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VOA慢速英语:有史以来第一次:科学家使用激光冷却液体

所属教程:Science in the News 更新:12-07
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Universityof Washingtonresearchers say they used a laser to turn hot water into cool water.

华盛顿大学的研究人员声称,他们使用激光使热水变为冷水。

Five engineers from the university are the first in the 50-year history of the laser torefrigerate liquids under normal conditions with light beams.

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This instrument built by UW engineers (from left) Peter Pauzauskie, Xuezhe Zhou, Bennett Smith, Matthew Crane and Paden Roder (unpictured) used infrared laser light to refrigerate liquids for the first time.Dennis Wise/University of Washington

在对于研究激光长达50年的历史中,华盛顿大学的5位工程师首次利用激光光束在日常条件下冷却液体。

The group used a simple approach to the experiment. Lasers are known for producing hot temperatures. The University of Washington says they "essentially ran the laser phenomenon inreverse."

该团队使用简单的方法来进行实验。众所周知,激光器会生产高温。华盛顿大学表示他们在研究的过程中成功地对激光进行了反向利用。

The discovery has a future in the computer and medical fields. Computer interiors could be cooled by lasers. In a medical laboratory, individual cells could be cooled to see how they react. visit the website www.chinavoa.com to get more information!

这一发现在计算机与医学领域有着广泛的应用前景。可以通过激光对计算机内部进行冷却。在医学实验中,单个细胞可以通过冷却来观察它们如何反应。

"Few people have thought about how they could use this technology to solve problems because using lasers to refrigerate liquids hasn't been possible before," said researcher Peter Pauzauskie.

研究人员Peter Pauzauskie 说:“很少有人会想到使用这种技术来解决问题,因为激光冷却液体在这之前是不可能的。”

The cool laser concept can also be used in manufacturing, telecommunications or national defense.

使用激光进行冷却这一概念也可用于制造、电信或国防。

The group has an interest in hearing from businesses or scientists who may have every day applications for the cool laser.

该团队现在对其他那些申请用激光冷却的科学家和企业的想法非常感兴趣。

The findings were published this month in the Proceedings of the National Academy of Sciences.

本月,这项研究结果在美国国家科学院院刊出版。

I'm Marsha James.

我是玛莎·詹姆斯。

Jim Dresbach wrote this story for Learning English. Kathleen Struck was the editor.

We want to hear from you. Write to us in the Comments section or visitour Facebook Page.

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Words in This Story

refrigerate – v. to keep something cold or keep it fresh

approach– n. a way of dealing with something

reverse– adj. opposite to what is stated or considered normal

refrigerate– v. to keep something cold or keep it fresh

telecommunications– n. the technology of sending and receiving signals or images over long distances by telephone, television or satellite

defense – n. the things that are done by a country to protect itself from enemies

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