Many Skies 2024 pdf epub mobi 电子书


Many Skies

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发表于2024-11-19

Many Skies 2024 pdf epub mobi 电子书

Many Skies 2024 pdf epub mobi 电子书

Many Skies 2024 pdf epub mobi 电子书



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出版者:Rutgers Univ Pr
作者:Upgren, Arthur R.
出品人:
页数:208
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出版时间:2005-1
价格:$ 28.19
装帧:HRD
isbn号码:9780813535128
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Many Skies 2024 pdf epub mobi 电子书 图书描述

What if Earth had several moons or massive rings like Saturn? What if the Sun were but one star in a double-star or triple-star system? What if Earth were the only planet circling the Sun? These and other imaginative scenarios are the subject of Arthur Upgren's inventive book Many Skies: Alternative Histories of the Sun, Moon, Planets, and Stars. Although the night sky as we know it seems eternal and inevitable, Upgren reminds us that, just as easily, it could have been very different. Had the solar system happened to be in the midst of a star cluster, we might have many more bright stars in the sky. Yet had it been located beyond the edge of the Milky Way galaxy, we may have no stars at all. If Venus or Mars had a moon as large as ours, we would be able to view it easily with the unaided eye. Given these or other alternative skies, what might Ptolemy or Copernicus have concluded about the center of the solar system and the Sun? This book not only examines the changes in science that these alternative solar, stellar, and galactic arrangements would have brought; it explores the different theologies, astrologies, and methods of tracking time that would have developed to reflect them. Our perception of our surroundings, the number of gods we worship, the symbols we use in art and literature, even the way we form nations and empires are all closely tied to our particular (and accidental) placement in the universe. Many Skies, however, is not merely a fanciful play on what might have been. Upgren also explores the actual ways that human interferences such as light pollution are changing the night sky. Our atmosphere, he warns, would appear very different if we had a belt of debris circlingthe globe and blotting out the stars, as will happen if advertisers one day pollute space with brilliant satellites displaying their products. From fanciful to foreboding, the scenarios in Many Skies will both delight and inspire reflection, reminding us that ours is but one of many worldviews based on our experience of a universe that is as much a product of accident as it is of intention.

Many Skies 2024 pdf epub mobi 电子书

Many Skies 2024 pdf epub mobi 电子书
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立刻按 ctrl+D收藏本页
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