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Triple Eye Light Stick: Exhibit Demo

Turn a rapidly flickering light into a complete image by shaking your head.

November 20, 2015 • 03:08

A line of flickering light is just a line, right? Maybe, or maybe not—try shaking your head, and see what appears. Persistence of vision makes a rapidly flickering line of light appear as a complete image on the back of your eye. This "loophole" in your vision system has been used by television programmers for years. See what you can see!


Keywords

persistence of vision

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