Search results
Results from the WOW.Com Content Network
The Fraser spiral illusion is an optical illusion that was first described by the British psychologist Sir James Fraser (1863–1936) in 1908. [1] The illusion is also known as the false spiral, or by its original name, the twisted cord illusion. The overlapping black arc segments appear to form a spiral; however, the arcs are a series of ...
The Fraser spiral illusion, or false spiral, or the twisted cord illusion, was first described by the British psychologist Sir James Fraser in 1908. The overlapping black arc segments appear to form a spiral; however, the arcs are a series of concentric circles.
Ilusión de la espiral de Fraser; Matemáticas y arte; Usage on fi.wikipedia.org Optinen harha; Usage on fr.wikipedia.org Discussion:Illusion d'optique; Spirale de Fraser; Usage on fr.wikibooks.org Utilisateur:Jean-Jacques MILAN/Illusions d'optique; Usage on gl.wikipedia.org Matemáticas e arte; Ilusión da espiral de Fraser; Usage on hy ...
Paradox illusions (or impossible object illusions) are generated by objects that are paradoxical or impossible, such as the Penrose triangle or impossible staircase seen, for example, in M. C. Escher's Ascending and Descending and Waterfall. The triangle is an illusion dependent on a cognitive misunderstanding that adjacent edges must join.
Pages in category "Optical illusions" The following 154 pages are in this category, out of 154 total. ... Fraser spiral illusion; Fröhlich effect; G. Geometrical ...
These photos are breathtaking. By: Emily Drooby, Buzz60. It's not hot lava, it's an optical illusion! Every February, Horsetail Fall in Yosemite National Park lights up as if it were on fire.
Ambiguous images or reversible figures are visual forms that create ambiguity by exploiting graphical similarities and other properties of visual system interpretation between two or more distinct image forms.
The peripheral drift illusion (PDI) refers to a motion illusion generated by the presentation of a sawtooth luminance grating in the visual periphery. This illusion was first described by Faubert and Herbert (1999), although a similar effect called the "escalator illusion" was reported by Fraser and Wilcox (1979).