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Table-top astrophysics 桌面上的天体物理学 How to build a multiverse 怎样建立一个多元宇宙 Small models of cosmic phenomena are sheddinglight on the real thing 宇宙现象的一些小模型反映了真相 THE heavens do not lend themselves to poking and prodding. 天空不会帮助任何企图研究它的行为。 Astronomers therefore have no choice but to rely on whatever data the cosmos deigns tothrow at them. 因此，天文学家们只能听天由命，任何宇宙透露出的一些数据，他们都当做宝贝一样。 And they have learnt a lot this way. 不过他们通过这种方式也学到了很多。 Thus you can even study chemistry in space that wouldbe impossible in a laboratory. 因此，人们甚至能在太空中研究化学，而这在实验室是无法做到的。 Some astronomers, though, are dissatisfied with being passive observers. Real scientists,they think, do experiments. 虽然，一些天文学家们对成为被动的观察者很是不满，他们认为真正的科学家应该是有所行动的。 It is impossiblenot to mention inadvisableto get close enough to a star or a black holeto manipulate it experimentally. | 
