Gert 20120118

page set up at: http://symmetry.pen.io

username is symmetry. send me a mail to gert@test.at for the password

Gert 20120117

A link to a Chladni Setup: http://www.instructables.com/id/Mechanical-Wave-Driver-for-Chladni-Plate/?ALLSTEPS

Mathias Tuesday

What is it like to have an understanding of very advanced mathematics? http://www.quora.com/What-is-it-like-to-have-an-understanding-of-very-advanced-mathematics

Nice vector based presentation platform. Vector format based. Potentially good to draw a lot of our individual content together. http://prezi.com/

Gert 20120116

A Risset Rythm SC Patch: http://swiki.hfbk-hamburg.de:8888/MusicTechnology/826

Cymatics with fluid and regular speaker. looks a little makeshift, tho: http://www.youtube.com/watch?v=6NGJGfuIVfQ

Marcus on 20120115

This is quite a fun java app for generating examples of the 17 wallpaper groups http://escher.epfl.ch/escher/

• A little thing I just found: http://www.openprocessing.org/visuals/?visualID=1261

• Inkscape, the open source svg editor supports all 17 symmetries: http://tavmjong.free.fr/INKSCAPE/MANUAL/html/Tiles-Symmetries.html
  • Inkscape is scriptable via python, as I take: http://wiki.inkscape.org/wiki/index.php/PythonEffectTutorial.
  • May be usable for some step-by-step processing of live video footage?

I'm espcially happy about the room-modes & schuman references, since they close the circle to something we already discussed and tried (not too successfully me thinketh) @ ICA & waves. it's a lets make it work moment :)

I tried to compile scopeshapes for Intel, but failed so far. how would we translate the oscilloscope output?

I'll bring two Wiimotes, but rather than waving them around i was hoping to use the IR input. lets fix diodes to Marcus' hands for his Cello performance :) OSC enabled version avlbl.

[…]

I keep these very brief, essentially list of links.

• A Computational Model for Periodic Pattern Perception Based on Frieze and Wallpaper Groups
  • http://www.ri.cmu.edu/pub_files/pub4/liu_yanxi_2004_1/liu_yanxi_2004_1.pdf
• This is a paper by Stephen Hyde discussing some of the ideas that have been influencing Mathias' recent work on geometry and structure
  • http://people.physics.anu.edu.au/~sth110/10_1_ArchThRev.pdf
  • http://physics.anu.edu.au/appmaths/Profile.php?ID=70
• One of the things mentioned in the above paper is the Gavrog project - Unified Tiling Theory. The background presentations at the bottom of the page are very useful
  • http://gavrog.sourceforge.net/
• Current generative work found by Nik
  • http://roberthodgin.com/crystalline/

• Brian Sanderson's Pattern Recognition Algorithm (aka. the decision tree)
  • http://www.math.toronto.edu/drorbn/Gallery/Symmetry/Tilings/Sanderson/index.html
• The structure of the evening presentation follows an imaginary walk through the Alhambra - as the pattern groups progress, so will we.
• The group of 7 frieze pattern of linear tiling
  • http://en.wikipedia.org/wiki/Frieze_group
• The group of 17 wallpaper patterns of tilings of the plane
  • http://en.wikipedia.org/wiki/Wallpaper_group
• It is possible to 'pattern' a room acoustically using a standing sound wave, also called Room Modes. The Hoffmann Building is 19.7 x 15.3 x 15.5m
  • http://www.marktaw.com/recording/Acoustics/RoomModeStandingWaveCalcu.html
  • http://en.wikipedia.org/wiki/Room_modes
• Schumann Resonances are the Room Modes of planet earth's electromagnetic field
  • http://en.wikipedia.org/wiki/Schumann_resonances
  • A very good SciArt collaboration based on Schumann resonances
    • http://www.mitpressjournals.org/doi/abs/10.1162/096112104322750755
    • http://dl.dropbox.com/u/18987631/FTS%20Symmetry/13.1first.pdf
• A recent project to allow public domain access to Goldberg Variations. The Musescore edition has been announced for early 2012, so could be used by us, if we get in touch
  • http://www.opengoldbergvariations.org/
  • http://musescore.org/en/node/9622
  • http://www.kickstarter.com/projects/293573191/open-goldberg-variations-setting-bach-free
• More Goldberg Variations notations, recordings, midi
  • http://imslp.org/wiki/Goldberg-Variationen,_BWV_988_(Bach,_Johann_Sebastian)

• Marcus's research builds a lot on prime numbers and prime number tools like prime zeta functions and Fermat primes
  • http://en.wikipedia.org/wiki/Prime_zeta_function
  • http://en.wikipedia.org/wiki/Fermat_number
• Xenakis Nomos Alpha uses algebra and geomerty in its composition/construction
  • http://en.wikipedia.org/wiki/Nomos_Alpha
• A compass and straight edge construction of the 17-gon. Interestingly a 7-gon cannot be constructed using compass & se.
  • http://www.youtube.com/watch?gl=GB&v=ZMxcuiSxzQs

OK just FWDing info of the stuff im interested in and have that maybe good for snape!? its totally about symmetry!

here is the software i spoke off:

• http://www.chrismeighan.com/projects/scopeshapes

if we could make these .DXF files we could have text+

i have this device that can generate much better material than in this video:

• http://www.youtube.com/watch?v=Ypn9JJXSl7w&list=UUnG85Ity-dN4EjWxhqEBsSw&index=5&feature=plcp

i dont know of it will be in the UK by the time of the residency, but i have one of these due:

• http://www.youtube.com/watch?v=Q5pwtncsNW8
• http://www.youtube.com/watch?feature=endscreen&v=u33VMNZRaiQ