文章列表

• 1.TED演讲:地球的年龄有多大(1)
• How old is the Earth? 地球的年龄有多大？ Well, by counting the number of isotopes in a sample of rock that's undergone radioactive decay, 通过对岩石样...
• 2.TED演讲:在外太空自由落体
• Have you ever been floating in a swimming pool, all comfy and warm, 你是否曾经浮在游泳池里，感觉非常惬意，暖洋洋得， thinking, Man, it'd be cool to be...
• 3.TED演讲:宇宙的灭亡(2)
• This dark energy doesn't behave like any other substance we know at all and acts more like antigravity force. 这种暗能量的性质与我们所熟知的其他物质完...
• 4.TED演讲:宇宙的灭亡(1)
• Looking up at the night sky, we are amazed by how it seems to go on forever. 仰望夜空，我们为它的永无止境而感到惊讶。 But what will the sky look like ...
• 5.TED演讲:我们为什么做梦(2)
• We dream to keep our brains working. 我们为了保证大脑运转而做梦。 The continual activation theory proposes that 持续激活理论提出， your dreams result ...
• 6.TED演讲:我们为什么做梦(1)
• In the third millenium BCE, Mesopotamian kings recorded and interpreted their dreams on wax tablets. 公元前三千年，美索不达米亚国王在蜡质石板上记录并...
• 7.TED演讲:记忆是怎么形成和消失的(2)
• Another leading cause of memory problems is chronic stress. 另一个引发记忆力问题的原因是长期压力。 When we're constantly overloaded with work and pers...
• 8.TED演讲:记忆是怎么形成和消失的(1)
• Think back to a really vivid memory. 回想一个生动的回忆。 Got it? Okay, now try to remember what you had for lunch three weeks ago. 想起来了吗？好的，...
• 9.TED演讲:一就是一吗(2)
• The important thing about units is that once we've made a new unit, we can treat it just like we did the old unit. 重要的是，一旦我们创造了新的单位，...
• 10.TED演讲:一就是一吗(1)
• Which is correct: A dozen eggs is? Or A dozen eggs are? 哪个是正确的：a dozen eggs 'is' 还是 a dozen eggs 'are'？ I remember being in elementary schoo...