Scientists Calculated the "Rapunzel Number" and Cracked the Secret of the Ponytail
Huzzah! Another scientific mystery... ...his dangerous number can predict the shape of any ponytail : Cambridge Professor Raymond Gol... ...[...] "That determines whether the ponytail looks like a fan or whether it arcs o... ...break the stronghold of the hair stylis...
https://www.neatorama.com/2012/02/12/scientists-calculated-the-rapunzel-number-and-cracked-the-secret-of-the-ponytail/
