The Surprising 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 - www.complexity-explorables.or...


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
Simulations 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

  • Tj Jumlani
    Tj Jumlani

    Will the metronomes synchronize in space ? Have this experiment done in space ?

  • Kieron Seymour-Howell
    Kieron Seymour-Howell

    Back in high school we nearly tipped over a full-sized achool bus by everyone rocking from side to side in sync... and yes we got in HUGE trouble. We managed to get the wheels of the 10,000kg buses wheels to actually leave the ground on each rock, before the screaming driver made a hasty appearance; he was seriously freaked out.

  • Mike S
    Mike S

    The explanation of tidal locking was good, thanks for including it.

  • Funny Frog Bree
    Funny Frog Bree

    For the clip of people clapping. That's not scientific at all. That's people being people

  • IceFalken Ace
    IceFalken Ace

    Love how the volume suddenly doubled near the end of the video. I'm sure my apartment neighbors loved it as much as I did. Thanks guys!!

  • IceFalken Ace
    IceFalken Ace

    Every time I hear the, "synchronous" sounds I'm still heading 2 distinct, "clicks". I'd imagine I'd only hear one. I suspect people and bridges happen because of sway in their shared mounting locations and people do it because we tend towards cooperation.

  • James Hagle
    James Hagle


  • S M
    S M

    You've got 5k dis-likes. Either you have 5 thousand people who are so smart this is just boring. However, its probably 5 thousand stupid people to busy twerkin or supporting Biden's adm. to learn.

  • xfire7

    Its not magic , its newtons third law . We in Britain learnt this centuries ago .

  • Nunzio Turtulici
    Nunzio Turtulici

    I guess electromagnetism is "simply" synchronization between particles.

  • Tuan Nguyen
    Tuan Nguyen

    Two women, college roommates, would synchronize their menstrual cycle too. That's just amazing. If I don't believe that I'm living in a computer simulation, I should.

  • Nunzio Turtulici
    Nunzio Turtulici

    GREAT video! Really, one of the best I watched in the last months. However I am a young mathematician and I had knew to avoid frequencies rationally multiples of the resonant frequency of the bridge. They should have call a musician. However liked very much the conclusion too. Really, thank you.

  • Colin McCauley
    Colin McCauley

    this is one of the most informative and fascinating videos I have seen on UZmilk. thank you.

  • J.A. Brown
    J.A. Brown

    Who wrote these captions?? It looks like they weren't really thinking about what they wrote lol

  • joe jones
    joe jones

    it's lonj-atude not long.

  • Harry Canary
    Harry Canary

    That was England's bridge to the future ? Someone was trying to give them a hint !

  • Harry Canary
    Harry Canary

    Fascinating and amazing ! Imagine all the other things waiting to be discovered !


    Entropy is not disorder.

  • Zeng xx
    Zeng xx

    good video

  • slayer 1
    slayer 1

    Chaos and order are specific times in relation to external criteria

  • The_Final Ascent
    The_Final Ascent

    This comment is sponsored by Spam-Me-Not - get 100% off all orders that you never place.

  • RedBaron 71
    RedBaron 71

    I should be going to bed but this is too cool

  • Scotty

    Why is earth not tidally locked?

  • summer

    This somewhat reminds me off human wave in a concert

  • Yop Yop
    Yop Yop

    ads in every 3mins jesus........i'm not gonna watch this anymore

  • joracer1

    Put the metronomes on a solid concrete pad then see what happens...

  • VanessaLou Conti
    VanessaLou Conti

    I’ve only ever heard Prof. Stogatz’s voice on Radiolab. It was so comforting to actually see him.


    When there’s enough people in a room together their heartbeats can synchronize as well… I’m surprised that this video didn’t cover this phenomenon as well.

  • Flinch

    Wave theory and resonant frequency of objects: attach three things together, that is a new resonant structure - singular.

  • Kelly Wright
    Kelly Wright

    Umm... Professor Strogatz, I was told that there wouldn't be any math in this video.

  • ZoZoRemRem

    In order to make time go by faster while sitting in traffic in a turning lane, I wait for all turning signals to synchronize.

  • Moonlight Sentinel
    Moonlight Sentinel

    caralho mt louco

  • Billy Mays
    Billy Mays

    I noticed this with vehicle blinkers when I was little

  • Robert Martin
    Robert Martin

    I would suggest this is how life would have begun as well. Cells synchronizing would make sense for life to develop. The God molecule

  • Robert Landers
    Robert Landers

    We are obviously living in a living organic environment composed of a rapidly growing environment

  • Robert Landers
    Robert Landers

    Isn't it coincidental that our galaxy is a spiral?

  • Juli L
    Juli L

    I love how all of this also lines up with the Fibonacci sequence

  • Rich DeOliveira
    Rich DeOliveira

    I like the way you transitioned from the ad mention at first then straight into the topic

  • David Torell
    David Torell

    The mentors

  • Violet Rose
    Violet Rose

    Satan controls synchronicity matrix minds humans earth only when God lifts your veil and brings you back to him through his son Jesus will you ever know the only truth,thus life is saran sin infested corrupted beyond repair ,God's new earth and eternal kingdom through his new creation of being born again is the only way to an eternal life,so if your living as if this one is all there is I humbly suggest seeking God and his word asap as these are last days

  • nigel pearce
    nigel pearce


  • TheRabidCabbage

    Well, unfortunately for your son. This world isn't kind to free thinkers these days.

  • Mary K
    Mary K

    The words "disorder" and "chaos" when applied to physics/mathematics is often misunderstood. Something that appears like order to our human brain can and is perfectly in accordance with the second law of thermodynamics. And chaos is just a dynamical system.

  • Timsah Yaşar
    Timsah Yaşar

    sizler gelirken biz gidüydük

  • Storm Holmboe
    Storm Holmboe

    I hate lettuce

  • Johann Imbert
    Johann Imbert

    Simply fascinating !

  • Homeless Rob
    Homeless Rob

    This is going straight over me noggin

  • Smatchet

    I learnt something new and interesting today. Thank you so much!

  • BoT-Kun

    Why am I watching this? Idk. But what I know is, the fact that I can flex now with it.

  • a d31
    a d31

    Dang it! Why did this video end!?

  • Thomas

    loool if you press the c key you can turn subtitles on and of

  • You3D

    What happens when synchronicity threatens your status quo?

  • HAri Das
    HAri Das

    this should be thought in schools

  • Kenny Westone
    Kenny Westone

    I've experienced the clapping many times, that's just how Hungarian people clap, I think it has nothing to do with clocks or metronomes.

  • J Valentine
    J Valentine

    It's not disorder . We only think it's disorder because we can't see , understand or recognize the order .

  • 111111111Tiger

    ALL is ONE !

  • David Canatella
    David Canatella

    There is no such thing as disorder

  • Ninja Tokes
    Ninja Tokes

    I learn more from this single video than 11 years in school.

  • Vijay Malayil
    Vijay Malayil

    When I hear the Veritasium signature theme, I'm like "ohhh yeah, Science. Hit me!"

  • frank tomasic
    frank tomasic

    Beautiful design built in

  • Biff Tannen
    Biff Tannen

    It is as though the Universe prefers organization to chaos.

  • GEARS 1984
    GEARS 1984

    Because we're in a simulation. Hence, a mathematical equation Hence, part of a plan Hence, we're all connected Hence, God's children.

  • Tess C.
    Tess C.

    I find it ironic that the ad that played before the video was for a Always flex fold pads... 😆 wtfrick

  • Bedford

    I feel like the same phenomena of synchronization discussed here is related to the same ability that birds and fish have to move together, all moving together, and change direction at same time and move as one body. Like how a school of fish will all off sudden all change direction at same time. Birds can do the same kind of thing flying in the migratory groups.

  • T Y
    T Y

    Order is a subjective term

  • waxensafe

    Where are my Baki fans at??

  • Chandan Pradhan
    Chandan Pradhan

    emergence... what an amazing macro effect

  • androidconfusion

    That’s a lot of math to say it’s easier for me not to step on the person in front of me if I walk in sync with them.

  • Ellie Roome
    Ellie Roome

    Really great video, thanks. Would be wonderful to have more female representation too please!

  • Swalfire

    why is 15:02 so funny to me

  • Jesse Glanville
    Jesse Glanville

    Nature does not have natural disorder. It's the opposite. That's why math supposedly rules the universe. If there was disorder, then the math wouldn't ever work out.

  • Eve Nacio So
    Eve Nacio So

    Whoever gave this video a thumbs down can you please explain why?

  • Isidro Gonzalez
    Isidro Gonzalez

    I was just wondering why at red light when have my blinker on I noticed it’s flashes at a different pace as the car in front of me but after a few seconds they synchronize for a few blinks but get unsychronized again

  • Disorder82

    Synchronization is when gravity goes beyond words.

  • R. Carter
    R. Carter

    The wind is contributing to the shake of the bridge. The people are "marching together" because they are compensating for the shaking of the bridge which is making it worse.

  • B Kopp
    B Kopp

    Is it just the measurement of time that does this, or can time itself also get back in sync? If so, how does time itself get out of sync in the first place?

  • Smart Smart
    Smart Smart

    God's law!

  • spudnick1uk

    I would like to know how the 8th one from the left on the front row is out of sync. Now that magic. :)

  • Amy 00700 !
    Amy 00700 !

    When you learn more from a video then in one day at school o.o

  • StateWench 2
    StateWench 2

    I was left with a question. Why do the moons of Jupiter sync at 1,2,4? I seem to recall that ALL time loops down to this.

  • Jews hate you study Kalergi Plan, Talmud & Loxism
    Jews hate you study Kalergi Plan, Talmud & Loxism

    Google "Who received the largest criminal fine in history?"

  • P M
    P M

    Nature is so intelligent. God like one might say.

  • Matthew Fox
    Matthew Fox

    This said a whole lot without saying anything making people think they learned everything LMAO good production

  • Merlin

    So that's why periods sync up

  • Señor Manzana
    Señor Manzana

    When there's multiple cars with turn signals I love watching them until they slowly synchronize

  • baltasavr

    это физика, ...ть!...

  • the Fully Unhinged
    the Fully Unhinged


  • Veli Macchia
    Veli Macchia

    yep...putting the parts all together escapes us wrt climate and pandemia

  • Wesley Martens
    Wesley Martens

    The moon is locked HAHAHA you FOOLS !

  • Thokozane Ngcongwane
    Thokozane Ngcongwane

    I have never learned anything as fascinating and as entertaining, within 20 mins, as I have now. This is beautiful!

  • Winter After Fall
    Winter After Fall

    Now Lunox's line "You can't have order without chaos" make more sense to me.

  • Slick

    It’s called music 🎶

  • Prajyoth Pradeep
    Prajyoth Pradeep

    Clearly...for the millennium bridge function followed form and it was a case of poor engineering.

  • Ebrelus

    Wow his sponsor actually makes something useful for humanity. So rare in these retarded times...

  • gary jones
    gary jones

    God gave man free will which aligns with your topic. The synchronization at close range is what God wants us to do with him,.... be in close range and synchronize. Combining faith with who you are in sync with is what Jesus preached all about.

  • mj sayooj
    mj sayooj

    Everything we feel ! We see is edited by someone who knows the answer for everything..

  • BHP

    Wide moon 11:10 PUTIN APROVES

  • gansosmansos

    This is FASCINATING!!

  • o


  • SamiTheAnxiousBean

    This video is so high quality I love it!!! the effort here also did you hurt yourself when the thing you used for the wheels of the platform fell? hopefully it didn't land on your foot or anything