Earth and Sky:Black and White　黑与白

Black and White黑与白 Sometimes you hear it said that white is a combination of all the colors of the rainbow -- and that black is the absence of color. Find out more about whether black and white are colors -- today on Earth and Sky. JB: This is Ear

Earth and Sky:Raindrops 雨滴

Raindrops 雨滴 From a light rain to a heavy downpour, raindrops fall to Earth's surface. And if you watch over time, you'll see that some raindrops are small and some much larger. Find out why -- on today's Earth and Sky. DB: This is Earth and Sky,

太阳科普 第13期

When the sunspots disappeared something on the sun changed 太阳黑子消失时，太阳表面的变化导致 that cooled the Earth down. 地球温度降低 But it wasn't that the solar output changed. 改变的并不是太阳的输出量 No matter

太阳科普 第15期

The key difference of course is that a sunspot's 最关键的不同点在于太阳黑子 an awful lot bigger and so the total energy, 大得多，所以太阳磁场内 or the amount of energy in the magnetic field 所含的总能量大得惊人 on th

太阳科普 第14期

It sits a million miles away from the Earth 它位于距地球一百万里处的 at the Lagrangian point 拉格朗日点 where the gravitational pull from the Earth and the sun is equal. 此处地球和太阳的引力相等 Fixed in space it has an u

太阳科普 第5期

Today that sounds ridiculous. 今日这种说法听来荒唐 But two hundred years ago it didn't seem so unlikely. 但是两百年前还颇言之成理 It was widely believed that 当时一般人认为 the Earth was only a few thousand years old. 地球

太阳科普 第7期

As they grow bigger and bigger, 随着体积越来越大 they start to spin and throw out a disk of debris 它们开始旋转，甩出的碎屑形成盘状 that will coalesce to form a solar system. 在日后融合形成太阳系 This kind of process

太阳科普 第9期

Plasmas I always like to think of as being like naughty children. 我一直觉得电浆就像调皮的小孩 They're full of energy and they are, 充满了能量，随时随地都想捣蛋 want to misbehave and it's ourjob to try 我们的工作就是

太阳科普 第10期

Some people feel quite miserable and depressed 有些人一到冬天就觉得忧郁 and gloomy during the winter months. 消沉，诸事不顺 And some people,a small proportion, 少数人甚至 will go on to develop clinically significant depression

太阳科普 第11期

But the sun is much more than a giant lightbulb. 但是太阳不只是个巨大的灯泡 There are other forces at work in the sun. 其内部还有其他的力量正在运作 Forces that change over minutes and over years. 这些力量可能在数分钟

Earth and Sky:Fire Regime 火

Fire Regime 火 Fire was a creation of life -- born from oxygen and organic matter -- ignited by lightning. Thus fire has been a fundamental feature of the Earth for at least 400 million years. A scientist talks about fire -- today on Earth and Sky.

Earth and Sky:Sunscreened Plants 遮光植物

Sunscreened Plants 遮光植物 A NASA researcher is finding that alfalfa plants grow more poorly when exposed to UVB -- ultraviolet B radiation from the sun. Learn more about sunscreened plants -- today on Earth and Sky. JB: This is Earth and Sky. Eart

Earth and Sky:Amazon GIS 亚马逊地理信息系统

Amazon GIS 亚马逊地理信息系统 In the Amazon, there's a growing human population in a region that also contains 30% of Earth's total plants and animals. Learn how scientists have put together an Internet window to the Amazon -- today on Earth and Sky

英语科普文选：Internet(互联网)

The Internet is a giant network of computers located all over the world that communicate with each other. The Internet is an international collection of computer networks` that all understand a standard system of addresses and commands, connected tog

英语科普文选：如何建立安全的电子邮件

Unencrypted messages can be hijacked in transit and read or altered．If the mail is not digitally signed，you can't be sure where it came from． 未加密的信息可能在传输中被截获、偷看或窜改。如果邮件不是数字签名的，你

英美报纸那些事：独立报停刊 欧美报纸科普

The final print edition of The Independent has been sent to press, as the title moves to a digital-only format. 《独立报》的最后一刊印刷版已经开始印刷，之后报纸就只会出电子版了。 The paper's last front page features a

关于报纸那些事：独立报停刊 欧美报纸科普

The final print edition of The Independent has been sent to press, as the title moves to a digital-only format. 《独立报》的最后一刊印刷版已经开始印刷，之后报纸就只会出电子版了。 The paper's last front page features a

英国脱欧明日公投 你需要科普的这里都有了

I agree that language learning is cool, but I challenge the assumption that its difficult. 我认同语言学习很酷，但我不认同语言学习不容易这一说法。 Languages cannot be taught, they can only be learned. Having someone or somet

食材科普之蛋黄酱，这九点你怎能不知？

Of all the foods out there, mayonnaise is definitely one of the most divisive. Some hate it so much they can hardly stand the sight of this condiment, others would happily slather it on top of everything they eat. 蛋黄酱绝对是所有食物中最具

考研英语真题的五大导向作用

考研英语真题是英语复习的重要参考书，做考研英语真题是先通过历年考研英语真题把基础打好，打好基础的过程中，顺便找到做题的感觉，掌握好技巧。建议各位考生一定要把真题作为主要