The Secret of Synchronization

31 mar 2021
6 223 408 Áhorf

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

  • I see turn signal lights on cars Synchronize randomly

    Lawrence WhiteLawrence White5 klukkustundum síðan
  • The whole University has synchronicity. It has to do with the Rythm of The Spirit we are living in.

    Pantou FosPantou Fos6 klukkustundum síðan
  • LMAO THIS WAS ON A STATE TEST! Thank you for making educational, yet interesting content! Pretty sure they used the same sources you did.

    PancakePower_FTWPancakePower_FTW6 klukkustundum síðan
  • Nothing beats the ancient civilizations' innovation which last thousand years

    Hello GiddyHello Giddy6 klukkustundum síðan
  • Firefly populations in different locations around Tennessee, if memory serves, light up in waves.

    salamanca1954salamanca19546 klukkustundum síðan
  • The 2 clocks synchronize because it's love!

    Pola & TigerPola & Tiger6 klukkustundum síðan
  • The videos are so satisfying to watch

    BoredJustChillinBoredJustChillin6 klukkustundum síðan
  • We don’t really have to go back 350 years.

    KC PoeKC Poe6 klukkustundum síðan
  • Humans. Don't get me started. As the herd of we primates fell into step, a perfectly reasonable way to move in a dense crowd -- Hello, army! -- they set up a dangerous resonance in the bridge structure, something the engineers had not anticipated. They should have studied human herds, amd the military, before drawing up the structure. During the American Civil War, and I imagine in all the wars of humanity whenever a pontoon bridge was laid over a body of water, the troops were instructed to break route step, and just shamble randomly over, like any crowd in a street. Resonance has long been noted for its destructive properties, (see earthquakes, wind and Galloping Gerty, the Tacoma Narrows Bridge failure) but I think, forgotten for its positive properties, both physical and mental. And for anyone who reads this and gets a redass about it, we are all primates, the alleged greatest of the great apes. Sometimes we act like that ... sometimes not so much. We contain both.

    salamanca1954salamanca19546 klukkustundum síðan
  • To answer 19:30; Almighty God's Word!

    Simon HernandezSimon Hernandez7 klukkustundum síðan
  • I am a scientists and this blows me away

    Vaporizers101Vaporizers1017 klukkustundum síðan
  • So this is how we solve the "measuring unidirectional speed of light" problem? We use this principle to synchronize the clocks of the detectors

    DeRien8DeRien88 klukkustundum síðan
  • I went to a performance in Denmark once, and at the end people were applauding, each at their own pace but then they all went in sync and it was scary as

    Elliott SmithElliott Smith8 klukkustundum síðan
  • People who dislike this: n0, only chaos

    Gravity ERAGravity ERA9 klukkustundum síðan
  • Love that he puts sponsor stuff at the end of the video

    Nhat nguyenNhat nguyen9 klukkustundum síðan
  • Trying to remind ourselves of our cosmic existence, one day we will all meet again

    giothemathgiothemath9 klukkustundum síðan
  • 👍

    Epic1 GamerEpic1 Gamer10 klukkustundum síðan
  • ok metronomes on a wobbly surface and light bugs. And..... the whole universe. No just no

    Soman RamaSoman Rama10 klukkustundum síðan
  • Inertial equilibrium.

    Robert QuinnRobert Quinn11 klukkustundum síðan
  • This is probably how Nikola Tesla would wanted to get his Tesla towers in sync. Earth being the wooden bar.

    SyphiriothSyphirioth11 klukkustundum síðan
  • 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. Alzate11 klukkustundum síðan
  • 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 Pal12 klukkustundum síðan
  • This is how democracy was born. The majority wins. The minority must follow afterward

    J DJ D12 klukkustundum síðan
  • It is waves. Waves always equalize.

    Víðarr KerrVíðarr Kerr12 klukkustundum síðan
  • 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

    GuruGuru12 klukkustundum síðan
  • It's because they're all part of the same single body that they eventually oscillate as a single body.

    Charles MacgilchristCharles Macgilchrist12 klukkustundum síðan
  • Brilliant, brilliant! And a quality video! Keep it up my man!

    Tobe VincentTobe Vincent12 klukkustundum síðan
  • seeing veritasium's HD face after that bald guy with the bad webcam is kind of terrifying

    vayhnvayhn12 klukkustundum síðan
  • Does increasing the number of metronomes increase the consistency of the timing?

    pleappleappleappleappleappleap13 klukkustundum síðan
  • 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 Alter13 klukkustundum síðan
  • This channel makes the best videos ever!!!!

    SATERNSATERN13 klukkustundum síðan
  • 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 Shane14 klukkustundum síðan
  • If there were 70 men marching, 60 of them fell and 20 of them were injured who were the extra 10 that were injured?

    BoatBoat14 klukkustundum síðan
  • My god... I love this channel

    Cliente PromedioCliente Promedio14 klukkustundum síðan
  • 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 vanHarrick15 klukkustundum síðan
  • 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 Simple15 klukkustundum síðan
  • 2:16 the wrong acceleration on the pendulum is driving me crazy

    DorGreen1DorGreen116 klukkustundum síðan
  • 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 Everclear16 klukkustundum síðan
  • And as it is appointed unto men once to die, but after this the judgment: (Heb 9:27 KJV) |>~~~~~~

    The wordThe word16 klukkustundum síðan
  • 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 wankhade16 klukkustundum síðan
  • 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?

    beleafer22beleafer2217 klukkustundum síðan
  • The Earth is flat.

    Zbyszek KopećZbyszek Kopeć17 klukkustundum síðan
  • 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 Geek17 klukkustundum síðan
  • We just think it's disorder because we're too small to see the whole thing.

    lennat24lennat2418 klukkustundum síðan
  • no joke, this video gave me an idea for my phd ... see you at the nobel prize

    TrotrodorTrotrodor18 klukkustundum síðan
    • tell me your name i will wait for you to appear in the news :D

      Robert NeumannRobert Neumann13 klukkustundum síðan
  • "So you naturally expect universe to be "Messi" " --mybrain

    Burning ItBurning It18 klukkustundum síðan
  • 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_al19 klukkustundum síðan
    • No.

      Víðarr KerrVíðarr Kerr12 klukkustundum síðan
  • 0:30 does this solve special cases of the N-body problem?

    No OneNo One19 klukkustundum síðan
  • 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 W20 klukkustundum síðan
  • 2:20 I really thought it was the Minecraft music at first.

    Andrew GampalAndrew Gampal20 klukkustundum síðan
  • 1:15 good heavens! the army learned a lesson and nobody died? A Miracle!

    BoomchucksBoomchucks21 klukkustund síðan
    • Well it WAS the british army.

      Sam ReddigSam Reddig12 klukkustundum síðan
  • 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 Rougeau21 klukkustund síðan
  • Everyone who take civil engineering understands the World is Flat. The building of Bridges railroad tracks, and canals, confirm this.

    Dodd RougeauDodd Rougeau21 klukkustund síðan
  • I noticed synchronization with turn signals with cars at a turning lane any explanation to that???

    Miguel AguilarMiguel Aguilar21 klukkustund síðan
  • 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 Horváth21 klukkustund síðan
  • The thing is energy distribution becomes equal

    Scare FlareScare Flare21 klukkustund síðan
  • 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 One22 klukkustundum síðan
    • Was thinking the same lol

      Morpheus848Morpheus84816 klukkustundum síðan
  • vsauce or this channel?

    미카엘커트미카엘커트22 klukkustundum síðan
  • We're with you all the way against Twitter bro.

    Herpa DerpHerpa Derp22 klukkustundum síðan
  • 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 T22 klukkustundum síðan
  • Simple answer, God

    Qam001Qam00123 klukkustundum síðan
  • Not sure how true it is, but my friend once mentioned periods among group of girls tend to synchronize over time.

    KK BKK B23 klukkustundum síðan
  • Great Video Derek.

    KK BKK B23 klukkustundum síðan
  • 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 Gilbride23 klukkustundum síðan
  • The firefly phenomenon reminds me of how people sync their breathing with other people

    ToolforOfficeToolforOfficeDegi Síðan síðan
  • 2:01 they just want to cross from other side of the bridge

    MasidMasidDegi Síðan síðan
  • 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 BinhDegi Síðan síðan
  • This is science

    arshlan vharshlan vhDegi Síðan síðan
  • 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 RDegi Síðan síðan
  • WOW

    Don CarmenDon CarmenDegi Síðan síðan
  • fun with beer cans? I have a fun with 2 X 4s program. Hahaha.

    Don CarmenDon CarmenDegi Síðan síðan
  • Your videos are really amaZingggg

    Harshan MajuHarshan MajuDegi Síðan síðan
  • Damn, if you put several rocket engines together instead of big one, imagining a disaster will happen.

    AlexAlexDegi Síðan síðan
  • 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 CatDegi Síðan síðan
  • Hello Turing instabilities

    Chester LiwoszChester LiwoszDegi Síðan síðan
  • 18:03 here's the answer

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

    Gabriel GrayGabriel GrayDegi Síðan síðan
  • can we use the kuramoto model to calculate the one way speed of light?

    BP-Brain ProblemBP-Brain ProblemDegi Síðan síðan
  • I wish I was born smarter. 😔

    1joshjosh11joshjosh1Degi Síðan síðan
  • How the heart muscle works in spirals is amazingly beautiful to me.

    marblebluemarbleblueDegi Síðan síðan
  • Who waits to get on a long line that’s wobbly like that? And you brits call us americans crazy.

    justdljustdlDegi Síðan síðan
  • This went from neat physics phenomena to woowoo real fast.

    mynamewhatismynamewhatisDegi Síðan síðan
  • We call nature disorder just because we dont understand how nature really works

    Saris WindsongSaris WindsongDegi Síðan síðan
  • 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 DDegi Síðan síðan
  • 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 MDegi Síðan síðan
  • 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 VinuezaDegi Síðan síðan
  • 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 ToscanoDegi Síðan síðan
  • It’s a very interesting video.

    Ruben MorenoRuben MorenoDegi Síðan síðan
  • Everyone who studies complex system should read about dialectal thinking, very helpful

    Nat HatNat HatDegi Síðan síðan
  • 👍🏽👍🏽

    Will CWill CDegi Síðan síðan
  • Bru 2160p res

    DrawSketchGamingYTDrawSketchGamingYTDegi Síðan síðan
  • GOHOHO90

  • Noone: This guy: LonGAtoOD

    stinkostinkoDegi Síðan síðan
  • 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 BERTOLADegi Síðan síðan
  • 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 BERTOLADegi Síðan síðan
  • 12:40 cc: not facilitatory but "oscillatory"

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

    Fuck FuckFuck FuckDegi Síðan síðan
  • 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 MintDegi Síðan síðan
    • Wasn't that the Big Bang?

      arty6164arty6164Degi Síðan síðan
  • This was a fantastic video. Really interesting content, interesing guest and excellent quality

    Louis HennLouis HennDegi Síðan síðan
  • My mans really said longitude with a hard g

    Jordan JacksonJordan JacksonDegi Síðan síðan