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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，结果是一无所获。 You know what? It would be invisible. It's too small to see! 知道为什么吗？因为我们看不到它！它

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You, today, buy gasoline miles. And we created electric miles. 现在大家买的是汽油里程。我们就创造电子里程。 And the price of electric miles ends up being a very interesting number. 电子里程价钱加起来是个有趣的数字。

TED演讲:一项关于电动车的大胆计划(1)

So how would you run a whole country without oil? 怎么让一个国家在没有用石油的情况下运转？ That's the question that sort of hit me in the middle of a Davos afternoon about four years ago. 四年以前在Davos的一个下午，这个

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heart and soul 一心一意 ebb and flow 人世盛衰 cloak and dagger 秘密的行动 law and order 秩序 move heaven and earth 不遗余力 part and parcel 不可或缺 pomp and ceremony 盛典 rain or shine 不论如何 rank and file 大众 (figh

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本期内容： A rise in global nationalism paired with a worldwide drop in oil prices has brought about significant shifts in the global economy over the past year. As a result of these developments, certain destinations that have long been some of

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PV solar technology is more complex. When sunlight hits a PV cell, electrons in the cell are knocked out of their orbits. Electric fields channel the electrons in a current used to generate electricity。 Unlike thermal solar panels, PV technology is

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It was while puzzling over this problem that Bohr was struck by a solution and dashed off his famous paper. Called On the Constitutions of Atoms and Molecules, the paper explained how electrons could keep from falling into the nucleus by suggesting t

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Let us pause for a moment and consider the structure of the atom as we know it now. Every atom is made from three kinds of elementary particles: protons, which have a positive electrical charge; electrons, which have a negative electrical charge; and