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Supermassive Black Holes 超大质量黑洞 - 14

It means that Silk and Ree's theory may be right and if it is also right that supermassive black holes helped trigger star formation, then it must mean that all giant black holes and their galaxies ar

发表于:2018-12-07 / 阅读(307) / 评论(0)

超大质量黑洞

Supermassive Black Holes 超大质量黑洞 - 8

In every galaxy scientists looked at, they found evidence for a supermassive black hole. NGC 3115 NGC 3377 NGC 3379 In M31 and M32 In total there is probably 20-30 or so black holes that have been fou

发表于:2018-12-07 / 阅读(389) / 评论(0)

超大质量黑洞

Supermassive Black Holes 超大质量黑洞 - 1

In March 2000, two astronomers made an extraordinary discovery, one that is set to overturn our understanding of how the universe formed. We're never going to see a time like this in astronomy again.

发表于:2018-12-07 / 阅读(390) / 评论(0)

超大质量黑洞

Supermassive Black Holes 超大质量黑洞 - 2

But we are just one in 125 billion galaxies of different shapes and sizes spinning through space. Yet scientists haven't been able to explain how a single one of these galaxies was created. Galaxy for

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超大质量黑洞

Supermassive Black Holes 超大质量黑洞 - 4

This ferocious heart of brilliant hot gas is called a quasar. Scientists thought this whirling mass might be caused by a giant black hole sucking up gas and stars, literally feeding on the center of a

发表于:2018-12-07 / 阅读(303) / 评论(0)

超大质量黑洞

VOA慢速英语2011--Blue Holes: Some of the Least Explored Areas on Earth

EXPLORATIONS - Blue Holes: Some of the Least Explored Areas on Earth BARBARA KLEIN: Im Barbara Klein. STEVE EMBER: And Im Steve Ember with EXPLORATIONS in VOA Special English. A blue hole is a flooded sea cave with a hole that opens up at the lands s

发表于:2018-12-07 / 阅读(100) / 评论(0)

2011年VOA慢速英语(十一)月

温馨夜读II PART4 12.18 Holes in His Mind

[00:00.52] 12.18 Holes in His Mind [00:06.29]Major James Nesmeth had a dream of improving his golf game and he developed a unique method of achieving his goal. [00:14.35]Until he devised this method, he was just your average weekend golfer, shooting

发表于:2018-12-26 / 阅读(89) / 评论(0)

温馨夜读II

双语有声阅读:Black Holes 黑洞

What is a black hole? Well, it's difficult to answer this question, since the terms we would normally use to describe a scientific phenomenon are inadequate here. Astronomers and scientists think that a black hole is a region of space (not a thing) i

发表于:2019-01-02 / 阅读(82) / 评论(0)

双语有声阅读

Supermassive Black Holes 超大质量黑洞 - 11

Those stars don't feel the black hole. They feel the rest of the stars in the galaxy. They don't know or care that the black hole is there. If you took the black hole away from the galaxy, they would

发表于:2019-01-02 / 阅读(350) / 评论(0)

超大质量黑洞

Supermassive Black Holes 超大质量黑洞 - 10

If, as it now seems, every single galaxy has a black hole at its heart, this can't be a coincidence. Perhaps black holes are an essential part of what galaxies are and how they work. No one had expect

发表于:2019-01-02 / 阅读(378) / 评论(0)

超大质量黑洞

电影歌曲:Supermassive Black Holes Muse

Supermassive Black Holes Muse oh baby dont you know i suffer? oh baby can you hear me moan? you caught me under false pretences how long before you let me go? you set my soul alight you set my soul alight (you set my soul alight) glaciers melting in

发表于:2019-01-03 / 阅读(117) / 评论(0)

电影歌曲

SCIENCE IN THE NEWS - Stephen Hawking and Black Holes / Quan

SCIENCE IN THE NEWS - Stephen Hawking and Black Holes / Quantum Theory By Caty Weaver Broadcast: Tuesday, August 17, 2004 VOICE ONE: This is SCIENCE IN THE NEWS, in VOA Special English. I'm Bob Dought

发表于:2019-01-07 / 阅读(116) / 评论(0)

科技之光

VOA慢速英语2010年-EXPLORATIONS - Blue Holes: Some of the

BARBARA KLEIN: Im Barbara Klein. STEVE EMBER: And Im Steve Ember with EXPLORATIONS in VOA Special English. A blue hole is a flooded sea cave with a hole that opens up at the lands surface. These cave systems form in carbonate rock, often on islands.

发表于:2019-01-12 / 阅读(115) / 评论(0)

2010年VOA慢速英语(十一)月

New Data Adds to Understanding of 'Black Holes'

New Data Adds to Understanding of 'Black Holes' WASHINGTON Scientists continue to learn more about black holes in space, places where the pull of gravity is so strong that not even light can escape. Black holes occur after supergiant stars explode in

发表于:2019-01-14 / 阅读(130) / 评论(0)

VOA标准英语2016年(九月)

英语听力精选进阶版 2132

Background: 澳大利亚当局决定对一大批蜂拥而至的野生骆驼采取驱赶行动。多达六千头骆驼横冲直闯进入该国北部一个小居民区，践踏了民宅的篱笆，污染了水源，让当地居民吓得不敢出门。现

发表于:2019-01-16 / 阅读(65) / 评论(0)

英语听力精选进阶版

美国国家公共电台 NPR At Intel, A Retirement Perk That Can Kick Off A New Career As A Paid Fellow

STEVE INSKEEP, HOST: Not everybody who reaches the so-called retirement age is ready to retire, but they may be ready for a change. And Intel would like some of its employees to have some help. Since 2012, the tech giant has paid some of its retirees

发表于:2019-01-17 / 阅读(86) / 评论(0)

2017年NPR美国国家公共电台4月

每日一词【844】fuel：刺激

今天我们要学的词是fuel。 Fuel, 做为动词，有刺激的意思。The basketball player put his house up for sale, fueling speculation that he is being traded, 这个篮球队员正在卖房子，大家因此猜测，他可能要被球队换

发表于:2019-02-05 / 阅读(113) / 评论(0)

英语每日一词

学个词Learn a Word 第844期 Fuel

发表于:2019-02-06 / 阅读(62) / 评论(0)

英语单词荟萃

英语听力精选进阶版 7132

发表于:2019-02-13 / 阅读(76) / 评论(0)

英语听力精选进阶版

迷你对话学地道口语第303期:完全地

迷你对话 A: I wish you would not be so selfish. 我希望你不要太自私。 B: Selfishness is one human beings instincts. It is very difficult to get it out root and branch. 自私是人类的本性之一，想连根拔除是很难的。 A: Bu

发表于:2019-02-15 / 阅读(105) / 评论(0)

迷你对话学地道口语

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A. B. L.

additive lubricating oil

air resister

anacreontics

average advanced norm

center stake leveling