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  2. Wagon-wheel effect - Wikipedia

    en.wikipedia.org/wiki/Wagon-wheel_effect

    The wagon-wheel effect (alternatively called stagecoach-wheel effect) is an optical illusion in which a spoked wheel appears to rotate differently from its true rotation. The wheel can appear to rotate more slowly than the true rotation, it can appear stationary, or it can appear to rotate in the opposite direction from the true rotation ...

  3. Newton disc - Wikipedia

    en.wikipedia.org/wiki/Newton_disc

    Colour distribution of a Newton disk. The Newton disk, also known as the disappearing color disk, is a well-known physics experiment with a rotating disk with segments in different colors (usually Newton's primary colors: red, orange, yellow, green, blue, indigo, and violet, commonly known by the abbreviation ROYGBIV) appearing as white (or off-white or grey) when it's spun rapidly about its axis.

  4. Thaumatrope - Wikipedia

    en.wikipedia.org/wiki/Thaumatrope

    A spinning rectangular thaumatrope with the alternating letters of the name "Victoria" on each side, showed the full word with the letters at two different distances from the observer's eye. If the two strings of the thaumatrope are attached to the same side of the card the thickness of the card accounts for a small difference in the distances ...

  5. List of optical illusions - Wikipedia

    en.wikipedia.org/wiki/List_of_optical_illusions

    The Moon illusion is an optical illusion in which the Moon appears larger near the horizon than it does while higher up in the sky. Motion aftereffect: Motion illusion: Müller-Lyer illusion: The Müller-Lyer illusion is an optical illusion consisting of a stylized arrow. Multistable perception: Necker cube

  6. Template:Optical illusions/doc - Wikipedia

    en.wikipedia.org/wiki/Template:Optical_illusions/doc

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  7. Zoetrope - Wikipedia

    en.wikipedia.org/wiki/Zoetrope

    A zoetrope is a pre-film animation device that produces the illusion of motion, by displaying a sequence of drawings or photographs showing progressive phases of that motion. A zoetrope is a cylindrical variant of the phénakisticope , an apparatus suggested after the stroboscopic discs were introduced in 1833.

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  9. Geometrical-optical illusions - Wikipedia

    en.wikipedia.org/wiki/Geometrical-optical_illusions

    Ponzo illusion in a purely schematic form and, below, with perspective clues. However, almost all geometrical optical illusions have components that are at present not amenable to physiological explanations. [4] The subject, therefore, is a fertile field for propositions based in the disciplines of perception and cognition. [5]