Yep just had to deal with it with when designing supports for a bunch of vibratory conveyors recently. Definitely a fascinating topic that has very serious real world implications that 99% of people would never even think of
@@Elasticmethod i like to think this is why it feels great to be on the same page with someone else, you resonate and feel good inside and so does the other person
or actually other frequencies to let you be and not bother you? i mean the ball was just chilling untill the same wave came around and made it bounce 😂
Frequencies are incredible. If you play a guitar or bass very loud inside a house there is always a chord that move the whole house. My apartment is in A.
As a musician ive personally experienced cases of that one particular frequency being louder than the rest because of this thing called resonant frequency, and it's interesting alright, but holy hell is it annoying to listen to in a musical setting, It just sounds so loud and so off, lmao. The fact that it also usually is the bass, too, you feel the rumble of the venue at that one particular note, and when the note changes the rumble fades to barely inaudible, Its a really weird and unavoidable experience during concerts. This made me realize something though, everything, legitimately everything, has a resonant frequency, may it be the speakers you play music to, the instrument you play, the venue of your concert, etc.
@bltnbros122 bro I'm done it alot! And it does work. From example, I don't get yoga girls recomendations. BUT... The algorithm tries from time to time to show you something new. It always tries to push a trend.
It's called sympathetic resonance. A lot of classical Indian music relies on unplucked strings that are only activated by sympathetic resonance, which is part of what gives it a droning sound.
@@mudit1 when you watch classical Indian string players, watch for the strings on their instrument they never touch. These are the sympathetic strings that drone behind the music.
Well you dont need to know resonance in gcse physics to any detail, but even if you did, the why explanation that would have to follow the demo is where you'd switch off and not be so interested anymore, like most children. And the spec is so large that each lesson counts it needs to be bang for buck in terms of knowledge or application gained for time spent. Otherwise im sure physics teachers would spend every lesson doing fun demos.
@@richardalex9428 Yeah, and I don't need to know about the Harlem Renaissance in 1910, New York, nor should all high schoolers be forced to read The Great Gatsby. I certainly have never used any of the psychology they made me take as a pre-requisite for US Government(not to mention, why do we need to memorize dates and history that arent even accurate in the first place?) I've also only written a single complex essay in my entire adult life. So, this begs the question, what is it all for? Just kidding, the answer is "so children think in different and complex ways." So...why wouldn't an elementary school teacher go above and beyond to teach class like this? It's literally their job.
I found this out when I was a kid. My guitar was in the corner of my room and one day I decided to start singing, which I do normally, but this time I hit a note that perfectly matched the tune of one of my guitar strings and it started vibrating as I was singing.
I learnt about this in a limited capacity as a kid learning how to tune drums, if you tune the a drum to the same as another it plays both when you hit one
Old 2-way radios (walkie talkies)worked by using grown crystals cut at the right size for the proper frequency resonance to activate the receiver. Every radio had a slice of crystal in it. Pretty wild.
Religious and cult doing many of that with many sounds bogus claim, but somehow science found some of it to be true, and use the principle in electronic.
This is fundamentally how radio communication works. Two resonators matched the same frequency and you vary how strong (AM) or how exact (FM) the transmitter frequency is to the receivers frequency.
Thanks I was going to ask if this is how UHF and radio works (matched frequency of devices) crazy. So wifi can be 3.5 or 5ghz and the 3.5 can reach further ( I think) do you know the lowest frequency that data has been transmitted on and how far?
@@alexhaze9709 we can go very low, but the lower frequency's work better in denser substances such as water, frequency's around 50 kHz are used for subs
I was once playing the trumpet with my grand dad and you could hear the guitar he had hanging on the wall response to what we were playing, i love physics
Great example. I think this is a good way to show how resonant inductive wireless power transfer works. Amazing how seeing the effect makes such an impact.
Right now, my neighbors are playing really loud music, and something in my room is resonating with the low end and rattling. So I'm living this exact experiment right now.
@@AlbertWesker_GOAT Yep, and the frequency of the sounds coming from the truck can even be below the range of human hearing. If a truck is making a 12Hz sine wave, we can't hear that with our ears. But if one of the walls in our house can resonate at that frequency, and we've got a picture hung up on that wall, then the sine wave coming from the truck's engine is going to move that wall, causing the picture to go "tap tap tap" against that wall 12 times a second--a sound we _can_ hear.
@@Siphonife Just as an update, they turned it off at 10pm, on the dot. They're new to the neighborhood. While I still think they don't need their music to be that loud, ever (our yards are all real tiny), and also while I do not consider Sunday night to be deserving of the "hey it's the weekend" benefit, I thought it was very cool that they shut it down at 10. And it was a party, with people. That's even harder to shut down. So they did a great job on that front. Friday or Saturday, I wouldn't even be mad as long as they pack it all up by 11ish (and still, lower volume please). But by Sunday, I really feel like you've got to wrap up by 8. There's a whole neighborhood here. Kids gotta go to school, you know?
@Repo-Man Actually it is you that is wrong and the OP is right. Sympathetic resonance actually occurs inside pianos too. One string that has been struck by a hammer causes other strings which have not been struck by a hammer to vibrate in sympathy. The overall sound you hear is the vibration of multiple strings. If you are going to respond to a post and tell someone they don't know what they are talking about, you had better be damn sure you know what you are talking about. And you don't know what you are talking about. The end result is that you look like a complete and total fool.
I think the sound you are talking about is the noise made by the cables that support the mast of a ship colliding with the metal mast. The funny thing is that these cables hit the mast at the frequency of the cable that is blown by the wind. It IS the same as the experiment in the video, very good observation.
Only thing is this is somewhat late in the general physics line and not in the first class and understanding why this happens doesn't occur until a year or 2 later
American education systems dont want kids to learn they want people dumb and afraid 😅 under the guise of learning They weed out the easily controlled and a lot of the rest get disenfranchised with society and the school systems and never really try to find out if they can excel in stem fields , most people think they arent smart enough and are afraid of failure Its crazy because in china their tiktok is even desgined to share innovation and stem fields are like rockstar jobs, meanwhike north america and the uk everyone wants to be an influencer Its a big psy op Call me crazy or a cobspiracy theorist but its legit as fuck, tiktok algorithm does work differently , and our north american education system is crap comapred to elsewhere unless you are paying for post secondary Some shit happened during the cold war and began the dumming down of america and it worked Canada too (im canadian)
If you have a guitar in a room, you can "play any string" just using your voice (at the right pitch), and you can still hear the string even after you become quiet.
Same thing happens with playing stringed instruments. When an open string's note is played on another string, the open string will hum and vibrate, resonating with the frequency
@@Mantium47you can do, but its often very subtle, the sympathetic resonance is often small in amplitude compared to the primary. So the strings will not be vibrating with as much energy. It varies so much from one instrument to another, fixed or floating bridges and trems (whammy bar), potentially even construction materials. Its also somewhat common to intentionally mute certain strings to prevent the vibrations creating sounds, like when tuning. Although some people like to tune around or work with them. But don't quote me, I am a terrible guitarist at best and a largely self taught physics fan!
@@Mantium47 thank you brother! I thought you had a very good question and it deserved an answer, even if I may not have been the most qualified person in the room to give you one!
@@Mantium47 There are some of instruments though that have many sympathetic strings (like sitars) that are not plucked but vibrate to create a cool effect!
Well, except some guy in the Middle Ages discovers this by accident and we spend hundreds of years in nonsense theories before someone figures out what's going on :) It's intuitive when you know the physics, magic when you don't
@@UnfamiliarPlace... That's how the good example is created. Someone else knows it and creates a good example to show you... Literally exactly what the original comment says.
@@thomasbaker9787 do you even know what sound wave frequency is? It has absolutely NOTHING to do with any structures. Anyone who believes that is delusional.
I got an A+ in my physics class back in 9th grade for doing a test and giving a explanation on this exact same phenomenon. BUT I did it in a guitar store by hitting the E string in the acoustic guitar section and listened as the other close by guitars started resonating as well. Pretty cool
Reminds me as a kid walking into the bathroom while performing vocal warm-ups and discovering that D# was the resonance frequency of the bathroom stalls. The first time it happened sent chills down my spine as the whole bathroom got suddenly louder.
harmonics are mindblowing.(not just talking about the sound version of them... it also happens in various settings like electric systems, mechanical systems, and so on...)
@@Tubemanjac Idk much about old radio communication but I'm guessing they have low range oscillators and some device that does frequency multiplications. Modern electronics use crystal oscillators but idk what they used to use before.
This is why the hydraulic pumps on fighter aircraft rotate at slightly different RPMs. If they spun at the same RPM, they would harmonically synchronize and destroy themselves.
@@heresjohnny602We live in an existence of frequency. What he said is correct. Pheromones are a real thing as you stated but so is what he said. One does "vibe" with others of higher consciousness. You must understand that we exist in a vibrational/light universe. Scientists measure brain waves of different stages of consciousness. Low frequency brain waves are from that crack head on the sidewalk yelling at passing vehicles. High frequency is the one who is fully enlightened sitting peacefully is absolute mental silence. Energy is very real, understand that fact.
That also works with bridges and stuff, if you reach the resonance frequency of a bridge, for example by troops marching in step over it or the wind, the bridge will start shaking more and more until it collapses. Thats why engineers have to keep this in mind when engineering anything. Same thig with cars, planes, buildings etc.
@@Cgraham07I don't know what they mean by vibrations, there's nothing to vibrate in space. These things need a medium for us to receive. It wouldn't be prevalent but a rare phenomenon.
I use this property to tune my guitar. there's actually a physical technique stringed musicians use called harmonics where we separate the string at very specific spots to make one string resonate 2 notes.
I’ve been playing guitar for 94 years and am a certified master luthier. Everything you just said is complete bullshit. If I ever find you, I will smash your guitar to splinters with my hammer that I hand forged from bronze to show you what a real harmonic sounds like.
It also works in octaves. Becomes annoying when playing classical guitar because some strings will resonate when you don’t play them. Sometimes you have to mute them. Also if you play a loud chord on electric guitar or speakers, another guitars strings will begin to vibrate
I knew about sympathetic frequencies and feedback, but this is incredible. This might help explain why people experience music/vibes and so on, as they do.
I play a semi hollow electric guitar that when played along a bass, certain frequencies make the guitar “breath” through the sound holes of it. When the bass hits certain notes, the sound waves travels through my guitar and the vibrations been felt as air from the sound holes. It’s a really cool experiment.
Also a good demonstration of how the period of a pendulum (the length of the ping pong ball's string) and it's harmonics depend on its length and not its amplitude.
This is how the first tv remotes worked. The remote had a piece of metal that the button would hit and it would make a high pitched tone. And inside the tv was another piece tuned to the same frequency and it would activate a switch.
@@dat2ra hahahha omg I completely forgot this memory - we had one of these too. But I was too young back then to understand why the programm changed lol
I used to play a upright piano with panels open in the same room that stored a drum set. Always loved being able to get the kick and the snare to rattle just by playing the piano.
I believe in music we call this phenomenon: sympathetic frequencies. For example, one struck string in a piano will cause some of the other strings to vibrate depending on their individual frequency setting or tuning.
close. sympathetic resonance. When I tune my guitar, I get more accurate results if I mute the other five strings, because each one will sympathetically vibrate slightly when another one is ringing, reducing the tuner's accuracy.
I should've added: Sympathetic resonance will produce sympathetic frequencies. You were closer than my first comment would suggest (sorry about that) :,)
This is why, in car SPL comps, they’ll play a frequency that matches the inside of the car. Clever. Helps me understand more now you’ve visualised why it works 👍
As a guitar player I use this when tuning my instrument. If I'm tuning to an open D, some of my strings I've already tuned will start to resonate when I correctly tune my other strings! Edit: to anyone who thinks this isn't a good idea, I'm sorry you don't have as good of ears as me. Because when I go back and check, low and behold, they're spot on 95% of the time. Crazy the amount of doubt the Internet has
130 yes. 520 maybe. In tech school we were taught that there's no such thing as a subharmonic because by definition a harmonic is a multiple of the fundamental frequency. That's in electronics. Mechanical systems might not work that way.
Early tv remotes worked off this principal. Pressing the button on the remote struck a piece of metal inside it that produced a specific pitch. The tv had a tuning fork in it that reacted to that pitch and would change the channel you were watching. Back then, there were only 3 tv channels, so remotes only had one button. Power and volume controls came later, when they switched to RF and IR remotes.
@mmMilitza it was before my time, but people used to call tv remotes a clicker. Another factiod about those types of remotes was any sound that would make that tuning fork vibrate would change the channel. If someone dropped their keys close to a tv, the channel would change.
We had one of the first B/W 1957 “ZENITH” TV’s with that type of remote “clicker”. The cabinet of the TV was a pale beige bleached oak. When you clicked on the channel change button, you could hear a motor whiz/whirl inside the set. It didn’t have any batteries either.
@mmMilitza BTW- If someone stood between the “remote” clicker and the TV, NOTHING would happen, move and you’d get your channel change, volume ⬆️or⬇️, On or Off. Just don’t lose that remote!
Each frequency is like another dimension. That’s why we can have radio signals so close in frequency and they don’t interfere with each other. You CAN get passive intermodulation “PIM” from another wavelength when it’s a dirty signal. That’s when you’re pumping a lot of power to your signal though.
Crazy.. by a lot of power do you mean like Volts Amps Watts or dose dB mean power of signal? Which may need more Watts to produce? Just curious as I've seen 2 way aerials advertised with dB rating.
@@alexhaze9709 where to start 🤔 We use radio waves to send signals all around us right, like cell phones, television, radio stations etc. Each radio station is a different radio wave/frequency for example. There are a bunch of different radio stations flying around in the air without interfering with each other. The reason for this is because each frequency is a different height. When a tone is started at a particular frequency, with an antenna and a transmitter (a cellular radio uses about 1520w for example), it will remain that same frequency as it travels. Echoes of it will ripple off into third and fifth harmonics that may effect other frequencies that fall into those harmonics/frequencies.
Interesting how the note the ball makes when hitting the tuning fork is an octave and a 5th above it. One of the harmonics, not the fundamental
Just here with your casual perfect pitch get outta here lol
Edit: I know now it's relative pitch not perfect pitch lmao
@@Mythikal13 😂😂definitely not
@@michaelwagner5927 damn, how'd you know the pitches then? Just good guesses / familiarity with them? Lol
@@Mythikal13well I’ve practiced relative pitch enough… but couldn’t tell you the actual pitches involved
@@michaelwagner5927 ahhh okay I got you, you still a smart cookie and I'm proud of you
I was playing my bass one day and discovered that the glasses in my cabinet are tuned to "G"
figured out my sonicare toothbrush vibrates at a slightly flat Gb
@@bassman7772same haha
@@bassman7772my toothbrush vibrates my downstairs
On God no cap😮
*were
That is why I keep friends who resonate with me
They’re vibing.
Resonance is one of my favourite concepts. Such a powerful force
Agreed. I like what you can actually see the waves start to resonate.
Yep just had to deal with it with when designing supports for a bunch of vibratory conveyors recently. Definitely a fascinating topic that has very serious real world implications that 99% of people would never even think of
@@Elasticmethod i like to think this is why it feels great to be on the same page with someone else, you resonate and feel good inside and so does the other person
Indeed how else were the pyramids built apart from such powerful forces
You also do it in music which is cool when you want vibrato on base strings
My dude just explained the calibrated skulk sensors
Lmao
This is actually what it's based on, Redstone repeaters are based on electric repeater.
@@21nspired How do you make one lmao
@@crouchlawncare9158 …but you already commented?
@@2nd-place What
It is the same way 2-way radios know when to receive audio and play the sound from the carrier wave.
No.
It isn't
This is true about life, find the people with the same frequency as you so it bounces your ping-pong ball
Bro this is the most underrated comment
I can’t excite anyone, I’m on the wrong frequency
Woke ism is dead.
@@Fatphobic.Prolly cause you're fat.
or actually other frequencies to let you be and not bother you? i mean the ball was just chilling untill the same wave came around and made it bounce 😂
Frequencies are incredible. If you play a guitar or bass very loud inside a house there is always a chord that move the whole house. My apartment is in A.
As a musician ive personally experienced cases of that one particular frequency being louder than the rest because of this thing called resonant frequency, and it's interesting alright, but holy hell is it annoying to listen to in a musical setting, It just sounds so loud and so off, lmao.
The fact that it also usually is the bass, too, you feel the rumble of the venue at that one particular note, and when the note changes the rumble fades to barely inaudible, Its a really weird and unavoidable experience during concerts.
This made me realize something though, everything, legitimately everything, has a resonant frequency, may it be the speakers you play music to, the instrument you play, the venue of your concert, etc.
Frkn fascinating man
Me is B flat
Where did it move to?
Me is G#
I love science demonstrations like this
Something very rare for NASA
@@Kryptiq333 huh? Flatearthers at it again?
@@justADeni You don't have to be a flatearther to know NASA are frauds and space science is fake and GrAY
Imagine doing that with your testicles! 😮
@@billybunter3753No!
You can do this on stringed instruments too. If you match the pitch of another string it will spontaneously vibrate.
Now the pyramids in Giza are making sense
thoughts and prayers to the citizens of Giza in this horrible war
I didnt know there was pyramids there tho
i wish every single reel on my feed was like this
yeah and not watching something with someone elses face beside it
Bro thinks he's in Instagram
Omg YES... YEES!!
you need to select "dont recommend this channel" to videos that you dont like
@bltnbros122 bro I'm done it alot! And it does work. From example, I don't get yoga girls recomendations.
BUT...
The algorithm tries from time to time to show you something new. It always tries to push a trend.
It's called sympathetic resonance. A lot of classical Indian music relies on unplucked strings that are only activated by sympathetic resonance, which is part of what gives it a droning sound.
Bro i didn't knew it as an Indian
Thanks
@@mudit1 when you watch classical Indian string players, watch for the strings on their instrument they never touch. These are the sympathetic strings that drone behind the music.
Get on with it...
@@hieronymusbutts7349ye like one has like 36 sympathetic strings
@@Jpatient perhaps you mean the santoor, which is a kind of hammered dulcimer that has 36 sympathetic strings
Great trainer and science teacher. 👏 We need trainers like this throughout the world.
I love sympathetic resonance
Why I didn’t have a physics teacher like this in secondary school. Such a great way to explain resonance.
I agree. Very nice way on explaining things.
Was thinking same thing
Well you dont need to know resonance in gcse physics to any detail, but even if you did, the why explanation that would have to follow the demo is where you'd switch off and not be so interested anymore, like most children. And the spec is so large that each lesson counts it needs to be bang for buck in terms of knowledge or application gained for time spent. Otherwise im sure physics teachers would spend every lesson doing fun demos.
I took AP Physics in high school and i was very lucky to have a teacher exactly like this, having us do experiments like this and such
@@richardalex9428 Yeah, and I don't need to know about the Harlem Renaissance in 1910, New York, nor should all high schoolers be forced to read The Great Gatsby. I certainly have never used any of the psychology they made me take as a pre-requisite for US Government(not to mention, why do we need to memorize dates and history that arent even accurate in the first place?) I've also only written a single complex essay in my entire adult life.
So, this begs the question, what is it all for?
Just kidding, the answer is "so children think in different and complex ways."
So...why wouldn't an elementary school teacher go above and beyond to teach class like this? It's literally their job.
People who can make learning fun are truly talented people
Yep.
For most people, learning is fun by default. Schools just do it in a non-fun way.
i wonder where i have seen that pfp
Yet, there is someone who paid teacher with a very cruel salary
Indeed.
I found this out when I was a kid. My guitar was in the corner of my room and one day I decided to start singing, which I do normally, but this time I hit a note that perfectly matched the tune of one of my guitar strings and it started vibrating as I was singing.
I learnt about this in a limited capacity as a kid learning how to tune drums, if you tune the a drum to the same as another it plays both when you hit one
Old 2-way radios (walkie talkies)worked by using grown crystals cut at the right size for the proper frequency resonance to activate the receiver. Every radio had a slice of crystal in it. Pretty wild.
Thats how clocks in electronics work to this day too
Religious and cult doing many of that with many sounds bogus claim, but somehow science found some of it to be true, and use the principle in electronic.
Modern radio systems still use crystal oscillator circuits which incorporates a piezoelectric quartz crystal
Old rc radio too
Radio controlled cars from the 80's used crystals for transmitter/reciever
This is fundamentally how radio communication works. Two resonators matched the same frequency and you vary how strong (AM) or how exact (FM) the transmitter frequency is to the receivers frequency.
Thanks I was going to ask if this is how UHF and radio works (matched frequency of devices) crazy. So wifi can be 3.5 or 5ghz and the 3.5 can reach further ( I think) do you know the lowest frequency that data has been transmitted on and how far?
radio does not use vibration or sound, electronics send pulses of electric up the antenna it bounces back down the antenna and em wave is created.
@@alexhaze9709 we can go very low, but the lower frequency's work better in denser substances such as water, frequency's around 50 kHz are used for subs
@@alanssnack1192 That was implied when he said radio. You don’t need to inform us that radios don’t actually use sound to transmit information
Great analogy.
I was once playing the trumpet with my grand dad and you could hear the guitar he had hanging on the wall response to what we were playing, i love physics
Great example. I think this is a good way to show how resonant inductive wireless power transfer works. Amazing how seeing the effect makes such an impact.
This is how to teach physics. Great stuff.
How to teach a black hole then ?
@@AliAbidalkareemfck that
@@AliAbidalkareemAsk your mother
@@Jagoogorman shes dead.
No I'm afraid the explanation is incomplete and just because he is showing a demo doesn't mean people are learning.
Right now, my neighbors are playing really loud music, and something in my room is resonating with the low end and rattling. So I'm living this exact experiment right now.
Stfu Tom! Let us Rock Out! And your cherry tree is fkn up our backyard.
I just discovered that this is the reason why, when a noisy old truck passes by making low deep sounds, only certain things vibrate and not others.
@@AlbertWesker_GOAT Yep, and the frequency of the sounds coming from the truck can even be below the range of human hearing. If a truck is making a 12Hz sine wave, we can't hear that with our ears. But if one of the walls in our house can resonate at that frequency, and we've got a picture hung up on that wall, then the sine wave coming from the truck's engine is going to move that wall, causing the picture to go "tap tap tap" against that wall 12 times a second--a sound we _can_ hear.
@@tom_something How unfortunate. rofl
@@Siphonife Just as an update, they turned it off at 10pm, on the dot. They're new to the neighborhood. While I still think they don't need their music to be that loud, ever (our yards are all real tiny), and also while I do not consider Sunday night to be deserving of the "hey it's the weekend" benefit, I thought it was very cool that they shut it down at 10. And it was a party, with people. That's even harder to shut down. So they did a great job on that front. Friday or Saturday, I wouldn't even be mad as long as they pack it all up by 11ish (and still, lower volume please). But by Sunday, I really feel like you've got to wrap up by 8. There's a whole neighborhood here. Kids gotta go to school, you know?
You also got me to move to rhythm
So it’s affecting me through time and space!!!!
Just drop a beat and all the molecules be bumpin
This is called sympathetic resonance, it’s part of the nuance of the sound of many instruments, especially strings!
I imagine constructive and deconstructive interference effect it as well.
There’s nothing nuanced about it
@@demondefiant6346Constructive and destructive interference requires two sources of wave. There is no second wave source.
@Repo-Man Actually it is you that is wrong and the OP is right.
Sympathetic resonance actually occurs inside pianos too. One string that has been struck by a hammer causes other strings which have not been struck by a hammer to vibrate in sympathy. The overall sound you hear is the vibration of multiple strings.
If you are going to respond to a post and tell someone they don't know what they are talking about, you had better be damn sure you know what you are talking about. And you don't know what you are talking about.
The end result is that you look like a complete and total fool.
@Repo-Manc
I like how you used a ball to visibly illustrate the sympathetic vibration.
I think that how the magic of nei-gung kung fu works.
Bro out here just vibing
Nice definition of resonance
Sympathetic resonance makes my guitar strings sound every time my dog barks. 😂✌️
So you can bounce them?
@@xoxouwuwwwthe dogs? Maybe if it’s a good song
Same man, I play Banjo, and when I am speaking in the room with it, sometimes the strings will vibrate. Almost like a ghost strum.
Sympathetic Resonance - Good name for a band!
😂😂😂😂😂😂😂
This sounds like a bell you would hear at a pier or shipyard. It’s so relaxing.
I think the sound you are talking about is the noise made by the cables that support the mast of a ship colliding with the metal mast. The funny thing is that these cables hit the mast at the frequency of the cable that is blown by the wind. It IS the same as the experiment in the video, very good observation.
@@josemurtra3172 funny how a lot of people think it is a bell, including me. Never really thought of your explanation. Feel kinda dumb now haha
*** lighthouse
@@josemurtra3172 Huh, I had no idea. I really thought it was a bell. That’s cool though, thank you for the explanation.
@@puntvandekomma9498 Learning is never dumb.
Wow😲Physics cs is really nice I love it💗
Amazing physics ❤️
This is how physics class should be. More people will be “Willing” to learn it and enjoy it.
You still need to solve equations/do the math where as a lot of American students struggle with basic algebra geometry/trig let alone Calculus lol
Only thing is this is somewhat late in the general physics line and not in the first class and understanding why this happens doesn't occur until a year or 2 later
American education systems dont want kids to learn they want people dumb and afraid 😅 under the guise of learning
They weed out the easily controlled and a lot of the rest get disenfranchised with society and the school systems and never really try to find out if they can excel in stem fields , most people think they arent smart enough and are afraid of failure
Its crazy because in china their tiktok is even desgined to share innovation and stem fields are like rockstar jobs, meanwhike north america and the uk everyone wants to be an influencer
Its a big psy op
Call me crazy or a cobspiracy theorist but its legit as fuck, tiktok algorithm does work differently , and our north american education system is crap comapred to elsewhere unless you are paying for post secondary
Some shit happened during the cold war and began the dumming down of america and it worked
Canada too (im canadian)
Not everything in life should be entertainment for you
It's no longer like this?😅
If you have a guitar in a room, you can "play any string" just using your voice (at the right pitch), and you can still hear the string even after you become quiet.
😮😮😮😮I just tried it
yeah! the string hums!
I found out about this about 1 week ago
Happy little accidents 😊
Thats bonkers; wowsers thank you! So cool
Admirado de que no lo hiciérais de pequeños como yo y todos mis amiguitos
dude physics is fucking awesome
Resonant lengths and harmonics. Love them.
Same thing happens with playing stringed instruments. When an open string's note is played on another string, the open string will hum and vibrate, resonating with the frequency
Can you generate enough sound to create cool sounds with resonance/note combos?
@@Mantium47you can do, but its often very subtle, the sympathetic resonance is often small in amplitude compared to the primary. So the strings will not be vibrating with as much energy.
It varies so much from one instrument to another, fixed or floating bridges and trems (whammy bar), potentially even construction materials.
Its also somewhat common to intentionally mute certain strings to prevent the vibrations creating sounds, like when tuning. Although some people like to tune around or work with them.
But don't quote me, I am a terrible guitarist at best and a largely self taught physics fan!
@iliketurtles4463 that's okay it was better than most ahaha
@@Mantium47 thank you brother!
I thought you had a very good question and it deserved an answer, even if I may not have been the most qualified person in the room to give you one!
@@Mantium47 There are some of instruments though that have many sympathetic strings (like sitars) that are not plucked but vibrate to create a cool effect!
Sympathetic vibration is something we combat or harness in the musical world all the time. Great display of this property.
Yep, for example "Turn that bloody snare off!"
It's frequency resonance. Sympathetic vibration is a misnomer. Am I that smart or y'all that stupid.
Sex dreams aren’t dreams
Now try that experiment with 10 more of those!
You've just earned a sub !
It's awesome how intuitive a lot of physics concepts are when you have the opportunity to just observe a good example of them.
Well, except some guy in the Middle Ages discovers this by accident and we spend hundreds of years in nonsense theories before someone figures out what's going on :) It's intuitive when you know the physics, magic when you don't
@@UnfamiliarPlace... That's how the good example is created. Someone else knows it and creates a good example to show you... Literally exactly what the original comment says.
love finally makes sense
Some believe sound wave frequency is how the ancient structures were built!
@@thomasbaker9787 do you even know what sound wave frequency is? It has absolutely NOTHING to do with any structures. Anyone who believes that is delusional.
I got an A+ in my physics class back in 9th grade for doing a test and giving a explanation on this exact same phenomenon.
BUT I did it in a guitar store by hitting the E string in the acoustic guitar section and listened as the other close by guitars started resonating as well. Pretty cool
Sympathetic harmonics! So cool
Reminds me as a kid walking into the bathroom while performing vocal warm-ups and discovering that D# was the resonance frequency of the bathroom stalls. The first time it happened sent chills down my spine as the whole bathroom got suddenly louder.
This is awsome
Hory shet
Dude imagine the intimidation factor of just knowing the resonance frequency of various objects and making them vibrate
Is there a frequency that can make you poop?
that D#
harmonics are mindblowing.(not just talking about the sound version of them... it also happens in various settings like electric systems, mechanical systems, and so on...)
"If you want to find the secrets of the universe think in terms of energy, frequency, and vibration"
-Nikola Tesla
Wow! Wireless sound!
The tuning fork experiments were my favorite in 11th grade. It was just so great to learn acoustics and harmonic motion together
We used these to calibrate radio frequencies back in the day because the harmonic frequency of the fork was so precise
Pls explain since radio frequencies are far above the audible spectrum.
@@Tubemanjac Idk much about old radio communication but I'm guessing they have low range oscillators and some device that does frequency multiplications. Modern electronics use crystal oscillators but idk what they used to use before.
For those wondering, it's called sympathetic resonance.
As a musician i forget how magic this is sometimes. Thanks for sharing to the world
INCREDIBLE SOUND PHYSICS !
I understand radio waves now, thanks!
Same concept to be able to shatter a wine glass with your voice!
This is why the hydraulic pumps on fighter aircraft rotate at slightly different RPMs. If they spun at the same RPM, they would harmonically synchronize and destroy themselves.
"Everything works in perfect sync!" -Managers
"Nothing is in perfect sync by design." -Engineers
When you naturally vibe with someone’s energy…I resonate 👌
You don't "vibe" with energy you vibe with someone's olfactory system which produces the scents of non harm you call vibes.
I knew of a guy who knew this other guy's cousin who was rushed to the ER over a case of bad vibes.
@@heresjohnny602We live in an existence of frequency. What he said is correct. Pheromones are a real thing as you stated but so is what he said. One does "vibe" with others of higher consciousness. You must understand that we exist in a vibrational/light universe. Scientists measure brain waves of different stages of consciousness. Low frequency brain waves are from that crack head on the sidewalk yelling at passing vehicles. High frequency is the one who is fully enlightened sitting peacefully is absolute mental silence. Energy is very real, understand that fact.
ooooooh come on!! Stop using what men discover to make it a romantic shit...
Cringe
That also works with bridges and stuff, if you reach the resonance frequency of a bridge, for example by troops marching in step over it or the wind, the bridge will start shaking more and more until it collapses. Thats why engineers have to keep this in mind when engineering anything. Same thig with cars, planes, buildings etc.
You're a wizard Harry!!
It’s amazing that harmonics and vibrations are prevalent throughout the universe but go unnoticed most of the time.
You sound like someone who is spirituality awakened
Does it...if no one is there to hear it? :)
@@Cgraham07I don't know what they mean by vibrations, there's nothing to vibrate in space. These things need a medium for us to receive. It wouldn't be prevalent but a rare phenomenon.
Unless you're a bridge in Tacoma lol
Not in a vacuum buddy. Vibrations rely on a medium through which to travel and there’s no medium in space.
this resonated to me in a lot of ways :)
🤨
This is all about resonance and frequency. Nicely explained.
I use this property to tune my guitar. there's actually a physical technique stringed musicians use called harmonics where we separate the string at very specific spots to make one string resonate 2 notes.
20 year bass player here, had no idea that’s what I was doing when playing harmonics. Thought it was just one higher pitched note.
3 year guitar player here and I had no idea that's what I'm doing
0 years with any musical instrument ever here. And I had zero idea also
Hehe, 5th fret and open string go brrrrrrrr.
I’ve been playing guitar for 94 years and am a certified master luthier. Everything you just said is complete bullshit. If I ever find you, I will smash your guitar to splinters with my hammer that I hand forged from bronze to show you what a real harmonic sounds like.
A really cool way to visualize how you can tune to varying radio stations depending on frequency
Harmonic resonance is sooo cool
Ugh that's so freaking cool!!!😮😮😮
It also works in octaves. Becomes annoying when playing classical guitar because some strings will resonate when you don’t play them. Sometimes you have to mute them. Also if you play a loud chord on electric guitar or speakers, another guitars strings will begin to vibrate
My guitar teacher taught me the concept of resonation by singing into his acoustic guitar
ok man
Yeah. I've cranked up a guitar amp afterhours at my shop and all the acoustic instruments started ringing. Lol
Vibing on the same level has a whole new meaning.
"I love you bro. you bounce my ball "
Litterly
underrated 😂
Same meaning just different expression of it
Yeah , it's deep 😊😂😮
"It has a....little thing on the top" 👏
the ping pong ball hitting the fork sounds awesome! I could study to that constant boing.
This is why all of our voices are different, because otherwise we'd be able to control people
FBI needs ur location!
WHHHHAHAHAHAHAHA
Wait what kind of puppet master jutsu is this?!?!?
Maybe reassess Ur reasoning
They do control people… with music
Which is the same reason you can break wine glasses with the right pitch!
Ah you beat me to it. 🍷
Yep. I do that demo as well! Should refilm it soon👍
Dope demo- subbed!
Also the same reason why i sometimes get unwanted echos when playing guitar
@@physicsisfun_officialWhat if this is what the theory meant when the pyramids was made using sounds?
Acoustics physics dept stuff is amazing
Now this is the kind of science that makes me interested in it.
I love sound wave experiments. As a musician this stuff fascinated me! Standing waves, harmonics, Fourier transform, all of it
I knew about sympathetic frequencies and feedback, but this is incredible. This might help explain why people experience music/vibes and so on, as they do.
I play a semi hollow electric guitar that when played along a bass, certain frequencies make the guitar “breath” through the sound holes of it. When the bass hits certain notes, the sound waves travels through my guitar and the vibrations been felt as air from the sound holes. It’s a really cool experiment.
yeah body is 70% water
@@barrilitomusic tune it to Eb standard and watch it open up
you can use a beat frequency to get some really cool oscilations in the pendulum, too
Also a good demonstration of how the period of a pendulum (the length of the ping pong ball's string) and it's harmonics depend on its length and not its amplitude.
Sometimes the snare drums in the back of the room will start vibrating while the winds are playing
Now that you say it i do remember the snares making noise during certain scenarios during band class, never put much thought into it
Snare with strings resonates with my voice
physics is so cool when you figure out stuff like this
When you get that look across a crowded room
You're a wizard, Harry!
This is how the first tv remotes worked. The remote had a piece of metal that the button would hit and it would make a high pitched tone. And inside the tv was another piece tuned to the same frequency and it would activate a switch.
I remember these. We had one and, if we were eating dinner while watching tv and dropped a fork onto the plate, the channel would change.
@@dat2ra hahahha omg I completely forgot this memory - we had one of these too. But I was too young back then to understand why the programm changed lol
jingling a large key chain would do this, too
Imagine having 4 of these as an alarm bell and they're put on the ceiling so you can't snooze them.
Duerme temprano, y problema solucionado
Sleep Paralysis fuel
Holy shit that's incredible
I used to play a upright piano with panels open in the same room that stored a drum set. Always loved being able to get the kick and the snare to rattle just by playing the piano.
I believe in music we call this phenomenon: sympathetic frequencies. For example, one struck string in a piano will cause some of the other strings to vibrate depending on their individual frequency setting or tuning.
close. sympathetic resonance.
When I tune my guitar, I get more accurate results if I mute the other five strings, because each one will sympathetically vibrate slightly when another one is ringing, reducing the tuner's accuracy.
I should've added:
Sympathetic resonance will produce sympathetic frequencies.
You were closer than my first comment would suggest
(sorry about that)
:,)
@@zedmelon thanks for the tip
Good example mate
If a piano weren't an equal-tempered instrument, the sympathetic resonance would be greater.
That explains..when I shouted at a crowd saying 'you are stupid' every one turned and looked at me.😂
This is why, in car SPL comps, they’ll play a frequency that matches the inside of the car.
Clever. Helps me understand more now you’ve visualised why it works 👍
This is why you don't play guitar in the same room as your other guitars unless they have clamps muting the strings.
What will happen ? I'm too curious to know and I only have 1 guitar. :(((
@@dt9327 the same thing that’s happening to the tuning forks
@@dt9327you will be catapulted to the 4th dimension that's why it's forbidden
@@dt9327 I believe the other guitar strings will start vibrating aswell
It'd be an auto-chorus xD
Moral of the story: Surround yourself only with the people who vibe in your same frequency
well said
Not how that works
@@justillin4015 didn't ask
You should, because you clearly don’t understand the complexity of human life or the reality of existence.
@@Greatwhiteslothdidn’t need to ask for them to comment something true
As a guitar player I use this when tuning my instrument. If I'm tuning to an open D, some of my strings I've already tuned will start to resonate when I correctly tune my other strings!
Edit: to anyone who thinks this isn't a good idea, I'm sorry you don't have as good of ears as me. Because when I go back and check, low and behold, they're spot on 95% of the time. Crazy the amount of doubt the Internet has
Resonant frequencies. Pretty cool stuff. I'm a cellist and a similar thing happens when tuning
Where do you hang your ping pong ball?
That's how I tune my guitar. My guitar might not be tuned to the right pitch, but it's at least in tune with itself lol
I’d be weary because both my A strings do that even if they’re not perfectly tuned together
@@Untoldanimations could be hardware/metal parts of the bridge vibrating into a string.
This is really cool
That is how the detonator works. Pretty cool.
Try with 130, or 520. I bet they'd both have a similar effect on the 260 fork
130 yes. 520 maybe. In tech school we were taught that there's no such thing as a subharmonic because by definition a harmonic is a multiple of the fundamental frequency. That's in electronics. Mechanical systems might not work that way.
It happens sometimes when I sing next to my guitar, sometimes I hear its strings vibrating after I sing a specific note
“Juhhwnna see something kinda cool?”
Great video. Factual. Interesting. Doesnt push the common "this is a metaphor for people" bs. Great video.
Early tv remotes worked off this principal. Pressing the button on the remote struck a piece of metal inside it that produced a specific pitch. The tv had a tuning fork in it that reacted to that pitch and would change the channel you were watching. Back then, there were only 3 tv channels, so remotes only had one button. Power and volume controls came later, when they switched to RF and IR remotes.
@mmMilitza it was before my time, but people used to call tv remotes a clicker. Another factiod about those types of remotes was any sound that would make that tuning fork vibrate would change the channel. If someone dropped their keys close to a tv, the channel would change.
@mmMilitzaMy nana is 90 and goes on RUclips and facebook all the time lol
We had one of the first B/W 1957 “ZENITH” TV’s with that type of remote “clicker”. The cabinet of the TV was a pale beige bleached oak. When you clicked on the channel change button, you could hear a motor whiz/whirl inside the set. It didn’t have any batteries either.
@mmMilitza
BTW- If someone stood between the “remote” clicker and the TV, NOTHING would happen, move and you’d get your channel change, volume ⬆️or⬇️, On or Off.
Just don’t lose that remote!
Слишком сложно, в моей семье я был пультом для телевизора
Each frequency is like another dimension.
That’s why we can have radio signals so close in frequency and they don’t interfere with each other.
You CAN get passive intermodulation “PIM” from another wavelength when it’s a dirty signal.
That’s when you’re pumping a lot of power to your signal though.
Crazy.. by a lot of power do you mean like Volts Amps Watts or dose dB mean power of signal? Which may need more Watts to produce? Just curious as I've seen 2 way aerials advertised with dB rating.
@@alexhaze9709 where to start 🤔
We use radio waves to send signals all around us right, like cell phones, television, radio stations etc.
Each radio station is a different radio wave/frequency for example. There are a bunch of different radio stations flying around in the air without interfering with each other.
The reason for this is because each frequency is a different height. When a tone is started at a particular frequency, with an antenna and a transmitter (a cellular radio uses about 1520w for example), it will remain that same frequency as it travels.
Echoes of it will ripple off into third and fifth harmonics that may effect other frequencies that fall into those harmonics/frequencies.
@@JesseJames-ig7gu Thanks for taking the time to reply. I learnt something new, I appreciate it.