Synchronisation

Synchronisation of 5 coupled metronomes done in Lancaster University, Physics Dep, Nonlinear dynamics and medical physics group.
Emails related to this video can be sent to:
a.bahraminasabNOSPAM at gmail dot com.

Some explanation by 'shoonya' which I think is pretty good:

Here you go: metronomes (or "pendula") when on table, oscillate with random phases, since that is how they started and they are "uncoupled" (no energy/information flows from one to other so they do not "know" each other.) When they are all together on the cans, notice that the cans themselves oscillate little, providing coupling/information crossover. which forces "synchronization" in periodic systems (discovered by Huygens in 17th century).

A useful book: "Synchronization: A Universal Concept in Nonlinear Sciences " by Arkady Pikovsky, Michael Rosenblum and Jurgen Kurths.


A scientific article: http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=AJPI...
My personal homepage:
https://sites.google.com/site/alirezabahraminasab/

Reference to the original video: http://youtube.com/watch?v=RMVxVbCIPjg

Category:

Education

Tags:

• Synchronization
• metronomes
• pendulum
• Pendulum (band)

[dogdove]

This is not helping me fix my car AT ALL.

[bigbluemusic]

Explains why most drummers improve on a couple of cans!

[timonenpumba123]

HIPNOTIZZ

[Danny9193]

watch the metronomes, you are feeling sleepy, you are falling into a deap uncontrolable comma

[NUUUPARU]

TUK TUK TUK TUK TUK TUK TUK TUK TUK TUK TUK TUK TUK TUK TUK TUK

[OuranianCyclops]

how did i got here from modal logic and systems theory under determinism?

[ChrisArnol9010]

@nosnibor800 Excuse my simple mind but.. in standard English please?

[ThoseWhoStayUofM]

@nosnibor800 recall from introductory mechanics that linear oscillators have fixed frequency given by system parameters e.g. for pendulum f = sqrt(g/L). In fact, this is simply a leading order term in an expansion about a small amplitude. In synchronization, nonlinear oscillators adjust their period by changing their amplitude. The non linearity of these metronomes comes from their large amplitude and the drive mechanism which injects energy into the system.

I hope this explanation helps.

[wolfson109]

@shakespeareaholic If you think it's fake, try it yourself. It does work.

[nosnibor800]

Interesting. Can anyone explain why it happens. Injection locking can be used RF and is the principle used behind homodyne receivers and I think in super regenerative receivers.

[BigCheez8682]

@ssslawek ok, thanks

[strugsnotdrugs]

This is amazing!