It is an electron beam. In the 1890s, the latter part of the 19th century a very fashionable word was "ray."
那是个电子束,在十九世纪九十年代,就是19世纪末,一个很时髦的词汇-“光线“
And in fact today, right now, we're going to move back the furthest we go, all the way into the nineteenth century to talk about the early Yeats.
实际上今天,现在,我们会回到很早的时候,直到十九世纪,来谈谈早期的叶芝。
By the 1830s,1840s, there were over 100 men in Charleston, South Carolina alone, making their livings full-time as slave traders.
到了十九世纪三四十年代,仅仅在南卡罗来纳的查尔斯顿地区,就有超过一百个,专职从事奴隶贸易的奴隶交易商
There was in the late 1860s a revival of republican and socialist organization, and of anarchist disorganization, if you will.
在十九世纪六十年代晚期,共和主义及社会主义组织,还有无政府主义组织有所复兴,如果你们愿意这么认为的话
In fact, he actually emphasized a concept that was first stated by a French philosopher Louis Blanc in the mid-nineteenth century.
事实上,他特别看重,一个由法国哲学家路易·勃朗,在十九世纪中期,率先提出的概念。
If you don't have the units, then if you say the answer is 19, then we don't know what it means.
如果没有的话,比如你的答案是十九,那我们就不知道这是什么意思
In other words, Buckle was the avatar of the notion in the late nineteenth century that everything was going to hell in a handbasket.
换言之,十九世纪后期有一种观念认为所有事物都在迅速恶化,而巴尔克则是这种观念的化身。
It's quite spectacular because here in the 1890s we have the apex of the Western classical orchestra, this big, beautiful, powerful instrument.
它之所以雄壮因为在十九世纪九十年代,西方古典管风琴正处于顶峰,这是一种巨大,美丽,有力量的乐器
They also found some stockpiles of the virus from the 1950s that they still had on an Army base in Maryland,I think.
政府也在马里兰军队驻地发现了,从十九世纪五十年代储存到现在的病毒
And after the periodic table was developed in the late 1800's, people didn't understand this quite as well, they took things a little more literally.
在十九世纪后期元素周期表经过发展之后,人们还没有很好地意识到这一点,他们的认识还有些粗浅。
So I would say the tradition goes back to the 18th century not even to the constitution.
我认为这个传统可以回溯到,十九世纪,甚至在宪法出现之前。
What percentage of Americans do you think worked on farms at the end of the nineteenth century?
你们认为在十九世纪末,大概有百分之多少的美国人在农场工作
Archaeologists in the nineteenth and twentieth centuries were stunned to find the ruins and the records of remarkable peoples and cultures--massive, complex empires in some cases, but some of which had completely disappeared from human memory.
十九和二十世纪的考古学家们,震惊地发现了,古代伟大名族和文化的遗迹,有些还是大规模,复杂的帝国遗迹,但也有一些就完全从人类记忆中消失了。
In the nineteenth century the Russian czars are still trying to get there as well.
直到十九世纪,沙皇仍然在想方设法争夺黑海
So this is really the first attempt, way back in the nineteenth century to study a market that's somewhere in the middle, where it happens most markets are there are two firms.
因此这就是它的第一个诱人之处,我们要回到十九世纪,去研究一个介于两者之间的市场,那个年代大多数市场都只有两家公司
I thought I would give you an example from the nineteenth century, which is very important, and again it's public finance.
我想给大家举个十九世纪的例子,很重要的一个案例,又是关于公共财政的。
They were the same size in the 1850s, but Brive gets the railroad and not Tulle, the railroad from Paris.
它们在十九世纪五十年代还是一样大的,但是布瑞福修了铁路,而不是图勒,通往巴黎的铁路
Southerners shared with Northerners a faith in progress, if you breathed the air in American in the 1840s and '50s.
南方人和北方人对发展有共同的信念,十九世纪四五十年代的美国就是例子
By the 1820s, already, within a decade of the War of 1812 and the opening of the frontier, cotton's future seemed limitless.
截至十九世纪二十年代,这其中包括了1812年开战的十年战争,以及边疆的开拓,棉花产业的未来似乎无限
But I think it became, in most ways and in most definitions, a slave society surely by the 1820s or the 1830s.
我认为最主流的定义是,奴隶社会确实起源于,十九世纪二三十年代
And then in the early eighteen twenties, he decided to incorporate this as the main theme of the last movement, the finale of his last symphony.
之后,在十九世纪二十年代早期,他决定将这一段,作为结尾乐章的主旋律,也就是他最后一部交响曲的最终乐章
In the nineteenth century, there was a lot of talk about races.
在十九世纪,有许多关于人种的讨论
Also, we don't have accurate censuses until the 19th century.
况且,直到十九世纪我们才有了,精确的人口普查
So, there's a political mobilization in the late 1860s, and in the beginning of 1870 there's a wave of strikes.
因此,在十九世纪六十年代晚期,掀起了一场政治动员,一八七零年开年,法国便迎来了一场罢工潮
This is down the Rue de Rivoli, which was completed in the 1850s and '60s, and the damage is staggering.
沿着里窝利路,这条路是在十九世纪五六十年代修好的,而军队进入之后造成的破坏是惊人的
And,so,you've got these processes in the nineteenth century, economic processes that you find all over Europe that consolidate the power of the French State, centralized in Paris.
你了解到了,十九世纪的发展历程,经济发展历程,巩固了法国以巴黎为核心的,中央集权统治
Well, archaeologists investigated this carefully, and the French School of Archaeology late in the nineteenth century dug everything up and concluded this was baloney; it was a myth.
十九世纪末期,法国建筑学院的,考古学家仔细调查了这个神庙,他们研究出了很多东西,包括以上说的故事,他们认为完全是个神话
And the evolution of banking in the nineteenth century further consolidates power.
在十九世纪,银行得以发展,并巩固了它的实力
How could you resist a sense of change in 1820s New York?
你如何能抵制变革的意识,如在十九世纪二十年代纽约
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