So, it's Newtonian mechanics, and the reason for this is because Newtonian mechanics does not work on this very, very small size scale.
牛顿力学,因为牛顿力学,在这种很小的尺度下不适用,我们说过,牛顿力学。
These things run for variable amounts of time because they take input, a list of size of some amount.
而这一段的执行时间是可变的,因为它们需要输入一个包含一些元素的列表。
So, the size still for an s orbital is larger than for a d orbital, but what we say is that an s electron can actually penetrate closer to the nucleus.
轨道的尺寸比,p轨道还是要大,但我们说的是s轨道可以,穿透到更接近原子核的地方。
Another way of saying it is, if I, for example, 10 increase the size of the input by 10 10 the amount of time increases by 10.
另一种说法就是,例如,我把输入的规模增加0,解决花费的时间也会增加。
Well, Aristotle and Plato,both sort of theoreticians of the polis each had an idea what's the right size for the perfect polis.
亚里士多德和柏拉图,这两位精于城邦理论的理论家对此各执己见
So, the size of the armies for these megalomaniac wars, these dynastic wars between Austria and France and then they changed partners in 1756, and all of this business.
随着战争的规模也日益增大,各国争相扩军,例如法国与奥地利之间的王朝战争,这两个国家在1756年成为盟友,战争也随之结束了
These are all isoelectronic, they all have the same electron configuration. And we can also think about going back to atomic size for a second.
这些都是等电子的,它们都有相同的电子排布,而,我们还可以再回想一下原子尺寸的概念。
And if I want to move towers, let's say, size 5, from, to, and spare, there are the instructions for how to move it.
比如说五个吧,从这儿到那儿,中间再经过这个多余的柱子周转,关于怎么移动已经有说明了。
So, this is exactly how Rutherford did discover that these particles were present and made this new model for the atom that we now know has both a nucleus, and we know the size, and also has electrons.
他提出了一个,新的原子模型,这里面有一个原子核,和一个电子,原子核的尺寸是知道的。
Serfs who are compelled to work the land, or in some places even slaves, well, they have no incentive, put aside the question even of capacity, to invest capital for the purpose of improving the size and quality of the their crops, their trees, their vines.
那些被强迫耕种土地的农奴,或者是那些在其他地方直接成为奴隶的人,刨除能动性因素,农场主们,没有任何理由投资钱财,去改善他们农作物,果树和葡萄,的种植规模和品质
We did it for silly purposes just to see how big each data type was, but on most systems the size of a char is what?
只是为了很傻的目的,来看看每个数据类型多大,但是在大多数的系统中char的大小是多少呢?
So 1.1 times 10 to the -31 meters is not, in fact, a significant number when we're comparing it, for example, to the length of a ball, or the size of the baseball field.
所以1,1乘以10的负31次方米,事实上并不是一个很重要的数字,举例来说,当它与一个球的长度,或者一块棒球场地对比时。
And towards that end to give you a sense of the size of the support structure in place for this course, this is the size at the moment of CS50's staff inclusive of teaching fellows, course assistants, myself, as well as folks who help with our video production and the like.
为达到这一目标,我们让大家了解下这门课的辅助,在CS50进行的时候,有这么多人会给我们提供辅助支持,其中包括教学研究员,课程助理,我,以及帮助我们制作视频的等一些人。
So, not only did Professor Sayer, who's in the Chemistry Department who put together this contraption for all of you, not only did she magnify the size of these gold nuclei, but she actually had to smoosh all of these atoms closer together then they normally would be.
化学系的Sayer教授把这些玩意放到一起,她不仅把金原子核的,尺寸放大了,还把原子核的间距压缩了,事实上,如果原子核的尺寸有这么大,我们需要另一个大教室,放这个原子核。
应用推荐