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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 ...
The spinning dancer is a kinetic, bistable optical illusion resembling a rotating female dancer. The Spinning Dancer, also known as the Silhouette Illusion, is a kinetic, bistable, animated optical illusion originally distributed as a GIF animation showing a silhouette of a pirouetting female dancer.
Spinning_Dancer_Optical_Illusion_(2040_frames).ogv (Ogg Theora video file, length 1 min 1 s, 300 × 400 pixels, 673 kbps, file size: 4.91 MB) This is a file from the Wikimedia Commons . Information from its description page there is shown below.
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 ...
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.
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 ...
1 Spinning Dancer. Toggle Spinning Dancer subsection. 1.1 For those having difficulty seeing the illusion: 1.2 Before Closing Nomination. Toggle the table of contents.
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.