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Glucose has to get into cells, that's the main source of energy source that cells use, metabolism of glucose.
但葡萄糖又必须进入细胞,因为它是细胞能量的主要来源,即通过葡萄糖代谢产生能量
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and use things such renewable energy, putting up wind and solar and biomasses, et cetera,
推广可再生能源的使用，推广风能，太阳能，还有生物质能等等新能源的使用，
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So we can use an equation to relate the incident energy and the kinetic energy to the ionization energy, or the energy that's required to eject an electron.
因此我们可以用一个公式将入射能量,与动能和电离能，就是发射出一个电子所需要的能量关联起来。
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It is essentially equal to internal energy for condensed systems, but when you look in the books sometimes they will use this term.
它与内能是相同的,在凝聚体系中，在你看书时有时你会发现,它们会这样使用。
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Because muscle can use and frequently is using glucose as a source of energy.
因为肌肉细胞可以利用糖分,通常将糖作为能量来源
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Okay, so the body has a way of metabolizing and making use of the food such that you can get energy or nutrients from it.
对的,身体可以代谢并利用食品,从中获取能量和营养
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to put in place policies that incentivizes people to use things such as energy efficiency
他们制定了一些政策，鼓励人们使用能效高的产品，
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So I am going to go and I am going to look for something that has an energy of 13.6 electron volts holding it in place, and I am going to use a flashlight with 12,400 electron volts.
所以我将去,找一些东西,有13。6电子伏特的东西,将它固定在某个地方,我要利用12。400电子伏特的电子源。
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And we are going to use the Pauli Exclusion Principle and we are going to use the fact that we fill from lower energy to higher energy.
我们将会用到泡利不相容定律,而且我们准备利用这个事实,那就是我们从低能级到高能级填充。
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So, if you use a black lamp or something and you excite something up to a higher energy level and then it relaxes back down to its lower energy state, it's going to emit a new wavelength of light, which is going to be visible to you.
如果你用一个紫外灯或别的,东西把某种分子激发到,更高的能级，然后它会掉回,到低能级，它就会释放,一个新的波长的光,这个光是可见的。
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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。
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Now what I want to do is take you exactly to this place where we are right now, where we see energy levels and electron filling, but I want to start all over again and I want to use a totally different approach.
现在我想做的是带你们,到达我们现在所处的地方，我们能看到能量级和电子分布的地方，但我想重新开始,而且用一个完全不同的方法。
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Well, if I want to look at this, I want to have very accurate capabilities in terms of the energy that I use, the light that I use.
嗯，如果我想看看这个，我得有精确的观察能力,根据我用的能量，我接收的光。
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Well, we can't guarantee with UV light we'll have enough energy to eject every single electron, so that's why when we use x-rays, they're higher energy, you can pretty much be guaranteed we're going to eject all of those electrons there.
好，我们不能保证紫外光有足够的能量,激发出每一个电子，所以我们要使用，X，射线，它的能量更高，你可以非常确定,我们可以激发出其中所有的电子。
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And so we are going to use that in order to construct some energy level diagrams.
我们就准备使用它,来建立一些能级图。
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Why don't you use something that has much lower energy?
为什么你不用一些,能量更低的东西呢？
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