99e热国产最新地址获取,成人一a毛片免费视频,一级a爱看片免费观看,最近最新中文字幕大全免费一

 
 
 

Fusion Reactor Still in Works

VOA 2016-04-26 08:53

分享到

 

Get Flash Player

All today’s nuclear power plants make energy by thge splitting of uranium atoms -- which creates a lot of useful heat but also a lot of dangerous and deadly nuclear waste. The opposite process -- fusion -- also creates heat but with hardly any pesky radiation. The problem is that fusion is way more difficult to achieve. Scientists from 35 nations, including United States, Russia and China, are painstakingly trying to solve the problem -- to create technology that could power the world for thousands of years.

Scientists have long known that fusing atoms of two isotopes of hydrogen, deuterium and tritium, releases huge amounts of energy and very little radiation. But doing so requires the kind of heat and pressure found in our sun, though focused on a much, much smaller point, -- about the size of a person's smaller pocket change.

Modern technology says it is very difficult but not impossible to achieve. Powerful lasers would provide pressure and heat while huge magnets would keep the little sun levitating in the middle of a special chamber.

Fusion, It is projected, will yield up to 10 times more energy than it uses.

Started in 1985, a project in Southern France called ITER is slowly plodding along with plans for a working fusion reactor. It's been plagued by politics, and by organizational and funding difficulties.

But its new director general, French physicist and chemist Dr. Bernard Bigot, said the reactor is finally on its way to being built.

“For example the first delivery of what we call the cryostat piece is coming from India, okay. In the U.S., General Atomics has been able for example to deliver the first set of the central solenoid,” said Bigot.

The Congressional committee that approves U.S. participation in the project has seesawed on its support. In 1998 it withdrew from the project, only to rejoin the effort in 2005 and then drastically reduce the funding in 2008. Bigot came to the U.S. to try to persuade it to stay on.

“The U.S. is now wondering if it is worth to move on, okay, forward with project for the next coming years or maybe to step down. And so it was quite important to show them that despite the fact they just have the sharing of 9%, okay, project is moving on and it’s worth for them to stay in,” said Bigot.

Bigot added that if the new schedule is endorsed by seven core members, including the U.S., China and Russia, the assembly of the reactor could be finished by 2025, with first experiments starting in 2028.

Ultimately the reactor will cost billions of dollars to build, but if it works, the results will be literally priceless.

Vocabulary

nuclear power plant: 核電站

(來源:VOA 編輯:Julie)

上一篇 : Top 5 Songs for Week Ending April 23
下一篇 :

 

分享到

中國日報網(wǎng)英語點津版權說明:凡注明來源為“中國日報網(wǎng)英語點津:XXX(署名)”的原創(chuàng)作品,除與中國日報網(wǎng)簽署英語點津內(nèi)容授權協(xié)議的網(wǎng)站外,其他任何網(wǎng)站或單位未經(jīng)允許不得非法盜鏈、轉載和使用,違者必究。如需使用,請與010-84883561聯(lián)系;凡本網(wǎng)注明“來源:XXX(非英語點津)”的作品,均轉載自其它媒體,目的在于傳播更多信息,其他媒體如需轉載,請與稿件來源方聯(lián)系,如產(chǎn)生任何問題與本網(wǎng)無關;本網(wǎng)所發(fā)布的歌曲、電影片段,版權歸原作者所有,僅供學習與研究,如果侵權,請?zhí)峁┌鏅嘧C明,以便盡快刪除。

中國日報網(wǎng)雙語新聞

掃描左側二維碼

添加Chinadaily_Mobile
你想看的我們這兒都有!

中國日報雙語手機報

點擊左側圖標查看訂閱方式

中國首份雙語手機報
學英語看資訊一個都不能少!

關注和訂閱

本文相關閱讀
人氣排行
熱搜詞
 
 
精華欄目
 

閱讀

詞匯

視聽

翻譯

口語

合作

 

關于我們 | 聯(lián)系方式 | 招聘信息

Copyright by chinadaily.com.cn. All rights reserved. None of this material may be used for any commercial or public use. Reproduction in whole or in part without permission is prohibited. 版權聲明:本網(wǎng)站所刊登的中國日報網(wǎng)英語點津內(nèi)容,版權屬中國日報網(wǎng)所有,未經(jīng)協(xié)議授權,禁止下載使用。 歡迎愿意與本網(wǎng)站合作的單位或個人與我們聯(lián)系。

電話:8610-84883645

傳真:8610-84883500

Email: languagetips@chinadaily.com.cn