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Complexity

Vision dynamics and hallucinated patterns

Fri, 2008-11-28 15:06 — Mark Dow

Vision dynamics and hallucinated patterns

A set of links related to commonly percieved patterns that are different from visual stimulus patterns, and how they might be related to cortical implementation of human vision.

Web predictions

Thu, 2008-07-31 09:23 — PSR

 TED Video which speculates on the next 5000 days of the web. Infers connections between web and brain strucutre interconnectivity.

Also a nice fluid dynamics video of experiments being done on the interntational space station in micro gravity.

2x2 symmetric L-systems

Fri, 2008-07-11 14:42 — Mark Dow

2x2 symmetric L-systems

"Symmetry is a complexity-reducing concept; seek it everywhere." Alan Perlis

   The simplest 2x2 replacement systems with rules that are globally and locally symmetric.
   
    Many other types of systems also have a large number of symmetries, for example:

Engineering and constructing meso-scale redundant materials

Sun, 2008-06-29 20:48 — Mark Dow

 

Engineering and constructing meso-scale redundant materials

 

How is it posssible to rationally design and make materials that have highly organized micro-structure?

Periodic and pseudo random structure occurs in many naturally formed materials, but not necessarily at the desired scale, or with a specific repeated unit or material. Non-periodic but deterministic structure is less common in non-living physical systems, but is the rule for living systems.

2x2 4 rotation cyclic

Fri, 2008-05-30 10:05 — Mark Dow

2x2 4-rotation cyclic L-systems

 

parasitic wasps

Sat, 2008-03-08 19:45 — PSR

Interesting video on a parasitic wasp life cycle which utilizes a spider.  And another parasitic wasp that utilizes a caterpillar.

 

Self-generating patterns

Mon, 2008-02-18 18:03 — Mark Dow

A few examples and viewpoints on emergence of patterns

 

2008-02-05 psr

Tue, 2008-02-05 12:55 — PSR

I've been working at learning to play on the guitar the 'Mount Everest' of Bach's compositions for solo instrument: the Chaconne. This radio broadcast mp3 of the fiddle version is worth a listen in that they discuss some of its meaning and implications. Some powerful metaphors are used to describe it such as the seasons representation of a man's life.

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