The Secret of Synchronization

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


  • God
    God4 klukkustundum síðan

    Indras web I've personally experienced full thought pattern synchronisation while I could talk with someone with my mind and thoughts .. we were close and it somehow blended ... it's weird and magical

  • Mohammed Rayan Khan
    Mohammed Rayan Khan6 klukkustundum síðan

    According to this phenomena, if we place two watches nearby the second hand of the watch must synchronize to one another as time passes. Correct me if I am wrong!

  • Han Doko
    Han Doko6 klukkustundum síðan

    after see u video hmm i thing falun gong its true.. every thing in universe its rotate...

  • S. V. Pinto
    S. V. Pinto6 klukkustundum síðan

    Great video! Could you make a video of self-organization considering his similarity with the phenomena of the current video? (Sorry for my english :c)

  • Johann Gambolputty
    Johann Gambolputty7 klukkustundum síðan

    It's already been said, but you've really upped the quality of your vids recently (and they weren't too shabby before)! Exquisite stuff

  • Adrian Marta
    Adrian Marta7 klukkustundum síðan

    Because the universe has a Creator.

  • Amaizing World
    Amaizing World8 klukkustundum síðan

    If anyone thinks nature tend to move towards chaos, doesnt knkw what they are talking about and probably failed physics.

  • Adhanda
    Adhanda8 klukkustundum síðan

    2nd law treats the universe as a closed system, which it is NOT.

  • zijuiy wttuy
    zijuiy wttuy9 klukkustundum síðan

    This is the kind of breathing and colour of those who saw something beautiful

  • HX3_EnFr Hdel
    HX3_EnFr Hdel9 klukkustundum síðan

    I became a lot smarter than I was before

  • Nando Florestan
    Nando Florestan10 klukkustundum síðan

    Synchronized clapping in classical concerts is not an instance of the physical phenomenon, it is a matter of taste and expression of musical beings. It is voluntary, not emergent. It is rather likely to occur in concerts in Brazil and almost never happens in Poland. The person who put this in the video... has not been to many concerts. Clapping in phase means we want an encore. In Brazil and possibly elsewhere a pianist will give an encore immediately if the audience asks in this way. When I do want a bis, I listen to the clapping and find the pulse. It’s intentional.

  • Fabian Van Der Elst
    Fabian Van Der Elst16 klukkustundum síðan

    Listen to Steve Reich's "Violin Phase" for an optimal soundtrack to this video :)

  • Aaron Martinez
    Aaron Martinez17 klukkustundum síðan

    Dammit veritasium stop keeping me awake!

  • Diletta Moscatelli
    Diletta Moscatelli17 klukkustundum síðan

    When I was young I often went to church and when we had to eat the host everybody walked in lines oscillating like penguins all at the same I understand why, that’s amazing

  • Javier Torres
    Javier Torres17 klukkustundum síðan

    You idiots got the Moon thing wrong but, OK...

  • ying17zi
    ying17zi17 klukkustundum síðan

    Subscribed. Like the video and your voice! Thank you for making/creating this video!

  • Digit Study Point
    Digit Study Point18 klukkustundum síðan


  • Joel Oliver
    Joel Oliver18 klukkustundum síðan

    An easy way to get synchronization is to go”ooh oooohhhh oohhhh ooohhh oooooohhh” in a room full of guys

  • Jared Croft
    Jared Croft20 klukkustundum síðan

    Narrator: to understand it, we have to go back 350 years. My stoned ass: Well let's go then.* smirks with a smile, leans back in chair and props foot on knee*

  • Collin Smith
    Collin Smith20 klukkustundum síðan

    Great video! 👍

  • Mange Chanagement
    Mange Chanagement21 klukkustund síðan

    That metronome syncing was amazing. In saying that - is everyone getting an ad per minute or is it just me? Is google syncing our ads cos its driving me mad. Time to move all content onto TikTok Veritasium

  • Willfrye1980
    Willfrye198021 klukkustund síðan

    I have zero interest in this whatsoever. But I watched it all and loved every minute of it.

  • Diego Fernandes
    Diego Fernandes21 klukkustund síðan

    My brain!!! I LOVED THIS VIDEO!

  • Shaunak Dhekane
    Shaunak Dhekane22 klukkustundum síðan

    Quick question, why did the pendulums sync out of phase but all the metronomes synced to the same phase?

  • Big DogCountry
    Big DogCountry22 klukkustundum síðan

    ...periods in the amazon brigade

  • Friday’s are cool
    Friday’s are cool23 klukkustundum síðan

    Almost as if it was designed...

  • Pirom
    Pirom23 klukkustundum síðan

    7:30 Captain America and The Falcon first meeting 15:02 - happy 420

  • N
    N23 klukkustundum síðan

    Wait is this the same huygen who proposed why waves diffract through small gaps?

  • Beobout6
    Beobout623 klukkustundum síðan

    I really don’t care how it works, I just love watching 100 metrothingys all clicking together. How soothing!

  • C.T. E.
    C.T. E.Degi Síðan síðan

    The last comment about understanding. If understanding a way to get a grasp on things like disease and everything that is earthly would be a great first achievement. Then they can move on to the spiritual, worm holes and time travel. See all the parallel universes and dimensions. Everything seen and unseen is vibrating at an unknown resonant frequency. Our eyes can only see the light of this plane (earthly plane) that is vibrating. If only the eyes of our soul could see 👀 the spiritual plane, while still alive.

  • Christian Roi Cabel
    Christian Roi CabelDegi Síðan síðan

    When your heartbeat synchronized with someone you hug

  • Alejo Steinman
    Alejo SteinmanDegi Síðan síðan

    Where there's universe there's order, and where there's order there's God.

  • SurvivorCraft YT
    SurvivorCraft YTDegi Síðan síðan

    3:54 that happened with the flashers of two cars

  • Kevin Aldana
    Kevin AldanaDegi Síðan síðan

    This remember me to find the mcm

  • Aline Sanchez Ramirez Baruchi
    Aline Sanchez Ramirez BaruchiDegi Síðan síðan

    This is the kind of breathing and colour of those who saw something beautiful

  • Aline Sanchez Ramirez Baruchi
    Aline Sanchez Ramirez BaruchiDegi Síðan síðan

    Love makes him more productive, I guess

  • Sam Strohl
    Sam StrohlDegi Síðan síðan

    Damn, why doesn't this happen with blinkers when I'm driving

  • balcomoz
    balcomozDegi Síðan síðan

    I've tried that but it doesn't work. And I've used high quality digital metronomes

  • Kalo
    KaloDegi Síðan síðan

    Was watch this on tik tk and accidentally refreshed, glad u found it in here, wasn't expecting it to be the same video tho. Yay

  • Staarkalinou
    StaarkalinouDegi Síðan síðan

    great as usual 👍

  • Jukes McGee
    Jukes McGeeDegi Síðan síðan

    I NEED to know the music for that intro. What beautiful ambience.

  • IronPump89
    IronPump89Degi Síðan síðan

    Thanks, bifurcations and limit cylce oscillations are amazing !

  • mic jones
    mic jonesDegi Síðan síðan

    What if they tuned the " guitar strings" of the bridge to a different octive or different key?

  • fouoii gyhh
    fouoii gyhhDegi Síðan síðan

    so, similar to "when you stare into the abyss, the abyss stares back at you", "When you beat something into rhythm, that something also beats you into rhythm."

  • Elif Göksu Algın
    Elif Göksu AlgınDegi Síðan síðan

    does this mean all moons of all planets are eventually going to lock??

  • Xeno The Strange
    Xeno The StrangeDegi Síðan síðan

    Everyone here is secretly learning to code and they don't know it yet...

  • Sergio B. Meza C.
    Sergio B. Meza C.Degi Síðan síðan

    Very, very interesting. In the video, people looks like penguins walking...

  • FirstName LastName
    FirstName LastNameDegi Síðan síðan

    Does the fact that planets circle around their sun more or less in same plane also have a synchronization explanation? Also, I would perhaps think this plane is more or less perpendicular to the rotation axis of the sun ...

  • Soul
    SoulDegi Síðan síðan

    I know how every polyrhythm eventually syncs up on one beat even with vastly different rhythms like 34:83 or 12:95, a similar principle here.

  • Shamus Beaglehole
    Shamus BeagleholeDegi Síðan síðan

    Every prostitute should be forced to watch this video every day around 4pm.

  • Shamus Beaglehole
    Shamus BeagleholeDegi Síðan síðan

    All people are horses.

  • LUCIFER FPS - Fury
    LUCIFER FPS - FuryDegi Síðan síðan

    I saw this Nike red video. That dude does some crazy chemical experiments

  • watching Kung Fu Panda 2
    watching Kung Fu Panda 2Degi Síðan síðan

    12:29 What instrument is that ?

  • Memespeech
    MemespeechDegi Síðan síðan

    disorder and chaos are subjective terms

  • Joseph Ololade
    Joseph OloladeDegi Síðan síðan

    An intelligent designer made the universe Yahweh is his name

  • Lenard
    LenardDegi Síðan síðan

    9:53 synchronised clapping after chaos clapping is a cultural thing in Hungary, it may be due to what you said, but people do it consciously as it means ‘again’-for the performers to come out and bow etc

  • Tiago Vigil

    Tiago Vigil

    11 klukkustundum síðan

    It’s not just in Hungary, here in Brazil it’s exactly the same

  • Haͥppͣyͫ UK ๖ۣۜƤaͥτrͣiͫoτ
    Haͥppͣyͫ UK ๖ۣۜƤaͥτrͣiͫoτDegi Síðan síðan

    The law of entropy is not really about order in the sense of organisation and synchronicity. It's actually more about one very fundamental concept. For any process, the amount of energy available for work is diminished. As long as there is a difference of energy levels, there is a potential for a flow of energy and therefore a potential for work to be done. If all the energy in the universe was evenly distributed, things would be very orderly and synchronised, but the universe would be stone cold dead.

  • Rajesh Roger
    Rajesh RogerDegi Síðan síðan

    scapegoat central, no need for sorries or thank you. I don't care

  • Pranshu Aggarwal
    Pranshu AggarwalDegi Síðan síðan

    What was the last bit "How can you figure out properties of the whole given the properties of parts?"

  • yaogog
    yaogogDegi Síðan síðan

    best friend women can synchronise their periods

  • Abner Jr. Paredes
    Abner Jr. ParedesDegi Síðan síðan

    Quality content.. Love it

  • Mario Velez
    Mario VelezDegi Síðan síðan

    This has to be one of my favorite videos ever on ISsofts

  • E B
    E BDegi Síðan síðan

    The millennium bridge wasn't swaying because the people were walking in step, the people were walking in step in response to the lateral sway of the bridge. Their walking in step then caused it to sway ever more.

  • Captain Aryán

    Captain Aryán

    Degi Síðan síðan

    Then how were they supposed to 'walk' ?

  • Subhranil Majumder
    Subhranil MajumderDegi Síðan síðan

    @Prof. Steven Strogatz and @Veritasium, I believe the reason why it is hard to figure out the properties of whole given the properties of parts is because, of the level of mental activity human mind can reach in normal state. Due to the limited amount of energy our body can process, it becomes very hard to understand the bigger picture, which is relative in different people's case.

  • Tory Slusher
    Tory SlusherDegi Síðan síðan

    Coupled oscillation via vibrational transference, got it.

  • NEWS
    NEWSDegi Síðan síðan

    Well I am not auto synchronised to my missus, maybe I am a freak of nature?

  • Paradox G
    Paradox GDegi Síðan síðan

    Chaos and Order are not different to Nature.... They are 2 sides of the same coin.

  • Adrian Epic
    Adrian EpicDegi Síðan síðan

    Finally, something to adequately explain Aphex Twin's video, windowlicker. Thank you for your service, good sir.

  • Laksyians sTuDy TiMeS
    Laksyians sTuDy TiMeSDegi Síðan síðan

    Actually at all you challenge the physics.

  • Kelley McBride
    Kelley McBrideDegi Síðan síðan

    Super cool video thanks!

  • libertyn jeopardy
    libertyn jeopardyDegi Síðan síðan

    Obviously there is a God, unfortunately this fact is not obvious to many. Giving credit to "Nature" is naive and illogical.

    THANOS THEE TITANDegi Síðan síðan

    This can apply to all life, I’ll give you an example I was at a concert and somebody started a fight and somebody else in the crowd got angry and they started a fight, at the end of the concert it turned into a riot and everyone was starting to fight. This theory applies to everyone and that GOD is real, And synchronization is the key to the multi-verse.

  • Bellhop Walrus
    Bellhop WalrusDegi Síðan síðan

    I notice this happening in a line of cars, with their turn signals on. They'll sync up for a while, then go out of phase again, creating interesting rhyrmic patterns. I am very easily entertained.

  • Muhammed Shahbaz Sadiq
    Muhammed Shahbaz SadiqDegi Síðan síðan

    Very informative

  • miles andress
    miles andressDegi Síðan síðan

    Hey..babies in the nursery cry and dogs in a kennel bark out of sync...

  • miles andress
    miles andress2 dögum síðan

    So...if one clock out of would anyone know the correct time? He should have had a third clock as a tie breaker..or..better yet..a fourth clock for confirmation🤣

  • Carlo S
    Carlo S2 dögum síðan

    Your opinion on nature being chaotic and disordered is a subjective point of view. These smaller chaotic occurrences are part of a bigger order.

  • Leslie Henderson
    Leslie Henderson2 dögum síðan

    This is interesting, because when a group of women get together, like in a roommate kinda situation, then tend to get their periods at the same time!

  • Kim B

    Kim B

    5 klukkustundum síðan

    Not true

  • Counter Balance

    Counter Balance

    16 klukkustundum síðan

    I've had this situation at my former job.

  • Scott
    Scott2 dögum síðan

    So everything has a frequency including us humans. Everything living and inanimate is effected by frequency, however living things have a higher frequency than inanimate objects, and some humans have a higher frequency than others.

  • iBoolGuy
    iBoolGuy2 dögum síðan

    that was 20 minutes.....? i thought it was 6 yo

  • M Al
    M Al2 dögum síðan

    Gravity 👈 morons🤓

  • NO
    NO2 dögum síðan

    1 Hz seems worse than 2 Hz would be, but maybe I'm just not a civil engineer

  • iBoolGuy
    iBoolGuy2 dögum síðan

    “Entropy is the natural order of the universe.”

  • Grim Grinn
    Grim Grinn2 dögum síðan

    The man at the end sounded like David Bohm :)

  • WJ Stulp
    WJ Stulp2 dögum síðan

    yet another reason to realize God controls the entire universe.

  • As2000 the stop motioner
    As2000 the stop motioner2 dögum síðan

    Its same with my walk i literally Almost always walk the same speed in steps as the person Im walking with

  • Eric Singley
    Eric Singley2 dögum síðan

    Even more interesting is the oscillation in American politics...

  • VenB
    VenB2 dögum síðan

    Hehe penguins

  • David Perkins
    David Perkins2 dögum síðan

    Many years ago myth busters used a linear actuator on an old disused bridge, the movement was maybe 4 to 6 inches but after a while the resonance created a measurable sway within the bridge.

  • Guilherme Santana
    Guilherme Santana2 dögum síðan

    It was great to learn more about synchronization. It really helped me strengthening up my faith a little bit more. It reminded me of a God that puts order in chaos as Genesis 1-2 shows us. A God who holds all the wisdom and the secrets of cosmos (Job 38). A God who loves me and you with sacrificial love (John 3:16) and who will eventually put everything in place again (Revelation 22)

  • Muhammad Omer
    Muhammad Omer2 dögum síðan

    maybe fireflies were celebrating saying hip hip hurraaaaaaaaayyy

  • Dub Dado
    Dub Dado2 dögum síðan


  • Kenneth
    Kenneth2 dögum síðan

    This is very interesting. Great video. But does this also applies to lights? What if we had blinking multiple blinking lights? Does this apply too?

  • Art Mezins
    Art Mezins2 dögum síðan

    Two pedantic notes from a retired electrical engineer: [1] The bridge sync is like any system that has a resonance (and there may be more than one resonant frequency in a system). Electrical engineers routines apply "white noise" (randomness) to a resonant system to determine its resonant frequency(s). [2] When two timing sources are "close" in frequency, then something called a "beat" frequency results from the difference between the two frequencies. For example, if one is 0.1% different from the other (i.e. "close"), then there should be one "beat" every 1000 cycles. If 0.01% apart, then 10000, etc. Now if that frequency is from something slow, like a metronome or pendulum, say 1/sec, then you would have to wait 10000 sec (about 2.8 hours) before they sync, but only "momentarily", before they start to drift away. Then there's the "anti-beat" when they're motions are synced oppositely, at half the time, but repeats at the same frequency of once/2.8 hr. Now that also assumes that these are perfect timing systems with no animalities to throw a stick into the spokes, otherwise, more chaos ensues. Now multiply that to say 50 metronomes. The math gets more sticky, like the complexities of the 2-body vs. 3-body (or more) celestial orbital equations. But then computers were made to simulate is stuff so we humans can stay (mostly) sane. And this shouldn't detract from any enjoyment of the simplicity of the world around us, just know that it's there and the engineers (mostly) know how to address any issues that come along (albeit, after the fact sometimes).

  • Mujahid Faruq
    Mujahid Faruq2 dögum síðan

    I appreciate over exaggerated examples, thank you

  • David Milhous Carter
    David Milhous Carter2 dögum síðan

    14:12 Golden Ratio.

  • amine mk
    amine mk2 dögum síðan

    This universe and this life is not random, but meticulously designed by a higher thinker.

  • Its Mango
    Its Mango2 dögum síðan

    1:56 "They aren't part of an army" That's what you think

  • Dolzinfant
    Dolzinfant2 dögum síðan

    17:24 shouldn't it say swayed instead of suede in the subtitles? Fabulous video all the same...