The Edge This is NPR's blog highlighting the best stories of the Sochi Winter Olympics.

A view of the Olympic Park on Feb. 6, a day before the opening ceremony of the 2014 Winter Olympics in Sochi, Russia. Yuri Kadobnov/AFP/Getty Images hide caption

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Yuri Kadobnov/AFP/Getty Images

Russia RUS-1 bobsled team, with Alexander Zubkov, Alexey Negodaylo, Dmitry Trunenkov, and Alexey Voevoda, jump onto the medal stand after winning gold on Sunday. On the last day of the Sochi Games, Russia had already secured the top spot in the overall medal count. Dita Alangkara/AP hide caption

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Dita Alangkara/AP

The team from Russia RUS-1, with Alexander Zubkov, Alexey Negodaylo, Dmitry Trunenkov, and Alexey Voevoda, celebrate after winning gold during the men's four-man bobsled competition final at the 2014 Winter Olympics, on Sunday. Natacha Pisarenko/AP hide caption

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Natacha Pisarenko/AP

Finland's Teemu Selanne celebrates after scoring his team's fourth goal during the men's ice hockey bronze-medal game U.S. vs. Finland at the Bolshoy Ice Dome during the Sochi Winter Olympics on Saturday. Alexander Nemenov /AFP/Getty Images hide caption

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Alexander Nemenov /AFP/Getty Images

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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Olivier Morin/AFP/Getty Images

Speedskaters from the U.S., Brian Hansen (from left), Jonathan Kuck and Joey Mantia, compete in the team pursuit speedskating race for seventh place at the Adler Arena Skating Center on Saturday. Patrick Semansky/AP hide caption

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Patrick Semansky/AP

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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Odd Andersen/AFP/Getty Images

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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Yuri Kadobnov/AFP/Getty Images

Canada's Jamie Benn (right) and Corey Perry celebrate a goal against America and goalie Jonathan Quick during the men's hockey semifinals in Sochi Friday. Alexander Nemenov/AFP/Getty Images hide caption

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Alexander Nemenov/AFP/Getty Images

Russia's Adelina Sotnikova (center) celebrates after receiving her gold medal in women's figure skating Thursday. South Korea's Yuna Kim (left) took silver, and Italy's Carolina Kostner won bronze. Antonin Thuillier/AFP/Getty Images hide caption

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Antonin Thuillier/AFP/Getty Images