Mathematical formula explains the length of your eye lashes

February 25, 2015 7:42 PM

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According to researchers at Georgia Tech, the ideal eyelash length is one-third the width of the eye. And it's not just the human genome that's adopted this perfect formula. Researchers found that 21 other species, in addition to Homo sapiens, utilize the ratio -- including sheep, giraffes and hedgehogs.

In addition to analyzing animal hides from the American Museum of Natural History in New York, scientists constructed a model eye and put it inside a wind tunnel to better understand the reasoning for the dimensions. Researchers varied the eyelash length to see what effects it had on wind turbulence...

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