10 mysteries of the Olympics

POSTED: 09:53 AM PDT Aug 09, 2012    UPDATED: 11:42 AM PDT Aug 09, 2012 

Ever wonder why Olympians bite their medals? Find the answer to this and other mysteries of the Olympic games.

Olympic Mysteries - Swim Caps
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Why do swimmers wear two caps? The double cap ensures a swimmer's goggles stay on. It also reduces drag, the resistance the body encounters as it moves through the water.

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