### Wednesday, February 25, 2015

## Slides for "Boolean Networks and Self-Organization" (February 25, 2015) Lecture online

Labels: #BooleanNetworks, #cellularAutomata, #DynamicalSystems, #self-organization

## Links for "Boolean Networks and Self-Organization" lecture

Random Boolean Network Simple Examples

Random Boolean Networks Applet

Discrete Dynamics Lab

Network Workbench. See Discrete Network Dynamics.

Booleannet tool for simulating biological regulatory networks in a boolean formalism

Muramator Robot

Spontaneous Order and Self Organization @ Scholarpedia

Labels: #BooleanNetworks, #cellularAutomata, #edgeOfChaos, #self-organization

### Monday, February 23, 2015

## Slides for "Chaos and the Logistic Map," February 23, 2015 Lectures online

Labels: #BooleanNetworks, #chaos, #discreteDynamicalSystems, #logisticMap

## Links for chaos and logistic map lecture

Iteration versus time for the Logistic map

Time Series of Logistic Map

Andrew Clem ~ Chaos theory contains a very nice explanation of the logistic map and the white bands of periodic behavior inside the chaotic range. Try r=3.84 in the applet used in class, to see a cycle of 3 arise.

See also The birth of period 3, revisited.

Labels: #chaos, #logisticMap

### Sunday, February 22, 2015

## Lecture Notes (Chapter 4): Self-organization and emergent complex behavior

Labels: #DynamicalSystems, #evolvability, #geneRegulation, #robustness, #self-organization

### Wednesday, February 18, 2015

## Slides for "Dynamical Systems and Attractor Behavior" (February 18, 2015) lecture online

Labels: #Attractors, #chaos, #DynamicalSystems, #StrangeAttractors

## links for "Dynamical Systems and Attractor Behavior" lecture

Turing Reaction-Diffusion Model of Morphogenesis: an applet by Chris Jennings .

Graphics Research on Reaction-Diffusion

synthetic texture using reaction-diffusion

3-Body Gravitational Problem

Lorenz Attractor Applet

Lorenz Attractor Space

Explore Trajectories in the Lorenz Attractor

Sensitive dependence on initial conditions in the Lorenz Attractor. Another one.

Labels: #chaos, #DynamicalSystems, #ReactionDiffusion, #Turing

### Tuesday, February 17, 2015

## Slides for "From Recursion to Dynamics" (February 16, 2015) lecture online

Labels: attractor behavior, dynamical systems, L-systems, self-similarity

### Monday, February 16, 2015

## Links for "Recursion and Dynamics" Lecture

**Evolutionary Robots**

3D Genbots using L-systems

The GOLEM Project.

See also the research pages pages of Karl Sims, Jordan Pollack, Hod Lipson, Josh Bongard, Dario Floreano, Randy Beer, and Rolf Pfeifer.

**Gravitational Pendulum**

Labels: #chaos, #discreteDynamicalSystems, #logisticMap, #Lsystems, #recursion

### Tuesday, February 10, 2015

## Goblins! Fractal Soundtracks

Labels: #fractals, #simulations, #SocialModels

### Monday, February 09, 2015

## IBM Fractalize

Labels: #fractals

## Slides for "Self-Similarity and L-Systems" (February 9, 2015) lecture online

Labels: #fractals, #L-systems, #modeling, #Self-similarity

## Links for L-Systems Lecture

**Fractals**

**L-Systems**

- A good description by Chris Jennings
- Gary Flake's Applets
- Generate a Tree as an L-System
- L-Systems Explorer
- The Algorithmic Beauty of Plants
- Self-similar syncopations: Fibonacci, L-systems, limericks and ragtime.
- Symbolic Composer
- Columbia University Computer Music Center

Labels: #development, #fractals, #Lsystems, #morphogenesis

### Friday, February 06, 2015

## Safecracking the Brain

## Meet Walter Pitts, the Homeless Genius Who Revolutionized Artificial Intelligence

Labels: #AI, #Cybernetics

### Wednesday, February 04, 2015

## Slides for Modeling Principles of Organization lecture (Feb 4, 2015)

Labels: #Fibonacci, #iteration, #modeling, #morphogenesis

## Fibonacci 3D "living" Sculptures

Labels: #Art, #Fibonacci

## Eclipse Prediction on the Ancient Greek Astronomical Calculating Machine Known as the Antikythera Mechanism

"The ancient Greeks built a machine that can predict, for many years ahead, not only eclipses but also a remarkable array of their characteristics, such as directions of obscuration, magnitude, colour, angular diameter of the Moon, relationship with the Moon’s node and eclipse time. It was not entirely accurate, but it was an astonishing achievement for its era." Full paper @ PLOS ONE

Labels: #AncientTechnology, #AntikytheraMechanism, #Computation, #Rome, #Technology

## links for "Modeling Principles of Organization" lecture

**Fibonacci Sequence**

- Fibonacci numbers in Nature. The Romanesco Vegetable.
- Fibonacci Spiral Demo. Another Demo.
- Fibonacci Music
- Fibonacci Waltz

**D'Arcy Thompson**

- D'Arcy Wentworth Thompson (Shalizi's Bio of D'Arcy Thompson).
- D'Arcy Thompson's Affine Fish Transformations @ Wolfram
- Visualizing change in biological organisms.
- S.J. Gould. [1971] "D'Arcy Thompson and the Science of Form". New Literary History, 2 (2): 229-258
- W. Arthur [2006]. "D'Arcy Thompson and the theory of transformations".Nature Reviews Genetics 7, 401-406.
- Geometry of Growth and Form: Commentary on D'Arcy Thompson
- Java applet for shell sketching

Labels: #DArcyThompson, #Fibonacci, #modeling, #morphogenesis, #recursion

### Tuesday, February 03, 2015

## Slides for The Logical Mechanisms of Life (February 2, 2015) lecture

Labels: #ArtificialLife, #ComplexSystems, #Cybernetics, #postgenomeInformatics