萬物簡史:PART I CH 3_5
來源:滬江聽寫酷
2011-08-14 07:00
這是一部有關(guān)現(xiàn)代科學(xué)發(fā)展史的既通俗易懂又引人入勝的書,作者用清晰明了、幽默風(fēng)趣的筆法,將宇宙大爆炸到人類文明發(fā)展進(jìn)程中所發(fā)生的繁多妙趣橫生的故事一一收入筆下。驚奇和感嘆組成了本書,歷歷在目的天下萬物組成了本書,益于人們了解大千世界的無窮奧妙,掌握萬事萬物的發(fā)展脈絡(luò)。
收獲英語 收獲一本好書~!
書本的朗讀語音很charming的磁性英音~~~大家可以好好學(xué)著模仿哦~~~?。?
因為原著為美國人所寫,單詞采用美式拼法,不抄全文,然后聽寫單詞或詞組(用[-No-]表示)以及句子(用[---No---]表示)。請邊聽寫邊理解文意,根據(jù)上下文注意各句標(biāo)號,這樣有助于提高正確率。
Hint
Zwicky
[---1---] In the early 1930s, he turned his attention to a question that had long troubled astronomers: the appearance in the sky of occasional unexplained points of light, new stars. [-2-]he wondered if the neutron—the subatomic particle that had just been discovered in England by James Chadwick, and was thus both novel and rather fashionable—might be at the heart of things. [---3---] Atoms would literally be crushed together, their electrons forced into the nucleus, forming neutrons. You would have a neutron star. Imagine a million really weighty cannonballs [-4-] down to the size of a marble and—well, you’re still not even close. [---5---] A [-6-]! But there was more. Zwicky realized that after the collapse of such a star there would be a huge amount of energy left over—enough to make the biggest bang in the universe. He called these [-7-]explosions supernovae. They would be—they are—the biggest events in creation.
But Zwicky was also capable of insights of the most startling brilliance.
Improbably
It occurred to him that if a star collapsed to the sort of densities found in the core of atoms, the result would be an unimaginably compacted core.
squeezed
The core of a neutron star is so dense that a single spoonful of matter from it would weigh 200 billion pounds.
spoonful
resultant
然而,茲威基聰明過人,具有敏銳的洞察力。20世紀(jì)30年代初,他把注意力轉(zhuǎn)向一個長期困擾天文學(xué)家的問題:天空中偶爾出現(xiàn)而又無法解釋的光點--新的恒星。令人難以置信的是,他懷疑問題的核心是否在于中子--英國的詹姆斯?查德威克剛剛發(fā)現(xiàn)的,因而是新奇而時髦的亞原子粒子。他突然想到,要是恒星坍縮到原子的核心那種密度,便會變成一個極其堅實的核。原子實際上已經(jīng)被壓成一團(tuán),它們的電子不得不變成核子,形成了中子。這樣就形成了一顆中子星。想像一下,把100萬枚很重的炮彈擠壓成一粒彈子的大小--哎呀,這還差得遠(yuǎn)呢。一顆中子星核的密度如此之大,里面的一調(diào)羹物質(zhì)會重達(dá)900億千克。只是一調(diào)羹??!然而,不僅如此。茲威基意識到,這樣的一顆恒星坍縮以后會釋放出大量的能量--足以產(chǎn)生宇宙里最大的爆炸。他把這種由此產(chǎn)生的爆炸叫做超新星。它們會是--實際上也是--創(chuàng)建宇宙過程中最大的事件。
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