最迷惑人的20幅图画 Optical Illusions - the top 20
发布: 2008-12-25 14:00 | 作者: webmaster | 来源: 本站原创 | 查看: 879次
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White lines or grey spots... 是白线条还是灰色的点呢
Look closely at the black squares. You'll begin to see grey spots appearing at the intersections of the white lines amongst the black squares. This illusion was discovered by Ludimar Hermann in the 1870s and is known as the Hermann Grid Illusion.
