Added: 4 years ago
From: nightmyst999
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  • lol 1:17

  • Awesome dancing straw! :D

  • HOW LOUD DID YOU HAVE TO PLAY THE FREQUENCY FOR IT TO BREAK? (decibels please. Oh and sorry for screaming at you, but i got your attention!)

  • It's an E-Flat!! Yay for perfect pitch!! :D Lol. But the glass broke when they played a D...

  • That looks like Matlab's plots

  • Thats some cool software and synthesizer. I'm sure I could do it iwh my synth too but finding the frequency maybe tricky. I think I could get close enough by ear and then fine tune it, it has several oscillators, and my amps should be more than loud enough. It might be more cool to see if I can do it my guitar. Is there enough sustain? I'm not sure the the guitar has the right range I think it's a bit lower than this even at it's high notes.

  • ................ i am a kid so i don know can you tell us if there anything a kid can have that can break glass?

  • @toonsliverspider A baseball bat could work.

  • You can't break a glass with just 90 dB. You need at least 120.

  • also its Brandon that made that comment... Jermazoid is my friend he was on my computer earlier and i didn't realize i was logged in as him. Sorry for the confusion

  • I wonder if there is mathematically quantifiable correlation between the volume of the glass, it's thickness, and it's shape as three separate variables that determine invariably the resonating frequency! so like (VTS-->Hz) From what I know, sound is generally logarithmic in nature, so perhaps logarithms would be in the equation as well as trigometric functions. Atmospheric pressure could affect the frequency as well, but I doubt it would be significant. Hopefully this provokes some thought...

  • @BrandonShayMusic Good questions. I wonder also the weight or density of the crystal must be a very imporatant variable. I wonder if it's generally true as it seems the more glass/ crystal weight and size the lower the pitch and resonance will be. Large crystal bowls have a deep low note and a small glass a high note.

  • I wonder if there is mathematically quantifiable correlation between the volume of the glass, it's thickness, and it's shape as three separate variables that determine invariably the resonating frequency! so like (VTS-->Hz) From what I know, sound is generally logarithmic in nature, so perhaps logarithms would be in the equation as well as trigometric functions (you know, since any sound wave can be reduced to pure sins and cosines... Idk hopefully this provokes some thought...

  • great video!

  • straw was raving.

  • thank god i have an oscilloscope

  • i suggest using a steel rod instead of a pen :P

  • how powerful were the speakers you used?

  • what program did you used?

  • What kind of tone generator did you use to break the glass.

  • the fcking glaSS IS SHACKING :57

  • You guys need to take this knowledge and use it towards a hydrogen fuel cell. This is how the water is fractured to create the good HHO!! Good luck and thanks.

  • Pretty much, The glass It self is doing suicide from it's own sound.

  • lol the glass wuz dancin at 1:10 xD

  • OUCH! My ears :p.

  • And that, is how Stanley Myer broke the water molecule efficiently enough to run a car off water.

  • haha i loved that and how you took us through the whole process.

  • i can break a glass easy just smash it over my computer duhh

  • what was the amplitude you used because we are trying to de the experiment too but it failed so could you send me the way it must be done please

    we have the right frequency and we saw the straw trmebling but we cant break the glass coukd you please help

  • I don't know what the exact amplitude was; the program I used didn't measure that correctly. The straw bouncing around means that you're very close to the resonant frequency, but not necessarily exact. I suggest you try doing a range of frequencies, started at about 5 hz below your current frequency, to 5 hz above it. I suggest you wear earplugs, then turn up the volume to the point where anyone not wearing earplugs would plug their ears. I believe around 90 decibels should work.

  • thanx but we did exactly what you said to but it didnt work but we did it different and it eventualy worked but thanx anyway ^.^

  • sweet, i did this with my voice :)

  • lol i have this program and it costed me exactly ZERO (0) euros :P

  • MMM guy can you tell me the frequentie u used to acctualy break the glass, cuz we are trieing it at our school, but we haven't found the right Hz yet, so can you tell it? =) would be nice =)

    Thnx Robin

  • Every class has a different resonance frequency, the glasses that I used varied between 590 and 640 Hz. However, another glass we tried broke at around 1000 Hz.

  • pleasssseeee ???????  :(

  • I already said, I used MatLab. The code was written just for this project, so I doubt easily it's available. The important part of the program was doing a Fourier Transform on the recorded audio. You just need a program to do that. I don't know of any that easily do it, though.

  • pleas give me the name :P

  • what program are you using (to measure the frecuency)? :P

  • It's not something that's easily available, it's a script written by my dad in MatLab, which is a $3000 program.

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