The Secret of Synchronization

31. mars. 2021
6 197 327 Ganger

How does order spontaneously arise out of chaos? This video is sponsored by Kiwico - go to for 50% off your first month of any crate.
An enormous thanks to Prof. Steven Strogatz - this video would not have been possible without him. Much of the script-writing was inspired and informed by his wonderful book Sync, and his 2004 TED talk. He is a giant in this field, and has literally written the book on chaos, complexity, and synchronization. It was hard to find a paper in this field that Steven (or one of his students) didn't contribute to. His Podcast "The Joy of X" is wonderful - please listen and subscribe wherever you get your podcasts
Nicky Case's Amazing Firefly Interactive -
Great Kuramoto Model Interactive -
Strogatz, S. H. (2012). Sync: How order emerges from chaos in the universe, nature, and daily life. Hachette UK. -
Strogatz, S. H. (2000). From Kuramoto to Crawford: exploring the onset of synchronization in populations of coupled oscillators. Physica D: Nonlinear Phenomena, 143(1-4), 1-20. -
Goldsztein, G. H., Nadeau, A. N., & Strogatz, S. H. (2021). Synchronization of clocks and metronomes: A perturbation analysis based on multiple timescales. Chaos: An Interdisciplinary Journal of Nonlinear Science, 31(2), 023109. -
The Broughton Suspension Bridge and the Resonance Disaster -
Bennett, M., Schatz, M. F., Rockwood, H., & Wiesenfeld, K. (2002). Huygens's clocks. Proceedings of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences, 458(2019), 563-579. -
Pantaleone, J. (2002). Synchronization of metronomes. American Journal of Physics, 70(10), 992-1000. -
Kuramoto, Y. (1975). Self-entrainment of a population of coupled non-linear oscillators. In International symposium on mathematical problems in theoretical physics (pp. 420-422). Springer, Berlin, Heidelberg. --
Great video by Minute Earth about Tidal Locking and the Moon -
Strogatz, S. H., Abrams, D. M., McRobie, A., Eckhardt, B., & Ott, E. (2005). Crowd synchrony on the Millennium Bridge. Nature, 438(7064), 43-44. -
Zhabotinsky, A. M. (2007). Belousov-zhabotinsky reaction. Scholarpedia, 2(9), 1435. -
Flavio H Fenton et al. (2008) Cardiac arrhythmia. Scholarpedia, 3(7):1665. -
Cherry, E. M., & Fenton, F. H. (2008). Visualization of spiral and scroll waves in simulated and experimental cardiac tissue. New Journal of Physics, 10(12), 125016. -
Tyson, J. J. (1994). What everyone should know about the Belousov-Zhabotinsky reaction. In Frontiers in mathematical biology (pp. 569-587). Springer, Berlin, Heidelberg. -
Winfree, A. T. (2001). The geometry of biological time (Vol. 12). Springer Science & Business Media. -
Special thanks to Patreon supporters: Mac Malkawi, Oleksii Leonov, Michael Schneider, Jim Osmun, Tyson McDowell, Ludovic Robillard, jim buckmaster, fanime96, Juan Benet, Ruslan Khroma, Robert Blum, Richard Sundvall, Lee Redden, Vincent, Lyvann Ferrusca, Alfred Wallace, Arjun Chakroborty, Joar Wandborg, Clayton Greenwell, Pindex, Michael Krugman, Cy 'kkm' K'Nelson, Sam Lutfi, Ron Neal
Written by Derek Muller and Petr Lebedev
Animation by Fabio Albertelli and Jakub Misiek
GFX and 3D animation by Jonny Hyman
Filmed by Derek Muller and Raquel Nuno
Edited by Derek Muller
Additional video supplied by Getty Images
Thumbnail by Ignat Berbeci
More footage from NASA's Scientific Visualization Studio
100 metronome video from
Intro animation by Jorge Cham
Thanks for the BZ footage from SteinbockGroup: and
Animation of waves in the heart from The Virtual Heart/ EM Cherry/ FH Fenton - and
Chemical materials and protocol provided by Mike Morris and the UCI Chemistry Outreach Program
Thanks to Alie Ward for title/thumbnail consultation
Thanks to Dr Juliette Becker and Dr James O'Donoghue for the planetary science help
Music from Jonny Hyman, Epidemic Sound "Seaweed" "Deeper Than The Ocean" "Ripple Effect"
Music also from Artlist "Children of Mystery"
Thumbnail by Ignat Berbeci

  • This is probably how Nikola Tesla would wanted to get his Tesla towers in sync. Earth being the wooden bar.

    SyphiriothSyphirioth5 minutter siden
  • In this age of high technology, physics still manages to mystify us. Nicola Tesla indeed was on to something when he cane up with the earthquake machine. 🕵

    A. AlzateA. Alzate10 minutter siden
  • I really liked this. But what I liked the most is that it took some simple and obvious things we take for granted, and offered some profound insight. Thank you.

    George PalGeorge Pal34 minutter siden
  • This is how democracy was born. The majority wins. The minority must follow afterward

    J DJ D34 minutter siden
  • It is waves. Waves always equalize.

    Víðarr KerrVíðarr Kerr35 minutter siden
  • Part of this phenomenon has to be caused by the human mind though, right? Not everything is as synchronized as it appears, and we humans like finding patterns in things that don't really have patterns

    GuruGuru56 minutter siden
  • It's because they're all part of the same single body that they eventually oscillate as a single body.

    Charles MacgilchristCharles Macgilchrist57 minutter siden
  • Brilliant, brilliant! And a quality video! Keep it up my man!

    Tobe VincentTobe VincentTime siden
  • seeing veritasium's HD face after that bald guy with the bad webcam is kind of terrifying

    vayhnvayhnTime siden
  • Does increasing the number of metronomes increase the consistency of the timing?

    pleappleappleappleappleappleapTime siden
  • Out of the way so amazed it's like a room full of girls when they start hanging out together they start synchronizing on their menstrual cycle that fun

    silk Altersilk Alter2 timer siden
  • This channel makes the best videos ever!!!!

    SATERNSATERN2 timer siden
  • nature's Natural Feedback loop seems to propagate throughout our reality created over our natural humanistic existence expressed by some who have been acute to the feedback as a religious phenomena throughout the world. Our natural pendulum of life and death is especially perceived at death of a human system while during our life time some-we are sensitive to the humanistic experience as a whole called a civilization... realized as a moral pendulum written through out written history... Peace and Love always

    Richard ShaneRichard Shane2 timer siden
  • If there were 70 men marching, 60 of them fell and 20 of them were injured who were the extra 10 that were injured?

    BoatBoat2 timer siden
  • My god... I love this channel

    Cliente PromedioCliente Promedio3 timer siden
  • Explanation of why the one changes motion (after 5:44)is flawed.The arrows are drawn the wrong way. The TOTAL of the two that het in sync first will balance out with the counter motion of the platform, but that don't mean that the platform doesn't move. And the move of the platform is forced by the two that are synced already. Be cause of which it dominates the one that is still doing is own thing.

    Ary vanHarrickAry vanHarrick3 timer siden
  • Synchronicity is interesting and there are more syncs... cause each spectrum(world) has an own much balance,as much the question is which balance we choose, which sync?Thatswhy parallel waves are important,we must choose our own balance then recognize the parallels and keeping the line...if we are in higher balance we learn but we get left behind or must try more times not to get left behind...if we are in lower balance we get not our results of our choosing which sync is parallel is very important...and not each sync is available everywhere...even in universe there are more balances...and there are more universes... basically we must find the parallel outside what we are already exactly inside... mostly people are choosing lower or upper nivou balance than themselves...but it's a good school in upper nivous to getting some knowledge or rolling in the deep to leaving the inner suffering behind...this channel has a good nivou.

    Vakond SimpleVakond Simple3 timer siden
  • 2:16 the wrong acceleration on the pendulum is driving me crazy

    DorGreen1DorGreen14 timer siden
  • Nature is actually shockingly orderly. It prefers it in fact. Its why we see it everywhere and why "random chance" cannot in any fathomable sense explain our very existence.

    Comrade EverclearComrade Everclear5 timer siden
  • And as it is appointed unto men once to die, but after this the judgment: (Heb 9:27 KJV) |>~~~~~~

    The wordThe word5 timer siden
  • hey man, i was thinking....if the synchronization works atleast with a solid connection(clocks kept on same surface or something like that) , wouldn't this solve the basic issue we had while we were trying to measure speed of light!!.....since the clocks were unable to synchronize then....we couldn't measure the speed of light in one way....but using these nomes....if we first set them up and let them synchronize over time (which they will eventually)....won't then will be able to measure speed of light in both(hence different) directions! possible or let me know please!

    anand wankhadeanand wankhade5 timer siden
  • Is this what happens when you are at a red light and watch the turn signal of the car in front of you sync with your turn signal?

    beleafer22beleafer225 timer siden
  • The Earth is flat.

    Zbyszek KopećZbyszek Kopeć5 timer siden
  • Wow, so like, when you live in a fake country that only enables people to hate on each other, and outsource jobs, and covers everything in asphalt, grueling traffic, and remote strip malls w/junk food, then you will end up w/people walking in a sick, twisted, 'entitled' destructive, hurtful cadence. **So saying "Oh well, that's your choice, then" is a bunk term, no?**

    Sequential GeekSequential Geek5 timer siden
  • We just think it's disorder because we're too small to see the whole thing.

    lennat24lennat246 timer siden
  • no joke, this video gave me an idea for my phd ... see you at the nobel prize

    TrotrodorTrotrodor7 timer siden
    • tell me your name i will wait for you to appear in the news :D

      Robert NeumannRobert Neumann2 timer siden
  • "So you naturally expect universe to be "Messi" " --mybrain

    Burning ItBurning It7 timer siden
  • Remember when you were in the school lunch room and everyone happened to finish a sentence at the same time, causing a weird silence?

    jovi_aljovi_al7 timer siden
    • No.

      Víðarr KerrVíðarr Kerr39 minutter siden
  • 0:30 does this solve special cases of the N-body problem?

    No OneNo One7 timer siden
  • I wonder how the metronomes would react if they were placed on a platform resting on steel balls. And then more when the metronomes are in a circle ...

    S WS W8 timer siden
  • 2:20 I really thought it was the Minecraft music at first.

    Andrew GampalAndrew Gampal8 timer siden
  • 1:15 good heavens! the army learned a lesson and nobody died? A Miracle!

    BoomchucksBoomchucks9 timer siden
    • Well it WAS the british army.

      Sam ReddigSam Reddig46 minutter siden
  • You all understand the immune system perfectly well how to diminish as many people as you possibly can, thus to reduce their immunity to Cancers and all types of fatal diseases within the herd of The unwanted, useless eaters

    Dodd RougeauDodd Rougeau9 timer siden
  • Everyone who take civil engineering understands the World is Flat. The building of Bridges railroad tracks, and canals, confirm this.

    Dodd RougeauDodd Rougeau9 timer siden
  • I noticed synchronization with turn signals with cars at a turning lane any explanation to that???

    Miguel AguilarMiguel Aguilar9 timer siden
  • Great video as usual! I'm from Hungary and we call that type of clapping "vastaps" seen from 9:40, in English that would be "iron clapping". Just a fun fact ;)

    Máté HorváthMáté Horváth10 timer siden
  • The thing is energy distribution becomes equal

    Scare FlareScare Flare10 timer siden
  • 15:01 Him: that's not a fart.... crap! ... 19:02 I have been sitting in my own poop to far to long now.

    No OneNo One10 timer siden
    • Was thinking the same lol

      Morpheus848Morpheus8485 timer siden
  • vsauce or this channel?

    미카엘커트미카엘커트10 timer siden
  • We're with you all the way against Twitter bro.

    Herpa DerpHerpa Derp10 timer siden
  • Question: do the slower ones catch up, or do the faster ones slow down? to which one do the others "fall in line" to? lets say you have 1=2bpm, 2=4bpm and 3=6bpm, which one would they sync up to?

    Jostein TJostein T10 timer siden
  • Simple answer, God

    Qam001Qam00111 timer siden
  • Not sure how true it is, but my friend once mentioned periods among group of girls tend to synchronize over time.

    KK BKK B11 timer siden
  • Great Video Derek.

    KK BKK B11 timer siden
  • People clapping probably doesn't count. Too much opportunity for minds to get involved. If their hearing weren't a factor, then a better argument could be made. Anyway, good video.

    Jesse GilbrideJesse Gilbride12 timer siden
  • The firefly phenomenon reminds me of how people sync their breathing with other people

    ToolforOfficeToolforOffice13 timer siden
  • 2:01 they just want to cross from other side of the bridge

    MasidMasid13 timer siden
  • I and my ex talked about this. She said it's because of god's will or kind like that. I said science. Yeah, we broke up.

    Thai BinhThai Binh14 timer siden
  • This is science

    arshlan vharshlan vh15 timer siden
  • For that metronome experiment you said that it is regardless of number of metronomes. I mean that how many metronomes doesn't matter. But is it regardless of the size of platform too? I mean the relative size of metronome and platform?

    Prasad B RPrasad B R16 timer siden
  • WOW

    Don CarmenDon Carmen16 timer siden
  • fun with beer cans? I have a fun with 2 X 4s program. Hahaha.

    Don CarmenDon Carmen16 timer siden
  • Your videos are really amaZingggg

    Harshan MajuHarshan Maju16 timer siden
  • Damn, if you put several rocket engines together instead of big one, imagining a disaster will happen.

    AlexAlex16 timer siden
  • Me, an Assassin's Creed enthusiast: How can it be a secret you just climb on top of a high building and press V... Then miss the haystack and fall to your death

    Nyan CatNyan Cat16 timer siden
  • Hello Turing instabilities

    Chester LiwoszChester Liwosz17 timer siden
  • 18:03 here's the answer

    NoName YesNameNoName YesName17 timer siden
  • The people on the bridge are simply reacting to sway so that makes them all moving sync it's no secret

    Gabriel GrayGabriel Gray17 timer siden
  • can we use the kuramoto model to calculate the one way speed of light?

    BP-Brain ProblemBP-Brain Problem19 timer siden
  • I wish I was born smarter. 😔

    1joshjosh11joshjosh119 timer siden
  • How the heart muscle works in spirals is amazingly beautiful to me.

    marblebluemarbleblue19 timer siden
  • Who waits to get on a long line that’s wobbly like that? And you brits call us americans crazy.

    justdljustdl20 timer siden
  • This went from neat physics phenomena to woowoo real fast.

    mynamewhatismynamewhatis20 timer siden
  • We call nature disorder just because we dont understand how nature really works

    Saris WindsongSaris Windsong21 time siden
  • Your entire channel is at jeopardy because Bill Gates is behind creating COVID-19 virus. It is a man-made virus and for somebody to predict that only a few years before it came out is too coincidental. And now ironically he is helping support in creating a vaccine. Follow the money!

    Jonny DJonny D21 time siden
  • I don’t mean to sound like a know it all but other then the advanced mathematical equations which I won’t pretend to understand but some of these interactions seem to have be pretty obvious.

    Daniel MDaniel M21 time siden
  • 07:07 In class this would be the exact moment when I stop understanding what the teacher is talking about

    Carlos E. Torres VinuezaCarlos E. Torres Vinueza21 time siden
  • Acaso con las mentes de las personas no sucede lo mismo? Cuando la mayoría cree en algo terminan arrastrando al resto!!!!....como si entraran en sincronía

    Alfredo ToscanoAlfredo Toscano22 timer siden
  • It’s a very interesting video.

    Ruben MorenoRuben Moreno22 timer siden
  • Everyone who studies complex system should read about dialectal thinking, very helpful

    Nat HatNat Hat22 timer siden
  • 👍🏽👍🏽

    Will CWill C22 timer siden
  • Bru 2160p res

    DrawSketchGamingYTDrawSketchGamingYTDag siden
  • GOHOHO90

  • Noone: This guy: LonGAtoOD

    stinkostinkoDag siden
  • Y ¿Cómo se puede explicar que en las residencias estudiantiles de chicas, o en una casa donde viven varias mujeres, se suele ver que ellas sincronizan las menstuación? Aunque ellas lleguen en diferntes fechas, y con la menstruación en otro período, al poco tiempo entran en sincronía. A veces hay excepciones

    Oscar BERTOLAOscar BERTOLADag siden
  • And how can it be explained that in student residences for girls, or in a house where several women live, it is usually seen that they synchronize their periods? Although they arrive on different dates, and with menstruation in another period, soon after they come into sync

    Oscar BERTOLAOscar BERTOLADag siden
  • 12:40 cc: not facilitatory but "oscillatory"

    Yasin ÖzkanYasin ÖzkanDag siden
  • Can synchronisation can be used on emotions ? Since empathy is the reproduction of an emotion we percieve

    Fuck FuckFuck FuckDag siden
  • What would happen if all those random particles that pop in and out of our existence all popped into our existence at the same time? Would they throw the entire universe into chaos?

    Mizo MintMizo MintDag siden
    • Wasn't that the Big Bang?

      arty6164arty6164Dag siden
  • This was a fantastic video. Really interesting content, interesing guest and excellent quality

    Louis HennLouis HennDag siden
  • My mans really said longitude with a hard g

    Jordan JacksonJordan JacksonDag siden
  • Does that mean we’re drifting away far into space?

    Ray Is BoredRay Is BoredDag siden
  • This is part of the secret to extremely high efficiency motors/generators.

    DubsporeDubsporeDag siden
  • Chaos is an illusion of the scale of order. There is only order that only seems like chaos.

    Teddicus BoozicusTeddicus BoozicusDag siden
  • this is a frequency entropy

    Marcin SkrobańskiMarcin SkrobańskiDag siden
  • I've been pondering the orbital resonance of Jupiter's Galilean moons for years in my head. Now I finally understand how and why. Thanks.

    Ole OlsonOle OlsonDag siden
  • Which one is first? And what general frequency would gather the rest?

    Caleb DelatorreCaleb DelatorreDag siden
  • To me, this was one of the best and most inspiring episodes of Veritasium. Great work, thanks!

    Slavi ShaSlavi ShaDag siden
  • 10:59 does that mean that eventually our earth will only show one side to the sun?

    Jake HaloJake HaloDag siden
  • Amazing video. However I feel the video missed a huge potential in relating to the final point about complex systems.

    Andreas PihlAndreas PihlDag siden
  • How can a bridge have a resonant frequency?

    N ZN ZDag siden
  • Put metrinoms in diffrent direcyions plz .we want to see

    Electro motive sparkElectro motive sparkDag siden
  • Amazing video.

    Daniel SeveroDaniel SeveroDag siden
  • so you can use synchronisation to mesure the speed of light (your previous vidéo)

    Créator 64Créator 64Dag siden
  • "It was only a few decades ago that scientists started fleshing out a rigorous theory of synchronization." I don't believe that because it seems too easy. Framework of proof (for pendulums on a common movable platform, but this can easily be generalized): (1) Assuming there were 1 pendulum only, express the effect of the movement of the 1 pendulum on the movement of the platform. (2) Express effect of the movement of n asynchronous pendulums on the movement of the platform. (3) Express the effect of the movement of the platform on the movement of a pendulum. (4) From 2 and 3, generate a system of equations for the cases with 1 and 2 pendulums. (5) Solve for the equilibrium in a case with 1 and 2 pendulums, with arbitrary starting values. (6) Show that the equilibrium does not change if you add 1 pendulum, regardless of the current number of pendulums. Alternate proof framework: (1) Prove that regardless of current state after one period an apparatus with 2 pendulums is closer to synchronous equilibrium by more than some fraction of the present distance to the synchronous equilibrium. (2) Prove that for an arbitrary number of pendulums by induction. (3) Prove that the sequence of distance to synchronous equilibrium indexed by period asymptotes to the 0.

    Ashish BAshish BDag siden
  • Yet at a concert when people use lighters or flashlights to swing left and right with there arms, nobody ever gets in sync...

    BrechtBrechtDag siden
  • Does free will really exist?

    Hsiao LingHsiao LingDag siden
  • si con estos ejemplos enseñaran en el colegio todo seria distinto pero no lo hacen solo hacen ver todo lo aburrido q es la fisica

  • Aristoteles says that to reach God there are 3 paths, beauty, justice and kindness ... Beauty = Harmony = Synchronization=Cosmos...

    IanIanDag siden
  • "Christian Hoidgens" - difficult

    ericgeldersericgeldersDag siden