GMU:BioArt WS15/Crystals and cellular automata: Difference between revisions

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 <gallery>
 image:3-snowflakes.png| Snowflakes. Source: A New Kind of Science: Stephen Wolfram
-image:3-snowflakes-ca.png| CA Snowflakes. Source: A New Kind of Science: Stephen Wolfram
 </gallery>
 ==Crystals==
 === structure ===
+Crystal atom lattice with periodic order and glass having no periodic order of atoms
+<gallery>
+Image:2-what-is-glass2.png| Crystal and glass
+</gallery>
+more: [https://en.wikipedia.org/wiki/Crystal wikipedia]
 === crystallization and cellular automata ===
 === organigenic crystals and pearls ===
+crystals could be also produced by organisms, eg shells produce pearls
 ==Emergence of Creative Forms in Cellular Automata==
 === patterns: snowflakes, diamonds, and table salt ===
+Stephen Wolfram introduced the idea that nature could be explained by simple rules, like cellular automata
+<gallery>
+image:3-snowflakes-ca.png| CA Snowflakes. Source: A New Kind of Science: Stephen Wolfram
+</gallery>
 === cellular automata, fractals and universal computation ===
 === game of life and CA demonstrating universal computation ===
+For example, if tested, the rules of Game of Life, while evolving over generations, would look like a real fight for survival
+See for example [https://www.youtube.com/watch?v=C2vgICfQawE animated video]
+<br>more: [http://www.conwaylife.com/ Conway's "Game of Life"]
+To make things easier and to procure the results of the rules applied to the two-dimensional grid faster than one would on paper, a computer application may be used. In the application Golly46, a number of different rules can be applied and tested over the numerous generations.
+more: [http://golly.sourceforge.net/ Software: Golly]
 == Examples ==
 === Joe Davis, Bacterial Radio ===
+[http://www.biofaction.com/synth-ethic/?p=44 Joe Davis, Bacterial Radio]
 === Carsten Nicolai “Snow Noise” ===
+[http://www.carstennicolai.de/?c=works&w=snow_noise Carsten Nicolai “Snow Noise”]
 === Roger Hiorns, Seizure ===
-=== Martin Howse and Johnatan Kemp “the Crystal World” ===
+[http://www.theguardian.com/artanddesign/video/2013/jun/13/roger-hiorns-seizure-yorkshire-video Roger Hiorns, Seizure]
+=== Martin Howse and Johnatan Kemp “The Crystal World” ===
+*[http://crystal.xxn.org.uk/wiki/doku.php Project: The Crystal World]
+*[http://www.metamute.org/editorial/articles/crystal-world Text: "the crystal world" By Martin Howse and Jonathan Kemp]
+*[http://www.metamute.org/editorial/articles/garden-earthly-delights Review: THE GARDEN OF EARTHLY DELIGHTS By Matthew Fuller]
 ==Lab work (growing crystals)==
+<gallery>
+Image:IMG_2561.png
+Image:IMG_2562.png
+Image:IMG_2563.png
+</gallery>
+----
+'''Presentation on Salt crystals by Liese Endler'''
+In WS2014/15 I started working with Magnesium sulfate and Aluminum potassium sulfate. To get a saturated solution that will start growing crystals I used following receipts:
+Magnesium sulfate solution:
+mix salt and water in relation 1 to 3
+e.g. 50g magnesium sulfate + 150g distilled water (warm)
+Aluminum potassium sulfate solution:
+mix salt and water in relation 1 to 2
+g aluminum potassium sulfate + 100g distilled water (warm)
+<gallery>Working_with_crystals1.JPG </gallery>
+My  general observations on salt crystals so far:
+- once one small crystals started growing a lot more will follow (concept of the seed crystal)
+- when being exposed to music or other kinds of sonar waves / vibrations the crystals growth respond with different patterns
+- Magnesium sulfate-crystals are more easy to grow in a warm surrounding e.g. near the heater but not directly on it, sometimes it take a long time until the growing starts depending on the location of the jar the solution is in and the saturation
+- dusk, dirt or small particles of metal( e.g. from the metal spoon that one can use to mix the solution ) can interfere with the growing process
+- if you want to grow a big crystal its important to separate the one that you like the most from the others and put it into a fresh prepared solution that is cold
+<gallery> Alauncrystal_1.JPG </gallery>
+Exercise for the class:
+take a drop of magnesium sulfate-solution (MgSO4+H20) onto a microscope slide (Objektträger)
+try to work as clean as possible and take care the the drop is not full of dirt or dust. Wait a bit and than start to observe the drop through a microscope
+If you are a bit patient you can see the crystal growth.
+The salt molecules form straight lines and form solid patterns that remind of an icy surface.
+Some of the footage that I shot while observing crystaline structures and crystal growth under a microscope was used for a the fulldome-project
+[https://vimeo.com/148895787 "Crystal Cave"]