Systems Theory (and the synchronization of metronomes)

If you start these metronomes at different times, they will never fully sync up with each other. After five minutes of continual movement, this is still the case. But if you place these same five metronomes on two bottles like this, something different happens. After 33 seconds, all five metronomes are synchronized. Not one stepping out of line or disrupting the pattern. Now why does this happen? This is what I am going to find out.

MUSIC:

"Take Five"
by Dave Brubeck
Published by Sony Music Entertainment Inc.

Hello there, and welcome to the bottom of the description. I'm glad you made it here. I'm also glad that you decided to watch a video that was different than the others. I hope you enjoyed it! What do you think of a video that's not about film? Please let me know what you think in the comments below.

P.S. Did you catch my stranger than normal hint at my next video?

Thanks,
Film Anatomy

[cleomar.]

Listening while reading the subtitles improves understanding.

[macmayer]

This is a great video. Well done! I showed it to my orchestra class for context. Bravo!

[cleomar.]

Please enable automatic subtitles for easier understanding.

[Stoutaragua]

Questions for you:
1. Are all metronomes initially set at the same frequency?
2. Will the sync time always be approx 33 seconds?
3. Is the sync time dependent on the metronome frequency?
4. Have you tried the experiment with metronomes at different frequencies or multiples of frequency? For example, f=10, 20, 40, 80.

[ScooBdont]

When you showed the two in phase and two in anti-phase out of the five total 4 were in phase and just one anti-phase. I wonder is there a certain amount of time to all becoming in phase depending on how many were in phase with each other? Like if three were in phase and two weren’t is there a certain amount of time before they all phase or is it kinda random. Increasing the amount of metronomes could help get more detailed answer. There’s probably already a mathematical formula to find the answer based on the size of the pendulum and frequency of cycle and other variables I’m not smart enough to think of. Cool demonstration. Gets me to thinking about how different systems in our environment might synchronize or organize when put together in a common medium or ecosphere. Thanks✌️🙂👍

[Krystalmyth]

These guys didn't need to use bottles to induce this effect. /watch?v=gFnVmuU8_Lg

[JK-eswu]

do they synchronize to original rhythm of one of the metronomes
or is the final rhythm a new one created by the forces of all the metronomes ?

[bestamerica]

'
that 5 metronomes...
are all 5 same numbers BPS but spins are little speeding motion

[manal]

Bravo, amazing video! How can this apply to two humans, or a family?

[MineStrongth]

"Metronome's" not "Metronomeses"

[Krystalmyth]

By putting it on the bottles you're just inducing sway. There are other videos proving this effect without having to induce it in this manner. You undermine yourself by using this method. The bottles sway and create a new sync based on slight motion of the cylinders beneath them. That's just, physics dude.

[pasha]

You should go study physics to find out the reason for the coupling making them synchronize. Nice to see that it makes you interested though :)