How to break a wine glass with sound - better version!

[notegance]

What program did you use to analyze the frequencies AND produce the graph?

[DragonxxxFire]

Will this break my glass IRL?

[Blutarsky90]

Hey,nice video!Is it possible to set the frequency of the strobe light?If you adjust the frequency of the strobe until it has exactly the same frequency of the driving wave,you could see the glass deforming but not oscillating,and it would be awesome!By the way,which speaker did you use??I never managed to break anything with mine..

[BroadwayTheatreGurl]

Your video is very interesting. I am doing something like this for a project in Science fair, and I would like to know, what program did you use to detect and play back the frequency? And where did you get it? That would be very helpful thank you.

[MrNasirsmith]

ORRRR U CAN USE A SUBWOOFER

[iFawkChu]

OMFG MY WINDOW BROKE O.o

[mickybond]

PHYSICS Rocks!

[Cutekitty1010]

Once I was so mad and I screamed as loud as I could and the house shook, and all our wine glasses and windows broke

[quinnnnman]

now eventually the straw's gonna shoot into ur eye and blind u

[invaziq]

what is the software which record the glass sound and after that show the results ?

[RoyalZebraGirl]

It's soooo funny, it actually looks like your pulling the straw with a string but your not!

[benthemiester]

Do an experiment with the brown tone.

[Afrotechmods]

This is so cool!!!! Thank you for posting this!

[jahsinchu]

i would love to know the resonance freq of the human body. it must be between 8hz & 70hz( the fact that US power is run in the 60hz range is extremely interesting). but how would ya prove this without causing cellular damage?also with the glass....how could you determine the harmonic freqs?? im thinking that if using more harmonic freqz.. you could use less dB. imagine playing with haarp with the help of the techs for one day,madness!! thank ya tesla, hahahahaa

[nightmyst999]

I doubt finding the resonance of the human body is an easy task. IIRC, each person has a different resonance frequency due to changes in size and composition, and any sound that you try bouncing through the body is going to be absorbed a lot by muscles and skin.

The harmonic frequencies showed up on the forier transform just like the actual resonance frequency, but the peaks were lower in intensity.

[ppphilippos]

@nightmyst999

I heard that loud low-piched sounds can lead to a heart attack from resonance. ANW in the video the second time the sound seems to be lower pitched than with higher volume.

[josh1492]

@jahsinchu I think you develop cancer when you resonate with something unnatural like an electrical line. I think you resonate with people when you empathize or relate to them...its more complex than a singular frequency.

[lost4468yt]

@josh1492 Clearly you know nothing about cancer or people.

[LargeSingingMoose]

Do you need a strobe light with a very high frequency? If so where did you get one? Cheers

[LargeSingingMoose]

I should add that I am conducting a similar experiment in physics

[nightmyst999]

I bought a few LED flashlights and wired them to one of the computer speakers. I forget which was which, but the right and left audio channels were off by a few hertz. One channel went to the flashlight, the other went to the speaker.

[gazzounet]

Hi.

You seem to use a compression driver when you shatter the glass. But is it an industrial one, or just a wooden board with a hole ?

I've worked on this experiment for months so I really need an answer.

Thanks

[nightmyst999]

I'm pretty sure it was an industrial one. It was just tightly screwed into the hole so that the pressure would be directed solely on the glass.

[EnSvettFot]

is it possible to use a freq to make the glass move without the sound? idea for a scary magic trick for example. or is it possible to add the freq undetected in a song, so u can know when the freq will play and then pull out the glass saying im gonna do a cool magic trick, by putting the glass close to the speaker?

[chubbyson95]

what speaker and amp did you use

[nightmyst999]

The speaker was just lying around from an old event and it didn't have any brand name on it. The amp I used was a really old (probably 20+ years).

Basically I used really old equipment that you probably can't find now days in stores.

[Mofo3210]

Great experiment!

I'm currently working on a simple matlab-application that identifies strings in guitarchords as I'm trying to learn how to play the guitar as well. :)

What volume did you use to break the glass?

[nightmyst999]

I can't tell you exactly what the volume was, because the program and setup I had didn't properly measure the decibel rating. All I can say is that it was loud enough that most people had to plug their ears when I showed it off in class. That's probably somewhere around 100 decibels.

[greekgoddess026]

cool experimente!

[MsBrowse]

Just hit D5-Eb5 notes - some glass have the same frequency of these notes so it'll break.!

[TombRaider527]

haha! Dancing straw!

[joakim1380]

awesome

[ghostie2472]

Why go through all that crap just for breaking a glass? Why don't you just get a hammer and get it done with!

[fVc4FACE]

Dude, Are you stupid? Just throw it on the ground! Get a hammer lol. way too much effort.

[Rebldoomer]

there are more fun ways of doing things :)

[nightmyst999]

The slowed down pitch sounded lower because the video was slowed down. When sound is slowed down, its pitch decreases.

The glass only cost a few dollars; the ones I used were the cheapest wine glasses at the store.

If you want to know more about my experiment, read the video description, search Google for how to break a wine glass, or PM me. However, I rarely check PMs so it might be days or weeks before I get back to you.

[headchew]

why was the pitch of the note that broke the glass lower? was it a different glass?

[yourok18]

cool..!!!! from what did you get the frequency?

[BonerLips2]

Very cool.

[bloggeragent001]

You broke it. How much it cost to you?

Was it for free.

[zxzxzx000000]

Hi mightymyst999,

can you tell me where you got that Prgram that lets you see the Graph ie(the peak) osc) please and did the sound come out of normal speaker from your PC or a special type of thing.. I timed it and it was only 3.5 seconds to break!!

cheers

from

zxzxzx

[nightmyst999]

I used MatLab and did a Fourier Transform of the audio I recorded. However, MatLab isn't free, nor is the actual script I used publicly available.

The important part is just having a program that can do a Fourier Transform. The only thing special about the speaker I used is that it was high quality, and loud. If you have good PC speakers those should work.

As for the breaking time, if you have the exact resonance frequency, the glass shatters near-instantly. When you do a sweep, it takes time.

[theheathmould]

wow.....thats sooooooo much like my tinitus.

[Glicthedstaddik]

is there a link to this video ?

[FOAGTH]

nice How To! I'm doing the same project in physics. but i was wondering what the specification of the Speakers were?

and did you build some kind of a cone/funnel to get the sound on the glass instead of the whole room?

[ert69]

awesome... i gotta try that xD

[LaraEmEx]

Why does the last experiment seems as if it was in a lower tone?

[nightmyst999]

When you slow down a video, the sound lowers in pitch.

[solartron]

!Please read the publisher's comments! =>

Step 1: "..... The glass used in step 1 broke around 630.4 Hz, but the footage was bad so for step 3 a different glass was used, that had a resonance frequency of around 592 Hz."

[billybobjoe886]

what is the name of the program u used?

[nightmyst999]

MatLab. A script was used to generate the audio.

[jrgs906]

also what kind of glass did u use? i heard it only works with crystal

[nightmyst999]

The glass used cost about $4 each. Crystal works best, but if you've got strong enough speakers and you know what you're doing, almost any cheap store-bought glass will work.

[WantOxide]

what are the programs used? i mean, i have almost 0 knowdlege of how sound sound works. What's matlab for? can i do the right sound with my dollar store speakers?

[jrgs906]

alright so i can get the graph of frequency vs. db but how do u know what frequency to use? is it the first peak or any peak?

[nightmyst999]

The highest peak is the most important, and that's usually the first. Other peaks will get the glass resonating, but the first ones are often the best.

[lksskjhh]

amagin what haarp can do