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8期

Now the speed of light is a very,very big number. 光速是个很大的数字 So if we just take a small amount of mass, 所以只要一点点质量 you get a huge amount of energy. 就含有大量能量 And that's the energy which actually powers ou

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

美国国家公共电台 NPR 'Time: The Kalief Browder Story' Depicts Issues With Solitary Confinement

MICHEL MARTIN, HOST: Finally today, in recent years, we've heard a number of stories about the ways the criminal justice system has failed someone or some people. It's always painful, and it's always troubling. But it's particularly troubling when th

美国国家公共电台 NPR North Dakota Prison Officials Think Outside The Box To Revamp Solitary Confinement

RACHEL MARTIN, HOST: There are slightly more than 2 million people who are incarcerated in the U.S. That is nearly equal to the entire population of the city of Houston. Among those prisoners, thousands serve time in solitary confinement, isolated in

SSS 2010-02-19

When youre looking for a table in a crowded cafeteria, you probably give wide berth to the family that sounds like its sharing a big dish of whooping cough. Well, not if youre a house finch, particularly a male. Because a study in the journal Biology

SSS 2008-05-16

This is Scientific American 60-Second Science, Im Cynthia Graber. This will just take a minute. Heres one space mission that is definitely going to be unmannedNASA is going to the sun. The Johns Hopkins University Applied Physics Laboratory is buildi

SSS 2008-07-10

This is Scientific American's 60-Second Science. I'm Adam Hinterthuer. Got a minute? After a bad day at the office, were more likely to flip on a nature channel than find a flower-filled meadow or sunny beach to lower our stress. But if you cant head

英文药品说明书的写法（十一）

上述10项是绝大多数英文药品说明书中必备项目，但是许多说明书中还常常出现其他一些项目。例如： 1、特点（Characteristics） 2、性质（Properties） 3、药代动力学（Phamacokinetics） 4、用药过量（

英文药品说明书的写法（二）

第二节 性状 许多药品说明书的第一项是Description（性状），其原意是叙述、描写，在药品说明书及药典中一般都译为性状，其内容主要是介绍外观、理化性质、组成成分、结构、特征等。这一

VOA英语2010年-Sweden Appeals British Bail for 'WikiLeaks'

WikiLeaks founder Julian Assange will remain in jail after Swedish prosecutors appealed a British judge's decision to grant bail. Assange is wanted for questioning in connection with allegations of sexual molestation and rape in Sweden. A British jud

美国国家公共电台 NPR To Reform Prison System, Corrections Officer Put Himself In Solitary Confinement

To Reform Prison System, Corrections Officer Put Himself In Solitary Confinement play pause stop mute unmute max volume 00:0005:37repeat repeat off Update Required To play the media you will need to either update your browser to a recent version or u

美国国家公共电台 NPR Documentary Focuses On 'Voicelessness And Helplessness' Of Solitary Confinement

MICHEL MARTIN, HOST: We have one more conversation about the prison system with a look at a new film about solitary confinement. As we just talked about, prisons are closed off from the outside world. That's just one reason the access granted to dire

生活大爆炸第三季第九集_3

好吧 Well... -那我该给克瑞普克下毒 -不 - I suppose I could poison Kripke. - No! 不 这其实很简单 No. It's a simple matter. 有那么几种有毒化学物 There are several toxic chemicals 尸检是查不出来的 that'd be untracea

China faces severe plasma shortage: health minister

BEIJING, Dec. 11 (Xinhua) -- China is faced with severe challenges in collecting enough blood plasma to produce medicines, Health Minister Chen Zhu said Sunday. Chen called on the public to join blood donation after donating blood plasma at the Beiji

发送电子邮件也会产生碳足迹么？

You might not realise it, but sending even a short email has an impact on the environment. 你可能没有意识到，即使是发送一封小小的邮件也会对环境产生影响。 Scientists estimate that an email adds about four grams (0.14 oun

美国国家公共电台 NPR New York's Solitary Confinement Overhaul Gets Pushback From Union

STEVE INSKEEP, HOST: Here in the United States, some prison guards are defending the use of solitary confinement. It's been controversial for centuries. As long ago as 1824, the Marquis de Lafayette, hero of the American Revolution, was shocked to le

TED演讲:人生交叉点(7)

One of my favorite examples of liminal excellence comes from the late Dr. Claudia Alexander, 我最欣赏的一位具有交叉才能的榜样是已故的克劳迪娅亚历山大博士， a black woman plasma physicist, who passed away this past July

Lesson 44-1 Home Appliances 家用电器

Listen to the statements and check the correct answers. 1.Is sweeping out the tiny dust bothering you a lot? From now on if you have this machine, doing the housework will become a very easy job. This is a portable vacuum cleaner. lt's light and wire

Chinese health minister donates plasma

CHENGDU, May 5 (Xinhua) -- Chinese Health Minister Chen Zhu donated plasma on Saturday in Chengdu, capital of southwest China's Sichuan Province, and called on health workers to take the lead in blood donation to ease the country's blood supply short