For what the video says (and I can understand) this is an experiment about synchronicity. What I think that happens is that the table starts moving slowly when the metronomes start oscillating... maybe it's the oscillation of all those metronomes moving the table (which seems as if it's hanging), movement which, later on, when it's gained some energy, help synchronize all the metronomes
if you accelerate the metronome one way, it slows down when it tries to swing in that same direction. The surface is probably suspended by strings or something which is why you see it move around, so the metronomes momentum naturally force the other metronomes to come to a closer position, making them sync.
Same thing happened to the millennium bridge in London. Bridge started to sway a little bit, eventually people unconsciously stepped with the sway which only increased it. They had to shut down the bridge to apply dampeners due to the massive forces so many people stepping in unison was doing.
Hi Rebecca, If you watch closely, during the initial startup actuation by hand, the right column second row starts moving before it is even touched. This occurred because the close mechanical coupling through the movable table base has already become so strong, as to self-start the last of that metronome and others.
@@ylst8874 No oscillators have exact frequency however you try to tune them, and as the they drift some will eventually "tuned" to the waves they emitted to the environment, in this case soundwave travelling to the table and the surrounding air.
+skategangster actually, it isn't, it's been scientifically proven, as well as all my sisters and even my wife and her friends all attest to it happening to them at some point.
You are correct. The table isn't swaying rhythmically at the beginning of the video. It is the combined motion of the metronomes that causes the swaying and helps get them all in sync.
My best guess is that there are 2 factors that made the outlier stay strong for so long: 1. horizontal movement acts weakly on metronomes that are nearly in phase or nearly exactly opposite, 2. due to pendulum motion of both table and metronomes there is also a (weak) vertical component of table motion with twice the frequency that stabilizes not only metronomes that are in phase but also those in opposite phase, but since it‘s so weak it needs precise alignment of everything (or just luck) to get a metronome locked in opposite phase despite the horizontal movement trying to destabilise it
For the lazy, a rough Google Translation: Metronome synchronization (32) When you move the metronome and put on a table that moves multiple metronome that ticks all the metronome sound at the same time as it is known in sync eventually. Create table test equipment such as works by hanging from the left and right units to put a metronome, the laboratory is Ikeguchi, we have conducted an experiment in sync. In this video 32 metronome ticks sound at the same time.
So what you see is all moving together, while each metronome is neither pushing or pulling any more on the base, that oscillates in perfect timing offsetting the equal and opposite pendulums at the potential energy trough; the lowest possible expenditure of effort. I hope this explanation helps. See Sears and Zimansky or many other textbooks for the equations if you wish.
It's a social commentary art piece on how the school system forces unique individuals to conform to the adult set social standards thus destroying their individuality.
it's just the vibration from all the metronomes on the flimsy table that ends up syncing them all up. if you tried this on something more sturdy like a concrete table, you most likely wouldn't get this result, at least not that quickly.
It's the movement of the table. Those moving faster than the table's movements are robbed of tiny amounts of energy and slow down. Those moving slower are given small amounts and speed up. Those moving in sync aren't affected. As for what is moving the table, I don't know. Could be motorized or it might be moving because of the overall effect of the metronomes. (This is a guess. I think it's a good one, but it's a guess none-the-less.)
That one fucker in the second row on the far right just kept us waiting longer than it had to be. There's always that one, who's the special one, right? Wasting everyones time fucker... ;)
They would be synchronized also not on a mobile platform, but it will take something about three days. And If you have more metronomes, your have more faster synchronization.
It is the combined motion of the metronomes that causes the swaying that gets them all in sync. Once the table starts swaying, by the combined motion of the metronomes, a harmonic frequency begins to control the metronomes, knocking them out of their original pattern and aligns them to match the frequency of the table they rest on.
No. The moving surface is what causes the synchronization. The base moves with the majority of the metronomes and the force of that movement is what throws the other out-of-sync ones into sync.
the surface itself is a sort of pendulum, with 32 pendulums on it. Newton's third law (equal and opposite reaction) means that the surface itself will start a sympathetic movement according to which way the aggregate momentum is flowing. From the first moment, one vector, either left or right, is 'more' correct from an aggregate POV. So any pendulum moving against the 'correct' aggregate will have to work harder than any pendulum moving with the aggregate flow and over time this finds a balance.
Basically, every time the little pendulum changes direction, it exerts force on the board they're all sitting on. That jostles the board, and the board jostles the other metronomes. They all feed back on each other until a predominant force wins out and begins shifting the board primarily in that direction. It's harder for the metronomes to swing against the sway of the board than with it, so they all eventually end up swinging with the board, and, by extension, each other.
@@billduris464 (9 years ago) This comment was written in the before-times, when you couldn't even reply directly to other people's comments in a thread. I have no idea what I was replying to, back then. In response to your theory: You are correct. If the surface they were on had less sway, it would take a lot longer to synchronize. If it had no sway, or an amount of sway so low as to be negligible, the metronomes would not ever synchronize.
Impossible to say without knowing the exact model of metronome. If it was a completely free moving pivot (it's not) then yes, because the table was moving back and forth ever so little. It would just talk a little while to reach that amplitude. Every metronome has that point you have to pull it past to get it started, but I don't recall the movement prior to that point being consistent. Some would swing between the resistance points, some wouldn't.
They disproved a different bridge design with the badly timed pneumatic shoes that only go up and down on a badly scaled bridge. Basically their designs were flawed but I doubt they had the budget or time to test what caused the "real" problem. Their feet had no sideways force. They were only testing vertical oscillation, not horizontal.
The shelf they are sitting on is allowed to sway slightly. If you look closely you can see it move. That's what allows the pendulums to 'feel' each other and sync up.
Они бы синхронизировались и не на подвижной платформе, но для этого им понадобилось бы дня 3. Причем чем больше метрономов, тем быстрее они синхронизируются. Это явление называется синхронизацией динамических систем. They would be synchronized also not on a mobile platform, but it will take something about three days. If you have more metronomes, your have more faster synchronization. This phenomenon is called the synchronization of dynamic systems
Yes, the motion of the base is the path kinetic energy takes between oscillators. It gently sways the pivot point of each oscillator, in rigid control of the base. Because the upper part of each pendulum is less massive than the lower part, the pendulum always wants to return to vertical. Each time it does it is given another kick from the wound spring inside, that release a bit more energy. The imbalance between the upper and lower pendulum is what exerts a net horizontal force onto the table.
i don't think mikey meant the frequency wouldn't change. he just meant they all had to be default set to 120bpm or something for eg. also yes it would work in different frequencies, but I would think they'd go out of sync once in a while, due to particular pendulums swinging with more strength than others.
wow =D It's amazing how connected everything is. Much like when scientists try to isolate a crystal for the first time. If 6 scientists in 6 countries doing 6 different attempts to isolate something in crystal form are working, and 1 of them successfully isolates, then it becomes easier and faster for the other 5 scientists attempting the crystallization to succeed! So amazing!
You can see the table vibrating and swaying back and forth. The weight of the base of the metronomes causes a push and pull of the plane, eventually syncing every metronome to the same vibration. Tesla did a lot of work with this type of physics. Check it out. en.wikipedia(.)org/wiki/Tesla's_oscillator
Actually if you look more closely you will see that the table is swaying before they even start them swinging, by the end they all match the frequency that the table is swaying at... now thats some basic physics.
meme-meme:This occurs because the table on which the metronomes are placed upon is moving in time with the average frequency of oscillation of the metronomes. As time passes, and the metronomes begin to slow due to dampening, the swaying of the surface, transfers its energy back to the metronomes (which is why they begin to sway with more force after a while) at a natural frequency equal to that of the sway of the table and the average frequency of oscillation of the metronomes prior to the sync
actually they moving the table to call the pace, moving right mean the metronome lean right, moving the table left and mean it will lean left, that's all there is to it. nothing about energy or anything else, the table call the pace only.
actually it is. as you can see, the surface where all the metronomes are, is a very light material (i dont know the name of it in english, sorry about that) and at the end all the metronomes are syncrhonized because of the movement of the surface, its actually the "mid" frecuency of all the metronomes
Like neighboring guitar strings, the vibrations of one oscillator radiates mechanical energy because of the loose coupling of the base board. Leading oscillators tend to be held back by lagging neighbors, and energy equalizes amongst them until all are in perfect synchrony where the exchange stops and no further transfer one way or the other occurs because they are all in sync. Basic physics at work.
Yes, the table is moving. The movement is the result of the kinetic energy being released by the metronomes' movement. The table is set up so that it CAN move and allow the energy transfer. The synchronization comes as a result of the dominant wave of energy overtaking and causing the metronomes that are out of sync to "course correct" as it were. Because the table can accept the transfer of energy it reinforces the shift in synchronization.
The table is not still, so the oscillations spread with the table, syncing all the metronomes. At the end you can see the table rocking in sync. So try again on a stable surface and amaze us.
I don't agree. I think that the metronomes could have been perfectly accurate, but on a floating surface they'll change tempo anyway, because of the action of the other ones. The motion of the surface caused by the others affects the tempo of each metronome till they reach the synchronization.
The other metronomes (by means of shaking the board they're on) actually change the frequency of surrounding metronomes. If their frequencies were identical and unchanging, they would never be in sync. It works if they're set to different frequencies.
yes but since this is not about their accuracy. its about the fact that they are on a surface that "feels" the movement influencing it, so yeah they all must have made irregular times in order to sync up.
Метрономы стоят на подвижной оснонове, которая начинает раскачиваться в сторону максимального кол-ва одинаковых колебаний, остальные метрономы качаются с спротивлением, что в итоге приводит их к общему порядку - вот как я думаю это происходит.
Look closely and see that metronome starts from that motion ahead of being approached by the fingers. One the metronome body moves under the free pendulum, it causes the spring energy to begin to be released by the first click. that metronome now adds new energy to the system. Like when you through your hips left, and your chest moves right in a dance, right? The wave action has a crest point and a trough point.
This is the same basic principle for weight-based Artificial Neural Networks. The average error is back-propogated to all individual metronomes and eventually the error in their tempos even out. It's quite amazing how applicable the concept of ANN's are with many real life phenomena.
If you put two (of the same?) pendulum clocks side by side they'll synchronise too. I wonder why a non-moving table stops the wave entrainment with metronomes?
Did anyone else notice that the platform they are on is moving? It looks like it is suspended somehow. That has to be how the motion is being synchronized. I don't think this would happen if they were all on a solid surface.
I think I see what you're saying. I'm not sure whether it would work with pendulums of varying frequencies. Maybe to a degree. You can probably allow greater variance in pendulum size and frequency if you also increase the allowable amount of swing on the platform. Up to a certain point, of course.
It would, but through vibrations in the material, and it would probably take a LOT longer. Two pendulum clocks on a stationary wall will eventually synchronize.
Haven't seen it mentioned yet, but I'm guessing it's the waving of the platform (ironing board?) they're on that forces them in sink.. Only possible way. If they were all set to same temp then they would remain out of sink as they started. Different temps would not have held the sync as shown.
LOL. Though....I think technically no. As having them in sync is the lowest energy state in this instance. Having them out of sync on a moving object would be a higher energy state and funnily a more "ordered/complex" state, thus by syncronising they are tending towards a lower and more stable state. So entropy is still progressing not reversing
Aparte de la mesa, también es la fuerza que ejercen al moverse de un lado para otro, cuantos más haya moviéndose al mismo lado, todos cogerán esa misma "postura", gracias al movimiento de la mesa y la fuerza ejercida del movimiento que hacen.
That's a great explanation for people like me, who studied biology and haven't a clue about these things. Can you explain why the one that is in the far right column, second from the front, which at one point is in time but in the opposite direction ends up changing direction? I'm going to guess that it's something to do with vibrations having direction? (I'm thinking wavelength graphs etc?)
I don't know exactly how they did it, but what I would do is just set all metronomes to the same frequency, so they start out of phase but with the same frequency. Then I would gently rock the surface they are on with the same exact frequency, and slowly metronomes internal phase will be coerced to the external phase.
I suspect that the motion of the table that the metronomes are on is in sync with the greatest number of metronomes simultaneous movement which either slows or speeds the others to the majority movement...
That's exactly right, the platform is hanging from 4 strings attached to the wooden bar at the top, allowing each metronome to transfer it's energy into the platform.
In the case of the out-of sync metronome, it matters not which way it deflects. If it starts to lead the others, it will be depleted of energy as the ball loses potential energy and eventually settles like the others; if it start to lag the others, it will start to acquire energy from the others. Eventually, all metronomes reach the potential valley, they have equalized with each other, happy at the potential valley that synchrony represents.
2:10右の二番目の１つだけ逆なの好き
笑いました、ありがとう🍀
稀にいる恥ずかしながらみんなと違う行動をとる勇者みたいw
最後は一緒になってしまった泣
卒業生退場の拍手が揃ってくるのに似てる
面白い！ 一つずつはズレていても、同期が同じだと全体では同じテンポを刻んでいる様に聞こえますね！
ps: 最後まで見たら、吊るす事による台の揺らぎで全体が補正されて同期が揃ってゆく実験だったんですねｗ
NHKで紹介されていましたね‼︎
実際の動画が見たくて覗きました。
このように動物のように考えを持たないモノでもお互いの動作を感じ取って同期するってすごいですよね。
グレイト！
もはやメトロノーム達が動物に見えてきてwwwww
一番右の前から2番目のメトロさん
みんなが揃ってたとき、一人だけずれてた
「実験☆実験」って言ってるように聞こえる
ふざけんなそれにしか聞こえなくなっただろ
For what the video says (and I can understand) this is an experiment about synchronicity.
What I think that happens is that the table starts moving slowly when the metronomes start oscillating... maybe it's the oscillation of all those metronomes moving the table (which seems as if it's hanging), movement which, later on, when it's gained some energy, help synchronize all the metronomes
if you accelerate the metronome one way, it slows down when it tries to swing in that same direction. The surface is probably suspended by strings or something which is why you see it move around, so the metronomes momentum naturally force the other metronomes to come to a closer position, making them sync.
メトロノーム、可愛すぎ！
これぞ社会
右側の前から２番目心配したけど揃った嬉しさ👏
Same thing happened to the millennium bridge in London. Bridge started to sway a little bit, eventually people unconsciously stepped with the sway which only increased it. They had to shut down the bridge to apply dampeners due to the massive forces so many people stepping in unison was doing.
now try this with digital metronomes
Hi Rebecca,
If you watch closely, during the initial startup actuation by hand, the right column second row starts moving before it is even touched. This occurred because the close mechanical coupling through the movable table base has already become so strong, as to self-start the last of that metronome and others.
1:54 ニコニコだったらこの辺で「うおおおお！かなり揃ってる！」「これより上がある…だと…？」「凄すぎワロタ」辺りのコメントが乱立してるはず
it achieved synchornization because the table is swaying.
@@joyfuluniter5445 so whts the logic behind it ?
@@ylst8874 No oscillators have exact frequency however you try to tune them, and as the they drift some will eventually "tuned" to the waves they emitted to the environment, in this case soundwave travelling to the table and the surrounding air.
yes
The table is information, new information is multi unique duality of a person,not incubator.
no the table is swaying because it achieved synchronization, the opposite
Huh.. I actually started bobbing my head back and forth at some point. Also.. man that pink one on the right was a rebel to the very end!
Is this why women that live together will eventually have their periods at the same time ?
+skategangster That is a fable.
+PatrickGoud it's also sarcasm..
It's good to know that my sarcasm isn't completely wasted ;)
+skategangster actually, it isn't, it's been scientifically proven, as well as all my sisters and even my wife and her friends all attest to it happening to them at some point.
It is, no kidding
この動画捜していたんですよ😆 す、素晴らしい😆
You are correct. The table isn't swaying rhythmically at the beginning of the video. It is the combined motion of the metronomes that causes the swaying and helps get them all in sync.
The table doesn't help them. They only need the vibration of the table at any frequency to communicate with each other.
There's rebel on the right hand side which takes longer to obey. ^^
...a total maverick
He didn't obey, the other metronomes conformed to him. Everyone copied his style so that it was no longer unique.
There is always "that" guy...
My best guess is that there are 2 factors that made the outlier stay strong for so long: 1. horizontal movement acts weakly on metronomes that are nearly in phase or nearly exactly opposite, 2. due to pendulum motion of both table and metronomes there is also a (weak) vertical component of table motion with twice the frequency that stabilizes not only metronomes that are in phase but also those in opposite phase, but since it‘s so weak it needs precise alignment of everything (or just luck) to get a metronome locked in opposite phase despite the horizontal movement trying to destabilise it
@@kabuto3907 Woa, thanks. Also I had forgotten about this video, nice reminder! ^^
中指立ててるように見えてきた
ワロタww
at the end all i can hear is the hell's march from C&C: Red Alert
ua-cam.com/video/tsbAba0qLHI/v-deo.html
For the lazy, a rough Google Translation:
Metronome synchronization (32)
When you move the metronome and put on a table that moves multiple metronome that ticks all the metronome sound at the same time as it is known in sync eventually.
Create table test equipment such as works by hanging from the left and right units to put a metronome, the laboratory is Ikeguchi, we have conducted an experiment in sync. In this video 32 metronome ticks sound at the same time.
So what you see is all moving together, while each metronome is neither pushing or pulling any more on the base, that oscillates in perfect timing offsetting the equal and opposite pendulums at the potential energy trough; the lowest possible expenditure of effort. I hope this explanation helps. See Sears and Zimansky or many other textbooks for the equations if you wish.
It's a social commentary art piece on how the school system forces unique individuals to conform to the adult set social standards thus destroying their individuality.
7 years later and the school system instead is hellbent on letting pedophiles teach and groom children.
ダンダダンからきたやつおるか
ダンダダンから
it's just the vibration from all the metronomes on the flimsy table that ends up syncing them all up. if you tried this on something more sturdy like a concrete table, you most likely wouldn't get this result, at least not that quickly.
H3 you are my hero, you held out as long as you could.
剣道部の練習風景みたい
we are the metronomes , you will be assimilated , resistance is futile .
drive.google.com/file/d/12Pq0gkolpU3kOqhwTgD7310T_haDft0H/view?usp=drivesdk
😍
Yeah big brother snuck in with the World Wide Web
If you covered all of them in concrete they would not sync
Oh great thinker!
It's the movement of the table. Those moving faster than the table's movements are robbed of tiny amounts of energy and slow down. Those moving slower are given small amounts and speed up. Those moving in sync aren't affected. As for what is moving the table, I don't know. Could be motorized or it might be moving because of the overall effect of the metronomes. (This is a guess. I think it's a good one, but it's a guess none-the-less.)
どういう原理なのかさっぱり分からない・・・
宙に浮かせたウレタンの上でやるから出来るのかな？
”同期現象”というらしいけど、まだまだ世の中にはオレ分からんことが多い・・・
右の列の前から二番目のメトロノームが唯一逆らって動いてたけど、そいつまで綺麗にそろいだしたときはちょっと鳥肌ものだった。
Would it work on a fixed plate?
Dino Alberini no
Yes, but it would take days.
That one fucker in the second row on the far right just kept us waiting longer than it had to be. There's always that one, who's the special one, right? Wasting everyones time fucker... ;)
Try the same test on concrete or a solid platform. I bet $100 it doesn't work the same.
***** Well, no shit. My comment was directed toward people who think that these things are falling into sync by some cosmic power.
They would be synchronized also not on a mobile platform, but it will take something about three days. And If you have more metronomes, your have more faster synchronization.
the floating platform is the whole point - that's what connects them all
It is the combined motion of the metronomes that causes the swaying that gets them all in sync. Once the table starts swaying, by the combined motion of the metronomes, a harmonic frequency begins to control the metronomes, knocking them out of their original pattern and aligns them to match the frequency of the table they rest on.
這個原理十分簡單:
所有的節拍器都放在同一張(會搖擺的)桌子上。
剛開始的時候，兩個人一個接一個啟動節拍器。
使用多大的力量，或是何時去啟動，其實都不會對最後結果有甚麼影響。
每個節拍器被啟動，就有各自獨立的節奏(節拍)，也就是所謂搖擺的振動頻率。
節拍器互相之間的搖擺頻率相接近的，就會尋找兩個頻率的中心點來做調整，桌子(重量夠大的)的搖擺搖擺頻率就會是這兩個節拍器認同的共振頻率。
如此依序每兩個節拍器互相找到一個共振的頻率，最後這兩個節拍器會以這共振頻率作為一同搖擺的頻率。也就是有相同的左右搖擺動作。
連搖擺的大小(振幅)也會相同。當這兩個節拍器有了共識，其他兩個有共識的節拍器再來跟這組節拍器做頻率的調整。
如此連續整合，最後所有的節拍器就會有相同的表現。
開始的時候，桌子並沒有明顯的左右搖晃。
當桌子的左右搖晃有明顯的感覺時，部分的節拍器已具有相同的搖擺模式。
桌子的搖擺與節拍器的動作越來越契合。
只要專注在那幾個不聽話的節拍器上，漸漸被其他整齊的節拍器歸化為一。
大桌子的搖擺頻率就是整體的慣性震盪頻率。
如果你放上更多的節拍器，不啟動他們。一陣子後，也會以相同的模式一起搖擺。
テンポの設定は全部同じ？
多分そう
同調圧力
今NHKでしてる
No. The moving surface is what causes the synchronization. The base moves with the majority of the metronomes and the force of that movement is what throws the other out-of-sync ones into sync.
the surface itself is a sort of pendulum, with 32 pendulums on it. Newton's third law (equal and opposite reaction) means that the surface itself will start a sympathetic movement according to which way the aggregate momentum is flowing. From the first moment, one vector, either left or right, is 'more' correct from an aggregate POV. So any pendulum moving against the 'correct' aggregate will have to work harder than any pendulum moving with the aggregate flow and over time this finds a balance.
I guess the same way works collective consciousness
軍隊みたいww
シンクロ率１００％、エバンゲリオン発進！
Rondadoreronda エヴァだよ
Basically, every time the little pendulum changes direction, it exerts force on the board they're all sitting on. That jostles the board, and the board jostles the other metronomes. They all feed back on each other until a predominant force wins out and begins shifting the board primarily in that direction. It's harder for the metronomes to swing against the sway of the board than with it, so they all eventually end up swinging with the board, and, by extension, each other.
I bet they wouldn't synchronise if they were on a solid platform.
@@billduris464 (9 years ago)
This comment was written in the before-times, when you couldn't even reply directly to other people's comments in a thread. I have no idea what I was replying to, back then.
In response to your theory: You are correct. If the surface they were on had less sway, it would take a lot longer to synchronize. If it had no sway, or an amount of sway so low as to be negligible, the metronomes would not ever synchronize.
Impossible to say without knowing the exact model of metronome. If it was a completely free moving pivot (it's not) then yes, because the table was moving back and forth ever so little. It would just talk a little while to reach that amplitude. Every metronome has that point you have to pull it past to get it started, but I don't recall the movement prior to that point being consistent. Some would swing between the resistance points, some wouldn't.
Owarimonogatari brought me here
oikura sodachi love
周期がそろうだけじゃなくて動きまで同期するなんてすごいです
In a rigid table this would never be possible.
Actually, all the metronomes are getting in sync with the table.
They disproved a different bridge design with the badly timed pneumatic shoes that only go up and down on a badly scaled bridge. Basically their designs were flawed but I doubt they had the budget or time to test what caused the "real" problem. Their feet had no sideways force. They were only testing vertical oscillation, not horizontal.
The lesson here: Rocking the boat in a rigid society will always lead to conformity.
The shelf they are sitting on is allowed to sway slightly. If you look closely you can see it move. That's what allows the pendulums to 'feel' each other and sync up.
Они бы синхронизировались и не на подвижной платформе, но для этого им понадобилось бы дня 3. Причем чем больше метрономов, тем быстрее они синхронизируются. Это явление называется синхронизацией динамических систем.
They would be synchronized also not on a mobile platform, but it will take something about three days. If you have more metronomes, your have more faster synchronization.
This phenomenon is called the synchronization of dynamic systems
the swing of the underneath table produce a constant cinetic movement that force metronomes to sync
Yes, the motion of the base is the path kinetic energy takes between oscillators. It gently sways the pivot point of each oscillator, in rigid control of the base. Because the upper part of each pendulum is less massive than the lower part, the pendulum always wants to return to vertical. Each time it does it is given another kick from the wound spring inside, that release a bit more energy. The imbalance between the upper and lower pendulum is what exerts a net horizontal force onto the table.
i don't think mikey meant the frequency wouldn't change. he just meant they all had to be default set to 120bpm or something for eg. also yes it would work in different frequencies, but I would think they'd go out of sync once in a while, due to particular pendulums swinging with more strength than others.
wow =D It's amazing how connected everything is. Much like when scientists try to isolate a crystal for the first time. If 6 scientists in 6 countries doing 6 different attempts to isolate something in crystal form are working, and 1 of them successfully isolates, then it becomes easier and faster for the other 5 scientists attempting the crystallization to succeed! So amazing!
You can see the table vibrating and swaying back and forth. The weight of the base of the metronomes causes a push and pull of the plane, eventually syncing every metronome to the same vibration. Tesla did a lot of work with this type of physics. Check it out. en.wikipedia(.)org/wiki/Tesla's_oscillator
I think you're right. When they all went into sync, I noticed the table moving freely.
Actually if you look more closely you will see that the table is swaying before they even start them swinging, by the end they all match the frequency that the table is swaying at... now thats some basic physics.
meme-meme:This occurs because the table on which the metronomes are placed upon is moving in time with the average frequency of oscillation of the metronomes. As time passes, and the metronomes begin to slow due to dampening, the swaying of the surface, transfers its energy back to the metronomes (which is why they begin to sway with more force after a while) at a natural frequency equal to that of the sway of the table and the average frequency of oscillation of the metronomes prior to the sync
actually they moving the table to call the pace, moving right mean the metronome lean right, moving the table left and mean it will lean left, that's all there is to it. nothing about energy or anything else, the table call the pace only.
actually it is. as you can see, the surface where all the metronomes are, is a very light material (i dont know the name of it in english, sorry about that) and at the end all the metronomes are syncrhonized because of the movement of the surface, its actually the "mid" frecuency of all the metronomes
Like neighboring guitar strings, the vibrations of one oscillator radiates mechanical energy because of the loose coupling of the base board. Leading oscillators tend to be held back by lagging neighbors, and energy equalizes amongst them until all are in perfect synchrony where the exchange stops and no further transfer one way or the other occurs because they are all in sync.
Basic physics at work.
it's the resonant frequency of the board swaying that forces the metronomes to sync.
i'm no fun at parties...
Yes, the table is moving. The movement is the result of the kinetic energy being released by the metronomes' movement. The table is set up so that it CAN move and allow the energy transfer. The synchronization comes as a result of the dominant wave of energy overtaking and causing the metronomes that are out of sync to "course correct" as it were. Because the table can accept the transfer of energy it reinforces the shift in synchronization.
I believe that the table receives energy, and then suddenly it releases energy which synchronizes the ticks of those metronomes.
The table is not still, so the oscillations spread with the table, syncing all the metronomes.
At the end you can see the table rocking in sync.
So try again on a stable surface and amaze us.
I don't agree. I think that the metronomes could have been perfectly accurate, but on a floating surface they'll change tempo anyway, because of the action of the other ones. The motion of the surface caused by the others affects the tempo of each metronome till they reach the synchronization.
Is this a composed piece by Phillip Glass?
In many ways, its a lot more interesting than most of his work :-)
The other metronomes (by means of shaking the board they're on) actually change the frequency of surrounding metronomes. If their frequencies were identical and unchanging, they would never be in sync.
It works if they're set to different frequencies.
yes but since this is not about their accuracy. its about the fact that they are on a surface that "feels" the movement influencing it, so yeah they all must have made irregular times in order to sync up.
Метрономы стоят на подвижной оснонове, которая начинает раскачиваться в сторону максимального кол-ва одинаковых колебаний, остальные метрономы качаются с спротивлением, что в итоге приводит их к общему порядку - вот как я думаю это происходит.
I don't know why, but it is an oddly satisfying sound when they all get together.
Look closely and see that metronome starts from that motion ahead of being approached by the fingers. One the metronome body moves under the free pendulum, it causes the spring energy to begin to be released by the first click. that metronome now adds new energy to the system. Like when you through your hips left, and your chest moves right in a dance, right? The wave action has a crest point and a trough point.
That second one in on the far right nearly brought my OCD to tears.
this is because of the table is not sotrong enough to be stable , and the moves of the metronomes mix all together to one movement , i think so
This is the same basic principle for weight-based Artificial Neural Networks. The average error is back-propogated to all individual metronomes and eventually the error in their tempos even out. It's quite amazing how applicable the concept of ANN's are with many real life phenomena.
It needs to be a moving platform so the movement of each metronome can affect each other. It acts like a giant metronome.
If you put two (of the same?) pendulum clocks side by side they'll synchronise too. I wonder why a non-moving table stops the wave entrainment with metronomes?
Did anyone else notice that the platform they are on is moving? It looks like it is suspended somehow. That has to be how the motion is being synchronized. I don't think this would happen if they were all on a solid surface.
The constant, repetitive table shaking caused and forced the metronomes to gradually become synchronized.
I think I see what you're saying. I'm not sure whether it would work with pendulums of varying frequencies. Maybe to a degree. You can probably allow greater variance in pendulum size and frequency if you also increase the allowable amount of swing on the platform. Up to a certain point, of course.
It would, but through vibrations in the material, and it would probably take a LOT longer.
Two pendulum clocks on a stationary wall will eventually synchronize.
Haven't seen it mentioned yet, but I'm guessing it's the waving of the platform (ironing board?) they're on that forces them in sink.. Only possible way. If they were all set to same temp then they would remain out of sink as they started. Different temps would not have held the sync as shown.
The metronomes are off set at first but are they set to the same beat-per-minute rate?
I'm guessing all the metronomes would have to be set to the same time period (height of the weight) for this to work… or would they?
Tomsonic41 yes they would. you can see the table they are on slowly start moving back a fourth, that's what helps synchronizes them.
Is it because the shift of the table causes them all to eventually move in sync?
LOL. Though....I think technically no. As having them in sync is the lowest energy state in this instance. Having them out of sync on a moving object would be a higher energy state and funnily a more "ordered/complex" state, thus by syncronising they are tending towards a lower and more stable state. So entropy is still progressing not reversing
Aparte de la mesa, también es la fuerza que ejercen al moverse de un lado para otro, cuantos más haya moviéndose al mismo lado, todos cogerán esa misma "postura", gracias al movimiento de la mesa y la fuerza ejercida del movimiento que hacen.
That's a great explanation for people like me, who studied biology and haven't a clue about these things.
Can you explain why the one that is in the far right column, second from the front, which at one point is in time but in the opposite direction ends up changing direction? I'm going to guess that it's something to do with vibrations having direction? (I'm thinking wavelength graphs etc?)
I don't know exactly how they did it, but what I would do is just set all metronomes to the same frequency, so they start out of phase but with the same frequency. Then I would gently rock the surface they are on with the same exact frequency, and slowly metronomes internal phase will be coerced to the external phase.
I suspect that the motion of the table that the metronomes are on is in sync with the greatest number of metronomes simultaneous movement which either slows or speeds the others to the majority movement...
What happens if you set them to different rates that are integer multiples of each other?
That's exactly right, the platform is hanging from 4 strings attached to the wooden bar at the top, allowing each metronome to transfer it's energy into the platform.
In the case of the out-of sync metronome, it matters not which way it deflects. If it starts to lead the others, it will be depleted of energy as the ball loses potential energy and eventually settles like the others; if it start to lag the others, it will start to acquire energy from the others. Eventually, all metronomes reach the potential valley, they have equalized with each other, happy at the potential valley that synchrony represents.