The Science Behind Hard Hits And Touchdowns

Fans love to watch the drama on the football field. But scientists are watching the action in a different way. Guest host Celeste Headlee speaks with material scientist Ainissa Ramierez and journalist Allen St. John about their new book "Newton's Football: The Science Behind America's Game."

Source: http://www.npr.org/templates/story/story.php?storyId=246733371&ft=1&f=1007

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