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Old 11-19-2012, 06:22 PM   #9
jonnythan
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Quote:
Originally Posted by scotus View Post
in that case, maybe my polarized lenses are fake!
It's possible. It's easy to test though.

Hold the glasses out in front of you, in front of your computer screen. Rotate the lenses. The screen should get very dark at two points 180 degrees apart through the rotation.

That's the same effect you get outside. As the lenses rotate against the polarization of the glare, the brightness of the glare goes up and down. At the point where the lens polarization is the same as that of the glare, the polarization does nothing. At a point 90 degrees from that point, the polarization blocks the glare. The glare intensity varies as you rotate between those points.
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