Then it was put on overland company stage coaches light wagons pulled by four or six horses.
VOA: special.2009.05.28
We've got wind, we've got a primeval chaotic, Watery mass or deep, and then surprise, There's just a word,"Let there be light."
我们有了气流,有了原始的混乱,狂放的水流,混沌,但奇怪的是,只有一句话,“要有光“
And then we have c, the speed of light, 2.998 times 10 to the 8 meters per second.
然后我们知道光速等于,2,998乘以10的8次方米每秒。
He could turn off a light and then jump into his bed before the room got dark.
VOA: special.2009.01.24
And then confronted with a new case, we found ourselves reexamining those principles, revising each in the light of the other.
当我们面临新的情况时,我们重新检验这些原则,根据新的情况修正这些理由或原则。
Rudolf was begining to feel trouble, then he saw a light house less than a kilometer's away.
VOA: special.2010.05.08
And then he just takes that narrow column of light and he admits it to a prism. And what the prism does is takes a tiny, tiny difference in wavelength and refracts it through a different angle.
他只取了那个窄光柱,然后把它对准一个棱镜,棱镜所做的就是,测量出波长的细微差别,然后从不同的角度测定它的折射度。
At the same time he heard, or imagined he heard,a light, soft step and then another.
VOA: special.2009.10.31
Do you think I should neck or not? I shall not enter the kingdom of heaven anyway so I don't see what difference it makes.'" And then she writes back, Mary Brittle: "Dear Sabbath: Light necking is acceptable, but I think your real problem is one of adjustment to the modern world.
你认为我是该做还是不该做,我反正都上不了天堂了,因此,我认为做不做都无所谓,之后她给她回信了,玛丽-巴瑞特,亲爱的萨巴斯,你的做法是可接受的,但我认为,你真正的问题是无法融入现代社会。
Then she was able to capture the sharp difference between light and dark.
VOA: special.2009.05.10
If I consume Bud Light, then I have to pay for the Bud Light, I think it typically costs less, the price, the raw price is less than Guinness but I also pay an additional cost from the fact that Bud Light, when I drink it, causes me "disutility": we'll put it politely like that.
如过我买百威淡啤酒,我必须要支付百威淡啤酒的价格,我想它会便宜点,原材料的价格比吉尼斯低,但我同样要支付附加成本因为百威淡啤酒,当我喝它的时候,味道一般,我表达得委婉一点
Then she saw a light at the far end.
VOA: special.2010.01.09
So, we'll take a little bit of a step back after we introduce quantum mechanics, and talk about light as a wave, and the characteristic of waves, and then light as a particle. And one example of this is in the photoelectric effect.
等我们介绍完量子力学后,我们要回过头来讨论下光,作为一种波和它的波动性特征,以及光作为一种粒子,其中的一个粒子就是光电效应。
And then I saw a pure white light.
VOA: special.2009.07.25
And what de Broglie said is well, if it's true that light, which has a wavelength can have momentum, then it must also be true that matter, which has momentum, also has a wavelength.
德布罗意说的是,如果光具有波长和动量是对的,那么物质具有动量和波长,也一定是对的。
And every night, late at night, I turned the lock of his door and opened it C oh,so gently! And then, when I had made an opening big enough for my head, I put in a dark lantern, all closed that no light shone out, and then I stuck in my head.
VOA: special.2009.05.16
If I went on and told you what the different incident light was, and what the electrons were ejected with, and then you could look up the ionization energy for the particular different elements, you should be able to actually determine exactly which element it is, but just with the information given, we can only narrow it down to these choices here.
如果我继续告诉大家入射光源是什么,出射电子的动能是多少,那么你可以去查一查,以上各个元素的电离能,这样你就应该能确定,这个元素到底是哪个,但是只凭题目中的信息,我们只能把范围缩小至以上几种元素。
We can plug this in further when we're talking about the visible part of the light spectrum, because we know that for n final equals 2, then that would mean we plug in 2 squared here, so what we get is 1 over 4.
当我们讨论可见光谱的时候,我们可以把这个代进去,因为我们知道n末是等于2的,这意味着我们可以。
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