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240 Head Hits: The Average a 10-Year Old Can Get in a Football Season

Coinciding with Super Bowl week, the journal Neurology just came out with a study by Boston University researchers that looked at retired professional football players, comparing the cognitive functioning of players who had started tackle football before age 12 with others who hadn’t...

STAFFJanuary 30, 2015 — Gary Stix

X-Rays at War, 1915

Reported in Scientific American, This Week in World War I: January 30, 1915 X-rays were used for medical operations within a couple of months after they were discovered by Wilhelm Roentgen in late 1895...

STAFFJanuary 30, 2015 — Dan Schlenoff

A Recipe for Photographing Angry Fire Ants

This 2007 photograph of a fire ant brandishing her stinger is among the most heavily circulated images from my collection. Since several people have asked how I managed to coax the animal into such a dramatic pose, I bring you the following recipe...

January 30, 2015 — Alex Wild

Two-Billion-Year-Old Fossils Reveal Strange and Puzzling Forms

To a human, two billion years is an unfathomable interval. But that, a team of European, Gabonese, and American scientists now say, is how long ago a recently discovered hoard of fossils suggests Earth’s first big life evolved — large enough to see with the naked eye, and in a spectrum of forms that tease [...]..

January 29, 2015 — Jennifer Frazer

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