动感棒球

视频简介

NOVA: Mysteries of Sleep Like virtually every other animal, humans need sleep to survive. But why? What do we gain from spending nearly a third of our lives in such a defenseless state? And what's at stake if we sleep poorly? The functions of sleep have long been something of a mystery. But now scientists are peering deep into the brain to see what happens while we snooze. One ...。主持人Graham Bell和Ed Leigh穿越天寒地冻的加拿大不列颠哥伦比亚省，前往2010年冬奥会的起源地。一路上，他们拜访了与世隔绝的偏远居民，了解他们是如何在冰天雪地里生活的。他们走访了当地的矿工、伐木工和猎手。最后他们徒步翻越海岸山脉来到冬奥场馆Whistler。(文： life_is_good@YDY) Graham Bell and Ed Leigh journey southwards through the frozen province of British Columbia, Canada, towards the home of the 2010 Winter Olympic Games. En route, they travel through remote communities cut off from civili...。