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50.5 MB (50.0 MB compressed)
4850 x 3638 pixels
41.1 x 30.7 cm ⏐ 16.2 x 12.1 in (300dpi)
IAN GOWLAND / SCIENCE PHOTO LIBRARY IAN GOWLAND / SCIENCE PHOTO LIBRARY
Helianthus sunflower, close-up of central disc. The inward spiralling pattern of the disc florets are an example of a pattern based on the Fibonacci number series. This is a mathematical pattern that is common in nature and is named after the Italian mathematician Leonardo Fibonacci.
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