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Summary
DescriptionFibonacci spin.jpg
English: A tennis ball soaked in water and spun, creating approximately equidistant spirals of water droplets. (For true equidistance, the rate of rotation would have to be constant and we'd have to ignore air resistance.)
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https://creativecommons.org/licenses/by/4.0CC BY 4.0 Creative Commons Attribution 4.0 truetrue