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Three scientists in the United States won the Nobel Prize in Chemistry on Wednesday. The three won for their discovery of quantum dots, a technology widely used today to make displays for electronic devices and medical imaging. 

周三，美国三名科学家荣获诺贝尔化学奖。 三人因发现量子点而获奖，量子点是一种当今广泛用于制造电子设备和医学成像显示器的技术。 

The Royal Swedish Academy of Sciences awarded the prize to Moungi Bawendi of the Massachusetts Institute of Technology, Louis Brus of Columbia University in New York, and Alexei Ekimov of Nanocrystals Technology. 

瑞典皇家科学院将该奖授予麻省理工学院的 Moungi Bawendi、纽约哥伦比亚大学的 Louis Brus 和纳米晶体技术公司的 Alexei Ekimov。 

The academy said the three were honored for their work with particles that “have unique properties and now spread their light from television screens and LED lamps.” 

该学院表示，这三人因其在粒子方面的工作而受到表彰，这些粒子“具有独特的特性，现在可以从电视屏幕和 LED 灯中传播光线”。 

LED lights are electronic lights used all over the world, which use energy very effectively. 

LED灯是世界各地使用的电子灯，其能源利用效率非常高。 

Pernilla Wittung Stafshede, a member of the Nobel committee that awarded the prize, said, “We have displays on TVs, in your cellphone, that use quantum dots inside...” 

诺贝尔奖颁奖委员会成员佩尼拉·维通·斯塔夫谢德 (Pernilla Wittung Stafshede) 表示：“我们在电视、手机上都有显示屏，里面使用了量子点……”

Quantum dots are extremely small particles, called nanoparticles. They are said to be about 1/10,000 the width of a human hair. The dots glow blue, red, green or other colors when exposed to light. The color they give off depends on the size of the particles. Larger dots look red, and smaller dots look blue. The color change is caused by the behavior of electrons in these small spaces. 

量子点是极小的颗粒，称为纳米颗粒。 据说它们的宽度约为人类头发的 1/10,000。 当暴露在光线下时，这些点会发出蓝色、红色、绿色或其他颜色的光。 它们发出的颜色取决于颗粒的大小。 较大的点看起来是红色的，较小的点看起来是蓝色的。 颜色的变化是由电子在这些小空间中的行为引起的。