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Web predictions

 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.

Diffraction limit

Stumbled upon a video clip demonstrating 'structured illumunation' microscopy which gives a 2x increase in optical resolving power past the usual diffraction limited 200nm feature size dictated by 1/2 wavelength of the smallest visible light ~400nm. It uses compuational image processing of moire patterns created by illuminating the sample with 2 or more gratings at various offsets to each other.

Notes on photography 6/28/08

6/28/08 Bridge Thin photography

Doug Heiken and Mark Dow spent a half day taking video and stills of the Bridge Thin parcel (http://www.wikimapia.org/#lat=44.1654519&lon=-122.3126686&z=17&l=0&m=h&v=2). Warm sunny day.

10:10 Left Mark's house.

10:40 Diversion point for the Walterville Canal (http://www.wikimapia.org/#lat=44.0766565&lon=-122.7646637&z=17&l=0&m=h&v=2). (photo 18 mm, Canon SLR)

11:12 Blue River Resevoir turnoff (http://www.wikimapia.org/#lat=44.1650594&lon=-122.2898698&z=17&l=0&m=h&v=2).

2x2 symmetric L-systems

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: