[Jewelry making - Article 00393] - Re: [Orchid] First art show and new web site

[Daniel Kamman]

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Delpfine

    The dark squares of the images against the white background on your
    website, particularly on

    www.delpfinewelchdesigns.com/gallery/earrings.php 

    produce the optical illusion of gray squares in the areas formed by 4
    corners of the dark squares. These gray squares appear and disappear
    as the eyes focus on different parts of the page -- an effect that I,
    at least, find disconcerting. 

    The effect is known as a Hermann Grid illusion. There is information
    on this at http://www.yorku.ca/eye/hermann.htm 

Dan
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