Thanks.
Love it! Should do a video on Local Gauge Symmetry and forces next.
That is on my list of topics for future videos. Thanks.
This explanation is gold just like this channel. These 2 innocent arrows labeled imaginery and real finally helped me understand why complex numbers are part of the fourier equation. I've watched so many animations and fiddled with plenty of tools that attempt to explain fourier and they all miss the point of explaining the why when it comes to complex numbers. This video explained the why without even attempting or even uttering the word complex. 👏🏼
I am glad you liked my explanation. Thanks for the compliments.
This is not a channel, but a real treasure💐❤️
Thanks for the compliment.
A video of yours where I actually felt like I already knew what was happening lol.
Extra bit for my music friends: this is exactly how a flanger works. It doubles the track and slows one down very slightly, leaving a very cool whirling kind of sound.
> _"A video of yours where I actually felt like I already knew what was happening lol. '_
yeah lol
Outstanding video, my concepts of beat are now thoroughly clear. Thanks
Thanks for the compliment about my video. I am glad it was helpful.
Fabulously clear video. Thanks
Thanks. I am glad you liked my video.
I can watch this channel on repeat nonstop
I am glad you like my videos.
Good visualization for a seemingly simple idea that is really complicated.
Thanks.
To be honest I have only read about the beat frequency in a mug up way or never try to contemplate over it in a rigorous manner. But your video has utterly makeover the whole scenario regarding this topic and propel me to cerebrate over this tantalising topic with a utter new perception. 😀😀😀😀
Thanks.
Fantastic explanation with great animation.
Thanks for the compliment.
Very interesting visualization👍
Thanks.
Неймовірний канал, неперевершена робота!❤
👍good visualisation! Thanks a lot, for you education work😊☺
Thanks.
thank you so much, i was just looking into this.
Thanks.
too good..thanks for this great animation and explanation!
Thanks!
I always love your videos and explanations! On this one, I was hoping to see the two arrows placed nose to tail like vector addition, so we could see where the sum of the wave comes from. Still, very clear! Keep up the great work!
Thanks. I showed the "nose to tail" version of this in my video on Fourier Transform at czcams.com/video/r18Gi8lSkfM/video.html
Thank you very much!very intuitive
Thanks.
Thankyou for making everything easy
Thanks.
Thanks for this cool lecture! I wish I knew this channel in 1981 when I studied beat frequency osc's & detectors.
Thanks.
This channel is incredible! How did you actually come across learning all of these concepts and to such degrees? Are you a professor? Also, you should make a video on trying to explain the mandelbrot set and why things grow complex over time. I don't believe actually there is an explanation but hey literally every concept in physics is just a theory that gets built upon or sometimes completely changed. Someone with your mind of physics could probably make a damn good theory closer than probably any explanation we have.
This is how I used to tune the strings of my guitar to each others when I didn't have a tone meter at hand. Very handy
Thanks for the informative video. This is something I've come across several times with music but never understood what caused it.
Thanks.
Thanks for this awesome video
A
I am glad you liked my video. Thanks.
So good thank you👍
Thanks. I am glad you liked my video.
Thank you! I'm a high school student. I didn't actually comprehend how beat frequency occurs tho I passed the chapter of Waves and optics just by using the formulae prescribed in the textbook syllabus of government.
Very exited to see your face 🤯💙
I will never show my face on this channel but there is a video of me on my vegan animal rights website at veg1.org/Animal_Rights.html
That was mind blowing video. My mentor! Your outstanding video on Bernoulli's principle was literally jaw-dropping for me and also every person that ever happened to go through the counter intuitive concept of fluid mechanics. Finally I visually know how the static pressure becomes low when diameter of pipe is small and vice versa. But This was the case of inside flow.
These same visualizations can't be applied to understand outside flows. I am not taking about a pipe around which the fluid is flowing. Rather I am referring to the case in which the air is stationary ( i.e., no wind is blowing ) & the train is moving through the air at great speeds. This is easy to grasp that the air pressure on the front of the train will increase and decrease on the backside of train, but the thing which is very counter-intuitive is that the static pressure on the sides of the train decreases. What is causing the static pressure to decrease in the lateral direction of motion of the train? According to the prospective of an outside observer the momentum of air molecules in the x-direction and y-direction (along the plane parallel to the surface of the earth) are equal to each other. So everytime molecules are striking on the sides of the train with same momentum. So the pressure should remain same instead of dropping. The inside observer should also see the pressure on the train sides to be same rather than decreasing. But this doesn't happen in reality. Why?
This is the same thing. If we think of the air as being incompressible, then we can think of the air far away as acting as the "walls."
i love you eugene!!!
Thanks.
Waiting for a video on control system.
Why we use laplace transform for analysing stability and why we put s=jw and not sigma+jw for analysing frequency response.
I have several videos on control systems, including one on Laplace Transforms. The links are below.
Laplace Transform -- czcams.com/video/6MXMDrs6ZmA/video.html
Convolution -- czcams.com/video/acAw5WGtzuk/video.html
State Space Stability Analysis -- czcams.com/video/p9qrHdPEe28/video.html
Amazing
Thanks
I have an unrelated question. Does electrons wave function (aka electron clouds) actually orbit the nucleus.Or the complex number for wave function for a given point remains the same. (What im asking is if we paint the space with colored dots(color meaning the complex value's angle and density of dots meaning the absolute value ) would the entire shape rotate around the nucleus).Thanks
Waiting for subatomic world videos with your extraordinary way of explaination.
I already have several videos on the subatomic world. Examples are listed below.
Strong Nuclear Force -- czcams.com/video/FoR3hq5b5yE/video.html
Weak Nuclear Force -- czcams.com/video/iIWTRwJlrGo/video.html
Nuclear Physics -- czcams.com/video/r40h66qiF5I/video.html
I am absolutely fascinated with the sound frequencies and I like to understand them better. In my tests I realized that it is not possible to join (combine) two or more waveforms mathematically without completely changing the sound result (what is heard), but if I emit the two waves in different outputs and join the wires that are emitting then I can hear both at the same time perfectly. I would like to understand what I'm doing wrong, if there is a proper formula to calulate this, can you help me? Thanks for the videos, I'm always following you!
Firstly, thank you for making these vids.
Can anyone recommend an English text book which has a chapter with worked examples on this topic?
This is how piano technicians tune the piano strings, they measure the rate of the beats between two vibrating strings
Nice!
Thanks!
Would this cause another spike in its fourier transform? great video
solid introduction to binaural beats
What happens if you add the beat frequency to the green pure frequency? Do you get the other blue pure frequency?
No wonder musical notes work so well
Great video 👍 This may not be physics, but: Can you explain how we hear all the different frequencies of a symphony orchestra at the same time.
Thanks. I am not sure what you are asking for. It sounds like this would be a video on how our brain processes sound.
Maybe these videos from 3B1B will be of interest:
czcams.com/video/cyW5z-M2yzw/video.html&ab_channel=3Blue1Brown
czcams.com/video/spUNpyF58BY/video.html&ab_channel=3Blue1Brown
The inner ear has a lot of small hairs of different lengths. If the incoming sound has a frequency component that matches the resonant frequency of a certain hair, that hair will vibrate. Those vibrations are picked up by nerve cells and sent to the brain. It's a physical equivalent of a Fourier transform.
Your eardrums are very thin and can vibrate in a broad spectrum of frequencies. And they can vibrate with many frequencies at the same time. Have you seen the waves of the sea on a windy day? You can tell different waves and perhaps, their origin (swell, nearby motor boats, the small ripples of the wind...). Little muscles tighten your eardrums and allow a rough selection of frequencies; that way you can listen to a specific person in a very noisy room. The brain does the rest.
Now I wonder what's the higher frequency of the wave which is the sum of the two. I mean how is it determined?
Does it really affects brain? Cuz I used binaural beats for so long, nothing happened. Is there any practical use of binaural beats or isochronic tunes?
If very high frequencies such as in wireless communications where a difference in such frequencies may exist, might a lower and audible frequency be produced thereby giving rise to a condition similar to that of so-called tinnitus?
Wireless communication doesn’t use the oscillation of air, so you won’t be able to hear it.
@@peanutjam If according to the Mayo Clinic under Tinnitus Symptoms and Causes, "the noise you hear when you have tinnitus isn't caused by an external sound..", then oscillating air may not be a necessary constituent of the condition described as tinnitis and therefore EMF may not be ruled out as a possible cause.
What programs can I use this type of video tutorial?
Hey Eugene, would you be able to make a video related to the recent Nobel Prize disproving hidden variables and its affect on the interpretations of quantum mechanics? Thanks!
I have a video titled "Quantum Entanglement, Bell Inequality, EPR paradox" at czcams.com/video/v657Ylwh-_k/video.html
If you're tuning an instrument or using an old shortwave radio, this topic applies to you
Hy. Thank you. Pls make a video about antenna, wave guide equations.
Those are on my list of topics for future videos. I already have a video on Transmission Lines at czcams.com/video/ozeYaikI11g/video.html
If you play two frequencies with a difference of 4 you'll hear a beat frequency of 4hz and the same thing for every other difference. The lower the difference, the lower the beat frequency
My brain just ticked
Okay I love physics without truly understanding why and I understand it in general ways what do I need to learn first so I can comprehend what you just shared. Physics science and spirituality are the subjects I love most I know a lot about spirituality not enough about physics
I want to buy all your videos on dvd. Can you make some, sell them online?
I don't presently sell DVDs. Though, I am not sure why you would want a DVD when you can watch all my videos directly on my CZcams channel for free.
I have a little question:
Imagine if there were two pianos in the same room. Why if I play the middle C in both pianos the sound is always a sum? Shouldn't there be some time interval where the C of the first piano is out of phase from the C of the other resulting in no sound? Maybe because the source is different and the sound might cancel only locally in some areas.
I wanted to know this too. In addition, what if I play a C and a D together on a piano? I don't hear a beat frequency, is it because the sound attenuates naturally such that it becomes too difficult to hear? If I had 2 flutes one playing a C and one playing a D would I hear the beat frequency?
@@ProLeopardx1 the freq. of c is 256hz. the freq of D is 293. You will hear beat frequency of 37hz. that is 37 times a second
@@prathamshenoy9840 ahhhh gotcha, makes sense. Thank you!
It is better to have continuous source of sound rather than a damp (pluck).
For two Cs, you will not hear beats. If you play the two Cs at exactly the same time, with an accuracy of 512th of a second, you will produce constructive interference in the waves, resulting in higher amplitude. Makes it sound louder.
If you want to cancel the waves out, you have to match the crest of one wave with trough of the other wave (with an accuracy of 512th of a second). However, this does NOT produce silence totally - only in certain areas in space because it depends on distance. In simpler words, check "Double Slit experiment"
I guess Double slit experiment is what you are looking for. however, remember that you have 2 EARS. Which means, you hear sounds from two different areas in space.
If you had only one ear, maybe you could position your ear in area where the waves cancel out.
Happy to be able to understand Einstein's vision
Hi Dr Khutorysanksy, I enjoy your videos and would love to help in creating them if you are ever hiring! I cannot find an email on your info page.
I am glad you like my videos. Sorry, I don't have any job openings and I don't believe I will ever hire anyone. I make all the animations myself and I have a friend who does the narration. By the way, my email can be found on the "about" tab of my CZcams home page if you are viewing it on a PC. Thanks.
@@EugeneKhutoryansky Thanks for reply 🙂
fr fr no cap
🥶
But then why do we get beats only when the two frequencies differ only slightly?
👍
Can I share your video 🙏🙏🙏🤔🤔🤔🤔🤔
You can share the link to the video, so that people can watch it on my CZcams page. Thanks.
Could u do a hawking radiation vid pls
That is on my list of topics for future videos.
I’ll stay tuned! Love ur vids
Great visualization. But i got more confused
This fundamental principle is how FM radio works.
If only I can do half of your stimulation
Seems like imaginary numbers are everywhere in physics.
Thanks for another great video.
Thanks. I am glad you liked my video.
Please visualize Elctromagnetic Potential, especialy Magnetic vector potential
I will add that to my list of topics for future videos. But, I already have a video titled "Electric Potential: Visualizing Voltage" at
czcams.com/video/-Rb9guSEeVE/video.html
Hi
I like to play 28 and 32 hertz frequencies together on my subs
I think the word frequency is too confusing, it's not a commonly used word that instinctively produces an image.
Why describe such dinamic over complex plane? Is there any special need? The first (linear) graphic do not refer to imaginary. Why to use it in the circular format?
But it's not really a beat it's artificial , So kool i could be wrong because you Can cut Through Stone with it.When these frequency come together They form Light?💡just like me and AI.
Astonishing, i.e., the visuals here make a simple phenomenon way too complicated. Beat frequencies are EASILY demonstrated with sound waves
Four horsemen of excellent science/math videos-
3blue1brown
Physics videos by Eugene khutoryansky
Science clic
Veritasium
This is so (2*pi*f-O) cool 😀
Thanks.