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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。
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now you have this object which is going to tell you whether other things are in thermal equilibrium now.
现在你有了一个可以告诉你,其他物体是否处于,热平衡的物体。
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I'm asking is that the very same extended-through-time entity as the extended-through-time entity that I used to own. I wonder.
我问的是,现在的这个贯穿时间的物体,是不是当年我拥有的,贯穿时间的物体。
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Therefore, when you divide by the mass to get the acceleration, the response of different bodies is inverse to the mass.
因此,当你拿力除以质量得到加速度时,不同物体的加速度与质量成反比
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Well, if you're implementing a computer that needs to represent information now all you need is something like electricity which can be on or off, on or off.
好吧，如果你正用一个电脑,来表现表达传递信息的功能,你就需要,像电开关一样的物体。
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NO So that the more complete answer to the question is that no, we're never going to be able to observe that because of the uncertainty principle it's not possible to observe a velocity that's this slow for a macroscopic object.
所以这个问题的完整答案是，由于不确定性原理,我们不可能测量到这么慢的,宏观物体的速度，希望这个解释。
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You take an object and you put it here in a cup where the kid can't see it, but it's in the cup.
你将物体放到这里的一个杯子中,婴儿看不见这个物体,但这个物体是在杯子之中的
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It entails separation of an object to that which sanctifies it, which is God; and it involves separation from, in the form of safeguards against, anything that would threaten to remove its sanctity.
它导致了物体和使它纯洁的上帝之间的不同，这也包含着，以预防的形式，物体和会威胁它失去神性的物体之间的区别。
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It allows you to define the concept of a thermometer. You have three objects, one of them could be a thermometer.
从热的物体流向冷的物体,由此我们可以定义温度，我们还可以用它来定义温度计：
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But gravity has a remarkable property that the pull of the Earth is itself proportional to the inertia of the object.
重力有一个显著特征,即地球的引力,与物体的质量成比例
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Or should we think the fundamental thing is the car extended through time ? and sliced up to make car stages?
还是说,根本的部分是贯穿时间的物体,切分成不同的阶段？
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There are many kinds of work. There's electrical work, take the motor, you plug it into the wall, electricity makes the fan go around, that's electrical work. There's magnetic work.
我们复习一下大一,学过的功的概念：,物体在力的作用下，运动了一段距离。
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That means the force you're applying is cancelled by another force, which has got to be the force of friction.
意味着你施加在物体上的力被另一个力抵消了,这个力就是摩擦力
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You need a substance and then that substance has to have a property that changes depending on the heat flow, i.e., depending on whether it's sensing that it's the same temperature or different temperature than something else.
你需要某种物质,它的某种性质,随着热量的流动而改变，也就是说,依赖于它是否感觉到它,与其他的物体处于相同的温度。
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If two object are in the same temperature, and two other object are in the same temperature, then all three must have the same temperature.
如果有两个物体的温度相同，又有另外两个物体的温度相同，那么这三个物体一定有同样的温度。
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Gravity is one force that acts on a body without the source of the force actually touching it.
引力是一种受力物体收到了力的作用,但却没有接触施力物体的力
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So, massless bodies will always have, like a massless rope, equal and opposite forces on the two ends.
所以无质量的物体,比如这个绳子,两边所受的力永远都相等
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When I refer to the car in 1990 I mean to be talking about the entire extended-through-time object.
但我提到1990年的车0,我是想说,整个贯穿时间的物体。
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Now I can measure that, because I pull it by one centimeter and I find the acceleration it exerts on a known mass.
现在就能测量这个力了,因为把弹簧拉伸 1 厘米,我就知道它让一个质量已知的物体产生的加速度
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So, what we are going to study now is a non-living object and we're going to pick it to be a mathematical point.
我们现在所要研究的的,是一个没有生命的物体,我们要把它看作一个数学上的点
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This also tells you that the mass of an object has nothing to do with gravitation.
这也表明,物体的质量与重力无关
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In particular, the things that I say are at rest, you will say are moving backwards at the velocity that you have relative to me.
特别是那些在我看来是静止的物体,在你看来却在后退,后退的速度等于我们之间的相对速度
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And so, they may get visual agnosia and lose the ability to recognize objects.
因此,他们可能患有视觉失认症,从而失去识别物体的能力
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Conversely, if I knew the velocity of this object, I also know what time it is, provided I knew the initial velocity.
反过来,如果我知道了这个物体的速度,我也同样可以知道时间,只要初速度是已知的
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So, for example, if you were trying to study the motion of some object, here is one example.
举个例子,如果你想研究某个物体的运动,这里有个例子
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Again, your common sense tells you, "Look, you are pulling something whose effective mass seems to be 5, the answer is 2."
你的常识会又一次告诉你,"你在拉一个相当于 5 千克的物体,所以加速度是 2 "
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If all you know is the particle is falling under the affect of gravity, that's not enough to say where the particle is, right?
如果你只知道,质点受重力作用下落,那并不足以表明物体的位移,对吧
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And know intuitively that if they move together, they will behave like an object of mass 5 and the acceleration will again be 2.
凭直觉认为既然它们一起运动,那么它们就相当于一个质量为 5 千克的物体,然后我们可以算出加速度为 2
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I'm asking rather in pointing to the 2010 car stage I mean to be picking out an entire extended through time entity. The car.
而我问的是,指着2010年的车,我指的是整辆,贯穿时间的物体，这辆车。
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