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We provide a short proof of the 1-dimensional flat chain conjecture.

Metric Geometry · Mathematics 2026-04-01 Philippe Bouafia , Thierry De Pauw

In recent years the chain fountain became prominent for its counter-intuitive fascinating physical behavior. Most widely known is the experiment in which a long chain leaves an elevated beaker like a fountain and falls to the ground under…

Classical Physics · Physics 2020-09-02 Johannes Mayet , Friedrich Pfeiffer

The chain fountain is an entertaining, counter-intuitive phenomenon. When a chain flows up over the edge of a container and then falls to the ground below, it is observed that the top of the chain rises up above the containers edge. Here…

Classical Physics · Physics 2019-10-09 J. Pantaleone

We propose a simple model of recognition, short-term memory, long-term memory and learning.

Biological Physics · Physics 2007-05-23 Bruce Hoeneisen

We show via proof-by-construction that the chain fountain, also known as the Mould effect, is a generic consequence of energy conserving dynamics of linear chains, similar to the extra acceleration observed for hanging or falling chains.…

Popular Physics · Physics 2018-11-01 Hiroshi Yokoyama

If a chain is initially at rest in a beaker at a height h1 above the ground, and the end of the chain is pulled over the rim of the beaker and down towards the ground and then released, the chain will spontaneously "flow" out of the beaker…

Classical Physics · Physics 2014-07-09 John Simeon Biggins , Mark Warner

Given a sufficiently long bead chain in a cup, if we pull the end of the chain over the rim of the cup, the chain tends to continuously flow out of the cup, under gravity, in a common siphon process. Surprisingly enough, under certain…

Classical Physics · Physics 2017-01-02 Rogério Martins

I present a simple derivation of the de Gennes narrowing phenomenon.

Soft Condensed Matter · Physics 2023-05-16 Doru Constantin

In this note we provide a simple formula of general term of recurrent sequence.

Rings and Algebras · Mathematics 2007-05-23 S. Amghibech

We introduce the simplest model which relates the emergence of collective social/economic phenomena to the existence of a (possibly self-organized) percolation transition. We suggest a series of extensions to financial, economic, political…

adap-org · Physics 2009-10-31 Sorin Solomon , Gerard Weisbuch

In this work, we establish a continuous version of the Fountain theorem by using the framework of the weak slope for continuous functionals, which generalizes Theorem 3.6 of Willem \cite{Wi}. Then we present an application to a semilinear…

Analysis of PDEs · Mathematics 2026-04-23 Ablanvi Songo , Fabrice Colin

In the spirit of the many recent simple models of evolution inspired by statistical physics, we put forward a simple model of the evolution of such models. Like its objects of study, it is (one supposes) in principle testable and capable of…

adap-org · Physics 2007-05-23 Cosma Rohilla Shalizi , William A. Tozier

A simple model for the formation of a complex organism is introduced. Individuals can communicate and specialize, leading to an increase in productivity. If there are limits to the capacity of individuals to communicate with other…

adap-org · Physics 2009-10-30 Barbara Drossel

Using Easton collapses, we give a simplified construction of a model in which Chang's Conjecture for triples holds.

Logic · Mathematics 2024-02-16 Monroe Eskew , Masahiro Shioya

The proposed model is aimed to reveal important patterns in the behavior of a simplified financial system. The patterns could be detected as regular cycles consisting of debt bubbles and crises. Financial cycles have a well defined…

General Finance · Quantitative Finance 2016-09-19 Alexander Smirnov

This article present a new, direct and simple formula for constructing Mignotte sequences.

Cryptography and Security · Computer Science 2024-12-23 Marek Putresza

We present a simple continuous-time model of clearing in financial networks. Financial firms are represented as "tanks" filled with fluid (money), flowing in and out. Once "pipes" connecting "tanks" are open, the system reaches the clearing…

General Economics · Economics 2020-07-31 Isaac M. Sonin , Konstantin Sonin

A new variational theory of a hyperfluid is constructed which is free of the supplementary condition issue and provides a consistent model of the classical matter source in the metric-affine gravity theory.

General Relativity and Quantum Cosmology · Physics 2023-11-22 Yuri N. Obukhov , Friedrich W. Hehl

We give a new, elementary proof of the fact that metric 1-currents in the Euclidean space correspond to Federer-Fleming flat chains.

Analysis of PDEs · Mathematics 2024-11-25 Andrea Marchese , Andrea Merlo

Politics is everywhere. In this paper, I propose a simple model to demonstrate political behavior in human society.

Social and Information Networks · Computer Science 2020-12-15 Joey Huang
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