What Color Do You See? #illusion. Source- PMID 20413448 Benham’s top is a fascinating optical illusion that produces a phenomenon known as pattern-induced flicker colors, or Fechner colors. When a disc patterned with specific black and white arcs is spun rapidly, the observer perceives rings of pale colors, often reds, greens, and blues, even though the physical object contains no colored pigment whatsoever. This ghostly display is not a trick of light in the room, but rather a direct result of

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