Benham's Wheel

An optical top marked in black with the pattern shown above. When the wheel is spun (especially slowly), the black broken lines appear as green, blue, and red colored bands!

References

Cohen, J. and Gordon, D. A. ``The Prevost-Fechner-Benham Subjective Colors.'' Psycholog. Bull. 46, 97-136, 1949.

Festinger, L.; Allyn, M. R.; and White, C. W. ``The Perception of Color with Achromatic Stimulation.'' Vision Res. 11, 591-612, 1971.

Fineman, M. The Nature of Visual Illusion. New York: Dover, pp. 148-151, 1996.

Trolland, T. L. ``The Enigma of Color Vision.'' Amer. J. Physiology 2, 23-48, 1921.

• Cayley-Klein-Hilbert Metric
• Cayley-Klein Parameters
• Cayley Number
• Cayley's Group Theorem
• Cayley's Hypergeometric Function Theorem
• Cayley's Ruled Surface
• Cayley's Sextic
• Cayley's Sextic Evolute
• Cayley Tree
• C-Curve
• C-Determinant
• Cech Cohomology
• Ceiling Function
• Cell
• Cellular Automaton
• Cellular Space
• Center
• Centered Cube Number
• Centered Hexagonal Number
• Centered Pentagonal Number
• Centered Polygonal Number
• Centered Square Number
• Centered Triangular Number
• Center Function
• Center (Group)