U.S. weightlifter Sarah Robles will rely on an athletic mix of strength, speed and timing to help create explosive power when she competes at the 2012 Summer Olympics. Robotics engineer Brian Zenowich compares Robles’ movements to those made by the WAM Arm, one of the world’s most advanced robotic arms. ʺScience of the Summer Olympicsʺ is a 10-part video series produced in partnership with the National Science Foundation. (2011 Telly Award winner)