Light waves from an object speeding away from you will stretch into longer wavelengths.
VOA: special.2009.04.29
Let's go back to considering the wavelengths of different objects. We considered a baseball, but let's also think about now an electron.
我们来重新考虑不同物体的波长,我们刚才考虑了棒球,现在来考虑一下电子。
And if it is going to be a standing wave then this must be an integral number of wavelengths.
如果这有个驻波的话,那么周长就是个整数。
He says water also holds some of the major wavelengths that identify asbestos.
VOA: special.2009.11.17
So, if something cycles through five wavelengths in a single second, we would just say that the frequency of that wave is five per second.
如果一个东西在一秒,内经历了五个波长,我们就说这个波的,频率是每秒5次。
The mapper is a spectrometer, a device that measures reflected light wavelengths.
VOA: special.2009.09.30
The body is having all sorts of light bounce off my eyes of various wavelengths.
身体可以通过不同的,波长把光线反射进我的眼睛
He says they depend on a limited number of radio wavelengths.
VOA: special.2010.01.26
So I just wanted to address that quickly before we move on, and actually address another thing about dealing with wavelengths of particles that sometimes comes up.
在我们继续之前我要先更正一下,实际上是更正有时我们会碰到的,另一个对待粒子波长的问题。
The Mapper is a spectrometer, which measures reflected light wavelengths.
VOA: special.2009.12.30
I'm sure there's some upper limit as there are to most things, like if we think of wavelengths and different types of light, there is so large that you can get, but you would be approaching that level.
我确信对于大多数事物,都会有一个上限,就像我们考虑波长和不同的光时,那个太大了,但是你可以接近那个量级。
The team's sensor devices were set on differing wavelengths.
VOA: special.2009.11.17
I care about you. I wanted to illustrate that this is representing different wavelengths in the visible.
很关心你吧,我要说明一下,在视觉上,它们代表了不一样的波长。
What he did was coined this. But he found that by taking the reciprocal of the wavelengths, you have four numbers, he took the reciprocals of those wavelengths and found that they fit a numerical sequence.
这些都是由他所做的一切得来的,但是他发现通过取波长的倒数,你有四个数字,他取了这些波长的倒数,发现它们构成了一个数列。
So, that's for Matsuzaka, and even if you don't memorize all the wavelengths for all the pitchers.
所以,那是对于松阪的情况,即使你没有记住,所有的投手投出球的波长。
So this is, first of all, even just on an absolute scale, this is way, way larger than the wavelengths we're talking about for baseball.
首先,即使在一个绝对标度下,棒球的尺寸也,远远地大于它的波长。
I have to have a whole number of wavelengths to get around the circumference.
我必须要有个关于波长的总体数字,测量周长。
So it turns out that we can, in fact, use the energy levels to predict, and we could if we wanted to do them for all of the different wavelengths of light that we observed, and also all the different wavelengths of light that can be detected, even if we can't observe them.
事实上我们可以用能级预测,而且如果我们想的话,我们可以,对所有观测到的光的波长预测,也可以对所有探测到的光预测,即使我们看不到它们。
He has the wavelengths of those four numbers.
他有那四个数字的波长。
You'll see light coming out, but it's, of course, going to be bulk light -- you're not going to be able to tell the individual wavelengths.
你会看到有光出来,但当然这些光是混在一起的,你不能看到每个单色光。
You have negative wavelengths.
你得到了负的波长。
And what you see when we see it with our eye, which is all the wavelengths, of course, mixed together, is whichever those wavelengths is most intense. So, when we looked at the individual neon lines, it was the orange colors that was most intense, which is why we were seeing kind of a general orange glow with the neon, which is different from what we see with the hydrogen.
当你们用眼睛看时,当然看到的是全波长,是混在一起来,看到的是最强的那些波长,当我们看单个氖谱线时,橙色是最强的,所以我们看氖光整体是橙色的,这和氢气是不一样的。
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