标签：小行星 相关文章

太空岩石仍是科学家未解之谜

Space Rock Still a Mystery to Scientists Oumuamua is the first interstellar object scientists have found passing through our solar system. Interstellar means it came from another star system like our own. In November 2017, Oumuamua was seen moving be

发表于:2018-11-27 / 阅读(430) / 评论(0) 分类 2018年VOA慢速英语(十一)月

SSS 2010-04-29

This is Scientific American's 60-Second Science. I'm Karen Hopkin. Thisll just take a minute. Any school kid can tell you that comets are made of ice. That frozen water burning off is what gives comets their characteristic tails. But asteroids were g

发表于:2018-12-02 / 阅读(68) / 评论(0) 分类 Scientific American(四)月

侏罗纪搏击俱乐部 第168期:全球变暖是罪魁祸首

The K-T boundary marks the end of the age of dinosaurs, and the beginning of the age of mammals. KT界限层标志着恐龙时代的终点和哺乳动物时代的开端。 But does the K-T boundary really signify the absolute end of all dinosaurs? 不过

发表于:2018-12-28 / 阅读(62) / 评论(0) 分类 侏罗纪搏击俱乐部

小王子 第9期:真实与虚伪

When you tell them that you have made a new friend, they never ask you any questions about essential matters. 当你对大人们讲起你的一个新朋友时，他们从来不向你提出实质性的问题。 They never say to you, What does his voi

发表于:2019-01-01 / 阅读(27) / 评论(0) 分类 小王子

速度与激情8之后：速9是否会转战太空？

《速度与激情8》近日在北美和中国上映后票房表现十分抢眼，片中的古巴飙车镜头赚足了观众的眼球。在8部《速度与激情》里，故事情节已走向疯狂，主角们从偷电子设备的无赖飙车党晋级成

发表于:2019-01-03 / 阅读(111) / 评论(0) 分类 阅读空间

SSS 2009-01-06

This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. If we want to learn more about our planet and other planets in the universe, we can get some help from stars that are long dead and gone. Thats what U.

发表于:2019-01-08 / 阅读(56) / 评论(0) 分类 Scientific American(一)月

SSS 2011-04-08

This is Scientific Americans 60-Second Science. Im Karen Hopkin. This will just take a minute. When you hear about asteroids close to the Earth, you probably have visions of collisions and extinctions and a post apocalyptic future or of brave space c

发表于:2019-01-08 / 阅读(101) / 评论(0) 分类 Scientific American(四)月

TED演讲:地球的年龄有多大(1)

How old is the Earth? 地球的年龄有多大？ Well, by counting the number of isotopes in a sample of rock that's undergone radioactive decay, 通过对岩石样品中正经历着放射衰变的同位素计数， geologists have estimated the Ear

发表于:2019-02-13 / 阅读(46) / 评论(0) 分类 TED演讲教育篇

学科分类词汇——天文类

1 ASTRONOMY 天文 astronomy 天文学 astronomical 天文的 astronomical observatory 天文台 astronomer 天文学家 astrophysics 天文物理学 astrology 占星学 pseudoscience 伪科学 cosmos(universe) 宇宙 cosmology 宇宙学 infinite 无限

发表于:2019-02-13 / 阅读(45) / 评论(0) 分类 实用英语

TED演讲：宏观历史(4)

And this is how it works. Gravity is more powerful where there's more stuff. 这就是它怎么运作的。重力场的作用力更大，拥有比较多的物质。 So where you get slightly denser areas, gravity starts compacting clouds of hydrogen

发表于:2019-02-14 / 阅读(52) / 评论(0) 分类 TED演讲教育篇

经济学人:空间探索:拂去尘埃(1)

Science and technology: Space exploration: Dusting yourself down 科技：空间探索：拂去尘埃 A new space suit could resist the damaging effects of sharp lunar dust. 一款新型的宇航服能够抵抗尖利的月尘带来的破坏性影响。

发表于:2019-02-16 / 阅读(41) / 评论(0) 分类 经济学人科技系列

世界名人简介 第41期:艾伦·麦克阿瑟

Dame Ellen MacArthur (born in 1976) is a very brave and talented English yachtswoman. Her first name is Ellen; Dame is a special title she received for her outstanding achievements from the British Queen. On 7 February 2005, she broke the world recor

发表于:2019-02-19 / 阅读(78) / 评论(0) 分类 世界名人简介

TED演讲:游戏奖励大脑的7种方式

I love video games. 我爱电子游戏 I'm also slightly in awe of them. 也对它抱有些许敬畏 I'm in awe of their power 我敬畏它们 in terms of imagination, in terms of technology, in terms of concept. 想象力，技术，概念方面的力

发表于:2019-02-21 / 阅读(54) / 评论(0) 分类 TED演讲教育篇

万物简史 第291期:砰!(26)

Still less could we send up a shipload of space cowboys to do the job for us, as in the movie Armageddon; 我们更不可能发射一飞船警察去为我们干这个活儿，就像电影《善恶大决战》里的场面那样； we no longer possess

发表于:2019-02-25 / 阅读(219) / 评论(0) 分类 万物简史

万物简史 第287期:砰!(22)

Chicxulub is buried under two to three kilometers of limestone and mostly offshore, 奇克休留布大坑在两三公里的灰岩深处，而且大部分在近海。 which makes it difficult to study, Anderson went on, while Manson is really quite ac

发表于:2019-02-25 / 阅读(54) / 评论(0) 分类 万物简史

万物简史 第281期:砰!(16)

He insisted that the iridium had been deposited by volcanic action, 他坚持认为，铱是由火山活动沉积的， even while conceding in a newspaper interview that he had no actual evidence of it. 即使他在一次记者采访中承认，他拿

发表于:2019-02-25 / 阅读(51) / 评论(0) 分类 万物简史

万物简史 第278期:砰!(13)

The results were so unexpected, in fact, that the three scientists at first thought they had to be wrong. 实际上，结果完全出人意料，三位科学家起先以为自己错了。 The amount of iridium in the Alvarez sample was more than thre

发表于:2019-02-25 / 阅读(56) / 评论(0) 分类 万物简史

万物简史 第273期:砰!(8)

In a sense it hardly matters. 在某种意义上，这项工作并不很重要。 Identifying an asteroid doesn't make it safe. 确认一颗小行星不会使它安全一点。 Even if every asteroid in the solar system had a name and known orbit, 即使

发表于:2019-02-25 / 阅读(43) / 评论(0) 分类 万物简史

万物简史 第271期:砰!(6)

What Shoemaker and his colleagues found was that there was more risk out therea great deal morethan anyone had ever imagined. 苏梅克和他的同事们发现的是，外层空间存在着比想像的还要多多得多的危险。 Asteroids, as most

发表于:2019-02-25 / 阅读(71) / 评论(0) 分类 万物简史

万物简史 第270期:砰!(5)

The few craters that remained evident on Earth (most had been eroded away) were generally attributed to other causes or treated as fluky rarities. 一般来说，地球上仅有的几个明显的坑(大多数已经被侵蚀干净)要么被归于别的原

发表于:2019-02-25 / 阅读(54) / 评论(0) 分类 万物简史
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