Tech Directions - January 2009 - (Page 16) on my computer. After making about 50 or so photographs using this setup, I downloaded the images to my computer and selected the ones that seemed to hold the most promise for application to an article about vibrating strings. I then adjusted the cropping, levels, and color balance, uploaded the photos to my web site, and contacted the editor. Shortly thereafter Photos 7 and 8—Random vibrations of the string Photo 6—Photo made while I received a message cause a mixed-up but more interesting image. the string was behaving in a that the editor wanted controlled, regular manner. to include one of my photos with the string theory article. One of my vistring to travel a distance equal to its If the string made more than one brating string photographs ultimateown width. When moving towards or turn, subsequent passes would suly made it to the pages of Discover away, the string appeared to remain perimpose on previous passes in an magazine and also onto the cover of on the same spot on the sensor for a unpredictable cacophony of sequenmy institute’s annual report. longer time. This created variations tial interactions. These manifested This turned out to be a challengin exposure giving rise to brightness themselves visually once the images ing and enjoyable exercise for a phovariations. In effect the moving string were recorded and were examined on tographic technology educator! had become its own shutter! the camera’s LCD display and, later, 16 techdirections ◆ JANUARY 2009 http://www.7corners.com http://www.studica.com/netop http://www.studica.com/netop http://www.7corners.com
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