Einstein did not do experiments on light beams.

爱因斯坦没有做过光束实验。

Doctor Lopotko says the light beam used by the device is safe.

Lopotko医生说该设备使用的光束是安全的。

What would it be like to travel as fast as a light beam?

像光一样快地运动会是什么样子？

That light beams in you.It tells your brain don't secrete melatonin yet.

这些光子流让大脑不要产生褪黑素。

And they use electron beams instead of light beams to visualize the image, which diffract a lot less.

它们使用电子束而不是光束来可视化图像，衍射要少得多。

This effect is difficult to understand for anyone who has never seen light beams so sharply defined on shore.

人们1只在陆地上看见过这种一道道的十分辉煌的白光，对于电光在海底下的作用，实在不容易了解。

The synchrotron light beam confirmed that Chinese purple and Egyptian blue shared all the same ingredients with two exceptions.

同步光束证实了中国紫和埃及蓝拥有很多相同的成分，但有两个例外。

Just holes in the ceiling with the light beamed through on to the tables.

天花板上只有几个洞， 光线直射到桌子上。

It was dark, and a cold neon light beamed a narrow ray across my bed.

天很黑，寒冷的霓虹灯在我的床上发出一道狭窄的光线。

But as Ibn al-Haytham studied this light beaming into his little dark chamber, what he found was going to change science forever.

但是当伊本·阿尔·海瑟姆研究这些射入他黑暗小房间的光时，他的发现将永远改变科学。

They devised a highly focused, but still energy-efficient light beam, by starting with something that's already a highly focused beam: a laser.

他们通过高度聚焦的光束——激光，发明了一种高度聚焦且节能的光束。

The resulting light looks less like a traditional LED and more like a computer screen that can emit a highly focused light beam.

由此产生的光看起来不像传统的LED光，而更像是可以发射高聚焦光束的计算机屏幕。

Years ago, when a young boy was 16 years of age, he asked a dumb question, " Can you outrace a light beam? "

多年前，当一个小男孩 16 岁时，他问了一个愚蠢的问题，你能超越光束吗？

I said, 'Where's Emmy? ' It was then that Morgan, 31, spied the light beam that meant the door to the backyard was ajar.

“我说，‘埃米在哪儿? ’”就在这时，31岁的摩根发现了一束光，这意味着通往后院的门半开着。

And he's sitting in his dark room and the only thing he had to entertain him was light beaming in through a tiny hole.

他坐在他黑暗的房间里，唯一能让他开心的就是光线能从一个小洞照进来。

We passed a barrier of dark trees, and then the facade of Fifty-ninth Street, a block of delicate pale light, beamed down into the park.

我们经过了一排黑黝黝的树，然后五十九号街的高楼里一片柔和的灯光照到下面公园中来。

The more massive an object is, the more gravity it has, the more it warps space, and the more it can warp the path of a light beam.

一个物体的质量越大，它的引力就越大，它对空间的扭曲就越多，对光束路径的扭曲也就越多。

This treatment is called stereotactic radiosurgery, and those light beams are beams of radiation: their task is to destroy tumors by gradually scrubbing away malignant cells.

这种治疗称为立体定向放射外科手术，那些光束就是辐射束：它们的任务是通过逐渐清除恶性细胞来摧毁肿瘤。

Dr. Lopotko says the light beam used by the device is safe. Researchers will now test the device at a hospital in Houston that cares for patients infected with malaria.

Lopotko 博士说该设备使用的光束是安全的。研究人员现在将在休斯敦一家治疗感染疟疾患者的医院测试该设备。

So recently, there was a new development called LIDAR, and this is a new class of cameras that use light beams to build up a three-dimensional model of the environment.

最近，出现了一种新的发展， 称为激光雷达，这是一种新型相机， 它使用光束来建立环境的三维模型。