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U ovom govoru sa TED univerziteta 2009, Metju Čajlds, sportski penjač veteran, podelio je devet važnih pravila u sportskom penjanju stenama. Ovi zgodni saveti funkcionišu i u stvarnom životu, na nivou mora.
Matthew Childs is an advertising lead at Razorfish. He is a lifelong rock climber and climbing guide. Full bio »
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Reviewed by Mateja Nenadovic
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