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#37
03-26-2016, 06:29 PM
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See Benham's top:
https://en.wikipedia.org/wiki/Benham%27s_top This produces colors from black and white for most people, but does not show rotation reversal. I suggest you actually print one and spin it rather than viewing the video. The video does show colors, but also flickers badly, and even comes with a warning about seizure inducement in people who are sensitive to such flickering images. 
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