a beam of light

基本解釋

Can we skirt Einstein's theory of special relativity and travel faster than a beam of light?
我們能否繞過愛因斯坦狹義相對論的理論使得移動(dòng)速度超越光速？
In a unit of The Way Things Work, they try to inhabit the minds of scientists devising a pathway for a beam of light to reach a target.
在“自然規(guī)律”的課程里，他們試著想科學(xué)家那樣去思考來設(shè)計(jì)一套裝置來控制光線的（折射反射）軌跡，最終使光線射向規(guī)定的目標(biāo)。
And Grier should know: he designed his own tractor beam and built it, demonstrating for the first time that a beam of light can tug objects over long distances.
因?yàn)樗O(shè)計(jì)并制造了他自己的牽引光束裝置，并且用他的裝置第一次證明了光束可以遠(yuǎn)距離拖動(dòng)物體。

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.
So this gives you a little bit of an idea of just how many individual photons there are in a laser beam of light. This is a huge number of photons.
這個(gè)給你們一點(diǎn)思路關(guān)于,一個(gè)激光束有多少獨(dú)立的光子,這是一個(gè)巨大的光子數(shù)目。
麻省理工公開課 - 化學(xué)原理課程節(jié)選

Channelling Grace Kelly, she inhabits the stage like a beam of light, rendering everyone else as hapless and transfixed as moths.
ECONOMIST: Two excellent productions of an enduring play
To measure the refractive indices of different parts of a cell they use a technique called interferometry, which involves splitting a beam of light in two.
ECONOMIST: Microscopy