95.8 MB (447.6 KB compressed)
7087 x 4724 pixels
59.9 x 39.9 cm ⏐ 23.6 x 15.7 in (300dpi)
SCIENCE PHOTO LIBRARY SCIENCE PHOTO LIBRARY
Square illusion - subdivision leads to apparent enlargement. There are three squares of identical area. However, the middle square appears to be wider than it is tall and the right hand square appears to be taller than it is wide. This demonstrates that subdividing an area causes it to appear larger in the direction of the sudivision.
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