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Payson High School physics teacher Andrew Fiala shows students Tuesday how to safely walk across a slackline. Fiala says slacklining helps demonstrate concepts of torque and rotational motion as students attempt to maintain a consistent center of gravity. Unlike a tightrope, a slackline is less taut, making it more dynamic and bouncing. Each student made two attempts across the nylon webbing; some picked it up quickly while others needed a hand for support.

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