posted on Oct, 18 2010 @ 05:05 PM
Some people see sky light polarization as a grid, others as a bowtie. Most people can't see it at all, or don't notice it. See also Haidinger's
Brush.
"I can see it particularly clearly in the twilight when I stare at the zenith; the whole sky seems to be covered by a network, as it were, and
everywhere I look I see this characteristic pattern. It is very pleasing to be able to determine the direction of polarization without an instrument
in this way, an even obtain an estimate of its degree" Minnaert, Light and Color in the Outdoors
There's also a phenomenon wherein you can occasionally spot your eyes/visual cortex "refreshing" their background images. I see it when I tend to
look from a dark area to a light one, and it looks like a grid of lines flashing over the image for a moment. I take it it's sort of like pixellation
in MPG files. Anyway, there used to be a certain doorway at work that would do it to me every time I walked through, and I taught other people to see
it there. Sadly, it's like a necker cube, you can't unsee it very readily, sort of like keyhole compensation failure, so once you've learned to see
it, it's really irritating.