Great explanation - the sounds waves add energy until the glass breaks. It's like pushing someone on a swing. When you push someone on a swing you add energy. If you add too much energy to the swing then the child will get fucking catapulted.
CNWLcanBGrade1 hmmm almost right. its not about how much energy you add, but at the rate you do so its much more effective to push a swing with the right timing than brute force in order to make the poor child fly to its death
And whats great about it you can shatter bacteria that way, find a resonant frequency and vibrate their cell walls until they burst open spilling the insides. Welcome to the new age medicine.
In my honors physics class in college we used Newtons Laws and Differential Equations to actually derive equation of motion for this: x(t) = Acosωt + Bsinωt A = [(W^2 - ω^2)*F/m]/[(W^2 - ω^2) + (u^2)(ω^2)] B = [uωF/m]/[(W^2 - ω^2) + (u^2)(ω^2)] ω = "natural" frequency of glass t = time W = driving frequency (sound) F = amplitude of driving frequency u = damping coefficient (caused by friction, drag, etc) As W --> ω, A --> 0 and B --> ∞. So amplitude of wine glass oscillations go to.........
yes, that's right. the frequency is determined by it's length, flexibility and mass. if the glass was made of dish ceramics it would be of a different mass and flexibility and thus have a different frequency. with the right frequency you might even be able to break a glass made of diamond if loud enough. the object must be breakable so no soft plastic unfortunately.
@Earaem Picture pushing a friend on a swing. In order to push your friend higher, you want to push him while he's moving away from you. If you push him while he's coming at you, you're just going to stop him. The most efficient time to push is at the exact moment that he is comes to a stop before moving in the opposite direction. If you're off a bit, you can force your way through it, but in the case of sound and the resonant frequency of a wine glass, the force is very very small
They show the waves in the glass , waveform amplification , like i said... The glass wobbles more than the speaker travels. The speak travels like 1/16 and the glass wobbles like 3/16 If the glass didn't break ( made of rubber)it would wobble like 1 or 2 inches after a few seconds ..
This physics principle is illustrated in the Bible when the Children of Israel blew trumpets and shouted, then the Walls of Jericho fells down. “So the people shouted when the priests blew with the trumpets: and it came to pass, when the people heard the sound of the trumpet, and the people shouted with a great shout, that the wall fell down flat, so that the people went up into the city, every man straight before him, and they took the city.” Joshua 6:20 KJV
By installing a very big speaker driven by a mega watt amplifier, you will be able to tune in the resonant frequency of earth and would be able to smash the earth into pieces.
..... driving frequency, or the sound wave) appears in numerators of A and B. So, there is a direct positive relationship there. Also, you're right the experiment wouldn't work in a vacuum since there's no sound in a vacuum :)
objects that have the same frequency as another object can interact with one another physically, this explains why ghosts can be seen by some people but not by all, its because ghosts operate on certain frequencies and only people who bring down their frequency can see ghosts of the same frequency
Hey Marty, could you please make another video to show how different levels of water in the glass change this resonance frequency? Employees in our company will be grateful. We make materials and tools for science activities in school.
Okay, that sounds better. But this is what I think is going on. That the frequency is dialed, achieving resonance with the glass molecules but is of a higher amplitude, therefore breaking the glass. In essence, disrupting the glass molecules as individuals. If the resonant frequency amplitude was equal, we would see the glass wobble without breaking. The experiment deals with "resonant frequency" and yes atmosphere is involved. Would the experiment work in a vacuum? I don't know.
This whole thing is quiet easy. You have to know the self-frequency of the glass and then generate the same sound that the glass has above 100 dB and it will brake. That's all. :)
Patrik Kókai mere knowing is one thing; demonstrating is another thing ! here Marty is the one who took efforts to demonstrate the phenomena to viewers rather than just commenting "quite easy" under the video !! important note: 'break' not 'brake' !
So, when you say the wine glass is oscillating at 300 something time per second.. Is this, any particular non-node on the rim of the glass basically? Has a frequency of 300 whatever Hz? I am curious about the fact that in the glass, as you show us the footage of, the "top and bottom" sides are compressing and expanding together whereas the 'left and right' sides are also doing this, but each (left from top, bottom from right etc) are like say 90 degrees out of phase from each other, and so is the actual tone the glass is making maybe (at least in the center of the glass idk?) like then TWICE the 300 something Hz? This is most interesting!
what? is this guy tone deaf? the two tones are obviously not the same! even to my ears, but I put this to a test, I used my SONOMA Hertz analyser and the glass frequency is 1547.7 (both time he hits the glass I get this reading) and the tone producer this man is using is actually 341.8 though on his screen it says 337.5.. when he cranks up the volume the frequency goes up to 347.2 eve though it should stay the same just with higher decibel output.
It could be due to a few different reasons. The points in the process of going from the original to your ears, Eg. The recording microphone, the speaker you're using, and the microphone you're using. Although that shouldn't change it much. It could also be that your Sonoma recording could be showing the harmonics more, and not the base resonant frequency. Then finally It could be because of different edited recordings of this video, and this is put together more for entertainment. Or its bullshit. :P
9 месяцев назад
@@JourneyofCuriosity I know the video and commnents is too old, but i get the same doubt. rsrs
Sound waves are shown to 'push' the glass at the point where the 'hit' it. But why are soundwaves of other frequencies unable to produce the same effect (of hitting and pushing) ?
I wonder what would happen with multiple speakers used to create an omnidirectional sound. You mention that the flexing of the glass is from the time between sound waves. The glass in the video is flexing in and out at 180 degrees from the sound waves it appears. So I wonder if the vibration with several speakers being used would create a vibration/flexing at all before shattering
Is there quartz in this glass?Just curious if the piece that broke off was influenced by memory of the curved shape,residual energy from tension, or the section trying to tune itself.I've seen situations where systems have collectively tuned to a unique natural frequency.Nice Job :-)
I'm doing a physics experiment and I'm trying to test something through breaking the glasses with a similar method but I'm not sure what brand of crystal glasses to buy that work the best. Any suggestions?
I don't get it. does the loudness break the glass or the resonant frequency break the glass? if the sound waves(loudness) can push the glass to break then why need to adjust to its resonating frequency? maybe you can do another experiment for everybody to see if the glass can break with loudness in random frequency.
Theoretically, yes, it can break if the amplitude of the "force" (here the sound waves) being applied were high enough. But the thing with resonance is that you let the glass absorb that energy (this is easily understood when actually solving the differential equation behind this movement). The amplitude of the vibration rises uncontrollably regardless of the amplitude of the external force being applied (well of course, the amplitude should not be 0 in which case there is no force). I'm fairly sure of this although I cannot guarantee it 100% since I'm taking a vibrations course right now and I am yet to finish it :P
+HaouasLeDocteur So seems higher external amplitude is needed to counter-act any loss of energy in the system (dampening due to air resistance). May be if we put the glass in vacuum/near-vacuum (just letting less/enough air for the sound to travel)..it may explode at much lower external amplitude? [ie less volume of the speaker]. The point is just like a bucket can be filled drop-by-drop or using a fire-hose... energy can be increased in the system continuously independent of the rate of inflow [just we need to stop/minimize leakage]
I don't understand why the glass is not resonant at that certain frequency after it breaks. Is it the physical shape that determines it's resonance initially? If that's the case, doesn't that mean that each individual wine glass or cup or whatever has a different resonance frequency bc of each glass' imperfections?
Thanks for the explanation! Although the math is beyond my grasp. But, are you saying that the amplitude of the resonant frequency play a role? Am I kinda on the right thinking process?
Does the glass break when the driver frequency matches the natural frequency of the glass or when the driver frequency exceeds that of the natural frequency?
Once I learned that earth pulse at 7,83 Hz as well as our brains. So life is tuned up at 7,83 Hz frequencyy as well as earth and nature. If the frequency of one of them be different, probably there would be no life on earth.
....... infinity. Of course they never get there because the wine glass shatters :) However, this is real life and it never matches theory 100%. There are small inevitable variations in the frequencies, even from wave to wave, which make it impossible for W to "equal" ω. So, all we'll get is A being a "really really small number" and B being a "really really large number." Large enough that the wine glass shatters before even getting to that large number. As you can see, F (amplitude of.......
Does anybody know which wine glass was used for this? I have been trying to find it for years and still could not find... looks a lot like Bohemia Maxima or Natalie 570 ml, but I have tried it and the sound is super different, would love to know.
9 месяцев назад
i'm in the same problem! My wine glass ressonance is 602 hz, much hi for my voice!
why does the glass break? because it's being heat up? it seems to make sense on an intuitive level - the glass can't take the repeated stress, but beyond that, I can't see what the physical explanation is.
It's resonance; the glass vibrates at a particular natural frequency, as shown in the video. When an external force is applied of the same frequency, the amplitude of the vibrations of the glass increases until the force is too strong for the glass. If you look up the tacoma bridge collapse, you'll see another example of resonance. How you gain amplitude on a swing is an example of resonance.
***** That's completely wrong. 1) Going 'above' this frequency doesn't make it explode, staying at the natural frequency is what causes energy to build up. 2) How can a frequency of 241 dB make a human head explode when frequency is measured in Hertz (Hz), not decibels (dB)? 241 dB is a volume, not a frequency.
FarmerMildred Yeah, that was a typo. Read it now. Basically I just don't get exactly why the glass breaks. It's no different than snapping a piece of wood in half, right? The glass is flexible to a certain extent, but it breaks when it's pushed past it's breaking point, right?
thats not the exact tone. You can hear the waves hitting your ear at different times if you listen carefully enough. However they are close enough to make it explode
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Definitely the best video depicting a slow-motion glass fracture with a good example of time passing between shattering of the different locations.
I'm going to find the frequency of the spleen of my enemies
good one hahaha
😂😂😂😂😂😂
I've learned this at school! But never seen such a slow motion video!! Great work!!
Who else is here because their physics professor provided this for learning purposes?
yeah
yup
confirm x4
me
MEEE
This is one of the best demos !!! thank you.
Great explanation - the sounds waves add energy until the glass breaks. It's like pushing someone on a swing. When you push someone on a swing you add energy. If you add too much energy to the swing then the child will get fucking catapulted.
Great analogy, scientific yet hilarious.
CNWLcanBGrade1 hmmm almost right. its not about how much energy you add, but at the rate you do so
its much more effective to push a swing with the right timing than brute force in order to make the poor child fly to its death
And whats great about it you can shatter bacteria that way, find a resonant frequency and vibrate their cell walls until they burst open spilling the insides. Welcome to the new age medicine.
It's a "driven damped simple harmonic oscillator" to be precise. So the sound waves are "driving" the glass back and forth.
In my honors physics class in college we used Newtons Laws and Differential Equations to actually derive equation of motion for this:
x(t) = Acosωt + Bsinωt
A = [(W^2 - ω^2)*F/m]/[(W^2 - ω^2) + (u^2)(ω^2)]
B = [uωF/m]/[(W^2 - ω^2) + (u^2)(ω^2)]
ω = "natural" frequency of glass
t = time
W = driving frequency (sound)
F = amplitude of driving frequency
u = damping coefficient (caused by friction, drag, etc)
As W --> ω, A --> 0 and B --> ∞. So amplitude of wine glass oscillations go to.........
yes, that's right. the frequency is determined by it's length, flexibility and mass. if the glass was made of dish ceramics it would be of a different mass and flexibility and thus have a different frequency. with the right frequency you might even be able to break a glass made of diamond if loud enough. the object must be breakable so no soft plastic unfortunately.
@Earaem Picture pushing a friend on a swing. In order to push your friend higher, you want to push him while he's moving away from you. If you push him while he's coming at you, you're just going to stop him. The most efficient time to push is at the exact moment that he is comes to a stop before moving in the opposite direction. If you're off a bit, you can force your way through it, but in the case of sound and the resonant frequency of a wine glass, the force is very very small
They show the waves in the glass , waveform amplification , like i said...
The glass wobbles more than the speaker travels.
The speak travels like 1/16 and the glass wobbles like 3/16
If the glass didn't break ( made of rubber)it would wobble like 1 or 2 inches after a few seconds ..
This physics principle is illustrated in the Bible when the Children of Israel blew trumpets and shouted, then the Walls of Jericho fells down.
“So the people shouted when the priests blew with the trumpets: and it came to pass, when the people heard the sound of the trumpet, and the people shouted with a great shout, that the wall fell down flat, so that the people went up into the city, every man straight before him, and they took the city.”
Joshua 6:20 KJV
By installing a very big speaker driven by a mega watt amplifier, you will be able to tune in the resonant frequency of earth and would be able to smash the earth into pieces.
..... driving frequency, or the sound wave) appears in numerators of A and B. So, there is a direct positive relationship there.
Also, you're right the experiment wouldn't work in a vacuum since there's no sound in a vacuum :)
Great video brother!
Awesome
objects that have the same frequency as another object can interact with one another physically, this explains why ghosts can be seen by some people but not by all, its because ghosts operate on certain frequencies and only people who bring down their frequency can see ghosts of the same frequency
Do you even know what the word frequency means?
Wtf made my day 😂
@EscapeDummy He was talking about glasses *bending* not breaking! Not everyone knows about the bending motion of the *rim*..
VERY nice video !
2606 hz perfectly breaks. You can check with your fone
Okay, didn't see the additional comments. Thank you very much for the explanation and answering the vacuum question! :)
Awesome in slowmo
Hey, gr8 video!!!!!! I think it would be cool to see leaves budding on trees in time lapse.
kas is dobkes sita ziurit nd?
👍
Hey Marty, could you please make another video to show how different levels of water in the glass change this resonance frequency? Employees in our company will be grateful. We make materials and tools for science activities in school.
this guy is just going super saiyan
Okay, that sounds better. But this is what I think is going on. That the frequency is dialed, achieving resonance with the glass molecules but is of a higher amplitude, therefore breaking the glass. In essence, disrupting the glass molecules as individuals. If the resonant frequency amplitude was equal, we would see the glass wobble without breaking. The experiment deals with "resonant frequency" and yes atmosphere is involved. Would the experiment work in a vacuum? I don't know.
awesome ! u guys are gr8
This whole thing is quiet easy. You have to know the self-frequency of the glass and then generate the same sound that the glass has above 100 dB and it will brake. That's all. :)
Patrik Kókai
mere knowing is one thing; demonstrating is another thing ! here Marty is the one who took efforts to demonstrate the phenomena to viewers rather than just commenting "quite easy" under the video !! important note: 'break' not 'brake' !
Nice shoot! What’s the voltage of the output signal from the function generator when broking the glass?
had been cool to see a wineglass made of copper bronze or iron shatter or atlest become very elastic
Thank you.
So, when you say the wine glass is oscillating at 300 something time per second.. Is this, any particular non-node on the rim of the glass basically? Has a frequency of 300 whatever Hz? I am curious about the fact that in the glass, as you show us the footage of, the "top and bottom" sides are compressing and expanding together whereas the 'left and right' sides are also doing this, but each (left from top, bottom from right etc) are like say 90 degrees out of phase from each other, and so is the actual tone the glass is making maybe (at least in the center of the glass idk?) like then TWICE the 300 something Hz? This is most interesting!
what? is this guy tone deaf? the two tones are obviously not the same! even to my ears, but I put this to a test, I used my SONOMA Hertz analyser and the glass frequency is 1547.7 (both time he hits the glass I get this reading) and the tone producer this man is using is actually 341.8 though on his screen it says 337.5.. when he cranks up the volume the frequency goes up to 347.2 eve though it should stay the same just with higher decibel output.
But from what I heard - there were at least three different sounds emitted by the glass
it sounds the same to me. any one else?
It could be due to a few different reasons. The points in the process of going from the original to your ears, Eg. The recording microphone, the speaker you're using, and the microphone you're using. Although that shouldn't change it much. It could also be that your Sonoma recording could be showing the harmonics more, and not the base resonant frequency. Then finally It could be because of different edited recordings of this video, and this is put together more for entertainment. Or its bullshit. :P
@@JourneyofCuriosity
I know the video and commnents is too old, but i get the same doubt. rsrs
couldn't you in theory, break the molecular bonds of any compound with the right frequency? regardless of power?
Yep as everything vibrates at a certain tone, find the tone, increase the frequency and voilá
@EscapeDummy Oh. Your comment wasn't technically in response to anything, so I didn't know.
Sound waves are shown to 'push' the glass at the point where the 'hit' it.
But why are soundwaves of other frequencies unable to produce the same effect (of hitting and pushing) ?
@thekiyote That's a so to the point explanation! I understand the analogy completely! Thanks a lot ^^
That's amazing
I wonder what would happen with multiple speakers used to create an omnidirectional sound. You mention that the flexing of the glass is from the time between sound waves. The glass in the video is flexing in and out at 180 degrees from the sound waves it appears. So I wonder if the vibration with several speakers being used would create a vibration/flexing at all before shattering
COOL VIDEO!!!
I love physics.
so there was a quick camera grab but was there a confirmation of the Hz for that glass? …
Is there quartz in this glass?Just curious if the piece that broke off was influenced by memory of the curved shape,residual energy from tension, or the section trying to tune itself.I've seen situations where systems have collectively tuned to a unique natural frequency.Nice Job :-)
Thanks for posting
What is left of that wine glass has a new frequency
I'm doing a physics experiment and I'm trying to test something through breaking the glasses with a similar method but I'm not sure what brand of crystal glasses to buy that work the best. Any suggestions?
This is fuckin' cool.
what happen if we make it to water? can separate hidrgogen from water?
What type of camera/frame rate has been used to record the glass moving?
I don't get it. does the loudness break the glass or the resonant frequency break the glass?
if the sound waves(loudness) can push the glass to break then why need to adjust to its resonating frequency?
maybe you can do another experiment for everybody to see if the glass can break with loudness in random frequency.
Theoretically, yes, it can break if the amplitude of the "force" (here the sound waves) being applied were high enough. But the thing with resonance is that you let the glass absorb that energy (this is easily understood when actually solving the differential equation behind this movement). The amplitude of the vibration rises uncontrollably regardless of the amplitude of the external force being applied (well of course, the amplitude should not be 0 in which case there is no force).
I'm fairly sure of this although I cannot guarantee it 100% since I'm taking a vibrations course right now and I am yet to finish it :P
HaouasLeDocteur yeah, that make sense, absorbing the energy.....thanks.
+HaouasLeDocteur So seems higher external amplitude is needed to counter-act any loss of energy in the system (dampening due to air resistance). May be if we put the glass in vacuum/near-vacuum (just letting less/enough air for the sound to travel)..it may explode at much lower external amplitude? [ie less volume of the speaker]. The point is just like a bucket can be filled drop-by-drop or using a fire-hose... energy can be increased in the system continuously independent of the rate of inflow [just we need to stop/minimize leakage]
Can I ask for permission to use segments of this video for an iBook I'm working on?
2:10
Damn. Why do they speed up the frame rate!? It looks like that's why it breaks.
I don't understand why the glass is not resonant at that certain frequency after it breaks. Is it the physical shape that determines it's resonance initially? If that's the case, doesn't that mean that each individual wine glass or cup or whatever has a different resonance frequency bc of each glass' imperfections?
Same applicable to metal or porcelain?
Thanks for the explanation! Although the math is beyond my grasp. But, are you saying that the amplitude of the resonant frequency play a role? Am I kinda on the right thinking process?
Wondering how many watts were required to shatter that glass. Did you take any snapshots of the power levels at the time of climax?
Does the glass break when the driver frequency matches the natural frequency of the glass or when the driver frequency exceeds that of the natural frequency?
How slow the slow montion needs to be in order to see the vibrations?
What power speaker were you using?
Once I learned that earth pulse at 7,83 Hz as well as our brains. So life is tuned up at 7,83 Hz frequencyy as well as earth and nature. If the frequency of one of them be different, probably there would be no life on earth.
....... infinity. Of course they never get there because the wine glass shatters :)
However, this is real life and it never matches theory 100%. There are small inevitable variations in the frequencies, even from wave to wave, which make it impossible for W to "equal" ω. So, all we'll get is A being a "really really small number" and B being a "really really large number." Large enough that the wine glass shatters before even getting to that large number.
As you can see, F (amplitude of.......
Does anybody know which wine glass was used for this? I have been trying to find it for years and still could not find... looks a lot like Bohemia Maxima or Natalie 570 ml, but I have tried it and the sound is super different, would love to know.
i'm in the same problem! My wine glass ressonance is 602 hz, much hi for my voice!
thnxx
what speakers did u used
No, as a muscian I don't have a clue. Do you know what "resonant frequency" means?
A M O G U S
I am a physics teacher. You might be surprised what people don't know.
why does the glass break? because it's being heat up? it seems to make sense on an intuitive level - the glass can't take the repeated stress, but beyond that, I can't see what the physical explanation is.
It's resonance; the glass vibrates at a particular natural frequency, as shown in the video. When an external force is applied of the same frequency, the amplitude of the vibrations of the glass increases until the force is too strong for the glass. If you look up the tacoma bridge collapse, you'll see another example of resonance. How you gain amplitude on a swing is an example of resonance.
***** That's completely wrong.
1) Going 'above' this frequency doesn't make it explode, staying at the natural frequency is what causes energy to build up.
2) How can a frequency of 241 dB make a human head explode when frequency is measured in Hertz (Hz), not decibels (dB)? 241 dB is a volume, not a frequency.
FarmerMildred You're saying it's the amplitude, not the frequency?
Ester Samuels Typo?
FarmerMildred Yeah, that was a typo. Read it now. Basically I just don't get exactly why the glass breaks. It's no different than snapping a piece of wood in half, right? The glass is flexible to a certain extent, but it breaks when it's pushed past it's breaking point, right?
Marty, how do I connect with you to ask permission to use your video?
I disagree, the sound waves are not "pushing" the glass during resonance.
wow!!!!!!!!!!!
Hot dude !
Wow
Can we use this tech. to create an earthquake??
thats not the exact tone. You can hear the waves hitting your ear at different times if you listen carefully enough. However they are close enough to make it explode
No shit Beethoven, go back to working on your next single.
Soo cool pipi
Leftover inertia makes the glass swing ? Wtf? The speaker is still on!
@EscapeDummy lol, that's not actually realistically going to happen
Can you be my school physics teacher?
1:51
Like for pat Doyle
hah ioe ftw
barun dahr
And? Doesn't change the fact that I don't think like most of their population. ;)
Do sperm whales use sound to hunt giant squids?
+arrivinglotus1 No. They use sound to fuck, basically.
+Jerome Madridejos
and spearm...
Brits...
What an annoying fucking sound. I'd self destruct if I were exposed to that too