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Old Aug 2, 2007, 3:57 PM   #11
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calr wrote:
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...window screen, one on top of the other creating a Moire pattern.
Very good, Cal, almost spot on. Here's a version of the full photo.

If you paste the image into a viewer with which you can zoom in and out conveniently, you get exciting patterns as two interlocking out-of-phase grids interact with a third one, the pattern of dots on your monitor.

Clue No 2 was going to refer to my shot in the 'Old Buildings' challenge recently, upwards through the anti-bird screen on the Mousa Broch, which shows the same effect on resizing, but with only a single mesh interacting with the monitor.

The two sieves are in daily use, often with the bowl, andstored together. The patternsare clearly visible to the naked eye, but more dramatic when photographed and resized. I wasn't sure how it would look on other monitorsand screen resolutions.
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Old Aug 3, 2007, 11:14 AM   #12
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Very creative, Alan.Great job!
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Old Aug 4, 2007, 11:10 AM   #13
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Wow..very creative. I definatly needed to see the second image.
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Old Aug 4, 2007, 4:04 PM   #14
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vsch1 wrote:
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Wow..very creative. I definatly needed to see the second image.
Thanks very much. Moire patterns keep popping up everywhere if you look for them. We live in a world with many regular patterns, but they're often a bit out of phase, so they get lumpy. Some philosophy in there, perhaps?
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