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The original phenomena of this type were acheropites: images of major Christian icons such as Jesus and the Virgin Mary that were believed to have been created by supernatural means. The word acheropite comes from the Greek ἀχειροποίητος , meaning "not created by human hands", and the term was first applied to the Turin Shroud and ...
An autostereogram is a single-image stereogram (SIS), designed to create the visual illusion of a three-dimensional (3D) scene from a two-dimensional image in the human brain. An ASCII stereogram is an image that is formed using characters on a keyboard. Magic Eye is an autostereogram book series. Barberpole illusion
The horizontal bar appears to progress from light grey to dark grey, but is in fact just one color. Perceptual constancies are sources of illusions. Color constancy and brightness constancy are responsible for the fact that a familiar object will appear the same color regardless of the amount of light or color of light reflecting from it. An ...
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Impressions of several natural phenomena and the principles of some optical toys have been attributed to persistence of vision. In 1768, Patrick D'Arcy recognised the effect in "the luminous ring that we see by turning a torch quickly, the fire wheels in the fireworks, the flattened spindle shape we see in a vibrating cord, the continuous circle we see in a cogwheel that turns with speed". [8]
Furthermore, moving one's eyes away from the image after a period of time may result in a brief, strong afterimage of a circle of green spots. Troxler's fading , also called Troxler fading or the Troxler effect , is an optical illusion affecting visual perception .
Despite the hype, a new study that suggests blue light-filtering glasses don't really do much of anything. Blue light glasses have 'virtually no effect' on eye strain caused by staring at a screen ...
Jesus [d] (c. 6 to 4 BC – AD 30 or 33), also referred to as Jesus Christ, [e] Jesus of Nazareth, and many other names and titles, was a 1st-century Jewish preacher and religious leader. [10] He is the central figure of Christianity , the world's largest religion .