Math untangles the mystery of ponytails
U. WARWICK (US) — The Ponytail Shape Equation explains how hair behaves in a bundle, and may have applications in textiles and animation.University of Warwick and University of Cambridge physicists have quantified the curliness of human hair and developed a mathematical theory that explains the shape of a ponytail. The research, published in the journal Physical Review Letters, provides the first quantitative understanding of the distribution of hairs in a ponytail. To derive the Ponytail Shape Equation, the scientists took account of the stiffness of the hairs, the effects of gravity, and the presence of the random curliness or waviness that is ubiquitous in human hair...
Source: Futurity.org - Thursday, 16 February
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