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public:t-720-atai:atai-25:patterns [2025/01/07 23:10] thorissonpublic:t-720-atai:atai-25:patterns [2025/01/07 23:11] (current) thorisson
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 +====How the Belousov-Zhabotinsky Reaction Works====
 +
 +|  {{public:t-720-atai:zhabotinsky-reaction-1.png?400|Belousov-Zhabotinsky Reaction}}  |
 +|  A Belousov–Zhabotinsky reaction, or BZ reaction, is one of a class of reactions that serve as a classical example of non-equilibrium thermodynamics, resulting in the establishment of a nonlinear chemical oscillator. [[https://en.wikipedia.org/wiki/Belousov–Zhabotinsky_reaction|Wikipedia]]  |
 +
 +\\
 +\\
 +====Cellular Automata====
 +|  What it is  | An algorithmic way to program interaction between (large numbers of) rule-determined "agents" or cells.  [[https://en.wikipedia.org/wiki/Cellular_automaton|Wikipedia]]  |
 +|  Why it's important  | Powerful method to explore the concept of emergence. Also used for simulating the evolution of complex systems.    |
 +|  Explicates  | Interaction of rules.    |
 +|  Typical manifestation  | 1D or 2D grid with cell behavior governed by rules of interaction. Each cell has a scope of what it "sees" (its range of "causal ties").   |
 +
 +
 +\\
 +\\
 +
 +====CA Example 1====
 +|  In this example   |
 +|  **Green --> Brown IF one or more are //true://** \\ * There are more than 20 green patches around and lifetime exceeds 30 \\ * There are less than 12 green patches around and lifetime exceeds 20 \\ * The number of surrounding green patches > 25 \\ * Lifetime > 60 ticks \\ **Brown --> Green IF both are //true//:** \\ * Number of surrounding green patches > 8 and heir lifetime combined > 80 \\ * Number of surrounding brown patches > 10  |
 +
 +
 +\\
 +\\
 +
 +==== Stephen Wolfram's CA Work====
 +|  CA  | http://mathworld.wolfram.com/CellularAutomaton.html   |
 +|  Book  | A New Kind of Science.   |
 +|  Why it's important  | Major analysis of rules for 1-D CAs. Most comprehensive work on CAs to date.    |
 +|  Rule 30   | Very simple **deterministic** rule that gives rise to very complex //seemingly random// patterns. \\ Source: [[https://en.wikipedia.org/wiki/Rule_30|Wikipedia]]    |
 +
 +\\
 +\\
 +
 +====== Videos of Emergent Phenomena ======
 +
 +Corn starch shaken at audible frequencies: http://youtube.com/watch?v=WTCkVh9CWT8&feature=related
 +
 +Corn starch shaken at 120 Herz: https://www.youtube.com/watch?v=bmyJdLiTRPo
 +
 +Posable iron puck in a liquid-nitrogen-induced magentic field: http://youtube.com/watch?v=c3asSdngzLs&feature=related
 +
 +The Weissenberg effect: http://youtube.com/watch?v=npZzlgKjs0I&feature=related
 +
 +Ferromagnetic fluid: http://www.youtube.com/watch?v=jY72o-JAp0Q
 +
 +And just in case you thought this talk about self-organization is mumbo-jumpo and a waste of time: https://newatlas.com/medical/self-assembling-molecules-suffocate-cancer-cells-hours/
 +
 +\\
 +\\
 +\\
 +
 +\\
 +2024(c)K.R.Thórisson
/var/www/cadia.ru.is/wiki/data/attic/public/t-720-atai/atai-25/patterns.1736291413.txt.gz · Last modified: 2025/01/07 23:10 by thorisson

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