ScholarAbout 241,000 results (0.08 secKBCid wrote:Dumping a bucket of sand is not scientific. If such was the case then my 5 yr. old is a scientist.

Experimental study of critical-mass fluctuations in an evolving sandpile

GA Held, DH Solina, H Solina, DT Keane, WJ Haag… - Physical Review Letters, 1990 - APS

... which certainly shows self-organized criticality, found itto exhibit a 1/f power spectrum.

In Fig. 2(d) we plot M(t) for a 3-in.-diam base sand- pile with a distance of 0.25 in.

between the capillary tube and the top of the sandpile.

Cited by 364 - Related articles - All 7 versions

Experimental study of heaping in a two-dimensional ''sand pile''

E Clément, J Duran, J Rajchenbach - Physical review letters, 1992 - APS

In a second series of experiments we deal with oxidized steel (Hk, Hf) and oxidized

aluminum beads (Lk, Hf) beads. We readily observe that the introduction of an im-portant

bead-bead friction parameter leads to a striking change in the macroscopic behavior. In ...

Cited by 186 - Related articles - All 9 versions

1/f noise, distribution of lifetimes, and a pile of sand

HJ Jensen, K Christensen, HC Fogedby - Physical Review B, 1989 - APS

A connection between the distribution of lifetimes and the power spectrum is derived. It is

shown that the flow of sand down the slope in the cellular automaton model, considered

recently by Bak, Tang, and Wiesenfeld [Phys. Rev. Lett. 59, 381 (1987)], has a 1/f 2 power ...

Cited by 169 - Related articles - All 4 versions

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[BOOK] How nature works: the science of self-organized criticality

P Bak, P Bak - 1996 - jasss.soc.surrey.ac.uk

... the wider scientific community, that of Self-Organised Criticality. The image of the

sand pile, retaining its conical shape as more sand is added, became widely known.

Although avalanches on the sides of the pile (maintaining ...

Cited by 2862 - Related articles -

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Large-scale simulation of avalanche cluster distribution in sand pile model

SS Manna - Journal of Statistical Physics, 1990 - Springer

The avalanche cluster distribution of the sand pile model of self-organized criticality is

studied on the square lattice. A vectorized multispin coding algorithm is developed for this

study with three bits per site. The exponents characterizing the size and the lifetime of the ...

Cited by 134 - Related articles - All 4 versions

Critical exponents of the sand pile models in two dimensions

SS Manna - Physica A: Statistical Mechanics and its Applications, 1991 - Elsevier

Abstract We study three sand pile automaton models namely, the critical height, critical slope

and the critical Laplacian models in two dimensions, in which the stability criterion of the

sand columns depend on the zeroth, first and the second derivatives of the sand height ...

Cited by 117 - Related articles - All 3 versions

[PDF] from swarthmore.edu

[PDF] Self-organized criticality

P Bak, C Tang, K Wiesenfeld - Physical review A, 1988 - chaos.swarthmore.edu

... One of the models studied in this paper can be thought of as a model of a sand pile,

or al- ternatively as modeling an array of coupled pendula. ... We may think of this

arrangement as half of a symmetric sand pile with both ends open. ...

Cited by 4313 - Related articles - All 34 versions

Surface fluidization of a sand pile

P Evesque, E Szmatula, JP Denis - EPL (Europhysics Letters), 1990 - iopscience.iop.org

We investigate the capability exhibited by a vibrated sand pile to creep up into a vessel. Our

measures demonstrate that the fluidization of a heap submitted to vertical vibrations of high

enough amplitude is confined to an upper layer the thickness of which depends on the ...

Cited by 63 - Related articles - All 5 versions

Anomalous diffusion in a running sandpile model

BA Carreras, VE Lynch, DE Newman, GM Zaslavsky - Physical Review E, 1999 - APS

... sandpile boundary. In this way, the number of tracers being followed remains constant.

The slow addition of tracers to the top of the sand- pile was the right way to solve the

confinement problem in the Oslo sandpile 13. However, in ...

Cited by 47 - Related articles - BL Direct - All 8 versions

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Contact force distribution beneath a three-dimensional granular pile

R Brockbank, J Huntley, R Ball - Journal de Physique II, 1997 - hal.archives-ouvertes.fr

... which are neither solid-like nor liquid-like. One example is the pressure distribution beneath a

conical sandpile. Intuitively one expects the pressure at the base of a pile to be maximal where

the total height of material above it is maximal, Ie at the centre. However, experimental ...

Cited by 109 - Related articles -