The Secret of Synchronization

31-Mar, 2021
6 883 516 Ko‘rishlar soni

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
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

  • nile red

    Piper MahonPiper Mahon2 soat oldin
  • 46 and 2 is a song about synchronization

    eyewazeareyewazear6 soat oldin
  • 3:33 this is very disturbing looking

    Tanner WTanner W8 soat oldin
  • spiral out keep going spiral out keep going spiral out keep going spiral out keep going

    Devin GrbaDevin Grba11 soat oldin
  • Is not even Synchronizing, because Synchronization is one will remain constant and the other will adjust to it. From what i see, All things are trying to adjust to each other and it is called neutralization. But i cant deny the video it self was Amazing. Beware of Vertical Paradox.

    Kataka Zikato TekikaziKataka Zikato Tekikazi14 soat oldin
  • It takes a dutchman to figure things

    Foster HellendoornFoster Hellendoorn16 soat oldin
  • what's the song at 15:30 ?

    Berserk 007Berserk 00719 soat oldin
  • The fireflies flash together in Tennessee in the Great Smokey Mountains National Park. I took my daughter to see them about 17 years ago. Awesome. ❤️

    Zizi RobertsZizi Roberts22 soat oldin
  • ok. i was also hoping for more philosophical and human and metaphysical side of synchronization....the feeling of "everything falling in place"....thats synchronization too and much more important to be analyzed than for the inanimate one which is easy.

    hiPsDonLiEhiPsDonLiE23 soat oldin
  • Yes this is definitely more important than homework.

    LuigiLuigiKun oldin
  • How did anyone think putting a foot down as was half step. Just because the cycle was half through doesn't mean the imparted energy was only forwards or backwards or in one way. It makes me wonder how much science needs retrospective peer review... But i shouldn't be surprised of course, because until things break who would pay for the research. The potential volume and magnitude of errors in thinking and subtle misunderstandings lurking beneath what most put their faith in without question - documented scientific discovery - is truly sobering.

    tttm99tttm99Kun oldin
  • It looks like scientists need more dialectical materialism to understand the totality better.

    Горькие УсыГорькие УсыKun oldin
  • How does this affect us humans ? like..our brains...the collective conscious ?

    Blu BerryBlu BerryKun oldin
  • So what's the secret of synchronization?

    Ипполит МатвеевичИпполит МатвеевичKun oldin
  • how precise is 2 pendulum clock Synchronization ? do they sync up perfectly ?

    BafelmaukBafelmaukKun oldin
  • I hate the frog LYAGULYALYULIN its impossible

    Вадим Владимирович ТимофеевВадим Владимирович Тимофеев2 kun oldin
  • It is the way God made it. Nature doesnt use anything it is all God.

    Troy Ward JrTroy Ward Jr2 kun oldin
  • nile red and veritasium are just amazing youtubers

    Cool LegendCool Legend2 kun oldin
  • Strong evidence for a universal creator. Clearly an intelligent design.

    Rojar JonezRojar Jonez2 kun oldin
  • Some guy named Joshua in history did this and took down the grand city walls of Jericho. Just walking, huh?

    Darrell BorderDarrell Border2 kun oldin
  • This video makes perfect scence if you are into non duality and spirituality or even if you just understand and approve of it. Everything is one and at the end everything balances out, there is chaos and there is balance, they both work together to give us perfect harmony. Great vid 👍

    I HaveNoGunGameI HaveNoGunGame3 kun oldin
  • 19:20 was that a cut???

    Tacotoots12Tacotoots123 kun oldin
  • Who the hell give dislike to such a gread video? Anything wrong with it?

    bmq34bmq343 kun oldin
  • Hi. This night I was at a concert, and at the end it dawned upon me that the applause didnt synchronize the same way it usually does, unlike shown at around 10:00. Due to covid-19 we, as individuals, havent been attending consert etc. And we were sitting with distance. I wonder if it could have a connection?

    Simon Mølgaard HansenSimon Mølgaard Hansen3 kun oldin
  • I love the guest guy, he was so enthusiastic!

    Kian FKian F3 kun oldin
  • The young son of a friend of mine who had a heart transplant at 17 now at 19 his heart failed. He is alive and getting better at LA children hospital. But from your minute 14 it is quite amazing to visually see the electric representation of a heart failure. His dad told me about heart electrical specialist working on him or with him. I did send him this utmost pertinent link. Thank you!

    vicarioustubevicarioustube3 kun oldin
  • great vid but isnt the moon pulling itself further from earth? meaning its not completely in sync with the earth? with the right equipment and the panels that the astronauts put on the moon we can observe that phenomenon

    sergio gonçalvessergio gonçalves4 kun oldin
  • I clicked on this video only expecting to watch a couple minutes of it. I made sure to like and subscribe when it was done 👍

    Arctic lamaArctic lama4 kun oldin
  • It's pronounced pendulum not pendalum

    Fletcher JohnsonFletcher Johnson4 kun oldin
  • Oh you really don't need the cheap red arrow click bait on the thumbnail.

    EricEric4 kun oldin
  • I'm from Russia and I watch your videos, but I watch your videos from another channel that does Russian voice acting. But I still go to your channel looking for the right video and put a like. It was you who instilled in me a love for physics and I would like to say a huge thank you! You probably won't even read this comment, but I still want to write it. Thanks!

    Кабаняра КлыковКабаняра Клыков5 kun oldin
  • i should be paying for this

    Ernest GonzalezErnest Gonzalez5 kun oldin
  • You can’t understand the whole with the sum of its parts unless you first know who made the parts.

    Shawn SavageShawn Savage5 kun oldin
    • So I can't understand 10= 9+1 completely? Good to know

      Aarya JainAarya JainKun oldin
  • Man if this doesn’t make you believe in God idk what will

    Shawn SavageShawn Savage5 kun oldin
  • God made nature to function this way. How awesome is that!

    Shawn SavageShawn Savage5 kun oldin
  • Without God there is no order, He sets everything in order!

    Shawn SavageShawn Savage5 kun oldin
  • must be why iv never heard of or seen this bridge and work in london

    Family ThreeFamily Three5 kun oldin
  • Outstanding demonstration , well said.

    Halima NasrinHalima Nasrin5 kun oldin
  • Someone please share the secret of synchronization with the Windows OS, because for more than 15 years not a single Windows machine I've ever had has successfully sychronized with a time server, not even once.

    FenrirFenrir6 kun oldin
  • Me watching the video : 15:02

    Schwatzen zeroSchwatzen zero6 kun oldin
  • Veritasium : "So u naturally expect universe to be *MESSI* " Ronaldo fans : Nooo, i expect the universe to be Ronaldo.

    The Wolf GamingThe Wolf Gaming6 kun oldin
  • It also brought all the fighters to the strongest being on earth.

    Pilton JonesPilton Jones6 kun oldin
  • Fun fact my last name is lento it’s also on metronomes 50bpm

    James LentoJames Lento6 kun oldin
  • Fantastic video

    asher plattsasher platts6 kun oldin
  • How is clapping mysteriously synchronised?? We adjust our clap due to the overall sound and by watching those next to you. This is using our own human abilities.

    Tim JesselTim Jessel6 kun oldin
  • Women can even synchronize their periods if they get in to a close group for some time.

    Open HeartOpen Heart6 kun oldin
  • 19:05 "that's why we don't understand immune system very well... " Now that's some sort eye opening, especially theese days

    zokonjazokonjazokonjazokonja6 kun oldin
  • I'm not sure about the relation of fireflies, might it also be compared with sociology, people in large crowds now behaving as themselves because of how the crowd or atmosphere is, like a starling murmurstion perhaps? Very very interesting

    Cleveland explorerCleveland explorer6 kun oldin
  • Does this happen also to larger celestial bodies, planets oscillating around stars, stars around galaxies or even black holes?

    Juan David Navarro OrtegaJuan David Navarro Ortega6 kun oldin
  • The kiwiko crate won't ship to my country... Devastated 😭

    Airbag888Airbag8886 kun oldin
  • This is one of my favorite videos on UZworld.

    Bottom Dollar Outdoors: Hunt. Fish. Grow.Bottom Dollar Outdoors: Hunt. Fish. Grow.6 kun oldin
  • plot twist : living in computer reality , just crashes after 155 player in same area and fix script working

    Ali Fatih YılmazAli Fatih Yılmaz7 kun oldin
  • The water doesn’t freeze at the same time...but I suppose y’all put that in there to screw with smart people and trick us into commenting 😭

    Bunny Bevy TVBunny Bevy TV7 kun oldin
  • This is vibration space time stuff

    Kris StepkeKris Stepke7 kun oldin
  • 13:50 imagine filling a pool with that stuff

    Jacob GardiepyJacob Gardiepy7 kun oldin
  • Millenium bridge pays homage to millenials. i.e. complete failures.

    The GornThe Gorn7 kun oldin
  • 2:16 "Famous Dutch physisis Christiaan Huygens" Everyone: "who?"

    The GornThe Gorn7 kun oldin
  • Can we see a similar pattern in the collection of thoughts in society?

    Jacob HoodJacob Hood7 kun oldin
  • How can we not understand the economy we as humans invite it. It's not part of nature or science

    TwistedVNMTwistedVNM7 kun oldin
  • Next time you are in traffic look at the turn signals they will synchronize then get out of synchronization then get back into synchronization

    TwistedVNMTwistedVNM7 kun oldin
  • i wonder, why is it when i'm at an intersection, blinkers synchronize aswell

    Tiny TuberTiny Tuber7 kun oldin
  • This makes me think of when I’m at a stop light and my blinker starts syncing up with the car in front of me for a few seconds

    Q QQ Q8 kun oldin
    • Or when your bouncing your leg and notice the person nearby is bouncing in sync

      Metalman ExtremeMetalman Extreme3 kun oldin
    • It only happens when you watch it.

      bipedalbobbipedalbob5 kun oldin
  • Thats is an amazing insight- thank you for showing and explaining ?

    Stephen BirksStephen Birks8 kun oldin
  • 0:06 In NY I milly rock

    Miguel VMiguel V8 kun oldin
  • Adam Neely has entered the chat.

    Mirdjan HyleMirdjan Hyle8 kun oldin
  • The notion of the moon “rotating about its axis” has bugged me for a while and I think it comes down to the definition of rotation. When viewed from a fixed Newtonian frame of reference, as in your animation, an observer sees all sides of the moon, hence you could say it’s rotating. But it’s not rotating about its own axis. Once the moon has been tidally locked, it no longer rotates about its axis. The analogy would be the pedal on a bike where the pedal is the moon and the center of the crank is earth. If you held the pedal and did one full rotation the pedal would rotate about its axis and the “earth” would see all sides of the crank. But an observer in the room would only see one side of the crank. If instead you did not touch the pedal but rotated the crank one revolution, the pedal would clearly not rotate about its axis and the “earth” would only see one side of the pedal...but someone standing in the room would see all sides of the pedal and hence say that it was “rotating”.

    Allan SalzmanAllan Salzman8 kun oldin
  • explaining his first experiment. That was very cool to see.

    eioshen boboieioshen boboi8 kun oldin
  • What if several metronomes were set on a large plane that sit on balls instead of cylinders and the metronomes were facing towards the center in a square shape

    Collin WilkersonCollin Wilkerson8 kun oldin
  • 15:06 19:00 lol you seems convinced

    some timesome time8 kun oldin
  • I would like to know why fireflies will decide to gather around a random individual......and light up.... is it smell? It’s like they are in unison and in step with you and not anybody else around you.....odd

    Lisa GunnisonLisa Gunnison8 kun oldin
    • Rocket Ei are)uuuu

      eioshen boboieioshen boboi8 kun oldin
  • 9 million subscribers. He makes an episode featuring pendulums and can't get software that even comes close to illustrating pendulum motion. 🤨

    WeTubuleWeTubule8 kun oldin
  • we were 3-4 friends, alwys cycle together. i always used to think "How r we doing this or y r we doing this"

    Navin Singh screenNavin Singh screen9 kun oldin
  • In a complex system, chaos is the norm Women: hold my beer

    DarkDark9 kun oldin
  • Chinese medicine is about the property of the whole for human body instead of part by part. It looks at human body as one whole system. Unfortunately not so many people believe in it anymore...

    WendyWendy9 kun oldin
  • 15:01 Mr. Veritasium is Not impressed! 19:03 Mr. V. continues to be unimpressed

    WillarazWillaraz9 kun oldin
  • To be fair, the audience in Bucharest isn’t a part of the synchronization phenomenon. One person decides it’s time to do a slow-clap and build-up, and that person’s friend or the person on the other side thinks it’s a good idea, they get louder, people generally like the build-up of a slow-clap, and everyone chooses to get in on it.

    Zizi MugenZizi Mugen9 kun oldin
  • Based

    juanito arcoirisjuanito arcoiris9 kun oldin
  • I didn't know Christian Huygen was the singer of Led Zeppelin!

    Rusty ShacklefordRusty Shackleford9 kun oldin
  • Perfect harmony in creation. It’s a beautiful witness

    PlaySomething!PlaySomething!9 kun oldin
  • Yeah, you need another ad at 2 mins. No thanks. This entire video is based on a loose FALSE claim and a complete lack of understanding the fabric of the universe.

    Deep Thoughts RadioDeep Thoughts Radio9 kun oldin
  • Please make a video on Hindu calender, it is based on periodic nature of planets, and no error like we have... Leap year

    Mohit SharmaMohit Sharma9 kun oldin
  • If people clap in same time, it's because they want a "rappel (in french)". They want the artist back on the stage.

    Ethan In DeoEthan In Deo9 kun oldin
  • I once was taking a bath when I was 3 and got bored so I started to slide back and forth long ways and apperently I that enough I could not stop moving I would sit still and the water would pull me back and forth it took a while to slow it to a stop

    Sarah JusticeSarah Justice10 kun oldin
  • Rocket Ei are)uuuu

    Lillian EzeskyLillian Ezesky10 kun oldin
  • Wwwwwwwwwwwqssssss Rocket Ei are)uuuu

    Lillian EzeskyLillian Ezesky10 kun oldin
  • Everything has their own signature, also known as frequency and/or vibration.

    Phylum SìPhylum Sì10 kun oldin
  • Play 2 or more frequencies like 100hz and 100.1 hz You will hear it synchronise and go out of tune A sawtooth is best for this...

    plasma globe kid [PGK]plasma globe kid [PGK]10 kun oldin
  • Why am i underwelmed with this whole thing, like i get it but like, its just like duh, stuff movin that has weight tansfering weight and effecting the other object that is moving and it sinking up with eachother..

    Patrick bennett`Patrick bennett`10 kun oldin
  • The synchronized clapping sample is somewhat erroneous. People consciously adjust clapping based on mental influences, such as to keep tempo with a band playing music. If people were to naturally start clapping in unison it would seem so odd that they would likely adjust their clapping to be out of sync. Unless, of course, they were keeping time with music or some form of ritual chant. But then their synchronized clapping would be a conscious decision, not a natural phenomenon.

    HL9GY KoreaHL9GY Korea10 kun oldin
  • shoutouts to gurren lagan for the Spirals

    WULFAXEWULFAXE10 kun oldin
  • We are all just puppets to the universe..

    DUGGIDUGGI10 kun oldin
  • In a typical 20min Veritasium video, there is always a 2min period which put a smile on my face and tears in my eyes at the same time.

    kilaru kartheekkilaru kartheek10 kun oldin
  • Ah, randomness. Secret solved.

    99SamIAm9999SamIAm9910 kun oldin
  • This was such a cool video.

    Jhon SmithJhon Smith11 kun oldin
  • This is common knowledge to those EE's who have designed all kinds of programmable oscillators with a limited Capture Range that depends on the Q of the resonator Q=fo/BW (-3dB ). Remember old TV's with Horizontal and vertical sync? There are other factors like Barhausen Criterion (Loop gain must =>+1) It also depends on phase compensation and phase/gain margin . Old TV CRT's worked with manual tuning the flyback oscillator so that it synced up to the TV signals. This was an injection locked loop (ILL) like the pendulums. Then came stable crystal oscillators were used with Phase Locked Loops (PLL) with phase mixers and filters. The internet and telephony uses Stratum 1 to 3 synchronized clocks all synchronized to a Cesium global clock. Then there are ATM's that are pleisiochronous or "almost" synchronous. The formula for this capture range is nonlinear partly from positive feedback and because of the Barkhausen criteria where damped oscillations may get amplified to sustain oscillations such that the loop gain must be >=+1 After which soft limiting stress keeps it a more or less sine wave and dampens the oscillation to be steady like the Wein (Wien?) Oscillator. The harmonic content of bridge failures is because Civil engineers didn't understand what EE's already knew about harmonic content (THD) and intermodulation (IM) distortion, where nonlinear materials create sub-harmonic (sum and ) difference frequencies. This is fundamental to all radio design. (no pun intended). The theory of the whole being greater than the sum of the parts is also a passion to me and my son who described to me his theory that global consciousness of brain waves sometimes matches the Schuman frequencies of upper ionospheric magneto resonance from solar flares pinging the magnetic ring fields around earth and some get into sync like the old TV Hsync injection oscillators.

    Anthony StewartAnthony Stewart11 kun oldin
  • Aren’t Jupiter’s moons spinning in a 1,2,4 motion based on Kemplars law?

    markhrabemarkhrabe11 kun oldin
  • Simply think in terms of vibrations, vibration should he evenly distributed along the system, it can only be achieved when in sync.

    Kartikey SinghKartikey Singh11 kun oldin
  • If we all start the video at the same time... then pause and play every second, maybe we could crash Google's servers??? 😜

    Andrew StevensonAndrew Stevenson11 kun oldin
  • I don't think the audience in Budapest was real.

    Orphan Of OrbitOrphan Of Orbit11 kun oldin
  • Life is a spiral towards balance.

    Orphan Of OrbitOrphan Of Orbit11 kun oldin