单词：white dwarf
单词：white dwarf 相关文章
I Regain Confidence By Li Jun (李军青岛海洋大学) (2001年11月下旬，在上海举行的第七届21世纪爱立信杯英语演讲比赛华东地区比赛中获得第一名) 专家点评:本演讲语言较流畅，从具体事件人手，将主
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Disney World, Florida, is the biggest amusement resort in the world. It covers 24.4 thousand acres, and is twice the size of Manhattan. It was opened on October 1 1971, five years after Walt Disneys death, and it is a larger, slightly more ambitious
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Possible Earth-Like Planet Next Door? Scientists say they discovered an Earth-like planet orbiting the star closest to our planet other than the Sun. It is the closest planet ever found outside our solar system that could support life as we know it.
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Why Dwarf Galaxies Lack Star Power In a study in the journal Nature, researchers show that the relative lack of star density in dwarf galaxies need not conflict with standard cosmological models if you include the blast effects of supernovae. Karen H
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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.
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Once upon a time in Arabia there ruled a Sultan. He had a son. His name was Arfan. One of the courtiers was a witch. She hated the prince Arfan. So she poisoned the mind of the Sultan against his son. She said, You will be over powered by your son pr
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优秀英语演讲稿范文---我重树信心 I received a devastating blow to my self-confidence in the first interview of my college years. I applied to be a host in our Student Acting Troupe and felt confident that I would be accepted. But one of
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Once the fusion stops, the whole thing collapses under its own weight to form a white dwarf, so you got this very small blob which is incredibly dense, it's going to be something like a million times denser than it started off, so dense in fact that
探索与发现2015年
Thats why what we physicists called pressure. This pressure is created as the particles jostle for position. Its a principle of Quantum Mechanics and when it was applying to stars, the lives of dead white dwarfs suddenly made sense. What stopped them
探索与发现2015年
The enigma of the white dwarf has been resolved. Scientists have discovered how the vast majority of the stars, including our own sun, would end their days, as the white dwarfs gently fading into the darkness of the universe. But not all stars go so
探索与发现2015年
> 43 存在于恒星与行星间的黑色物质 DATE=5-2-01 TITLE=SCIENCE REPORT - Dark Matter BYLINE=Jill Moss (Start at 58
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Science and technology 科学技术 Table-top astrophysics 桌面上的天体物理学 How to build a multiverse 怎样构建多元宇宙 Small models of cosmic phenomena are shedding light on the real thing 微小模型逐步揭开宇宙中各种现象
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Science and technology 科学技术 Table-top astrophysics 桌面上的天体物理学 How to build a multiverse 怎样建立一个多元宇宙 Small models of cosmic phenomena are shedding light on the real thing 宇宙现象的一些小模型反映了
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For centuries it has been one of the most vexing mysteries for mankind: are we, the seven billion inhabitants of this wondrous [en]blue planet really alone, or is there life somewhere out there in the universe? 数百年来，人类一直为一个最大
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Scientists are usually portrayed as highly rational seekers of the truth - and they are that. But they also have qualities that make them more similar to you and me than you might think. NPR's Joe Palca has a story that reveals that quite dramaticall
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Webersat 韦伯卫星美国小型无线电照相卫星 West Ford 西福特美国广播通信试验卫星 Westar(West Star) 西联星美国国内通信卫星 White Cloud 白云美国海洋监测卫星 W
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