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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. Spinning dancer - Wikipedia

    en.wikipedia.org/wiki/Spinning_Dancer

    The illusion derives from the lack of visual cues for depth. For instance, as the dancer's arms move from viewer's left to right, it is possible to view her arms passing between her body and the viewer (that is, in the foreground of the picture, in which case she would be circling counterclockwise on her right foot) and it is also possible to view her arms as passing behind the dancer's body ...

  5. Kinetic depth effect - Wikipedia

    en.wikipedia.org/wiki/Kinetic_depth_effect

    The Spinning Dancer is a kinetic, bistable optical illusion resembling a pirouetting female dancer. The dancer can be seen to be spinning alternately one direction, or the other. In visual perception, the kinetic depth effect refers to the phenomenon whereby the three-dimensional structural form of an object can be perceived when the object is ...

  6. List of optical illusions - Wikipedia

    en.wikipedia.org/wiki/List_of_optical_illusions

    The Hering illusion (1861): When two straight and parallel lines are presented in front of radial background (like the spokes of a bicycle), the lines appear as if they were bowed outwards. Hollow-Face illusion: The Hollow-Face illusion is an optical illusion in which the perception of a concave mask of a face appears as a normal convex face.

  7. Optical illusion of two dogs 'sharing a mouth' has people ...

    www.aol.com/optical-illusion-two-dogs-sharing...

    The strange picture of the two canines made for a bizarre optical illusion that looked more like a single beast than a dog. Some were completely stumped by what they saw, while others threw out ...

  8. Motion aftereffect - Wikipedia

    en.wikipedia.org/wiki/Motion_aftereffect

    Example movie which produces distortion illusion after one watches it and looks away. The motion aftereffect (MAE) is a visual illusion experienced after viewing a moving visual stimulus for a time (tens of milliseconds to minutes) with stationary eyes, and then fixating a stationary stimulus. The stationary stimulus appears to move in the ...

  9. FACT CHECK: Are ‘Strange Experiments’ Causing ... - AOL

    www.aol.com/news/fact-check-strange-experiments...

    A post on X claims that “strange experiments” are causing rings to be seen around the sun in a photograph of the Arizona sky. Verdict: False This is called a “solar halo.” This is a ...