The Secret of Synchronization

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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

Henny Yang
Henny Yang Timme sedan
The late hope adversely double because mice basically whip without a lethal lily. abiding, silly message
D Solis
D Solis 3 timmar sedan
Every time I go to a concert I go y a higher point to see the people… is funny how they oscillate and when somebody pushes how the wave spreads on the particles
Michael Thomas
Michael Thomas 4 timmar sedan
Watchin 2160p
CJ Cheifer
CJ Cheifer 5 timmar sedan
On the bridge, they should've all squeezed in the middle and walked sideways. Problem solved.
dopiaza2006 6 timmar sedan
The movement of those animated pendulums is very annoying. Not natural at all.
nicos goulielmos
nicos goulielmos 6 timmar sedan
Amazing video, extremely good presentation of very complex subject.Thanks
i love waflz
i love waflz 10 timmar sedan
Pendulum best deck
Nicool Man
Nicool Man 10 timmar sedan
Ooooh that's where the Nilered profile picture came from
Justin Davis
Justin Davis 14 timmar sedan
The music playing with Jupiter's orbits by way of polymeter as a subtle bed over the explanation was just brilliant
Kurt Cunningham
Kurt Cunningham 18 timmar sedan
The an,,swer, to your question is consiousness
Didier Loiseau
Didier Loiseau 22 timmar sedan
I always love to control the synchronization of a group of people clapping, it’s not very hard to trigger it (maybe with the help of a friend or two) and to break it.
Kolvorok Dag sedan
Somebody has read a certain mathematician's book ;-)
Sira Vista
Sira Vista Dag sedan
Another amazing jaw dropping video.
fvirk Dag sedan
I'm a Graphic Designer. I have no relation with this knowledge. But it is very interesting. I subscribed. Keep it up.
jacob yeager
jacob yeager Dag sedan
Wait.. is Ve atomocal number... 42.0?? Omg
Louis Markosian
Louis Markosian Dag sedan
Wouldn’t the fire fly analogy be better suited towards the law of large numbers?
Rob P.
Rob P. Dag sedan
This was your best video so far ....
3ric Car
3ric Car Dag sedan
is this why female minstrel cycles sync?
Carlos Silva
Carlos Silva Dag sedan
hummm Can we have synchronization in ultrasonic waves? If we have 4 sensors in the car, will the waves synchronize and be a source of error?
Nilson G Silva
Nilson G Silva Dag sedan
Why do Veritassium has a mass number equals 42.0 and Atomic Number equals i?
Ilgar Roshen
Ilgar Roshen Dag sedan
20:26 You are a great father
Piper Mahon
Piper Mahon 2 dagar sedan
nile red
eyewazear 2 dagar sedan
46 and 2 is a song about synchronization
Tanner W
Tanner W 2 dagar sedan
3:33 this is very disturbing looking
Devin Grba
Devin Grba 2 dagar sedan
spiral out keep going spiral out keep going spiral out keep going spiral out keep going
Kataka Zikato Tekikazi
Kataka Zikato Tekikazi 2 dagar sedan
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.
Foster Hellendoorn
Foster Hellendoorn 2 dagar sedan
It takes a dutchman to figure things
Berserk 007
Berserk 007 2 dagar sedan
what's the song at 15:30 ?
Zizi Roberts
Zizi Roberts 3 dagar sedan
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. ❤️
hiPsDonLiE 3 dagar sedan
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.
Switzel 3 dagar sedan
Yes this is definitely more important than homework.
tttm99 3 dagar sedan
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.
Горькие Усы
Горькие Усы 3 dagar sedan
It looks like scientists need more dialectical materialism to understand the totality better.
Blu Berry
Blu Berry 3 dagar sedan
How does this affect us humans ? like..our brains...the collective conscious ?
Ипполит Матвеевич
Ипполит Матвеевич 3 dagar sedan
So what's the secret of synchronization?
Bafelmauk 3 dagar sedan
how precise is 2 pendulum clock Synchronization ? do they sync up perfectly ?
Вадим Владимирович Тимофеев
Вадим Владимирович Тимофеев 4 dagar sedan
I hate the frog LYAGULYALYULIN its impossible
Troy Ward Jr
Troy Ward Jr 4 dagar sedan
It is the way God made it. Nature doesnt use anything it is all God.
Cool Legend
Cool Legend 4 dagar sedan
nile red and veritasium are just amazing youtubers
Rojar Jonez
Rojar Jonez 4 dagar sedan
Strong evidence for a universal creator. Clearly an intelligent design.
Darrell Border
Darrell Border 4 dagar sedan
Some guy named Joshua in history did this and took down the grand city walls of Jericho. Just walking, huh?
I HaveNoGunGame
I HaveNoGunGame 5 dagar sedan
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 👍
Tacotoots12 5 dagar sedan
19:20 was that a cut???
bmq34 5 dagar sedan
Who the hell give dislike to such a gread video? Anything wrong with it?
Simon Mølgaard Hansen
Simon Mølgaard Hansen 5 dagar sedan
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?
Kian F
Kian F 5 dagar sedan
I love the guest guy, he was so enthusiastic!
vicarioustube 6 dagar sedan
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!
sergio gonçalves
sergio gonçalves 6 dagar sedan
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
Arctic lama
Arctic lama 6 dagar sedan
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 👍
Fletcher Johnson
Fletcher Johnson 6 dagar sedan
It's pronounced pendulum not pendalum
Eric 6 dagar sedan
Oh you really don't need the cheap red arrow click bait on the thumbnail.
Кабаняра Клыков
Кабаняра Клыков 7 dagar sedan
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!
Ernest Gonzalez
Ernest Gonzalez 7 dagar sedan
i should be paying for this
Shawn Savage
Shawn Savage 7 dagar sedan
You can’t understand the whole with the sum of its parts unless you first know who made the parts.
Aarya Jain
Aarya Jain 3 dagar sedan
So I can't understand 10= 9+1 completely? Good to know
Shawn Savage
Shawn Savage 7 dagar sedan
Man if this doesn’t make you believe in God idk what will
Shawn Savage
Shawn Savage 7 dagar sedan
God made nature to function this way. How awesome is that!
Shawn Savage
Shawn Savage 7 dagar sedan
Without God there is no order, He sets everything in order!
Family Three
Family Three 7 dagar sedan
must be why iv never heard of or seen this bridge and work in london
Halima Nasrin
Halima Nasrin 7 dagar sedan
Outstanding demonstration , well said.
Fenrir 8 dagar sedan
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.
Schwatzen zero
Schwatzen zero 8 dagar sedan
Me watching the video : 15:02
The Wolf Gaming
The Wolf Gaming 8 dagar sedan
Veritasium : "So u naturally expect universe to be *MESSI* " Ronaldo fans : Nooo, i expect the universe to be Ronaldo.
Pilton Jones
Pilton Jones 8 dagar sedan
It also brought all the fighters to the strongest being on earth.
James Lento
James Lento 8 dagar sedan
Fun fact my last name is lento it’s also on metronomes 50bpm
asher platts
asher platts 8 dagar sedan
Fantastic video
Tim Jessel
Tim Jessel 8 dagar sedan
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.
Open Heart
Open Heart 8 dagar sedan
Women can even synchronize their periods if they get in to a close group for some time.
zokonjazokonja 8 dagar sedan
19:05 "that's why we don't understand immune system very well... " Now that's some sort eye opening, especially theese days
Cleveland explorer
Cleveland explorer 8 dagar sedan
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
Juan David Navarro Ortega
Juan David Navarro Ortega 8 dagar sedan
Does this happen also to larger celestial bodies, planets oscillating around stars, stars around galaxies or even black holes?
Airbag888 8 dagar sedan
The kiwiko crate won't ship to my country... Devastated 😭
Bottom Dollar Outdoors: Hunt. Fish. Grow.
Bottom Dollar Outdoors: Hunt. Fish. Grow. 8 dagar sedan
This is one of my favorite videos on SVfrom.
Ali Fatih Yılmaz
Ali Fatih Yılmaz 9 dagar sedan
plot twist : living in computer reality , just crashes after 155 player in same area and fix script working
Bunny Bevy TV
Bunny Bevy TV 9 dagar sedan
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 😭
Kris Stepke
Kris Stepke 9 dagar sedan
This is vibration space time stuff
Jacob Gardiepy
Jacob Gardiepy 9 dagar sedan
13:50 imagine filling a pool with that stuff
The Gorn
The Gorn 9 dagar sedan
Millenium bridge pays homage to millenials. i.e. complete failures.
The Gorn
The Gorn 9 dagar sedan
2:16 "Famous Dutch physisis Christiaan Huygens" Everyone: "who?"
Jacob Hood
Jacob Hood 9 dagar sedan
Can we see a similar pattern in the collection of thoughts in society?
TwistedVNM 9 dagar sedan
How can we not understand the economy we as humans invite it. It's not part of nature or science
TwistedVNM 9 dagar sedan
Next time you are in traffic look at the turn signals they will synchronize then get out of synchronization then get back into synchronization
Tiny Tuber
Tiny Tuber 9 dagar sedan
i wonder, why is it when i'm at an intersection, blinkers synchronize aswell
Q Q 10 dagar sedan
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
Metalman Extreme
Metalman Extreme 5 dagar sedan
Or when your bouncing your leg and notice the person nearby is bouncing in sync
bipedalbob 7 dagar sedan
It only happens when you watch it.
Stephen Birks
Stephen Birks 10 dagar sedan
Thats is an amazing insight- thank you for showing and explaining ?
Miguel V
Miguel V 10 dagar sedan
0:06 In NY I milly rock
Mirdjan Hyle
Mirdjan Hyle 10 dagar sedan
Adam Neely has entered the chat.
Allan Salzman
Allan Salzman 10 dagar sedan
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”.
eioshen boboi
eioshen boboi 10 dagar sedan
explaining his first experiment. That was very cool to see.
Collin Wilkerson
Collin Wilkerson 10 dagar sedan
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
some time
some time 10 dagar sedan
15:06 19:00 lol you seems convinced
Lisa Gunnison
Lisa Gunnison 10 dagar sedan
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
eioshen boboi
eioshen boboi 10 dagar sedan
Rocket Ei are)uuuu
WeTubule 10 dagar sedan
9 million subscribers. He makes an episode featuring pendulums and can't get software that even comes close to illustrating pendulum motion. 🤨
Navin Singh screen
Navin Singh screen 11 dagar sedan
we were 3-4 friends, alwys cycle together. i always used to think "How r we doing this or y r we doing this"
Dark 11 dagar sedan
In a complex system, chaos is the norm Women: hold my beer
Wendy 11 dagar sedan
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...
Willaraz 11 dagar sedan
15:01 Mr. Veritasium is Not impressed! 19:03 Mr. V. continues to be unimpressed
Zizi Mugen
Zizi Mugen 11 dagar sedan
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.
juanito arcoiris
juanito arcoiris 11 dagar sedan
Rusty Shackleford
Rusty Shackleford 11 dagar sedan
I didn't know Christian Huygen was the singer of Led Zeppelin!
PlaySomething! 11 dagar sedan
Perfect harmony in creation. It’s a beautiful witness
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