Have you ever been floating in a swimming pool, all comfy and warm, thinking, "Man, it'd be c ...

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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 ...

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This dark energy doesn't behave like any other substance we know at all and acts more like antigravi ...

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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。Whe ...

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We dream to keep our brains working.我们为了保证大脑运转而做梦。The continual activation theory prop ...

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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 ...

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The important thing about units is that once we've made a new unit, we can treat it just like we did ...

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Which is correct: "A dozen eggs is?" Or "A dozen eggs are?"哪个是正确的 ...

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In the third millenium BCE, Mesopotamian kings recorded and interpreted their dreams on wax tablets. ...

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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 h ...

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We live in an interconnected, an increasingly globalized world.我们生活在互相联系越来越频繁的世界里 ...

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We like to think of romantic feelings as spontaneous and indescribable things that come from the hea ...

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Perhaps sadness helped generate the unity we needed to survive,也许，悲伤可以产生我们生存所需的集体 ...

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Sadness is part of the human experience,悲伤是人类必经的感受，but for centuries there has been vast ...

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Like the Greek system, changing the balance of these chemicals can deeply alter how we respond to ev ...

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OK, one more thing, if I can even get more bizarre.另外还有一件事是更难以想象的Since virtually all t ...

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So if you popped open the blueberry and were searching for the nucleus如果你在蓝莓的内部搜索原子核， ...

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You probably already know everything is made up of little tiny things called atoms你也许已经知道所有 ...

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So, if you know someone struggling with depression, encourage them, gently, to seek out some of thes ...

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First of all, there are changes that could be seen with the naked eye and X-ray vision.首先有些改变 ...

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