If you are watching the Olympic games, you might wonder how athletes gained so much over the last hundred years or so. Sure, training has advanced. Sure, more people are participating in sports. But one factor is the improvement in the equipment used. This video looks at the tracks where the footraces are held. When I ran track that one season in the early '70s, we ran on a gravel track owned by the local college. Forty years later, my kids had a real asphalt track at their school. World-class tracks advanced even more. (via Neatorama)
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