So that you do the experiment, you see the phenomenon, and then you see the visualization that adds things to the phenomenon that you normally can't see that are there whether or not sealed.

因此我们通过做实验，观测到现象，然后看到直观化的过程,它会将你平时看不见的物质,添加到这个现象中,让你感觉它本来就在那儿。

麻省理工公开课 - 媒体、教育、市场课程节选

Every time you do the experiment T in equilibrium with the heat bath at T, v2 you'll get the same p2 and V2.

与热库相接触的每次实验中,达到热平衡后的温度都是，压强都是p2，体积都是。

麻省理工公开课 - 热力学与动力学课程节选

For example, one of the experiments we do is measure the magnetic field of current coil, and after we do the experiment, we all have a passive visualization that shows the same experimental set-up, except we add to that.

比如，我们做的一个实验就是,测量电线圈的磁场，在我们做完实验之后，我们都感受到了一个直观化的过程,它展现了同样的实验过程，只是那是我们加的。

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So, we could also plot the number of electrons that are ejected as a relationship to the intensity, so that was yet another experiment they could do.

我们还可以画出出射,电子数和光强的关系，这是他们做的。

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What must this experiment have the potential to do, to be a valid scientific experiment?

实验必须有做什么的能力,才能被称为一个有效的科学实验呢？

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But before we give the reasons let's do an experiment of Mill's claim.

但在给出理由之前,先对穆勒的观点做个实验。

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Because of that you can do the following experiment, and it's a simple experiment, it's simple to understand, but the concept is very important so I encourage you to think about it and make sure you understand it.

我们可以做一个实验,这是一个非常简单容易理解的实验,但是这个实验验证的概念非常重要,我希望你们能够仔细思考,并且能够掌握

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So hopefully, the first experiment he did, which I know that they certainly did do was maybe it's just background noise, right?

做的第一个实验，我相信他们肯定,是这样做的？

麻省理工公开课 - 化学原理课程节选

How do we go from that experiment to H the terms that we're trying to get, these slopes.

我们怎样从实验得到我们想要的量？,记住，我们想要得到Δ

麻省理工公开课 - 热力学与动力学课程节选

In fact, we'll do the whole experiment ourselves minus the radioactivity in just a minute, so we'll be able to answer that question for you.

来算一下，事实上等会儿,我们自己会把，整个实验都做一遍。

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OK, so now we're going to do the same kind of experiment, but irreversibly. An irreversible adiabatic.

现在来在,不可逆的条件下，完成相同的实验。

麻省理工公开课 - 热力学与动力学课程节选

Joule actually did this experiment, and he observed that for the gas expansions that he could do, that the temperature did not increase measurably.

事实上焦耳的确做了这个实验，他做到了,他能达到的最好实验要求，发现在可测量范围内没有观察到温度上升。

麻省理工公开课 - 热力学与动力学课程节选

And, of course, all that's left is this positive pudding. So that's not going to do anything either. And what he found when he did this experiment, was that the count rate with still 132 000 counts per minute.

剩下的是带正电的布丁,也不会产生什么影响,结果他实验上观测到,计数器测得每分钟132000下,所以到目前为止,他可以说实验。

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We have 266 ping-pong balls, and we need someone, hopefully you, to be some radioactive material that are going to be emitting these ping-pong balls. And when the time comes, in just a minute, I'll ask the TAs to come down and hand these out very quickly to you, so we can do this experiment.

你们有些人那天，看到我在办公室数乒乓球，我们需要几个人,希望是你,来作为放射材料，放射这些乒乓球,等会我会让助教,把这些球发给你们。

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Sam All right. So, we'll move this up to the front in just a minute, but I'm going to explain how this experiment works and we'll do the calculation first before the excitement breaks out.

好的，这是她的女儿,被背带背她在胸前，这是Patti，Christie博士，好的，我们等会,会把它移到前面,但我要先解释下。

麻省理工公开课 - 化学原理课程节选

So in this experiment here, delta p is less than zero. You need to have this whole thing greater than zero. So delta T is less than zero as well. So if you're below the inversion temperature and you do the Joule-Thomson experiment, you're going to end up with something that's colder on this side than that side.

所以在这个实验中，Δp小于零,这全部都大于零,因此ΔT也小于零,所以如果在低于转变,温度的情况下做焦耳-汤姆孙实验,最后的结果是,这边的温度比这边低。

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