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  • drysdam

    Wrong link posted. This is the story, not the sidebar that tells how to do it.

  • Kahomono

    You linked to the print version of the article, which excludes the sidebar with the HOWTO…

  • SpeedDevilKings
  • seehontung

    an even easier experiment at home is to take two polarizers, perpendicular and all light is blocked. add a third polarizer at 45 degrees in between the two and viola, you can see thru it.