So what's going on is taking what is a unity, and pulling apart that unity to see the diversity of this early Christian movement and these documents.
所以我们要做的是把一个整体,拆分开,看看早期基督教运动的差异,及这些文本。
so it's a big commitment and one of Brown's best and most successful sports, so, yeah.
所以要很投入,这也是布朗最好和最成功的运动之一,就这样。
The way we like to do that is to tap into the region of the brain called pre-motor cortex.
我们要做的是接入大脑,一个叫做运动前区皮质的区域。
But life happens, stuff comes up with sports, with student groups, with elements and the like.
但是生活还是要继续,诸如运动,社团,等等。
But Aristotle used to think that if you want something to move, there has to be some agency making it move.
但亚里士多德认为,如果要让物体运动,那就必须有某种作用让它运动
The first is this era, of the 1820s, '30s, '40s and '50s, Antebellum America, exemplified most obviously by the anti-slavery movement, which is where we're going to get to as we leave today.
第一个时期,是十九世纪二十年代,三十年代,四十年代和五十年代,内战前的美国,废奴运动就是其典型,这是我们今天下课前要弄明白的
Even if I'm talking business, I'm going to relate it to sports first.
即使在谈业务的时候,我都要先把它和运动扯上关系。
If you decide to raise your hand, those are motor neurons telling the muscles what to do.
如果你要举手,这些运动神经元会告诉肌肉该做些什么
Or a football player--when you're running down the field, why did you go to this way instead of that way ? when you're running down the field?
或者是问一个橄榄球运动员--当你在操场上奔跑时,你为什么要往这边跑而不是那边呢,当你在操场上跑的时候?
In other words, we said that in intellectual history, first you get this movement of concern about the distance between the perceiver and the perceived, a concern that gives rise to skepticism about whether we can know things as they really are.
换言之,我们曾说过在思想史上,首先你要知道,关注感知者和被感知者之间距离的运动,这种关注会让我们怀疑,自己是否弄清楚了事物的本来面目。
so I know the skills that the gymnasts are going to perform
所以我知道体操运动员要表演的动作,
c We know it's very specific for light because in this equation is c, the speed of light. So any time you go to use this equation, if you're trying to use it for an electron, just ask yourself first, does an electron travel at the speed of light?
我们知道它只对光适用是因为在这个方程里有,光速,所以下次你们用这个方程前,如果你们要把它用到一个电子上,先问问你自己,电子的运动速度是光速吗?
I will say this. What we call compound movements, big movements.
要我就这么建议。我们所说的复合运动,大动作。
and the people that play it are very, very flexible.
而且玩这项运动的人身体要非常非常灵活。
I feel like exercising.
我想要做运动。
One, we can train them to perform these elaborate eye and arm movement tasks as you are seeing here I will describe.
第一,我们可以训练他们去完成眼睛和手臂运动等精细的动作,正如我要介绍的那样。
So you should know when you look at a graph like this what it's doing.
因此当你看到这样一个图表时,要知道它是怎样运动的
What this does then is it paralyzes you because your motor neurons-- You send the command to your arm to stand, to lift up.
结果就是它能使你瘫痪,因为你的运动神经元,你想要举起手臂
What's your plan for measuring acceleration if some little thing is moving?
如果某个小物体在运动,你要如何测量加速度
So what we would like to do is to describe what the object does by drawing a graph of time versus space and the graph would be something like this.
然后我们要做的就是描述这个物体的运动,通过画一个"x-t"图,画出来的图就像这样
The next difficult thing is to consider motion in higher dimensions.
更难的就是,要考虑更高维的运动
when it does this, it's crossed the origin and is going to the left of the origin.
当它这样运动的时候,就经过了原点,要运动到原点左边
And that's the following. Let's take a particle that is moving in the x-y plane, so that at one instance-- sorry, let me change this graph-- is here--oh, this is bad.
接下来,我们来看一个物体,在 x-y 平面内运动,在这个例子中,对不起,我要重画一下这个图,在这里,这画得不好
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