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  2. Checker shadow illusion - Wikipedia

    en.wikipedia.org/wiki/Checker_shadow_illusion

    An illusion closely related to the checker shadow illusion, which also relies on using implied visual shadows to seemingly darken a brighter region to the same color as a well-lit dark region, involves two squares placed at an angle, with the darker square being lit and the lighter square at an angle which receives poor light.

  3. List of optical illusions - Wikipedia

    en.wikipedia.org/wiki/List_of_optical_illusions

    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. Hybrid image: A Hybrid image is an optical illusion developed at MIT in which an image can be interpreted in one of two different ways depending on viewing distance. Illusory contours

  4. Category:Optical illusions - Wikipedia

    en.wikipedia.org/wiki/Category:Optical_illusions

    An optical illusion is any illusion that deceives the human visual system into perceiving something that is not present or incorrectly perceiving what is present. Contents Top

  5. Talk:Checker shadow illusion - Wikipedia

    en.wikipedia.org/wiki/Talk:Checker_shadow_illusion

    The checker shadow illusion is an optical illusion published in 1995 by Edward Adelson, an American professor of vision science at the Massachusetts Institute of Technology. The phenomenon features an image of a checkerboard with light and dark squares, partly shadowed by another object, such as a cylinder as in this illustration.

  6. Theory of Colours - Wikipedia

    en.wikipedia.org/wiki/Theory_of_Colours

    Light spectrum, from Theory of Colours – Goethe observed that colour arises at the edges, and the spectrum occurs where these coloured edges overlap.. Theory of Colours (German: Zur Farbenlehre) is a book by Johann Wolfgang von Goethe about the poet's views on the nature of colours and how they are perceived by humans.

  7. The optical illusion hidden in the 'Mona Lisa' explained - AOL

    www.aol.com/news/2015-08-22-the-optical-illusion...

    Art historians say Leonardo da Vinci hid an optical illusion in the Mona Lisa's face: she doesn't always appear to be smiling. There's question as to whether it was intentional, but new research ...

  8. Kokichi Sugihara - Wikipedia

    en.wikipedia.org/wiki/Kokichi_Sugihara

    Kōkichi Sugihara (Japanese: 杉原厚吉, born June 29, 1948, in Gifu Prefecture) [1] [2] is a Japanese mathematician and artist [3] known for his three-dimensional optical illusions that appear to make marbles roll uphill, [4] [5] pull objects to the highest point of a building's roof, [6] and make circular pipes look rectangular. [7]

  9. Jonas Brothers Have Fans Freaking Out as They Surprise Them ...

    www.aol.com/jonas-brothers-fans-freaking...

    Fans of Camp Rock were in for quite the surprise after some unexpected guests showed up at a trivia night about the musical movie.. On Tuesday, Feb. 4, videos showing Jonas Brothers Joe, 35, Nick ...