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The lilac chaser illusion combines three simple, well-known effects, as described, for example, by Bertamini. [6]The phi phenomenon is the optical illusion of perceiving continuous motion between separate objects viewed rapidly in succession.
A rainbow is an optical phenomenon caused by refraction, ... Round bottom flask rainbow demonstration experiment - Johnson 1882.
Here, it is mistakenly labelled as an artificial rainbow in Gilberts book. [ 10 ] This approach employs the fact that in some cases the average geometry of refraction through an ice crystal may be imitated / mimicked via the refraction through another geometrical object.
The misleading term "fire rainbow" is sometimes used to describe this phenomenon, although it is neither a rainbow, nor related in any way to fire. The term, apparently coined in 2006, [ 3 ] may originate in the occasional appearance of the arc as "flames" in the sky, when it occurs in fragmentary cirrus clouds.
Glory around the shadow of a plane. The position of the glory's centre shows that the observer was in front of the wings. A glory is an optical phenomenon, resembling an iconic saint's halo around the shadow of the observer's head, caused by sunlight or (more rarely) moonlight interacting with the tiny water droplets that comprise mist or clouds.
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ROYGBIV is an acronym for the sequence of hues commonly described as making up a rainbow: red, orange, yellow, green, blue, indigo, and violet. When making an artificial rainbow, glass prism is used, but the colors of "ROY-G-BIV" are inverted to VIB-G-YOR".
Nyan Cat. Nyan Cat is a YouTube video uploaded in April 2011, which became an Internet meme.The video merged a Japanese pop song with an animated cartoon cat with a Pop-Tart for a torso flying through space and leaving a rainbow trail behind.