To the astonishment of the entire world, the neutrinos clocked in 60 nanoseconds sooner than a light beam traveling the same distance would have done.

他们记录到的中微子的行驶时间要比光线行驶相同距离提早了60纳秒，从而使整个世界为之震惊。

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Because light travels in a straight line through the contours of space-time, a light beam will curve where space-time curves, this curving was first measured in 1919.

因为光沿时空走直线，所以光线在时空弯曲的地方会弯曲。这现象在1919年首次被观测到。

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When the laser hits the photovoltaic device, the photons in the light beam are converted to electricity in the same way that solar cells convert sunlight into electricity.

当镭射光击打到光电装置上，光束上的光电子就会转化为电能，就像太阳能电池板把太阳能转化为电能。

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This intense heat they project in a parallel beam against any object they choose, by means of a polished parabolic mirror of unknown composition, much as the mirror of a lighthouse projects a beam of light.

VOA: special.2010.09.01

So, what we would expect is that there is a relationship between intensity in kinetic energy because it was understood that however intense the light was, if you had a more intense light, it was a higher energy light beam.

光强和能量之间,应该有一定的关系,因为在我们的理解中,不管光强是多少，光的强度越大,光束能量越高。

麻省理工公开课 - 化学原理课程节选

And this is a very fast speed, of course, it's about 700 million miles per hour. So, one way to put that in perspective is to think about how long it takes for a light beam to get from earth to the moon. Does anyone have any guesses? Eight seconds, that sounds good.

当然这是一个非常快的速度，它大约是每小时7亿英里,为了更形象化，我们,看看光从地球到月球,需要多少时间，你们猜猜是多少？,8秒，猜的不错。

麻省理工公开课 - 化学原理课程节选

That information leaves the phone traveling as a light beam moving through fiber optic networks.

CNN: Surfing at the speed of light

This technology relies upon a light beam that is shot at an angle through a sensing chamber to a receptor.

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His quest began in 1895, when as a 16-year-old he imagined what it would be like to ride alongside a light beam.

NPR: Einstein: Relatively Speaking, a Complicated Life