What If the Moon Didn't Exist?: Voyages to Earths That Might Have Been
What If the Moon Didn't Exist?: Voyages to Earths That Might Have Been
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如果月球不存在怎么办？：可能存在的地球航行
DOI：
10.5860/choice.31-3764
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发表时间：
1993
影响因子：
1.5
通讯作者：
N. Comins
中科院分区：
文献类型：
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作者：
N. Comins
地球上孕育生命的因素是什么？如果这些元素中的任何一个被改变了，生命又会如何进化？如果月球离地球比现在更近，潮汐会更极端;地球自转会更慢，白天会更长。相反，如果没有月球，地球的自转速度将比现在快五倍以上，潮汐也会低得多。在没有月亮的地球上，大气层的厚度和组成可能与金星相同，那里没有生命。如果地球有两个月亮呢？或者地球的密度更小，或者太阳系更年轻，或者更靠近宇宙的边缘？地球上的生命会是什么样子？在这本书中，Neil Comins分析了差异如何影响地球上的植物，动物和人类生活。他的研究应该有助于读者了解地球在太阳系中的地位，以及这个地方是多么脆弱。
What were the factors that spawned life on Earth? And how would life have evolved if any of those elements were changed? If the moon were closer to the Earth than it is, tides would be more extreme; the Earth would rotate more slowly, creating longer days. Conversely, if there was no moon, the Earth would rotate more than five times faster than it does, and tides would be much lower. On a moonless Earth, the atmosphere would probably be of the same thickness and makeup of Venus, where there is no life. And what if Earth had two moons? Or if the Earth were less dense, or if the solar system were younger, or located closer to the edge of the universe? What would life on Earth be like? In this book, Neil Comins analyzes how differences would affect the plant, animal and human life on planet Earth. His examination should help readers gain an understanding of the Earth's place in the solar system, and of just how fragile that place is.