from teraswam to continuum mechanics, and rheology?

Could RHEOLOGY and continuum mechanics be a source of insight for the continuum limit from internet of things to teraswarm and beyond?

That, plus a form of general relativity that has to take into account the interactions peculiar to media?

Rheology (/riːˈɒlədʒi/; from Greek ῥέω rhéō, "flow" and -λoγία, -logia, "study of") is the study of the flow of matter, primarily in a liquid state, but also as 'soft solids' or solids under conditions in which they respond with plastic flow rather than deforming elastically in response to an applied force.[1] It applies to substances which have a complex microstructure, such as muds, sludges, suspensions, polymers and other glass formers (e.g., silicates), as well as many foods and additives, bodily fluids (e.g., blood) and other biological materials or other materials which belong to the class of soft matter.

Henriques, Julian F.; Tiainen, Milla and Valiaho, Pasi. 2014. Rhythm Returns: Movement and Cultural Theory. Body and Society, 20(3/4), pp. 3-29

http://research.gold.ac.uk/10747/

Henriques, Julian F.; Tiainen, Milla and Valiaho, Pasi. 2014. Rhythm Returns: Movement and Cultural Theory. Body and Society, 20(3/4), pp. 3-29. [Article]

No full text available
Official URL: http://bod.sagepub.com/

Abstract or Description


This introduction charts several of rhythm's various returns as a way of laying out the theoretical and methodological field in which the articles of this special issue find their place. While Henri Lefebvre’s rhythmanalysis is perhaps familiar to many, rhythm has appeared in a wide repertoire of guises, in many disciplines over the decades and indeed the centuries. This introduction attends to the particular roles of rhythm in the formation of modernity ranging from the processes of industrialization and the proliferation of new media technologies to film and literary aesthetics as well as conceptualizations of human psychology, social behaviour and physiology. These are some of the historical antecedents to the contemporary understandings of rhythm within body studies to which most of the contributions to this issue are devoted. In this respect, the introduction outlines recent approaches to rhythm as vibration, a force of the virtual, and an intensive excess outside consciousness.

body culture
modernity
phenomenology
psychology
rhythmanalysis
vibration
the virtual


Item Type: Article
Identification Number (DOI): 10.1177/1357034X14547393
Departments, Centres and Research Units: Media and Communications
Item ID: 10747
Date Deposited: 13 Oct 2014 10:00
Last Modified: 16 Jun 2015 12:42
URI: http://research.gold.ac.uk/id/eprint/10747

complex systems phenomena of critical slowing down, and flickering

Hi Felix,

On Feb 20, 2016, at 8:00 AM, Fel Reb <rebfel@gmail.com> wrote:

I don't have access to respond to the posthaven blog, so I'm sending it directly to you....

Your questions made me think of meta-stability and Simondon... I don't know if if I'm off in left field but here are my two cents' worth... Gotta say though that f is not just any (differentiable) scalar function… it's a nice way at "inducing" continuity where the underlying may not have it..

Yes, right — in fact distribution theory : representing a function by convolving against approximations to the identity with a kernel that converges to the Dirac delta function is a well known and beautiful way to densely approximate any integrable function — a much vaster set of functions, which includes wildly non-differentiable and even discontinuous functions — by infinitely differentiable functions.

If the second time-derivative is going to zero, one would be approaching a steady state of no change, i.e. no new energy entering or leaving the system.

The second time-derivative of what, prices of Apple stock, immigrant flows through Ellis Island ?  That is only the case when we’re talking about position (potential energy mass * dx).   

If the second time-derivative is positive, why would that induce flickering? If the second derivative is positive at a point, are not you not only providing half the story? Wouldn’t you need to see how the change is changing over time rather than tending? 

Yes exactly, that’s why I speak of second time-derivative f’’: change is f’  and change of change is f’’.

If the potential is locally a quadratic with nonzero second derivative, then it looks like a parabola (in potential space).   The classic dynamic (solution) subject to that sort of potential (differential equation) is harmonic oscillation. 


For the thing to flicker, one would need discontinuities in the system or very tight oscillations to the changing system... tending-positive to infinity, finding another “plateau” of zero (or near zero) and then another tending-negative to infinity and repeat
This flickering effect feels like a cycling of meta-stability where contributing factors within the system impede the system from acquiring a one way or the other... or exit that meta-stable state... the correlation lengths would depend on the energy dynamics of the system, how rough the cycling is, i.e. how much energy is required to get out of the troughs of the meta-stability yet not enough to break away from the cycling and revert to the meta-stable trough. Experimentally, to break the spell one needs to introduce ever larger amounts of energy, heighten the amplitude of the energy dynamics as roughness into the cycling so one overwhelms the threshold boundary and break free from the prevalent dynamic onto another regime. You gotta introduce some rough stuff into the system, i.e. introduce difference or change, to mix it up and break free from the toxic stability....

Does this make sense?

Not clear what you mean by all this.  Are we speaking of the base space, or the state space of configurations, or the space of potential energy (functional on configurations)?

I hope this doesn’t land like a hair in the soup, like they say in Qc French.

hahaha , what’s that in quebecois?

Best, Felix

P.S. I found this reference on my way to somewhere else... thought it might be an interesting comment to the death scenario of the . 

From Nature

Universal resilience patterns in complex networks

Jianxi Gao, Baruch Barzel & Albert-László Barabási

Nature 530, 307–312 (18 February 2016) doi:10.1038/nature16948

Received 13 July 2015 Accepted 14 December 2015 Published online 17 February 2016

Félix


Félix Rebolledo

Email: rebfel@gmail.com

Fone: 51 9110 9920

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RHUTHMOS / Janvier 2016

Worth subscribing to RHUTHMOS!
And worth learning français!
Bien sur!
Xin Wei

_________________________________________________________________________________________________

Begin forwarded message:

From: Pascal Michon <pascal.michon1@sfr.fr>
Subject: Dernières publications sur RHUTHMOS / Janvier 2016
Date: January 27, 2016 at 12:51:55 PM MST
To: 'Pascal Michon' <pascal.michon1@sfr.fr>

Dernières publications sur RHUTHMOS / Janvier 2016
Plateforme internationale et transdisciplinaire de recherche
sur les rythmes dans les sciences, les philosophies et les arts

Janvier 2016
Derniers articles parus
* F. Bisson, Ainsi marche Anna Cruz

Aux EDITIONS RHUTHMOS
En librairie
* M. Salgaro (Hrsg.), M. Vangi (Hrsg.), Mythos Rhythmus.Wissenschaft, Kunst und Literatur um 1900
*J.-L. Evard, Du sensible au sensé

Galeries
* Hommage à Daniel Buren
* Seeing in the Rain – Chris Gallagher (1981)
* Variations on a Cellophane Wrapper – David Rimmer (1972)
* Savage Messiah – Ken Russell (1972)
* La jetée – Chris Marker (1962)
* Ring-o-graphy – Alexandra Savina (2011)
* Meilleurs Vœux 2016 – Marie Paccou et al. –École des Métiers du Cinéma d’Animation
* My Ship – Kurt Weill (1942)
* Les yeux noirs – Django Reinhardt (1947)
* Mélodie au crépuscule – Django Reinhardt (1947)
* Sonnet 130 (1609) – William Shakespeare – Read by Alan Rickman
* Daffodils – William Wordsworth (1804)
Actualités
* TRANSDISCIPLINAIRES – Call For Papers For the Conference : « Rhythm as Pattern and Variation : Political, Social and Artistic Inflections »
Débats



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analog rhythm jam session

Thanks to Adrian Freed for drawing attention to this analog machine + human rhythm jam session https://www.facebook.com/guanitoweb/videos/10206485558432152/ “Viviendo la nochebuena en un ricon de sevillano aquí os muestro algo nuevo la máquina de compas y os deseo una feliz navidad a todos, con armonia, sentimiento y compas”