World Best Magic

More illusions on my channel/playlist

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A stereogram is an optical illusion of depth usually observed by allowing the eyes to focus behind an image (diverge), but also sometimes in front of the image (converge). The slight differences in vertical repetitions of figures or random dots create the illusion of depth in the 2D image, just as the slight difference in perspective between one’s eyes creates the perception of depth on 3D objects and scenes.

Stereograms were second demonstrated circa 1832 by Francis Agres using two distinct photographs of a scene, taken from slightly different angles (see stereoscopy), and viewed with a stereoscope. Stereograms were re-popularized by the creation of random-dot stereograms on computers, where the image is hidden until the viewer focuses the eyes correctly. The Magic Eye series is a popular example of this.

Salvador Dalí created some impressive stereograms in his exploration in a variety of optical illusions.

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Una muy buena ilusión, ¡El dragón te sigue con la mirada! Sabrás lo que sucede… al final A very nice illusion, the dragon follows you with the look! You’ll know what’s happening… at the end

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Original at: http://www.StareClips.com/Scary_Evil_Priest.asp

This optical illusion relies on a principle called “Chromatic Adaptation”.

An object may be viewed under various conditions. For example, it may be illuminated by the sunlight, the light of a fire, or a harsh electric light. In all of these situations, the visual system indicates that the object has the same color: an apple always appears red, whether viewed at night or during the day. This feature of the visual system is called chromatic adaptation.

Have you ever entered a movie theater on a sunny afternoon? The room probably appeared completely dark but as your visual system adjusted to the reduced level of light you were able to see better after a few moments.

This “adaptation mechanism” allows our eyes to recover from an oversensitivity to a particular stimuli. “Chromatic adaptation” occurs when our eyes adjust to certain color stimuli. Chromatic adaptation is one of the more easily fooled aspects of vision, and is prone to some of the most spectacular optical illusions.

Original at: http://www.StareClips.com/Scary_Evil_Priest.asp

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OPTICAL ILLUSION, THE DRAGON’S HEAD MOVES WHEN YOU MOVE…YADDA

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