共有 513 条搜索结果
    时长:18.9分钟 · 播放:2115次
    来源:互联网 · 2017-09-28
    过去你对于慈善的认识,有可能是完全错误的。
    时长:25.0分钟 · 播放:2381次
    来源:互联网 · 2017-09-27
    盖茨夫妇告诉你为什么做慈善是一件非常开心的事情。
    时长:6.1分钟 · 播放:1825次
    来源:互联网 · 2017-09-27
    Frustrated by this waste of resources and landfill space, Ashton Cofer and his science fair teammates developed a heating treatment to break down used Styrofoam into something useful.
    时长:8.1分钟 · 播放:4989次
    来源:互联网 · 2017-09-27
    听听这位年轻的科学家对水源净化有什么想法
    时长:6.0分钟 · 播放:1339次
    来源:互联网 · 2017-09-27
    Combining projection mapping and a pop-up book, Marco Tempest tells the visually arresting story of Nikola Tesla -- called "the greatest geek who ever lived" -- from his triumphant invention of alternating current to his penniless last days.
    时长:9.1分钟 · 播放:3086次
    来源:互联网 · 2017-09-27
    How do we decide who we are? Hetain Patel's surprising performance plays with identity, language and accent -- and challenges you to think deeper than surface appearances. A delightful meditation on self, with performer Yuyu Rau, and inspired by Bruce Lee.
    时长:5.0分钟 · 播放:1933次
    来源:互联网 · 2017-10-18
    面对灾难时,你该怎么做?
    时长:9.3分钟 · 播放:1568次
    来源:互联网 · 2017-10-18
    When a freak tornado hit her Massachusetts hometown, Caitria O’Neill wasn't an expert in disaster relief recovery. 
    时长:4.0分钟 · 播放:1411次
    来源:互联网 · 2017-09-27
    In today's world, balancing school, work, kids and more, most of us can only hope for the recommended eight hours of sleep. Examining the science behind our body's internal clock, Jessa Gamble reveals the surprising and substantial program of rest we should be observing.
    时长:4.5分钟 · 播放:1788次
    来源:互联网 · 2017-09-27
    Melissa Marshall brings a message to all scientists (from non-scientists): We're fascinated by what you're doing. So tell us about it -- in a way we can understand. In just 4 minutes, she shares powerful tips on presenting complex scientific ideas to a general audience.
    时长:7.2分钟 · 播放:1843次
    来源:互联网 · 2017-10-18
    Building on the cellulose structure that gives an apple its shape, he "grows" lifelike human ears, pioneering a process that might someday be used to repair body parts safely and cheaply. 
    时长:6.0分钟 · 播放:1326次
    来源:互联网 · 2017-09-27
    通过电话来判断是否患有帕金森?听起来非常不可思议
    时长:4.4分钟 · 播放:2374次
    来源:互联网 · 2017-09-27
    我是怎么爱上宇宙的
    时长:15.2分钟 · 播放:4066次
    来源:互联网 · 2017-09-27
    充满野性的大自然,才是真正的大自然。
    时长:7.4分钟 · 播放:4111次
    来源:互联网 · 2017-09-27
    大自然的世界,有很多奥妙等待你去发现。