标签：Murchison 相关文章

60秒科学:Murchison Meteorite's Chemical Bonanza

Murchison Meteorite's Chemical Bonanza The 1969 Murchison meteorite was known to harbor complex organic compounds, but a new analysis in Proceedings of the National Academy of Sciences finds that it may also contain millions of chemicals and shed lig

发表于:2019-01-02 / 阅读(136) / 评论(0) 分类 60秒科学

【英文短篇小说】The Enormous Radio

JIM AND IRENE WESTCOTT were the kind of people who seem to strike that satisfactory average of income, endeavor, and respectability that is reached by the statistical reports in college alumni bulletins. They were the parents of two young children, t

发表于:2019-01-23 / 阅读(51) / 评论(0) 分类 英文短篇小说

万物简史 第89期:敲石头的人们(14)

Meanwhile, geology had a great deal of sorting out to do, and not all of it went smoothly. From the outset geologists tried to categorize rocks by the periods in which they were laid down, but there were often bitter disagreements about where to put

发表于:2019-01-29 / 阅读(65) / 评论(0) 分类 万物简史

万物简史 第85期:敲石头的人们(7)

The members met twice a month from November until June, when virtually all of them went off to spend the summer doing fieldwork. These weren't people with a pecuniary interest in minerals, you understand, or even academics for the most part, but simp

发表于:2019-01-29 / 阅读(63) / 评论(0) 分类 万物简史

万物简史 第416期:生命的起源(10)

The Murchison meteorite was found to be 4.5 billion years old, 人们发现，默奇森陨石的年代已达45亿年， and it was studded with amino acidsseventy-four types in all, eight of which are involved in the formation of earthly proteins. 上面

发表于:2019-02-17 / 阅读(52) / 评论(0) 分类 万物简史

万物简史 第415期:生命的起源(9)

Life emerged so swiftly, in fact, that some authorities think it must have had helpperhaps a good deal of help. 实际上，生命出现得太快，有的权威人士认为肯定有什么东西帮了忙也许是帮了大忙。 The idea that earthly l

发表于:2019-02-17 / 阅读(60) / 评论(0) 分类 万物简史
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