American Bode Miller inspired a question about terminal velocity, resistance, and friction with his skiing in Sochi. It's one of many technical questions that came up during the Winter Olympics. Olivier Morin/AFP/Getty Images hide caption

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Germany's Evi Sachenbacher-Stehle has left her country's Olympic contingent — and Sochi — after testing positive for a banned stimulant. She's seen here in the biathlon earlier this week; Sachenbacher-Stehle finished fourth. Odd Andersen/AFP/Getty Images hide caption

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From left to right, America's J.R. Celski, Jordan Malone, Christopher Creveling and Eduardo Alvarez celebrate taking silver in the men's short track 5,000-meter relay at the Iceberg Skating Palace in the Sochi Winter Olympics Friday. Yuri Kadobnov/AFP/Getty Images hide caption

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U.S. silver medalists Elana Meyers, left, and Lauryn Williams pose after their final run in the women's bobsled Wednesday. Williams becomes only the second American in history to win medals in both the Summer and Winter Olympics. Alex Livesey/Getty Images hide caption

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As of late Tuesday, with the final stretch of the Sochi Winter Games ahead, Germany had collected more gold medals than any other nation. Here, German gold medalists Severin Freund, Andreas Wellinger, Andreas Wank and Marinus Kraus celebrate their win in Team Ski Jumping. Paul Gilham/Getty Images hide caption

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