And that the fact that it split into two was telling them that there must be some new property to the electron, and what we call that now is either being spin up or spin down.
它能一分为二的,事实告诉我们,电子一定有某种新的性质,我们叫它自旋向上或者自旋向下。
Deflection up and deflection down indicating that there was something strange that had yet to be accounted for.
发生了偏离,这就说明还有一些奇特的现象,需要我们去解释。
Science can be hands-on, you might be down at the lake picking up algae and studying them or something, that would be hands-on.
科学研究也是要动手的,你可能会到湖底,收集水藻并研究它们,这就是动手操作
You might have some people up here who are saving and other people down here who are dissaving and the production would be operating at the middle.
有人多储蓄,落在这点上,有人不储蓄,落在这点上,社会总生产力则在它们之间
That means, if you are going in a plane and you throw something up in the air, it seems to be going up and down to you.
也就是说,如果你在飞机中,你向空中扔出一物体,它也许会相对于你上下运动
And so the whole definition of what a recession is is evolving and... we could be in a similar kind of situation where job...number of jobs goes up or down and maybe output doesn't.
因此,经济衰退的完整定义,不是一成不变的。,有时可能出现这种情况,失业率也会上升或下降,而国民产量并无波动。
And, in any arbitrary crucible full of molten silver, half of them are going to be spin-up and half of them are going to be spin-down.
并且,在任一个浇满了熔银的坩埚中,银原子中的电子一半是向上转,另一半是向下转。
And since we don't know the absolute up and down in the universe, it is possible that some of the electrons may be spinning up.
由于我们在宇宙里,并不知道什么是绝对的上和下,所以说上面的现象很有可能是,一些电子向上自旋引起的。
So that would mean that the Fed should be raising interest rates to try to tighten up the economy and bring the inflation rate down.
所以,这意味着,美联储应该提升利率,以试图加强经济,并且将通货膨胀率降低。
There is this building and it's going to be 15 meters high, and I'm going to throw something and it's going to go up and come down.
这是一栋大楼,它有15米高,我会抛出某个物体,它将先上升后下降
Then you guys know, you just told me, acceleration is -9.8, We call it "minus" because it's accelerating down and up was taken to be the positive direction.
然后你们都知道,你告诉我,加速度是-9.8,我们取负号是因为加速度方向朝下,而正方向为竖直向上
You are pushing down with the weight mg, and the floor has got to be pushing up with the mg, because the spring is not going anywhere.
你向下的作用力是重力 mg,然后地面向上的支持力也是 mg,因为弹簧现在根本没动
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