In early 2014, the American free-solo rock climber Alex Honnold climbed 2,500 feet of limestone without ropes. The demanding route called El Sendero Luminoso in El Potrero Chico, Mexico required…
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Walking around in the real world, as opposed to the uncluttered hallways of your school, requires flexible and adaptive fine-tuning of the basic alternating stepping pattern of our two legs.…
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