Seeing sound with light: strobes and resonance

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  • Опубликовано: 9 ноя 2024

Комментарии • 183

  • @BatistaR0X
    @BatistaR0X 7 лет назад +109

    this video deserves at least 1000x more views that this! very informative and interesting stuff man

    • @bryanrolfe5617
      @bryanrolfe5617  7 лет назад +3

      Very kind of you to think so! Maybe someday it will :)

    • @virajratnayale3774
      @virajratnayale3774 6 лет назад

      75 million views, alright

    • @snrnsjd
      @snrnsjd Год назад

      ​@@bryanrolfe5617
      1:36 wait wait wait.
      Brian - " There are higher frequency modes that we can isolate by *decreasing* string tension" ?!?!?!?!
      Why decreasing? Aren't you increasing the string tension ??? Please correct me if I'm wrong,I don't understand I'm confused.

  • @fzigunov
    @fzigunov 7 лет назад +41

    OMG that glass shattering was awesome, great explanation too!

    • @johnnychronic222
      @johnnychronic222 3 года назад

      Hopefully, the producer of this video ran a filter to soften the frequency from the glass vibrating and breaking! :)

  • @elliotburing87
    @elliotburing87 3 года назад +1

    The clip of you tuning the guitar by sight really ROCKED my world!…..

  • @jonaslasater4784
    @jonaslasater4784 Год назад +1

    I was looking for a video that visualized the sound wavelength of guitar gain. Stumbled upon this and I'm in awe.

  • @nathanielsmale826
    @nathanielsmale826 6 лет назад +72

    You are just genuinely a genius

    • @davegtar
      @davegtar 6 лет назад +2

      No... It is extremely simple.

    • @sc-ek6qz
      @sc-ek6qz 6 лет назад

      Genius

    • @metamorph5286
      @metamorph5286 6 лет назад +5

      Hahah maybe genius is a bit too far but this is definitely NOT simple. I mean look at that phd paper. Hard, extremely hard.

    • @praveensharma9893
      @praveensharma9893 6 лет назад +2

      bob marely hey Bob Marely, (quite horsey) it's actually not that hard. Yes, not by far simple, but basic knowledge about soundwaves and light actually makes it very achievable. No one's insecure here, or proving their intellectually ability. Also no one's a genius, ain't my fault if the Western literacy rate goes lower than expected.

    • @quinnvastag8728
      @quinnvastag8728 6 лет назад

      Marty

  • @jacobwilson1171
    @jacobwilson1171 5 лет назад +1

    This is the best video I have yet seen on harmonics! Thank you

  • @matthewremegioapostol4511
    @matthewremegioapostol4511 Год назад

    Amazing & high quality video! Thank you for this

  • @sebbes333
    @sebbes333 6 лет назад +2

    *@Bryan Rolfe, Try this:*
    Make a tune or similar that starts with really low hertz and continuously changes like +1 Hz per second, then you also program your strobe light to match the frequency change & start on the same Hz, and record the whole thing.

  • @pedroa_
    @pedroa_ 2 года назад

    That guitar tuning with light was awesome!

  • @ernestochaveznuno2689
    @ernestochaveznuno2689 5 лет назад +1

    Thanks! I tried to read the "about" section in order to know more about you, what you have studied and where. But there is no information. You explained clearly the topic which I am interested in because I am studying the sound treatment of an acoustical room, I like a lot the acoustics, but, have no mathematical o physics knowledge, so, your video helped me a lot. Thanks!

  • @willtheelectrician8184
    @willtheelectrician8184 6 лет назад +1

    That's awesome that we can learn to use frequencies to break things, we will really start to use our kowledge when we start learning how to use sound and frequencies to create things. Cheers mate :)

  • @williamdavis2505
    @williamdavis2505 6 лет назад +2

    Excellent video! I would love to see your treatment of Chadli plates. Introduce the Fourier transforms in these contexts - more MATLAB please! Encore!

  • @ExtremeUnction1988
    @ExtremeUnction1988 6 лет назад

    this is almost "Smarter Everyday" quality and only has 75,000 views. Definitely worth a subscription in itself. Done!

  • @emanueler6434
    @emanueler6434 6 лет назад +14

    1:41 half-life 3 confirmed

  • @ashutoshbhakuni303
    @ashutoshbhakuni303 3 года назад

    Fantastic! How do i make yur strobe light? Any details about parts and assembly and code?

  • @benbrown8363
    @benbrown8363 6 лет назад

    Keep this up. You'll have a billion subs. Thanks for your effort!

  • @DANTHETUBEMAN
    @DANTHETUBEMAN 6 лет назад

    keeping water in the correct resonance will make hydrogen at low amps, you can also subject it with 3 frequency of its brake down and it will work well, also monitoring software to adjust for temperature would keep things consistent and lot current draw.

  • @andrewdewar8159
    @andrewdewar8159 Год назад

    thanks I want to visualize sound and have worked out that at 343 m/s speed of sound in air, the lowest frequency to the highest frequency we can hear (20 Hz to 20 KHz) the wave lengths would be 20KHz 1.715cm , Middle A 440 Hz 77.9cm Middle C 256Hz 1.715m, 20 Hz 17.15cm

  • @XPJV
    @XPJV 6 лет назад +1

    Bill Nye is not a scientist. - He's an actor!

  • @kamboat7789
    @kamboat7789 Год назад

    Lovely listening 🎶

  • @peggyankney6657
    @peggyankney6657 2 года назад

    The wavelengths aren't indicated correctly for the standing waves. Each vibrating "loop" is marked as 1 wavelength, but it's actually only half a wavelength.

  • @Aerospacedu
    @Aerospacedu 6 лет назад

    Great science and demonstrations...thank you.

  • @TheOneZenith
    @TheOneZenith 6 лет назад +1

    That was awesome.

  • @kisore20gp
    @kisore20gp 3 года назад

    I learned this ,The relation btw camera video freq. And fundamental freq. (But which looked like nth harmonic). is awesome

  • @speakersr-lyefaudio6830
    @speakersr-lyefaudio6830 6 лет назад

    Those speakers you used looked pretty nice

  • @travisjonker744
    @travisjonker744 6 лет назад +1

    Sheesh never subbed so fast in my life! Keep it up, man.

  • @lank_asif
    @lank_asif 7 лет назад +12

    Loved you video. Please do a tutorial on how to build a strobe like yours (or share your build plans). I'm in a 3rd world country and desparate to build a stroboscope like yours. Thank you in advance.

    • @bryanrolfe5617
      @bryanrolfe5617  7 лет назад +3

      Maybe I will someday, but right now I'm sailing around the world on a small boat, and don't have the time or resources. However, I do have an Instructable that has some instructions: www.instructables.com/id/Seeing-Sound-and-Breaking-Wine-Glasses/

    • @AntonioNoack
      @AntonioNoack 6 лет назад +1

      If you can live with low brightness, you can use this simple solution, I found few weeks ago for myself :) : pbs.twimg.com/media/DTV8iz4XUAA13Oy.jpg. You only need the audio port and the LED. If no resistor is included in the audio port, you should use one! As frequency generator you can use an online tool like www.szynalski.com/tone-generator/

    • @lank_asif
      @lank_asif 6 лет назад +1

      Antonio Noack Thank you so much for sharing this info. I'm definitely going to check this out and try make a plan. You've done your good deed for the day ;)

    • @lank_asif
      @lank_asif 6 лет назад

      Antonio Noack I had a look and this setup wouldn't work, unfortunately. I need something that can strobe. Thanks anyways for the suggestion.

    • @AntonioNoack
      @AntonioNoack 6 лет назад +1

      It might not be bright enough (and you've to set your music to full volume (because the default voltage is pretty low)), but besides that it kind of can strobe :) (tested it myself).
      For brighter light an optocoupler probably is the right thing (as simplest more-power-setup I can imagine). With modified JS-Code you could also change the width of the strobes.

  • @smokeyjoe5908
    @smokeyjoe5908 3 года назад

    Hopefully you reply to this. How did you learn how to make the things you know how to make and what kind of studying did you do?

  • @SomeoneCommenting
    @SomeoneCommenting 5 лет назад

    2:30 Finally, someone showing what *real resonance* means.

  • @harikishore2514
    @harikishore2514 4 года назад

    This guy deserves 3M subs.

  • @RamkrishanYT
    @RamkrishanYT 6 лет назад

    Okay, I realised this is why I subscribed to you.

  • @mannamvenkatasubhashiny745
    @mannamvenkatasubhashiny745 6 лет назад +3

    and sir i liked your way of presentation and expiation and i am going to share it immediately

  • @adyday1656
    @adyday1656 5 лет назад

    I’ve been following Nicola Tesla earthquake machines...the name given to it probably isn’t the best title however. The John Hutchinson experiment came from it..Tesla knew the number code. He’d worked it out that everything has a positive and a negative sound. Positive is heat which melts and bonds while negative is the cold and breaks..Nicola Tesla tapped into the frequency of the building and nearly caused an earthquake lol 😂 great video 👍

  • @marioherrera6081
    @marioherrera6081 6 лет назад

    Los imanes son maravillosas puedes Aser muchas cosas y dónde conseguiste los imanes?

  • @DeanJayJackmanJr
    @DeanJayJackmanJr 6 лет назад

    Liked, Commented, Subscribed.

  • @luizgagliardi6614
    @luizgagliardi6614 6 лет назад

    Cool technique!

  • @boogerking7411
    @boogerking7411 6 лет назад +1

    I admire your friend. I also have a PhD and spent my time studying b00gers!

  • @ParthBhavsar_thepianoguy05
    @ParthBhavsar_thepianoguy05 3 года назад

    Where can I access that paper you just showed in this video 😍

  • @jimmyseterna651playlistmus8
    @jimmyseterna651playlistmus8 10 месяцев назад

    Wow that's awesome!!!

  • @subramanyam2699
    @subramanyam2699 6 лет назад

    Brilliant..

  • @aaronsorensen5165
    @aaronsorensen5165 2 года назад

    Funny, if you look at 1:11 where the guitar is showing, you can see the frequency in the background light on the guitar.
    That resonating should be the basis of this video.

  • @omsingharjit
    @omsingharjit 6 лет назад

    If you are comparing this combination with slow motion cam the my pop up question is can it also capable to capture high speed liner moving object in slow

  • @EarlWallaceNYC
    @EarlWallaceNYC 5 лет назад +1

    Bryan, where can I find the code for your strobe?
    I'm trying a similar thing at higher frequencies, but I'm not happy with my code.
    I always enjoy your videos. thanks.

  • @edwindungdung1998
    @edwindungdung1998 6 лет назад

    RUclips gave me this
    I watched and I leave with something new
    Makes me happy
    and cool stuff

  • @Fishies125
    @Fishies125 6 лет назад

    Brilliant stuff!!

  • @andrewphillip8432
    @andrewphillip8432 2 года назад

    I’m wondering if the resonant frequency of the wine glass increases slightly as you ramp up the amplitude, due to nonlinear effects. In that case, playing a note a few Hz above the measured resonant frequency would be more optimal for causing it to break.

  • @victherocker
    @victherocker 6 лет назад

    1:36 -> 1:48 shouldn't we be sticking with the formula
    wavelength = 2(string length)/# of nodes
    node: the peak of a wavelength
    ?
    then the first case the wavelength should be twice the string length
    second case would be exactly one string length as there are 2 nodes
    unless you are referring to something else

  • @aaronalienseeker801
    @aaronalienseeker801 6 лет назад

    if you see this comment try answer these questions i have boggling my head!!
    1 could this be used in a fusion reactor to alter the atoms inside to whatrver controlled state? like you say each thing has frequences. like in theory could we use a massive version of that math wrapping the collide but so concentrated and loud it changes the position of the atoms to whatever state we choose?
    2. if possible do you think the craft at area 51 had one?

  • @igotapochahontas
    @igotapochahontas 6 лет назад

    How many decibels were needed to shatter that glass?

  • @StephenduPreez
    @StephenduPreez Год назад

    awesome video bud

  • @HairyandFinanciallySolvent
    @HairyandFinanciallySolvent 3 года назад

    So automated camera enabled guitar tuners incoming?

  • @gustavoforestobritodealmei888
    @gustavoforestobritodealmei888 6 лет назад

    Very nice content!!!

  • @Nilafila76
    @Nilafila76 6 лет назад

    WOW look at that water droplet dance:))

  • @dannygrogan353
    @dannygrogan353 6 лет назад

    Great vid! Which IDE are you using to program your arduino?

  • @ericpham5198
    @ericpham5198 2 года назад

    That maybe misleading because it is one dimensions while time and space would map out something like the double side spiral and a standing wave of ultrasound already hidden in ambient so like some type of LED and other lighting are depending on at least 2 separated frequencies to have light visible...and without knowing the hidden frequencies and field the laws of physics is hard to be accepted

  • @filozofwielki1121
    @filozofwielki1121 6 лет назад

    naprawdę świetny film, porusza masę fajny tematów i w sposób skondensowany tłumaczy je bardzo obrazowo; tego szukałem, obowiązkowa pozycja wśród bibliografii mojego wykładu o drganiach i falach :D

  • @alhdlakhfdqw
    @alhdlakhfdqw 7 лет назад +5

    great video sir! I enjoyed and learnt a lot TQ very much! :) pls keep it up

    • @bryanrolfe5617
      @bryanrolfe5617  7 лет назад +1

      Thank you! I will come back to making videos like these again someday.

  • @aseth9541
    @aseth9541 6 лет назад

    Fun fact, this is why cars wheels look either moving backwards or stagnant.

  • @marvin.marciano
    @marvin.marciano Год назад

    Amazing

  • @DANTHETUBEMAN
    @DANTHETUBEMAN 6 лет назад +1

    awesome investigations :)

  • @KulbirAhluwalia
    @KulbirAhluwalia 6 лет назад

    Awesome! Which state do you use for making videos!?

  • @jamazi4
    @jamazi4 6 лет назад

    Where do overtones that are different from fundamental come from? If the wavelength is divided evenly, then we should get C4 -> C5 -> C6 and so on, but we actually get C4 ->C5 -> G5 -> C6 -> E6 and so on... Where did i lost the track? AWESOME video though! sbscrbd

  • @thatdude_93
    @thatdude_93 6 лет назад

    great video! can i get a link to the thesis your friend wrote please?

  • @omsingharjit
    @omsingharjit 6 лет назад +1

    Can we see stroblight effect below 50 Hz on any rotetional things like fan ????? Plz help me out

  • @artv.9989
    @artv.9989 6 лет назад

    I think Tesla did an experiment like this, except he made the whole building he was in vibrate, he later said had he not smashed the device that was making the building vibrate with a hammer the whole building would have collapsed

  • @topten7064
    @topten7064 5 лет назад

    Great

  • @magnusqwerty
    @magnusqwerty 6 лет назад

    1:07 Stobe frequency should be written 82 Hz, 82 hz.

  • @anomalyp8584
    @anomalyp8584 4 года назад

    The string to the speaker: doesn't it convert a longitudinal wave into a transverse one here?

  • @PiercingSight
    @PiercingSight 6 лет назад

    Wow! That was neato!
    But seriously, great video, man!

  • @mannamvenkatasubhashiny745
    @mannamvenkatasubhashiny745 6 лет назад

    sir i liked your idea it is marvellous and u have done it

  • @bennemann
    @bennemann 6 лет назад

    3:20 "and we can change the size of the droplet, and in this way you can *effect* it's resonance".
    You mean affect. "Effect" is a noun. To affect is to cause an effect on something.

    • @fuelks
      @fuelks 6 лет назад

      Wouldn't it be funny if someone spent 5 minutes writing a useless comment on a youtube video correcting the youtubers' grammar?

    • @bennemann
      @bennemann 6 лет назад

      Wouldn't it be funny if someone spent 5 minutes writing a useless comment on a comment on a youtube video correcting the youtubers' grammar?

  • @biswa145
    @biswa145 5 лет назад

    Please provide the link for the arduino program of the strobe

  • @isakhammer6558
    @isakhammer6558 6 лет назад +1

    Great job!

  • @attackhelicoptercat
    @attackhelicoptercat 6 лет назад

    nice video.

  • @tomsegev7338
    @tomsegev7338 6 лет назад +1

    "wow, that was neato"

  • @Rerry1000
    @Rerry1000 6 лет назад

    has sound enough power to push something or Im misunderstood stuffs?

  • @RababaInc
    @RababaInc 6 лет назад

    thank you

  • @NishanthSalahudeen
    @NishanthSalahudeen 6 лет назад

    Solid!!!

  • @QuinnWaters
    @QuinnWaters 6 лет назад

    thank you

  • @piranha031091
    @piranha031091 8 лет назад +1

    Neat!
    But if you set the strobe frequency to half the frequency of the guitar string's fundamental mode, would you see the string frozen in place, looking permanently bent?

    • @bryanrolfe5617
      @bryanrolfe5617  8 лет назад

      I experimented a little trying to see the overtones, but there weren't significant enough for me to easily pick out when checking multiples of the fundamental. If I halfed the frequency, we'd see the fundamental in two places, instead of just one. It'd look like what you see at 1:35 in the video.

    • @bryanrolfe5617
      @bryanrolfe5617  7 лет назад +1

      I believe if you set it to half the frequency you would see the same as you do when the frequency is matched. You'd be seeing the string in its "bent" position, on every second occasion its there. If the frequency is matched, you see it on every occasion. But to us, the two would look the same.

  • @illustrious1
    @illustrious1 6 лет назад

    Great information and very interesting delivery. Although Im disappointed you used a picture of Bill Nye the "science" guy. He is an actor not a real scientist.

    • @bryanrolfe5617
      @bryanrolfe5617  6 лет назад

      Thanks! I understand -- my point was not to imply that he was a scientist.

    • @illustrious1
      @illustrious1 6 лет назад

      Bryan Rolfe 😮oh. 😃👍🏼 I hope you keep making quality videos in the future.

  • @HappySlappyFace
    @HappySlappyFace 6 лет назад +1

    its sad that you only have2.4k subs

  • @charlie_conn235
    @charlie_conn235 6 лет назад

    Wow! That was neato!

  • @TitoTheThird
    @TitoTheThird 6 лет назад

    At 1:41 he talks about overtones of the fundamental and how these are always "integer multiples" of the fundamental. Hm, reminds me of the quanta in quantum physics.

  • @C4yne
    @C4yne 6 лет назад

    How are you at this subs n views?!
    You deserve more lmao, srsly thou

    • @bryanrolfe5617
      @bryanrolfe5617  6 лет назад

      Haha, hard to say. But one factor is that I'm no longer producing these types of videos, as I am currently sailing around the world on a small boat (see ruclips.net/channel/UCQnn8YwfzT8_TyJMswv6Ehga).
      However, I do plan to come back to producing this type of content once my voyage is over.

    • @FluidMotionFlow
      @FluidMotionFlow 5 лет назад

      Bryan Rolfe are u still boat bound?

  • @lefmankan
    @lefmankan 6 лет назад

    Very cool

  • @ofirgaash
    @ofirgaash 6 лет назад

    Hi!
    I want to do your strobe tuning at my home. I bought a cheap "party strobe 36 leds" on ebay (you can search and easely find them, they are very popular) - but they are not flashing short enough each 'shot'.
    Can you help me make the leds flash in shorter time with your knowledge of electronics or programing?

    • @EarlWallaceNYC
      @EarlWallaceNYC 5 лет назад

      Try the following...
      1. ruclips.net/video/XuZuNwRnBFQ/видео.html
      2. ruclips.net/video/2X4wF0FKkok/видео.html

  • @GomezUndercover
    @GomezUndercover 6 лет назад +1

    Someone get Gavin free and his high speed cameras!

  • @Dilworthy
    @Dilworthy 6 лет назад

    Hi Bryan, really interesting video and quite close to some experiments I've been doing with cymatics. I was wondering if you could possibly share your code for the strobe light? I'd love to visualise some of the patterns using precise frequencies and have been struggling to get precise strobe flashes. I understand if you want to keep it private but I'd much appreciate it if you don't mind?

  • @johnnyviva9017
    @johnnyviva9017 6 лет назад

    Never thought the glass vibrate that much...

  • @happilyconfuseddog8951
    @happilyconfuseddog8951 6 лет назад

    Coooool

  • @snrnsjd
    @snrnsjd 2 года назад

    1:36 wait wait wait.
    Brian - " There are higher frequency modes that we can isolate by *decreasing* string tension" ?!?!?!?!
    Why decreasing? Aren't you increasing the string tension ??? Please correct me if I'm wrong!!

    • @snrnsjd
      @snrnsjd 2 месяца назад

      Brian, I am still waiting! :)

  • @animals42life8
    @animals42life8 6 лет назад +2

    wow! yyoure so cool..

  • @AndrzejSQ9PKW
    @AndrzejSQ9PKW 3 года назад

    Komentarz abyś więcej wyświetleń miał

  • @bobtheassailant
    @bobtheassailant 6 лет назад +4

    how do you only have 2k subs

    • @bryanrolfe5617
      @bryanrolfe5617  6 лет назад +1

      Haha, I'm flattered. The main reason, I'm guessing, is because I'm not producing new videos at the moment. I'm currently working on a much bigger project that prevents me from making videos.

  • @Captainziadkhan
    @Captainziadkhan 7 лет назад +4

    great

  • @RobertAdoniasCostaGomes
    @RobertAdoniasCostaGomes 6 лет назад

    awesome video! but now I'm scared... 416.5 Hz is not that high of a frequency....
    I'm kinda betting I could try and break glass with a trombone (not sure I want to find out, though)...

  • @youhavenoprivacyandownnoth8289
    @youhavenoprivacyandownnoth8289 6 лет назад +1

    Bill Nye the Gender Studies Guy.
    Yeah SCIENCE.

  • @cesartamez5125
    @cesartamez5125 6 лет назад +12

    Use a global shutter camera instead of a rolling shutter

    • @NibNa5ty
      @NibNa5ty 6 лет назад +1

      Gnarly Bastard thats expensive tho

  • @Wanderlust1972
    @Wanderlust1972 6 лет назад +12

    lol "simple program"