The Secret of Synchronization 

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How does order spontaneously arise out of chaos? This video is sponsored by Kiwico - go to www.kiwico.com/Veritasium50 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 www.quantamagazine.org/tag/the-joy-of-x
Nicky Case's Amazing Firefly Interactive - ncase.me/fireflies
Great Kuramoto Model Interactive - www.complexity-explorables.org/explorables/ride-my-kuramotocycle
Strogatz, S. H. (2012). Sync: How order emerges from chaos in the universe, nature, and daily life. Hachette UK. - ve42.co/Sync
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. - ve42.co/Strogatz2000
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. - ve42.co/Goldsztein
The Broughton Suspension Bridge and the Resonance Disaster - ve42.co/Broughton
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. - ve42.co/Bennett2002
Pantaleone, J. (2002). Synchronization of metronomes. American Journal of Physics, 70(10), 992-1000. - ve42.co/Pantaleone2002
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. -- ve42.co/Kuramoto1975
Great video by Minute Earth about Tidal Locking and the Moon - ve42.co/MinuteEarth
Strogatz, S. H., Abrams, D. M., McRobie, A., Eckhardt, B., & Ott, E. (2005). Crowd synchrony on the Millennium Bridge. Nature, 438(7064), 43-44. - ve42.co/Strogatz2005
Zhabotinsky, A. M. (2007). Belousov-zhabotinsky reaction. Scholarpedia, 2(9), 1435. - ve42.co/Zhabotinsky2007
Flavio H Fenton et al. (2008) Cardiac arrhythmia. Scholarpedia, 3(7):1665. - ve42.co/Cardiac
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. - ve42.co/Cherry2008
Tyson, J. J. (1994). What everyone should know about the Belousov-Zhabotinsky reaction. In Frontiers in mathematical biology (pp. 569-587). Springer, Berlin, Heidelberg. - ve42.co/Tyson1994
Winfree, A. T. (2001). The geometry of biological time (Vol. 12). Springer Science & Business Media. - ve42.co/Winfree2001
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 sltv.info/label/qdir25LDpYKlZZ4/video
Intro animation by Jorge Cham
Thanks for the BZ footage from SteinbockGroup: sltv.info/label/f62hl9TUknexoao/video and
NileRed sltv.info/label/gq9m0bfVm19sqZA/video
Animation of waves in the heart from The Virtual Heart/ EM Cherry/ FH Fenton - ve42.co/Cardiac and ve42.co/Cherry2008
Chemical materials and protocol provided by Mike Morris and the UCI Chemistry Outreach Program www.chem.uci.edu/~jsnowick/outreach/UCI_Outreach/index.html
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 epidemicsound.com "Seaweed" "Deeper Than The Ocean" "Ripple Effect"
Music also from Artlist artlist.com "Children of Mystery"
Thumbnail by Ignat Berbeci



31. mar. 2021

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Komentarjev 100   
rahpat01 Pred 2 minutami
I could not help noticing the little hints of Prof. Strogatz to 'systems thinking' at 18:25 ("positive feedback loop"), 19:xx etc... Hopefully one day it will be taught in high school. For now, if you are looking for your next topic to educate us, may I suggest the book Thinking in Systems by Donella Meadows
Ricky Redd
Ricky Redd Pred 9 minutami
It cost several million pound to fix the bridge? Should have been paid by the company that screwed up the design in the first place.
Robert Edwards
Robert Edwards Pred 10 minutami
I was a printer and operated a big flat bed machine which moved side to side. Notices were placed around the building saying "These machines must NOT be run in sequence. While bosses were out, apprentices deliberately ran three machines IN sequence. Milk bottles fell off tables and the building started to sway.
yuhero 8
yuhero 8 Pred 47 minutami
Can this work (in the vid speed of light) If light is in one just send the time(12:00) then to mars and say that you heve to wave with your hand to the erth at the time he sended you (12:20) and then see in a reeelyy good telescpe at what time he's waving If you think its a good ore badd idea pls why and how and im only 12 years old so spelling
playfulfunky Pred uro
Yoga is about tuning into this frequency to dance on the space time fabric! It's about unearthing the union below the layer of chaos!
Lucas Pred uro
Wait wtf. How tf have I only discovered this channel now?! I watch HAI, Real Engineering, RLL, Wendover, VSauce, you name it, the whole circus. And then the algorithm decides to show me the most brainfuck video from the most brainfuck channel? Shortly before the next semester starts? To make me watch every video? And distract me from online class? Good lord, I'm done.
amal thejus
amal thejus Pred uro
Humans clapping together is completely a psychological phenomenon right? Does it have anything to do with Kuramoto Model?
Horst Welker
Horst Welker Pred uro
Robbie Humphries
Well I feel like I learnt something there. Thanks!
Misio Puchatek
Misio Puchatek Pred 2 urami
Ok everything is pretty obvious but that chemical reaction is just sick 😳 How can you even think of something like that?’
AcedBerries Pred 2 urami
when you watch this but u know nothing 0_0
GeilerRitter Pred 2 urami
I really lie your videos and all the examples where super interesting. but the actual secret was shown for like two seconds and never discussed further. I actually did not understand it at all. Showing the formula without discussing it doesn't help :( Isn't it basically the fact that first every pendulum follows the frequency that is forced onto the system and second that this frequency is some sort of mix of the natural frequency of the pedulums combined or something like that? Even when they start with different frequencies, there are moments, when they are at the same phase. might this favour the average frequency of the two?
Leia Organa
Leia Organa Pred 3 urami
Scientism is not science... Yawn
Max Xam
Max Xam Pred uro
How is this "scientism"?
Enrique Renteria
Enrique Renteria Pred 3 urami
The Hungarian Clapping clip is not a spontaneous phenomenon, if you attend classical music concerts you will know this is the transition from applauding the director to requesting an encore. There is no cue, but everyone knows when to do it, and new goers just mimic the behaviour.
taylor swift karaoke
very cool
Boss Tycoon
Boss Tycoon Pred 3 urami
I think performers have this same thing with their crowd it's like they feed off eachother subconsciously they're just in sync
mwnciboo Pred 3 urami
*China* - Ok we make all the Hong Kongers like metronomes and they will fall in line!
Ryan DeBoer
Ryan DeBoer Pred 3 urami
Lockstep to Lockdown
Wackdagger Pred 3 urami
All of these theories are mentioned in the holy Quran 🙏
Max Xam
Max Xam Pred uro
No, they aren't.
Phoenix Stone
Phoenix Stone Pred 3 urami
Could synchronization be the key to the beginning and end of a universe? Everything is in rotation of some form in the universe that we can tell. We've heard and recorded the sounds of the universe like background radiation and there is a pattern to it, so what if, on a cosmic scale so large noone would live long enough to see any noticeable change, all matter was like a clock hand moving from one side to the other till they finally reach equilibrium and collapse into the next iteration of itself.
Darc Syster
Darc Syster Pred 3 urami
The 2ond law of thermodynamics does NOT state that things move from order to chaos. The 2ond law states specifically that energy moves from high concentration to low concentration. If you think about it in terms of heat (which is what thermodynamics is about), high energy particles (e.g. steam) behave very chaotically while low energy particles (e.g. ice) sit around being very orderly. Thus, in a larger sense, things move not from order to chaos but from useful chaos (high concentration) to useless order (low concentration). The heat death of the universe won't be mass chaos, it'll be perfect order where there is no differentiation between any part of space and identical particles are evenly distributed through out the universe. In comparison, the big bang was total chaos. The popular misconception that the 2ond law states that things move from order to chaos is just that, a misconception. You don't need to look far to realize that it is a misconception.
Hwidi M
Hwidi M Pred 4 urami
The work put in the video Magnificent 👌🏻
T.S.M.P Pred 4 urami
What happens when you have two small metronomes and 1 much bigger one. Will the smaller ones (try to) sync with the bigger one? And if so: lets call the bigger one: "Charisma" then.
That one Guy
That one Guy Pred 4 urami
Hey! Veritasium, Derek here.
王若冰 Pred 4 urami
Can this be applied to how women sync periods?
Brooks Carlson
Brooks Carlson Pred 4 urami
TIL I have been saying "longitude" wrong all these years. My entire world view is collapsing- up is down, left is right, the Earth is flat... wait... is that how you become a flat Earther?
Created Being
Created Being Pred 5 urami
Goes on to show how truly amazingly Christ designed the universe.
Joy 3000
Joy 3000 Pred 5 urami
Great video
1 Pred 5 urami
In answer to your first question GOD
wannabeMLGpro Pred 5 urami
Jay Star
Jay Star Pred 5 urami
I now recall a playground structure which wobbled while I traversed. Similar to a tightrope but with hand-ropes to grasp. An inverted triangle design. Simple physics
Jay Star
Jay Star Pred 5 urami
The same thing that "corrects the current" DESPITE the pebble thrown into the river. No 'X-Men' viewers?
ChronoHaxx Gaming
ChronoHaxx Gaming Pred 6 urami
The clip where the audience was clapping and then when they all clapped in sync freaked me out. How beautiful nature is, man
ch13t Pred 6 urami
I don’t think I’ve enjoyed a SLtv video like this in a while. Wish it was longer
Joshua Heathcote
Joshua Heathcote Pred 6 urami
Bridge is wobbling on collapse. People still decide to walk across it.
LeoVomend Pred 6 urami
the clapping looks completely insane, like if you're the one person in the room out of synch you think they're aliens or a cult
you know me
you know me Pred 6 urami
18:00 a few of those people on the edge looks like they're _pushing_ the bride back and forth
Karl Davis
Karl Davis Pred 6 urami
I give Huygens a lot of credit for finding a physical reason for this - they were hung from the same beam - instead of some garbage about the aether or spirits or such. It's not "spooky action at a distance" if you can find a reason for it.
She DMontford
She DMontford Pred 6 urami
It happens in groups of women with their menestral cycle- and it has nothing to do with being board !
Dani Banani
Dani Banani Pred 6 urami
Tip on the pronunciation of "Huygens": don't say hoygens, say howgens, that's closer to what it should sound like.
you know me
you know me Pred 7 urami
the clapping thing, thats trueee mostly you just don't wanna be 'off sync' and start clapping to the beat majority is clapping to and then it just...syncs
Robby Real 808
Robby Real 808 Pred 7 urami
I present comrade from indonesia my friend 🌐🌍🌎🌏🌐
DOD OK Pred 7 urami
When the metronomes got in sync, I literally smiled to myself XD
Matthaeus Muniz
Matthaeus Muniz Pred 7 urami
Why the planets don't lock their rotation with the sun, like moons do with their planets?
Salvatore UR
Salvatore UR Pred 7 urami
The cloudy umbrella intralysosomally cover because quince laparoscopically pick afore a tart delete. grotesque, changeable soap
AH M Pred 7 urami
"the whole is more than just the sum of the parts". Buy two Ajax, get 1 free drinking glass
Mikey Kansten Poyy
Mikey Kansten Poyy Pred 7 urami
One word ..... GOD ❤️
Luke Day
Luke Day Pred 7 urami
Does occur without the fizzy drinks table?
Promethious B
Promethious B Pred 8 urami
But would this happen if the metronomes were on a solid surface..?
Tribus Pred 8 urami
Damn, I get it ! That's crazy
ShadoWolf Pred 8 urami
This is how the law of attraction actually works, from the book secret, so its just that, idea reinforcing actions and actions/situations reinforcing ideas etc etc, also how confirmation biases and biases in general operate. This does not stop with the physical aspects.
Yancy Specking
Yancy Specking Pred 9 urami
The sticky eyelash disappointedly decorate because partridge technically clear apropos a minor iran. sloppy, puzzled anger
mohan krishna
mohan krishna Pred 9 urami
I dont know why, but I think I could use/correlate this in stock market. Give me an year, I will update you how it went. Meet you in 2022. Thank you
Arman Kh
Arman Kh Pred 9 urami
Why do the Huygens' pendulums synchronised with 180 degrees offset ("when one ticks, the other tocks") but the metronomes on the "wobbly" platform get synchronised with no offset?
Ker Lozano
Ker Lozano Pred 9 urami
The deadpan minister eventually transport because bandana pathohistologically nail into a aberrant land. ratty, hallowed cupboard
Overxpossed Pred 9 urami
What you call "chaos" is in your mind. Your mind understands by chaos, an order that canot bne fully understood due its complexity, and that's called epystemologycal randomness. Chaos is for you the opposiet to order and perfection; but your idea of order and perfection are not based on what you wish would be order and perfection. The order and perfection you talk about is a frozen lake; and trhat you call chaos is Harmony; dynamic order, etc.
Vincent James Voice
Vincent James Voice Pred 9 urami
Happens with women, too, ppl.
hgfuhgvg Pred 10 urami
Damn.. I get so engrossed in your videos that I forget to like them
Wu Wei
Wu Wei Pred 10 urami
So what is the platform in womens menstrual cycles? They have the same phenomenon.
Rafael Silva
Rafael Silva Pred 11 urami
One of the best, if not the best video that I saw on SLtv, ever. Congrats and thank you.
An Meme
An Meme Pred 11 urami
That's also why I don't trust science anymore. The whole is always emergent.
Bagdad Ahmed
Bagdad Ahmed Pred 11 urami
Question is, mostly to get something synchronised we need to wait until it get synchronised. Can we limit the required time of the synchronisation? I am sure if we can do it so this might open a new possibilities to treat cancer as we can get the uncontrolled cell division and metastasis in a synchronisation.
Jasmeet Singh
Jasmeet Singh Pred 11 urami
Damn, the quality of this video was legit
David Supranes
David Supranes Pred 11 urami
The first idea in my head about this was about the synchronizing clapping of crowds.
a m
a m Pred 11 urami
Im not a science person but I watched and listened without skipping. Thats how good this video is.
Wang Rowan
Wang Rowan Pred 12 urami
The hypnotic baboon lily ski because lobster contrarily imagine excluding a knotty noise. spurious, blushing break
Jane Lopez
Jane Lopez Pred 12 urami
The juvenile butane optically interfere because bat conservatively pause around a dreary egypt. cruel, highfalutin german
Olivia C-G
Olivia C-G Pred 12 urami
How does this affect entropy?
Jim Cornell
Jim Cornell Pred 13 urami
very good
Joseph Bongiorno
Joseph Bongiorno Pred 13 urami
order is an illusion :D
gakpad the junkrat boy
did you stabilize the shot of them rocking the bridge?
spencer tom
spencer tom Pred 13 urami
The longing sandwich nally wobble because hall ethnopharmacologically hop astride a red ferryboat. nutty, eager cent
shafiq alam
shafiq alam Pred 14 urami
Just another conspiracy
Vladyslav Karasov
Vladyslav Karasov Pred 14 urami
I once decided to walk across a bridge that had a railway underneath it, the train just happened to also be crossing the bridge. The entire time I was holding onto something because it felt like I was gonna go flying over the rail.
Black Ginkgo
Black Ginkgo Pred 14 urami
Or in other words Resonance frequency ...
Julio figo
Julio figo Pred 14 urami
Very nice :)
Eugene M
Eugene M Pred 14 urami
Those bridge engineers should have consulted with "the many" before building it.
David F.
David F. Pred 14 urami
Good material mate, as Tesla said... "If you want to find the secrets of the universe, think in terms of energy, frequency and vibration. Nikola Tesla". Keep going. You doing it good.
Tjardo Pred 14 urami
Giechris Rubia
Giechris Rubia Pred 14 urami
So this is the secret of SEVENTEEN....dope!
Sadiquecat Pred 15 urami
Okay, making the planets and music in sync was very cool ! Props to who ever came up with that !
Renchia TS
Renchia TS Pred 15 urami
Thank you this is going into my note book to the note book and beyond
Cardboard truck 1000
Cardboard truck 1000 Pred 16 urami
3:50 it’s Bluetooth
Shlok Parab
Shlok Parab Pred 16 urami
Example of synchronization I saw after this video: I was downloading 2 files(I had to scroll a bit to download another file so there was a delay). I saw in the notification bar that when on sign was fully highlighted the other was half but after some time both were in sync(both were highlighted by same amount.
Bruce Ledger
Bruce Ledger Pred 16 urami
Here are 12 important questions and answers before considering getting vaccinated: ?"If I get vaccinated can I stop wearing a mask(s)?" Government: "NO" ?"If I get vaccinated will the restaurants, bars, schools, fitness clubs, hair salons, etc. reopen and will people be able to get back to work like normal? Government: "NO" ?"If I get vaccinated will I be resistant to Covid?" Government: "Maybe. We don't know exactly, but probably not." ?"If I get vaccinated, at least I won't be contagious to others - right?" Government: "NO. the vaccine doesn’t stop transmission." ?"If I get vaccinated, how long will the vaccine last?" Government: "No one knows. All Covid "vaccines" are still in the experimental stage." ? "If I get vaccinated, can I stop social distancing?" Government: "NO" ? "If my parents, grandparents and myself all get vaccinated can we hug each other again?" Government: "NO" ? "So what's the benefit of getting vaccinated?" Government: "Hoping that the virus won't kill you." ?"Are you sure the vaccine won't injure or kill me?" Government: "NO" ?"If statistically the virus won't kill me (99.7% survival rate), why should I get vaccinated?" Government: "To protect others." ?"So if I get vaccinated, I can protect 100% of people I come in contact with?" Government: "NO" ? "If I experience a severe adverse reaction, long term effects (still unknown) or die from the vaccine will I (or my family) be compensated from the vaccine manufacturer or the Government?" Government: "NO - the government and vaccine manufacturers have 100% zero liability regarding this experimental drug" So to summarize, the Covid19 "vaccine"... Does not provide immunity Does not eliminate the virus Does not prevent death Does not guarantee you won’t get it Does not stop you from passing it on to others Does not eliminate the need for travel bans Does not eliminate the need for business closures Does not eliminate the need for lockdowns Does not eliminate the need for masking If after reading this you still decide to get the "vaccine".. This was taken down from my FB page within 10 seconds of posting. Let's seehow the YT algorithmn views it.
Dr Pebbs
Dr Pebbs Pred 16 urami
The secret of synchronization is the Glory of God.
Aisha Blake
Aisha Blake Pred 16 urami
I got 12 word phrase recovered after losing access to my wallet for a year. Thanks to *Philipe,* who make it happened. He's legit and reliable
Aisha Blake
Aisha Blake Pred 16 urami
I got 12 word phrase recovered after losing access to my wallet for a year. Thanks to *PHILIPE,* who make it happened. He's legit and reliable
Nabilah Zubir
Nabilah Zubir Pred 16 urami
This explains the Saturn and jupiter alignment ee 🤔
Nikiforos Mavridis
Nikiforos Mavridis Pred 17 urami
First time a rocomendation was interesting..
Ernesto Terrazas
Ernesto Terrazas Pred 17 urami
Super Super Super Interesting CONGRATULATIONS
Trolers Nation
Trolers Nation Pred 17 urami
those awkward cuts to the youtuber
Wilhelm Enns
Wilhelm Enns Pred 17 urami
What puts these things together? It’s Gods creation . You can seem it all over the universe. All this would never create it self by its millions of years.
Esteban Oetling
Esteban Oetling Pred 17 urami
James Wong
James Wong Pred 18 urami
Hi Juan: One idea I'm getting is that Synchronization is the result of feedback loops. The fireflies look at each other, the clocks share a moving platform, gravity pushes and pulls solar objects, etc. Is Synchronicity possible without feedback?
Monte Lang
Monte Lang Pred 18 urami
So nature is chaotic but tends toward synchronization, because systems tend to oscillate. Fascinating.
Joshua S
Joshua S Pred 18 urami
lol, like the cosmic mathematical principles and theories could poss be explained in a youtube video. Its as simple really as "It happens" just try and enjoy it when it does.
Michael Sänger
Michael Sänger Pred 18 urami
mimpmap/shadow texture fail on that bridge tho
Red Cat
Red Cat Pred 19 urami
Through the Polka Dot Door... Groovy. Thanks for this. VT is me.
insanity wolf
insanity wolf Pred 19 urami
It's observation. Nothing more
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