[unable to retrieve full-text content]When running double the distance, it doesn?t merely take double the time ? a study of world record times over various distances shows an increase by a factor of 2.15.
Source: http://www.nytimes.com/2013/03/19/science/how-fast-we-slow-down-running-longer-distances.html?partner=rss&emc=rss
Jordyn Wieber michael phelps Kerri Strug Ledecky Nadia Comaneci Rebecca Soni Snoop Lion
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