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Light was important to the Incas,too,says Torrey, and in another of his favorite photos, inside the Temple of the Sun, he captures the moment when a beam of sunlight marks the changing season.
VOA: standard.2009.12.15
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The Elder Brother is explaining that these angels will: Begin to cast a beam on the outward shape, The unpolluted temple of the mind, And turns it by degrees to the soul's essence, Till all be made immortal.
大哥解释说，这些天使将会：,在身体上投射光束，在心里未受污染的殿堂上投射光束，把它变回灵魂的本质，直到全部人都变成不朽的人。
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And we have a beam.
我们有一个电子束。
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Scientific American magazine says huge lasers turn only about twenty to thirty percent of the energy they use into a laser beam.
VOA: special.2010.09.01
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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.
这个给你们一点思路关于,一个激光束有多少独立的光子,这是一个巨大的光子数目。
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When a Marine gets hit by a laser beam, his weapon gets de-activated.
VOA: standard.2010.04.06
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And so, we've got a beam.
这样我们就能得到一束射线。
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If de Broglie is correct, let's irradiate the nickel crystal with a beam of electrons where the wavelength of the beam of electrons is identical to the wavelength of the x-rays that were used and see what we get.
如果德·布罗意是正确的，那么镍晶体放出,电子光束,电子束的波长,和原来讲过的X光的波长是相等的,再看看得到了什么。
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It is an electron beam. In the 1890s, the latter part of the 19th century a very fashionable word was "ray."
那是个电子束，在十九世纪九十年代，就是19世纪末,一个很时髦的词汇-“光线“
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And then I could put a couple of plates and I could raster the beam so that when I am looking here,the beam goes back and forth about 80 times a second.
然后我放了两个感光片,我可以检测到光束所以,当我观察时,电子束以每秒80次的速度来来回回了。
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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。
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You have a single beam coming in, and you end up with rings.
单个光束进来，以光圈的形式出去。
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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。
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So rather than calling this an electron beam, this was called a cathode ray.
因此我们最好别叫它电子束，而是阴极射线。
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There is no way that you could irradiate a crystal of nickel with a single beam of x-rays and get that circular ring pattern if the electron beam were behaving as a particle beam only.
没有什么其他的途径,可以让镍晶体发射,单束X光来,继而得到环状图案,如果电子束,是以粒子束形式出现的。
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