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CNN 新闻:The Secret of Nano Technology(纳米技术揭秘)
时间:2008-9-3 13:11:46  来源:本站原创  作者:echo   测测英语水平如何 | 挑生词: 

英国称,它将对纳米技术进行更多投资。这个名词听起来可能有些陌生,但它已经成为很多人日常生活中的一部分。正如劳伦斯•迈根提现在所解释的,纳米技术的前景几乎是无限的。

注释
1.damp adj.潮湿的       2.particle n. 微粒;粒子
3.virus n. [微]病毒     4.shrink vt. 使变小
5.emit vt. 发出,发射   6.gadget n. 小器具, 小配件
7.brittle adj. 易碎的   8.dissolve vi. 溶解;液化
9.chip n. 芯片

The Secret of Nano Technology

ANCHOR
Britain says it plans to invest more in what’s known as nano technology. The term may sound unfamiliar but it’s already a part of daily life for many. As Lawrence McGinty now explains, the promise of nano technology is almost unlimited.

CORRESPONDENT
If you think nano technology is all in the future, think again. These, for example, are nano trousers; they’re already on sale in the United States. They feel like ordinary cotton trousers but there’s a thin nano layer, which resists spills and stains. So, if you spill your drink, this is what happens, it just runs off. The trousers aren’t even damp.

Nano trousers are just one application of the technology. This is a nano factory producing almost any material you want as very fine nano powders.

PAUL REIP, QINETIQ NANOMATERIALS
There are 50,000 particles in this vial for every person on the planet, that’s all 6.9 billion people.

CORRESPONDENT
There are 350,000 billion particles in this tube.

So nano technology is the science of the very small. But how small is small? Well imagine I was shrunk to a 1,000 times smaller. I’d be about as big as the eye of a fly, but nano is even smaller than that. In fact, much, much smaller. Imagine I was shrunk again, this time 10,000 times. I’d be about as big as a virus, but nano is even smaller than that. You’d have to shrink me another 100 times to get the nano version of me, a billion times smaller than the real me.

Industry is already building devices on that scale. Here in Cambridge they’re making very thin nano layers of a plastic that emits light when electrical current runs through it. The technology will soon be on the market, in mobile phones with very bright, energy-saving displays.

KARL HEEKS, CDT LIMITED
People will see these initially in fairly simple products like mobile phones but ultimately they will be in TV’s, and when the technology moves on to plastic, you’ll have the roll -down TV that you can put on your wall.

CORRESPONDENT
But it’s not just gadgets. This is a new wound dressing. It’s made from silicon, which is normally brittle, but this is flexible.

Magnified thousands of times you can see why: the silicon is full of holes. As this nano-silicon dissolves in the body, it would release drugs to combat diseases.

PROFESSOR ROGER ASTON, SCIMEDIA
Ultimately what will come is a chip that can go into the body, which will release its drugs or a whole variety of drugs.

CORRESPONDENT
The promise of nano technology is almost unlimited. That’s why the government is backing it and the critics fear possible side effects. Lawrence McGinty, ITV News.

纳米技术揭秘

主播
英国称,它将对纳米技术进行更多投资。这个名词听起来可能有些陌生,但它已经成为很多人日常生活中的一部分。正如劳伦斯•迈根提现在所解释的,纳米技术的前景几乎是无限的。

记者
如果你认为纳米技术都是未来的事情,那就再想想。例如, 这是纳米裤子;它们已经在美国出售。它摸上去就像普通棉布裤子一样,但是里面有一个薄薄的纳米层,它能防止液体弄湿或弄脏裤子。所以,如果你把饮料弄洒了,就会出现这样的情况,它只是往下流,裤子甚至都不会湿。
纳米裤子只是这种技术的一个应用实例。这是一家纳米工厂,它几乎能利用细小的纳米粉生产你想要的任何东西。

保罗•莱普,Qinetiq 纳米材料
地球上的每个人相当于这个瓶子里的5万个粒子,而地球上共有69亿人口。

记者
在这个试管里,共有350万亿个粒子。

所以说,纳米技术是一种研究微小物质的科学,但是,多小才算小呢?想像一下,我缩小了1000倍,我将和一只苍蝇的眼睛一样大,但是纳米甚至比它还要小。事实上,要比它小很多很多。 再想像我缩小了,这次是缩小10000倍。我将像一种病毒那么大,但是纳米甚至比它还要小。你必须把我再缩小100倍,才能得到我的纳米尺寸,比真正的我小十亿倍。

工业界已经在制造这种尺寸的装置。在剑桥,他们正在制造非常薄的塑料纳米层,当电流从中穿过时,它能够发光。这种技术很快将会应用于市场,移动电话上将会有非常明亮而且节能的显示屏。

卡尔•希克斯,CDT有限公司
人们最初将会看到,这些装置只应用于非常简单的产品,如移动电话,但最终它们将应用于电视工业。

当这种持术被应用于塑料制品后,你将会拥有一台能卷起来的电视机,可以把它挂在墙上。

记者
但它不只是小摆设,而是一种新型创伤敷料。它是从硅元素中提取的,通常它是易碎的,但这个却有很好的柔韧性。
它被放大数千倍之后,你就能看清为什么会这样了:硅元素里充满了孔。当这个纳米硅在身体内溶解时,它就能够释放出用于治疗疾病的药物。
罗杰•艾斯顿教授,Scimedia
最终出现的将是能进入人体的芯片,它能释放其携带的药物或者一系列的药物。

记者
纳米技术的前景几乎是无限广阔的,这就是为什么政府在支持它,而批评者害怕它有副作用。国际电视新闻,劳伦斯•迈根提报道。

 

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