The Secret of Synchronization

63 116 Weergaven 6 mln.

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


  1. Christian Roi Cabel
    Christian Roi Cabel
    13 seconden geleden

    When your heartbeat synchronized with someone you hug

  2. Alejo Steinman
    Alejo Steinman
    44 minuten geleden

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

  3. SurvivorCraft YT
    SurvivorCraft YT
    50 minuten geleden

    3:54 that happened with the flashers of two cars

  4. Kevin Aldana
    Kevin Aldana
    Uur geleden

    This remember me to find the mcm

  5. Aline Sanchez Ramirez Baruchi
    Aline Sanchez Ramirez Baruchi
    3 uur geleden

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

  6. Aline Sanchez Ramirez Baruchi
    Aline Sanchez Ramirez Baruchi
    3 uur geleden

    Love makes him more productive, I guess

  7. Sam Strohl
    Sam Strohl
    4 uur geleden

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

  8. balcomoz
    6 uur geleden

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

  9. Kalo
    6 uur geleden

    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

  10. Staarkalinou
    6 uur geleden

    great as usual 👍

  11. Jukes McGee
    Jukes McGee
    6 uur geleden

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

  12. IronPump89
    7 uur geleden

    Thanks, bifurcations and limit cylce oscillations are amazing !

  13. mic jones
    mic jones
    7 uur geleden

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

  14. fouoii gyhh
    fouoii gyhh
    7 uur geleden

    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."

  15. Elif Göksu Algın
    Elif Göksu Algın
    7 uur geleden

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

  16. Xeno The Strange
    Xeno The Strange
    8 uur geleden

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

  17. Sergio B. Meza C.
    Sergio B. Meza C.
    10 uur geleden

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

  18. FirstName LastName
    FirstName LastName
    11 uur geleden

    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 ...

  19. Soul
    12 uur geleden

    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.

  20. Shamus Beaglehole
    Shamus Beaglehole
    12 uur geleden

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

  21. Shamus Beaglehole
    Shamus Beaglehole
    12 uur geleden

    All people are horses.

  22. LUCIFER FPS - Fury
    LUCIFER FPS - Fury
    12 uur geleden

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

  23. watching Kung Fu Panda 2
    watching Kung Fu Panda 2
    13 uur geleden

    12:29 What instrument is that ?

  24. Memespeech
    13 uur geleden

    disorder and chaos are subjective terms

  25. Joseph Ololade
    Joseph Ololade
    14 uur geleden

    An intelligent designer made the universe Yahweh is his name

  26. Lenard
    14 uur geleden

    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

  27. Haͥppͣyͫ UK ๖ۣۜƤaͥτrͣiͫoτ
    Haͥppͣyͫ UK ๖ۣۜƤaͥτrͣiͫoτ
    14 uur geleden

    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.

  28. Rajesh Roger
    Rajesh Roger
    15 uur geleden

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

  29. Pranshu Aggarwal
    Pranshu Aggarwal
    15 uur geleden

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

  30. yaogog
    16 uur geleden

    best friend women can synchronise their periods

  31. Abner Jr. Paredes
    Abner Jr. Paredes
    17 uur geleden

    Quality content.. Love it

  32. Mario Velez
    Mario Velez
    17 uur geleden

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

  33. E B
    E B
    18 uur geleden

    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.

    1. Captain Aryán
      Captain Aryán
      16 uur geleden

      Then how were they supposed to 'walk' ?

  34. Subhranil Majumder
    Subhranil Majumder
    19 uur geleden

    @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.

  35. Tory Slusher
    Tory Slusher
    19 uur geleden

    Coupled oscillation via vibrational transference, got it.

  36. NEWS
    20 uur geleden

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

  37. Paradox G
    Paradox G
    20 uur geleden

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

  38. Adrian Epic
    Adrian Epic
    20 uur geleden

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

  39. Laksyians sTuDy TiMeS
    Laksyians sTuDy TiMeS
    20 uur geleden

    Actually at all you challenge the physics.

  40. Kelley McBride
    Kelley McBride
    21 uur geleden

    Super cool video thanks!

  41. libertyn jeopardy
    libertyn jeopardy
    21 uur geleden

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

    21 uur geleden

    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.

  43. Bellhop Walrus
    Bellhop Walrus
    22 uur geleden

    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.

  44. Muhammed Shahbaz Sadiq
    Muhammed Shahbaz Sadiq
    22 uur geleden

    Very informative

  45. miles andress
    miles andress
    23 uur geleden

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

  46. miles andress
    miles andress
    23 uur geleden

    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🤣

  47. Carlo S
    Carlo S
    23 uur geleden

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

  48. Leslie Henderson
    Leslie Henderson
    Dag geleden

    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!

  49. Scott
    Dag geleden

    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.

  50. iBoolGuy
    Dag geleden

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

  51. M Al
    M Al
    Dag geleden

    Gravity 👈 morons🤓

  52. NO
    Dag geleden

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

  53. iBoolGuy
    Dag geleden

    “Entropy is the natural order of the universe.”

  54. Grim Grinn
    Grim Grinn
    Dag geleden

    The man at the end sounded like David Bohm :)

  55. WJ Stulp
    WJ Stulp
    Dag geleden

    yet another reason to realize God controls the entire universe.

  56. As2000 the stop motioner
    As2000 the stop motioner
    Dag geleden

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

  57. Eric Singley
    Eric Singley
    Dag geleden

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

  58. VenB
    Dag geleden

    Hehe penguins

  59. David Perkins
    David Perkins
    Dag geleden

    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.

  60. Guilherme Santana
    Guilherme Santana
    Dag geleden

    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)

  61. Muhammad Omer
    Muhammad Omer
    Dag geleden

    maybe fireflies were celebrating saying hip hip hurraaaaaaaaayyy

  62. Dub Dado
    Dub Dado
    Dag geleden


  63. Kenneth
    Dag geleden

    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?

  64. Art Mezins
    Art Mezins
    Dag geleden

    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).

  65. Mujahid Faruq
    Mujahid Faruq
    Dag geleden

    I appreciate over exaggerated examples, thank you

  66. David Milhous Carter
    David Milhous Carter
    Dag geleden

    14:12 Golden Ratio.

  67. amine mk
    amine mk
    Dag geleden

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

  68. Its Mango
    Its Mango
    Dag geleden

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

  69. Dolzinfant
    Dag geleden

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

  70. Will Pablo Brazão Barletta
    Will Pablo Brazão Barletta
    Dag geleden

    The unstable base is the answer.

  71. Mahir Balushi
    Mahir Balushi
    Dag geleden

    Thanks 👍

  72. 46raulfull
    Dag geleden

    Wait is this why women living together get their periods around the same time?

  73. Wilmer Urbina
    Wilmer Urbina
    Dag geleden

    All this is common sense

  74. Salomea Brt
    Salomea Brt
    Dag geleden

    Is there a formula as to when does the sync happen? At least for something simple, like metronomes? Ah, this is some exciting stuff.

  75. Adam Stock
    Adam Stock
    Dag geleden

    woop nilered

  76. Abinash Pal
    Abinash Pal
    Dag geleden

    The big picture.

  77. Ricardo Cortez Calderon
    Ricardo Cortez Calderon
    Dag geleden

    Esto significa que nosotros volveremos al sol? (Se volvera a juntar la tierra con el sol xd incluidos otros planetas del sistema)

  78. Arda Ehi Ehi
    Arda Ehi Ehi
    Dag geleden


  79. Felicia Moniq
    Felicia Moniq
    Dag geleden

    Hmm. There must be a God somewhere?

  80. Jazeen Haral
    Jazeen Haral
    Dag geleden

    I always wondered why clapping would line up like that!! Omg. When I used to sit in chapel in high school (private Christian school) we would always end up clapping in sync. I would hear this and intentionally change my clapping, lol. I never knew this was almost a rule of nature

  81. 360 Nature Relaxation
    360 Nature Relaxation
    Dag geleden


  82. S. Garcia
    S. Garcia
    Dag geleden

    OK Now, -- Now that my friends is how you start a morning with your cup,of tea!! - Had more of my school-age and muddle adult pedestrian observations answered in 5-minutes than any other source -ever. Yep, gonna be a good many days after this, probably decades and lifetime what's remainning after this one. . .thanks..*

  83. Gods Squad
    Gods Squad
    Dag geleden

    God is amazing

  84. Gods Squad
    Gods Squad
    Dag geleden

    Lightening bugs not fire flies

  85. Abdel Rahman Khalil
    Abdel Rahman Khalil
    Dag geleden

    That is absolutely MIND BOGGLING سبحان الله

  86. Tristam Stone
    Tristam Stone
    Dag geleden

    Veritasium, can we please agree there is no experimental proof for entropy. If entropy is proven wrong over and over experimentally, if planets form from stars and organic life cycles thru life and death, exchanging disordered matter to then reorder. If we can consume elements like minerals and via enzymes convert them in to living cells then entropy is NOT REAL. Just the same as medicine, dogma exists. Entropy I hear over and over to explain time flowing in one direction... you don't need entropy!

  87. KReGaDeTH
    Dag geleden

    21 minutes to explain this? You should be ashamed.

  88. Thule Gezelschap
    Thule Gezelschap
    Dag geleden

    In Rotterdam a big bridge nearly collapsed when there was a dance parade and people where all jumping at the same time

  89. Livealkit
    Dag geleden

    12th standard education i guess

  90. Dominic Barden
    Dominic Barden
    Dag geleden

    Quality video!

  91. Heyoka Empath
    Heyoka Empath
    Dag geleden

    Human was a Metronom too.

  92. Jorge Brown
    Jorge Brown
    Dag geleden

    Reality is more fascinating than any theory. The magic attributed to the unanimated world is like a veil that prevents people to see its actual reality.And sometimes people becomes frustrated and even irritated when it is explained in simpler terms. The best example I know about it is when the great English poet Milton said Newton had removed the magic of the rainbow after Newton’s explanation of light.

  93. Nachiketh. D
    Nachiketh. D
    Dag geleden

    0:28 . GOD

  94. foe slow
    foe slow
    Dag geleden

    7:30 you can do better than that

  95. koyuncusonay
    Dag geleden


  96. Paul Binski
    Paul Binski
    Dag geleden

    So we could eliminate traffic jams by using wobbly roads? I'm pretty sure those traffic jams are the only event ignoring the laws of physics.

  97. Freedom Of speech
    Freedom Of speech
    Dag geleden


  98. Petros_TheBot
    Dag geleden

    So youre telling me that there will be a point of time that the entire people on earth will say the same thing or walk or jump the same?

  99. Marbles
    Dag geleden

    6:06 I can't be the only one seeing an army of marching swordsmen?