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Here is a backyard explanation of the polarization of light. Using his porch railing, the video narrator demonstrates that if the grating is lined up with the direction of light waves, represented by a hula hoop, the waves are allowed to pass. Using polarized sunglasses, he shows how holding them against the horizontal waves reduces glare, while turning them vertically allows shiny light to get through. This brief clip could serve as an illuminating and compact video to embed in your presentation about the characteristics and behavior of light.
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- This video is hosted on YouTube