“Dude You’re off tempo!” “Just give it a second dude”

For the next gig Im gonna put my whole band on a stage with wheels!

For those of you interested in the "why". There are an odd number of metronomes. This makes sure there's a force greater in one direction as 3/5 metronomes will swing that way. This exerts force on metronomes that aren't moving that direction, nudging them backwards from their momentum. This slight nudge backwards counters the pendulum effect causing the metronome to move further towards the side with greater force. Over time this will cause all metronomes to synchronize to the greater force pendulum. If you were to do this with four metronomes it might get interesting as 2 are going left, 2 are going right, but eventually friction in the bearings will force a side.

It's cool how the 4 on the right are lending some of their energy to the one on the left. Watch the left one. It has a smaller swing than the others and gradually gets greater until it matches the others. For anyone not understanding this the cans and board are the key. The board shifts slightly back and forth dampening some while adding energy to others until synchronicity is achieved.

Conclusion: you need beer cans to synchronize!

This shows the inordinate amount of peer pressure metronomes experience in daily life.

This can be a life lesson if you can think on a larger scale.

I love this no matter how many times I see it demonstrated.

they started off as a rag tag group of dancers, but after training they learned the true meaning of teamwork and became friends.

Just as satisfying as when your blinker matches up with the car in front of you.

If I had to guess, the swinging of each metronome got transferred into the plank they were balancing on, which slowly sped up and slowed down each one until they swung together.

It's amazing how the amplitudes eventually sync as well as the frequency.

The one on the far left may be a slow learner but he's got spunk.

It's a classic saying, "If you can't beat them, join them."

Interesting! Even the metronome on the far left gets in synch with the others. More interesting yet is the how the far left metronome acquires more energy, so that it's period of swing becomes the same as the others, even though it started out slower. I wonder what would happen if the weights on the metronome arms were adjusted such that 2 metronomes had the longest periods, and 2 had the shortest, and the other 2 were randomly set.

This pleases my intuition greatly

algorithm be like "he'll watch anything at this point"

I have to admit it, at the end I felt the need to join into their little dance

The energy at the top of the movements is dispersed down into the table (besides the normal constant forces acting against them) and because they all move with the same frequency of motion their transfer of energy harmonizes. Like ripples that overlap but eventually join into one larger ripple/wave.

Beautiful and Harmonious!

I feel like this is the kind of discovery someone could have made only because they were bored out of their mind one day

This is the definition of "Oh yeah, it's all coming together"

It's an equalizing of forces applied by the metronomes. Since the platform under them is moving that force is being enacted on all the metronomes by the metronomes.

Shoutout to the one metronome that refused to sync up and kept its own beat for as long as it could. Don't feel bad man, peer pressure is hard to resist.

The left one is me trying to repeat the moves that I don't remember after others during the group dance

When women start living together

I think this happens because the metronomes average out one direction, so if three swing left and two swing right, the average is swinging left, causing the platform to move in that direction and weaken the rightward swinging of the two metronomes. Eventually, those two are so weakened that they stop entirely, but then the motion of the platform causes them to swing again, this time in the direction of the other metronomes, thus causing them to sync up. This is just a theory though, I have no way to confirm or deny this, but it makes sense to me.

great demonstration of how the universe tends towards maximum entropy

When you’re at a stop light and you notice 2 different car’s turn signals start to synchronize.

Damn, i saw this video a few years back and had no clue how it worked (was like 14 at the time) but coming back to it with a degree in physics i can confidently say i still have no clue whats going on

This is so nice.

I could easily watch this all day. In fact, I already have.

Idk why UKposts is pushing multiple synchronization videos at me but now that I have clicked, I shall now proceed down this rabbit hole, wish me luck

So the lesson here is that I need to put all of my band mates on a sheet of wood and some soda cans, then we'll finally play in time?

What amazed me was someone owned 5 identical metronomes

I'll bet the mathematical function that represents that damping oscillation is even more beautiful than the physical appearance of the thing.

As a guitarist for over 40 years, this is how the band starts off. We hope we can get the cans rolling when the audience gets intoxicated .

What an elegant demonstration of an obscure sounding physics concept. If only school had been more like this....

Love how the differences in sounds meld into one

"What is he doing?" Morpheus: "He is Beginning to believe!"

when you don't want to dance with everyone, but the music just gets you...

When waiting to make a left turn I wait for this with everyone's turn signal. So satisfying when it happens.

This is beautiful simple genius

When all of them start moving synchronicly, it's strangely hypnotising

Once they started synchronising... the moving parts began to look like hands flipping you off, now all in unison lol

When this was posted ten years ago it explained a lot, it still does, but it did back then too.

This is so satisfying. It just *feels* right.

This is exactly what learning the drums sounds like

Spontaneous Synchronization 8 years after this video was uploaded: it's my time to shine

for some reason this always amazes me i just love to watch it happen when my dad turns on his blinker and it starts to match the car in front of us

Someone: Why do you like physics and mathematics? Me:

If anyone wonders how this works: the rocking of the base provides resistance for the swinging arms, which slows down their motion in the opposite direction, and propels it in the correct direction. It's like continuously nudging someone the right way when they're dizzy.

Just listening to them work their way into harmony is pretty calming.

Beautiful

I like to think that this world really likes it when groups of stuff works together, like people, molecules, or in this case, metronomes.

So this is where UKposts takes me when I look for “how to figure my life out”

Watching the blinker in the car in front of you while listening to your blinker be like

The sound of the audience's applause at the end of a performance resembles the sound of waves, with each rendition at a different tempo, but soon everyone clapping in synchronization. The movement of the ground reflecting the reciprocating force of the pendulums of these metronomes eventually made all the pendulums of all the metronomes synchronize into a single rhythm. As I'm a musician, I believe that all repetitive motion is circular motion, and that drum rhythm is an expression of gravity. Real musicians play inaudible sounds and feel invisible things.

They look so cute, acting like happy little brothers. The cans brings then to that synch, because they are adjusting the center of the force the swing causes.

Any kid who's ever "boosted" someone on a trampoline gets this phenomenon intuitively.

this demonstrates the intrinsic power in two cans of coke

C'est magnifique !🤩

"you tend to become the sum total of the 5 people you are closest to"

The moment they sync up is what happiness looks and sounds like.

To me they look like a band of tiny blocks with little guitars, and I find it so cute

Made me smile even knowing it would happen.

This made my brain happy

That one on the left was having a hard time. I was worried. I'm glad he found his way.

The explanation for this is that the vibrations and kinetic energy of each metronome is transferred into the surface below which moves depending on the net force. This same force is disturbed back to each metronome. The most stable energy state is when they are all in sync with each other and not conflicting each other’s movement. When they eventually reach that state, they can’t get back out the cycle since it’s the most stable.

The magic of stationary waves!!! :)

They are vibing together.

Beautiful. It is important to note that the synchronising effect is communicated through their common base. The 'stragglers' are nudged into sync by the momentum of the 'increasing majority'.

And 8 years later this video arrived in my recommended and I couldn’t be happier

Legend has it they're still clicking in unison to this very day

Beautiful!

We all have that in common... We have no idea why is this in our recommendation, but we found it interesting anyway

When you’re waiting to make a left turn and your blinker clicking matches up with the blinker of the person in front of you.

It's simple how it works and you can be sure it would not work on a flat fixed surface. Within the provided rolling plate form it sets up a oscillator circuit which influences each metronome.

This is inspiring me to become a better person..

For the sake of knownness, the mathematical model describing this behavior is the Kuramoto model.

0:41 All the clocks in the school collectively growing louder as the end of the class draws near but you've only answered 13 out of 100 questions so far.

Life lesson: Never put 5000 metronomes on a bridge you intend to keep.

This is, without a shadow of a doubt, the coolest youtube clip I've ever seen.

This is what it feels like when your car and the car in front of you’s blinkers start going at the same time

Yooo they should start a band, I like these guys. “Clunk clunk clunk clunk clunk clunk” catchy asf💯💯

Love this!

When the percussion finally gets their act together and the band stays in time

The sound they make when they synchronize sounds like they are marching

I've watched enough bird videos to know they would love dancing to this.

I think that when we feel pleasure, and we get what we want; it is because it is synchronized with the properties of my personality and how we operate mentally. What you love is what defines you and your interests and what you support, not what you hate and what harms you. Harmoniousness = Pleasure

They are united by the board and "wheels", as one unit, all finding common center. So cool...

Said one pendulum to the other, "This is the way."

I dunno why, but it made me smile when they all finally synced up.

You are who you spend time with !

the cans rolling underneath create the synchronous movement.

When they synchronized, my inner self feels "awww"..

Sometimes UKposts decides everyone in the entire world would like this video made eight years ago

Anyone not sure how this happens, look at what their on. Each action has an equal and opposite reaction. The force of the moving arm imparts the opposite action to the base. Since there are five of them this action is the sum of all five arms. To begin each is in a different phase, this makes each interact slightly differently with the motion of the base. Slowing or accelerating the arm. In time this interaction will cause each arm to be in-phase with each other.

So I'm guessing that it's the subtle rolling back and forth of the soda cans that "encourage" the metronomes to eventually reach synchronization.

That's how still Dr.D.R.E and snoop found the music to a historical song