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'Rapunzel number' and the secret math of ponytails Add to ...

A trio of U.K.-based scientists has developed a mathematical equation explaining the shape of human ponytails. Their discovery, which encompasses everything from hair stiffness to curls, could help textile manufacturers, animators, and personal care companies improve their products

A trio of U.K.-based scientists has developed a mathematical equation explaining the shape of human ponytails. Their discovery, which encompasses everything from hair stiffness to curls, could help textile manufacturers, animators, and personal care companies improve their products

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