A few months after leading all National League shortstops with 25 home runs as a rookie in 2017, Cardinals infielder Paul DeJong put on a crisp white lab coat at a Long Island university and, to scratch his science itch, ran a few experiments on some official major-league baseballs. With the help of a friend and scientist, DeJong’s tests took a quick, introductory look at how temperature altered the bounce of the ball.
Post-Dispatch
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