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Dissipative structures, machines, and organisms: A perspective.

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This study reveals organism-like behavior in a voltage-driven dissipative structure of conducting beads. The self-organizing tree structure exhibits end-directed evolution, seeking higher current to sustain itself.

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Area of Science:

  • Physics
  • Nonlinear Dynamics
  • Complex Systems

Background:

  • Self-organization and dissipative structures are key phenomena in nonequilibrium systems.
  • Chemical systems are prominent examples, but this study explores a novel physical system.

Purpose of the Study:

  • To investigate a voltage-driven dissipative structure formed by conducting beads in oil.
  • To analyze the complex, organism-like behaviors observed in this system.
  • To explore the concept of end-directed evolution in artificial structures.

Main Methods:

  • Utilizing a voltage-driven system with conducting beads immersed in a viscous oil medium.
  • Observing the spontaneous formation and movement of a tree-like dissipative structure.
  • Analyzing the interplay of electric fields, inter-particle interactions, and fluid dynamics.

Main Results:

  • The dissipative structure exhibits complex, organism-like dynamics, including self-formation and movement resembling a worm.
  • The structure evolves towards states of lower resistance and higher entropy production.
  • End-directed evolution was observed, with the structure seeking regions of higher electrical current.

Conclusions:

  • This physical system provides a model for understanding self-organization and emergent behaviors.
  • The observed end-directed evolution offers insights into distinguishing between machines and organisms.
  • The study opens avenues for developing a physics of organisms based on fundamental principles.