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Jingdong book

发现科学百科全书·宇宙

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Books Science and Nature Astronomy

Jingdong book

发现科学百科全书·宇宙

Name: 发现科学百科全书·宇宙
Brand: Jingdong book
SKU: 4137000161
Price: 36.46 USD
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★ 具有百年历史的美国世界图书公司（World Book, Inc.）打造，畅销各国，影响力广泛，中文版DU家引进。

★ 内容全面，知识丰富，囊括了学校课本中的主要科学知识。与同类书相比，知识点更为简明清晰。

★ 适合青少年阅读。采用条目加配图的形式。用浅显易懂的语言简明扼要地介绍各种知识点，配以生动有趣的图片，给青少年带来JI佳的阅读体验。

Content Description

《宇宙》是《发现科学百科全书》之一，引进自美国世界图书公司（World Book, Inc.）。采用条目加配图的形式，向孩子们介绍了宇宙空间及宇宙中的行星、恒星、星系、卫星等内容。使孩子们走进浩瀚的宇宙，探索太空的奥秘，了解相关的航天知识。通过浅显易懂的释文与生动有趣的图片，简明扼要地介绍各种知识点，为孩子们解答关于宇宙的问题，如黑洞是如何形成的，宇航员需要接受哪些训练，太阳的内部结构是怎样的。此外还有可实践的科学小实验和活动，鼓励青少年主动去探索，激发他们对科学的热情。本书兼具知识性与趣味性，适合青少年阅读，是相伴孩子成长的珍贵礼物。

Author Description

美国世界图书公司（World Book, Inc.）成立于1917年，具有百年历史。一直开发适合家庭和学校使用的优秀科普图书，以吸引世界各地所有年龄段的孩子在家里、旅途中、教室或图书馆中使用，以提高世界各地儿童的学习和阅读水平。目前拥有很多适合不同年龄段教育需求的产品。其品牌产品有《世界百科全书》等。

Catalogue

阿雷西博天文台 1

阿利斯塔克 1

阿姆斯特朗 2

阿耶波多 2

埃拉托色尼 3

矮行星 3

艾伦望远镜阵列 4

暗物质 5

奥尔特云 6

奥林匹斯山 7

奥乔亚 7

巴纳德 8

白矮星 8

白羊座 9

半人马座α 9

半人马座比邻星 10

邦达尔 11

宝瓶座 11

暴胀理论 12

北斗和小北斗 13

北极星 13

本星系群 14

波尔科 15

博尔登 15

不明飞行物 16

布卢福德 17

超新星 18

磁暴 18

大爆炸 20

大红斑 20

大双筒望远镜 21

地外智慧生命 22

第谷•布拉赫 23

第四维度 23

电磁波 24

电离层 25

二分点 26

范艾伦辐射带 27

飞马座 27

伽马射线 29

伽马射线暴 29

哥白尼 30

哥伦比亚号事故 31

格伦 32

谷神星 32

光 33

光年 35

光污染 35

轨道 36

鬼冢承次 37

国际空间站 38

……

Book Abstract

金星

Venus

金星是离太阳第二远的行星，仅次于水星。金星在距离太阳约1.082亿千米的轨道上运行。

人们不需要用望远镜就能看到金星。从地球上看，金星比夜空中的任何星星都要亮。在一年中的某些时候，金星是早上东方天空中天色大亮前仍能看到的那颗星。在其他时间，它是傍晚在西方天空可以看到的第一颗星。金星发出如此耀眼的光芒，以至于早期的天文学家以罗马爱与美之女神维纳斯的名字命名它。

金星有时称为“地球的孪生星球”。金星比其他任何行星离地球都更近。在最近的时候，它距

离地球大约3820万千米。金星和地球的大小也差不多。然而，与地球不同，金星没有卫星。

科学家认为，在大约4 0亿年前，金星曾经更像地球。那时，太阳不像今天这样又亮又热。那个时候，金星可能温度适中，有流水，甚至有海洋。但是随着时间的推移，太阳变得越来越亮，越来越热，金星也变得越来越热，不像地球了。

金星现在是太阳系中最热的行星，表面温度约为460℃。它的大气层主要由二氧化碳气体构成。二氧化碳将来自太阳的热量束缚在接近地面的地方。

金星的大气层比地球的大气层厚得多也重得多。大气的重量对金星施加了令人难以置信的压力，如果一个人试图站在金星表面，他很快就会被压碎。

漂浮在大气中的是浓硫酸云。硫酸腐蚀性极强，能溶解金属。从送往金星的探测器得到的一些发现表明，这些云可能会产生硫酸雨。但是金星的热量太多了，雨滴在到达地表之前就蒸发了。

金星的云层使得天文学家很难了解这颗行星的表面。科学家依靠地球上的科学仪器和太空探测器探索金星。利用这些设备，天文学家们发现了许多有趣的地貌，包括平原、山脉、峡谷和山谷。金星是太阳系中最平的行星。平坦的平原覆盖了大约65%的表面。成千上万的火山点缀着这些平原，这些火山的直径在0.8～2 4 0千米之间。金星的六

个山区约占金星表面的35 %。其中一条名为麦克斯韦的山脉，高约11千米，比地球上最高的山峰珠穆朗玛峰还要高。它绵延870千米，是金星上最高的地貌。金星表面也点缀着一些环形山。当小行星或其他小天体撞击行星时，就形成了这些碗状的坑。金星的环形山比月球、火星和水星的要少。这一事实表明，金星目前的表面还不到10亿年。

金星上的许多地表特征与地球上的没有任何类似之处。例如，金星有同心圆环凹地。这些环状结构直径150～580千米。科学家认为，行星内部的热物质上升到表面时形成

了这些同心圆环凹地。金星上也有镶嵌地块，它们是隆起的地块，分布在有许多形成于不同方向的山脊和山谷的区域。

金星绕太阳运行的轨道几乎是一个完美的圆，而太阳系中其他行星的轨道都为椭圆。金星上的一天比一年还要长。金星绕太阳一周大约需要225个地球日，但是金星自转非常慢，自转一次需要243个地球日。在金星上，一天比一年还长18个地球日。

没有太空旅行者去过金星。然而，科学家派出过航天器去探索这颗行星。1962年，第一艘经过金星附近的航天器是“水手2号”。美国和苏联各自向金星轨道发射了其他几艘航

天器。一些苏联航天器甚至降落在其表面。2005年，欧洲空间局发射了金星快车探测器。探测器的设计目的是研究金星的大气层，并扫描金星表面以寻找火山。探测器于2006年4月开始绕金星运行。2010年，金星快车的科学家宣布他们发现了“最新”火山活动的证据。他们说这种活动可能就发生在几百年前，但是也可能发生在250万年前。

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Jingdong book

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