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Now, the coefficient that relates the amount of heat in to the temperature change is obviously going to be different for these two cases.
在这两个例子中,很显然联系热量和温度变化的系数,是不一样的。
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I was talking to friends today and I'm amazed to see how everything changes in the world.
我今天跟朋友谈话，对这世上一切的变化很惊讶。
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That's a simple thing and it's so very different depending on the time of a year when you do it.
这很简单，而你所看到的,也根据季节的不同而有所变化。
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This is a point that is often confusing, because you can think, well maybe I could calculate what the internal pressure is even for this very rapid process.
这一点可能让你们很困惑，因为你们可以想象这个过程，我也可以计算在这快速的变化中,内部压强是多大。
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One way to think about this intuitively if the derivative is very large the function is changing quickly, and therefore we want to take small steps.
关于这个方法很直观的一点想法是,如果导数非常大,函数也就变化的非常快，因此我们想一小步一小步的来。
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So we'll focus on the bass and we'll try to sing the bass, and if we find that in singing the bass our voice is not changing, probably the harmony hasn't changed.
现在把我们的注意力放到低声部上，尽量唱出低声部，如果在唱的过程中我们觉得自己的声音没有变化，那和声就很有可能没有改变。
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Now these were important changes because humans of course can-- are omnivores and can eat both plants and animals, and therefore, the ability to secure nutrients from these different sources became very appealing to humans.
这些是很重要的变化,显然人类现在,是杂食动物,能够进食植物和动物,因为营养来源的多元化,对人类来说很重要
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I'm not sure how much this gonna be covered in the course, but I'm very interested in the way films are recieved by audience and the shock value that film can have be acceptable in film and through time how it changes.
我不知道这门课,会多大程度上和这个话题相关，但是我对此,电影被观众接受的方式和带给观众的冲击,和电影是如何随着时间不断变化的,很感兴趣。
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It's useful to have the average acceleration, which you can find by taking similar differences of velocities.
平均加速度也是很有用的,你可以用类似方法,取速度的变化量求出来
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The second part of the question dealt with the changes in our exposure to foreign assets and that's an area that we've been very interested in.
第二个问题是关于,我们在国外资产投资上的变化,这一直是我们很感兴趣的领域
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I mean, you have a very dynamic business sector here. You know, it's always changing.
这儿有一个很动态的商业行业。它一直在变化。
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In Canada you wait ten weeks for MRI s wrong with you, now a lot of things can happen in ten weeks and many of them are very bad.
在加拿大你得等上10个星期,核磁共振的工作人员,才能告诉你病因，to，find，out，what’,病情会在10周内变化,情况可能会很糟糕。
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He's doing what he can, but change will be slow.
他在做他所能做的一切，但是变化却很缓慢。
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And the motivation for choosing a pair like that is easy to see, if we look at our condition for spontaneous change or general condition.
我们这样选择的动机,很明显，如果考察我们所考虑的自发变化的条件,或者更一般的条件。
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Often, for a particular state change, it is easy to calculate two of these, but not the third.
对于一些特定的状态变化，它们中的两个很好计算，但是第三个往往不容易计算。
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Now we'll go back further than 10,000 years to talk about the history of food, but in those--but at 10,000 years ago several very important changes happened that have shaped to a great extent what our modern relationship with food is.
让我们回到一万多年前,来讨论饮食史,但是,一万年前,发生了一些很重要的变化,这些变化很大程度上塑造了,现代人类与食物的关系
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You could take weights on people measured over a period of many years and look at the variability over time in weight and then link it to things like heart disease and cancer, and I'll come back later and talk about the results of that particular study.
我们还可以得到人们很长一段时间里,每年的体重数据,观察体重随着时间变化的变动,并将观察结果与心脏疾病和癌症联系起来,我等一下会告诉大家这项研究的结果
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It's well insulated. Heat is not going in or out adiabatic. q is equal to zero.
绝热性很好，热量不会变化,是绝热的，Q等于零。
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Delta u, delta H, familiar state functions, q w changes in their values, q, w, heat and work.
U，△H，很熟悉的态函数，它们的值在变化；
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Now these changes, these human evolutionary changes, have created some very interesting metabolic things inside our bodies.
而今,这些改变,这些人类演化造成的变化,在人体内产生了一些很有意思的代谢过程
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So even if, on average, the stock is expected to not move at all from where it starts, some stocks will be expected to just trundle along without much change, not very volatile.
所以即使平均而言，股票应该是不会,和开盘的时候有什么区别，有一些股票可能会,没什么变化，不是很反复无常。
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In fact, it's lower than the correlation of income changes, which is surprising.
事实上，比收入变化相关性还低，这很奇怪。
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But overall, those changes can be pretty helpful.
但整体来说,这些变化都是很有益的
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