Supermassive Black Holes 超大质量黑洞 - 9

Four times a year, Ghez focuses the telescope on the stars of the very heart of our Milky Way. She is looking for the telltale high speeds that reveal the presence of a black hole. The center of the M

Dentist's Drill

Alice: Hello, I'm Alice Stephen: And I'm Stephen.Alice: And this is 6 Minute English! This week were talking about a very commonphobia a fear of the dentist and a possible new treatment. But first of all,Stephen, how does this sound make you feel? In

高考英语作文高分必备 实践篇 039

How to repart a plaint When the plant grows too large for its original part. It needs to be reparted. This can be done quickly and easily if you follow this instructions. First, you should cut off the bottom of the part with small stones. Then put tw

VOA标准英语2011--Scientists to Drill Huge Hole in Antarctic Ice

Scientists to Drill Huge Hole in Antarctic Ice Antarctica is the largest reservoir of glacial ice on the planet. An expedition of international scientists is headed to the frozen continent to study why its glaciers are retreating so fast. What they f

Technique May Eliminate Drill-and-Fill Dental Care

Technique May Eliminate Drill-and-Fill Dental Care For over a hundred years, dentists have been repairing cavities by removing the decayed tooth tissue with a drill and filling the hole with metal or plastic material. Depending on the cavitys depth,

China, Russia Conduct Joint Drill

China and Russia on Friday started joint naval drills off the coast of Russia's Far East. Seven vessels from China's North Sea Fleet and South Sea Fleet and 12 vessels from Russia's Pacific Fleet are taking part in the weeklong exercises. Participati

英语听力：2013-10-11 地平线：黑洞吞噬—10

It's like trying to pick out an individual inside the middle of a busy city, with lights and cars, and things happening all around them. But that wasn't the only problem. Vast, swirling clouds of dust and gas prevent visible light from the centre of

英语听力：2013-10-09 地平线：黑洞吞噬—9

At last, astronomers had a map of our galaxy. A panorama of the Milky Way, it would never be possible to see from Planet Earth. 27,000 light-years from our solar system is the centre of our galaxy. If we were ever going to have a chance of seeing a b

英语听力：2013-11-13 地平线：黑洞吞噬—24

The X-ray image revealed how the black hole at the heart of the galaxy was firing unimaginable amounts of radiation into surrounding space and with extraordinary consequences. We could see what was going on at the centre and we could start to underst

英语听力：2013-11-08 地平线：黑洞吞噬—22

Was there any connection between the two? What Magorian discovered was completed unexpected. The relationship that we find was essentially that the bigger the galaxy, the bigger the black hole. That's in its broad terms. If you want to be a bit more

英语听力：2013-10-20 地平线：黑洞吞噬—14

Instead, it seems to be a gas cloud moving at huge speeds right in the direction of the black hole. But what really rang along bells was the way it had changed shape. We see that this gas cloud as it moves closer and closer to the black hole, is gett

小狐外传 第36期:月亮老师

Come on, Fox, said the others. 来吧，小狐其他人说。 It's fun! said Junior. 很好玩的！朱尼尔说。 It's wild! said Carmen. 很刺激的！卡门说。 Fox is scared! said Dexter. 小狐害怕了！德克斯特说。 You're not afraid

VOA慢速英语20060515a

DEVELOPMENT REPORT - Need to Dig a Well? Start HereBy Gary Garriott Broadcast: Monday, May 15, 2006 This is Shep O'Neal with the VOA Special English Development Report. There are several low-cost ways

音乐咖啡厅:Rihanna再度牵手Justin Timberlake(Hole In

音乐咖啡厅:Rihanna再度牵手Justin Timberlake(Hole In My Head) Artist：Rihanna Song：Hole In My Head [00:06.66]You got a hole in your head [00:09.79]You got a hole in your head girl [00:13.10]You got a hole in your head [00:16.19]You got a h

This Hole in the Ground

There was once a farmer who lived near a road. It was not a busy road, but from time to time, cars passed the farm. Near the farm gate, there was a large hole in the road. This hole was always full of water, and the drivers of the cars could not see

Down the Rabbit Hole　

Down the Rabbit Hole Alice and her big sister were sitting on the grass. Her sister was reading a book, but Alice had nothing to read. She looked at her sister's book again. There were no pictures in it. What good is a book without pictures? She wond

英闻天下——116 Chinese Expert Warning against Japan Drill

Military experts in China are warning against Japan's latest drill apparently aimed at recapturing lost islands. Military expert Yin Zhuo says the drill could be preparation for future operations on the Diaoyu islands. According to Japanese media rep

Iran wraps up missile drill, warns against military aggression on country

TEHRAN, July 4 (Xinhua) -- The Iranian Islamic Revolution Guards Corps (IRGC) concluded the three-day missile drill on Wednesday with Iranian military officials warning against any military aggression on the country. On the third and last day of the

Beijing police run drill ahead of political sessions

BEIJING, Feb. 24 (Xinhua) -- Police in Beijing municipality have performed an emergency response drill in their preparations for the country's annual legislative and political advisory sessions, a police officer said Friday. The drill was organized t

万物简史 第304期:地下的烈火(12)

And what causes these massive intraplate rupturings? 这种跨板块大地震是怎么发生的？ Something deep within the Earth. 原因在地球深处。 More than that we don't know. 更多的情况我们就不知道了。 By the 1960s scientists