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O3-21: BENHAM TOP 7 years 10 months ago #1165

  • zzfixk21
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ID Code: O3-21
Purpose: Demonstrate perception of color due to periodic excitation of the eye.
Description: A disc contains half black and half white fields with various sets of azimuthal black lines on the white field. Rotating the disc a few times per second creates circles which appear to have various mild coloration, from greens to browns to blues. Rotating in the opposite direction changes the colors.
Availability: Available

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