- Thisillusionfirstdiscoveredin1870ischaracterizedbythe"ghostlike"intermittentappearanceoflightlycoloredgraydotsthatseemtoconnectthewhitesurfacesandtheblackbackground.Heledaghostlikeexistencebetweenthetiny,darkshop,andaneventinierbackkitchenwherehepr...
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