I thought of Ed Dunkel's ghost on Times Square. I was delirious.
我想起了埃迪·邓克尔那在时代广场游荡的鬼魂。
and I'd only been in Times Square which really isn't what New York is like.
我当时只是去了时代广场,但它却不能展现纽约的真实面貌。
I'm selling tickets to a comedy show at the Times Square Art Center,
我在时代广场的艺术中心卖喜剧表演的门票,
Times Square... Well, Times Square has gone through a lot of changes.
时代广场……好吧,时代广场发生了许多变化。
Well, I'm going to get back, let's just draw a bigger square than usual that's roughly four times the size.
嗯,返回的是,我画一个更大的方形,大致上是4倍的大小。
60 If we look at 435 times 160, take the square root of that, we will end up with 264 kilojoules per mole, which sensibly lies between these two values.
35乘以,取平方根,我们会得到264千焦每摩,很合理地落在两数值之间。
It varies with the square of distance so it goes - in order to go twice as far it takes four times as long.
速度是与距离的平方正相关的--,如果要扩散两倍的距离要多花四倍的时间
The most important thing to know about Times Square:
要了解时代广场,最重要的一点是:
Now you have to know from elementary calculus that v times dv/dt is really d by dt of v square over 2.
根据初等微积分知识你们得知道,v乘以dv/dt其实就是d/2)/dt
At every point of time your mortgage balance is equal to your mortgage payment times that square bracketed thing, where T is the amount of time you have left.
在每个时间点的抵押贷款余额,都等于每月偿还额乘以,方括号内的值,T是剩余年份数
So, if we just rearrange this equation, what we find is that z effective is equal to n squared times the ionization energy, IE all over the Rydberg constant and the square root of this.
我们可以发现有效的z等于n的平凡,乘以电离能除以里德堡常数,这些所有再开方,所以等于n乘以,除以RH整体的平方根。
But since the 1980s they've kind of cleaned up Times Square
但自二十世纪八十年代以来,他们稍微整顿了一下时代广场。
But to some degree Times Square has lost its original character
但从某种程度上讲,时代广场已经失去了它的本来面貌。
Square of the Planck constant times pi mass of the electron.
普朗克常量的平方,乘以π再乘电子的质量。
As long as we understand that, we can do this cancellation and this says on the left-hand side the change in the quantity v square over 2 is a times the change in the quantity x.
只要我们明白这一点,我们就可以这样做简化,在等号左边,v^/2的变化量,为a乘以x的变化量
We know it's going around in a circle because if I find the length of this vector, which is the x-square part, plus the y-square part, I just get r square at all times, because sine square plus cosine square is one.
我们之所以知道它做圆周运动,是因为我求出了这个矢量的模长,也就是 x 的平方加上 y 的平方,我就得到了它在任意时刻的模长平方,因为正弦平方加余弦平方始终等于1
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