From: scerir (scerir@libero.it)
Date: Wed Mar 13 2002 - 00:40:09 MST
> This Web page by Zoltan Neda, a theoretical physicist at
> Romania's Babes-Bolyai University, has studied/is studying
> how synchronized clapping emerges from audience's applause.
and also here ...
http://arxiv.org/abs/cond-mat/0003001
The sound of many hands clapping
Z. Neda, E. Ravasz, Y. Brechet, T. Vicsek, A.L. Barabasi
Nature, vo. 403, pp. 849 (2000)
We report on a series of measurements aimed to characterize
the development and the dynamics of the rhythmic applause
in concert halls. Our results demonstrate that while this
process shares many characteristics of other systems that
are known to synchronize, it also has features that are
unexpected and unaccounted for in many other systems.
In particular, we find that the mechanism lying at the
heart of the synchronization process is the period doubling
of the clapping rhythm. The characteristic interplay between
synchronized and unsynchronized regimes during the applause
is the result of a frustration in the systems. All results
are understandable in the framework of the Kuramoto model.
http://arxiv.org/abs/cond-mat/0006423
Physics of the rhythmic applause
Z. Neda, E. Ravasz, T. Vicsek, Y. Brechet, A.L. Barabasi
Phys. Rev. E, vol. 61, 6987 (2000)
We discuss in detail a human scale example of the
synchronization phenomenon, namely the dynamics of the
rhythmic applause. After a detailed experimental
investigation, we describe the phenomenon with
an approach based on the classical Kuramoto model.
Computer simulations based on the theoretical assumptions,
reproduce perfectly the observed dynamics. We argue that
a frustration present in the system is responsible for
the interesting interplay between synchronized and
unsynchronized regimes
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