Re: Toilet bowl physics - OLD THREAD

[brian whatcott <inet@intellisys.net>]

At 11:12 6/25/97 +0200, msantos wrote:

> > As it turns out, there is a recent effort to understand the apparently
> > anti-entropic clustering of small mobile objects in a suspension.
> >
> > The collaboration from UPenn, UCSB, URochester NY, found that that
> > small polystyrene balls in water do not cluster when the balls have
> >  constant size. If a few balls of larger diameter are added, these 
> > latter start clustering at the edges in flat lozenges and hexagons.
> ...
> apologize for coming with this late after the the topic was
> discussed. Also I haven't those references easly accesible.So
> I haven't read them.
> Any other more "known" reference (Phys Rev, Langmuir,J.Stat.Phys
> and so on)?
>
> Regards,
> M.A.Santos
> msantos@etse.urv.es
In case this is your concern, I should make it clear that the 'anti-
entropic' quality of the effect is only apparent - entropy lives!

Baeyer's column gave no lit. references. However, the very best reference
to research work is that provided by researchers.
 Here are the folks involved:

Hans Christian von Baeyer
Chancellor Professor of Physics
College of William & Mary
Williamsberg
Va 
USA

Anthony D Dinsmore
Arjun G Yodh
Peter D Kaplan
U. Pennsylvania
Pa

Jennifer L Rourke
U. Rochester 
NY

David J Pine
U California Santa Barbara
Ca

Write them?
Alternatively,
Vol 37, no.3 sold for $3.95 (US)
from
The Sciences
(New York Acad. of Sciences)
Two East 63rd Street
Ny NY 10021

or telephone
212-838-0230

Regards

brian whatcott <inet@intellisys.net>
Altus OK