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NOVA - Marathon Challenge

Marathon Challenge Marathon Challenge
Explore what it takes for novice runners to make it through a classic test of endurance.
http://video.pbs.org/widget/partnerplayer/1050815967/?player=WGBY-PBS&w=512&h=288&chapterbar=true&autoplay=false Explore what it takes for novice runners to make it through a classic test of endurance. /episodes/get/2376 /episode/2376 NOVA: Marathon Challenge /episode-player/2376
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