文章列表
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1.万物简史 第614期:冰河时代(11)
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The cause of ice ages, Koppen decided, is to be found in cool summers, not brutal winters. If summers are too cool to melt all the snow that falls on ...
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2.万物简史 第613期:冰河时代(10)
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Happily this was precisely the sort of repetitive toil that suited Milankovitch's temperament. For the next twenty years, even while on vacation, he w...
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3.万物简史 第612期:冰河时代(9)
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Part of the problem was that Croll's computations suggested that the most recent ice age occurred eighty thousand years ago, whereas the geological ev...
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4.万物简史 第611期:冰河时代(8)
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Croll was the first to suggest that cyclical changes in the shape of Earth's orbit, from elliptical (which is to say slightly oval) to nearly circular...
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5.万物简史 第610期:冰河时代(7)
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Doubtless it helped that he had settled in New England, where the long winters encouraged a certain sympathy for the idea of interminable periods of c...
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6.万物简史 第609期:冰河时代(6)
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William Hopkins, a Cambridge professor and leading member of the Geological Society, endorsed this view, arguing that the notion that ice could transp...
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7.万物简史 第608期:冰河时代(5)
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He lent Agassiz his notesthen came very much to regret it as Agassiz increasingly got the credit for what Schimper felt, with some legitimacy, was his...
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8.万物简史 第607期:冰河时代(4)
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Local peasants, uncontaminated by scientific orthodoxy, knew better, however. The naturalist Jean de Charpentier told the story of how in 1834 he was ...
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9.万物简史 第606期:冰河时代(3)
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They knew there was something odd about the past. The European landscape was littered with inexplicable anomaliesthe bones of arctic reindeer in the w...
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10.万物简史 第605期:冰河时代(2)
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Spring never came and summer never warmed: 1816 became known as the year without summer. Crops everywhere failed to grow. In Ireland a famine and asso...