With the advent of projection in 1895-1896, motion pictures became the ultimate form of mass consumption.
随着1895到1896年间投影技术的出现，电影成为大众消费的最终形式。
When a large body strikes a planet or moon, material is ejected, thereby creating a hole in the planet and a local deficit of mass.
当一个大型天体撞击行星或月球时，物质会被抛射出去，从而在行星上形成一个洞，造成局部质量不足的现象。
Sculptures must, for example, be stable, which requires an understanding of the properties of mass, weight distribution, and stress.
例如，雕塑必须是稳定的，这就需要理解质量、重量分布和压力的特性。
When I added FilmLoop to the TechCrunch DeadPool last month based on rumors of mass layoffs, it was clear there was more to the story.
上个月，当我基于大规模裁员的传言将 FilmLoop添加到TechCrunch 的DeadPool 时，很明显，故事还有更多内容。
In Mexico in 1944, many experts warned of mass starvation in developing nations where populations were expanding faster than crop production.
在1944年的墨西哥，许多专家警告，发展中国家的人口增长速度快于粮食生产，会出现大规模饥荒。
Most astronomers believe that the large concentration of mass at the galaxy's center is a black hole whose gravity is causing the gas to whirl.
大多数天文学家认为，星系中心的大量物质是一个黑洞，它的引力导致气体旋转。
A few astronomers thought they could see even more of a dinosaur-cosmos link, a pattern of mass extinctions occurring like clockwork in the geologic record.
一些天文学家认为他们可以看到更多的恐龙与宇宙之间的联系，这种大规模灭绝的模式就像地质记录上的时钟一样。
The rise of anti-happy art almost exactly tracks the emergence of mass media, and with it, a commercial culture in which happiness is not just an idea but an ideology.
反快乐艺术的兴起与大众传媒的出现几乎是同步的，与之相伴的是一种商业文化，在这种文化中，快乐不仅仅是一种主张，而是一种意识形态。
It reflected the fact that these decades saw a climb in general standards of living and avoidance of mass societal traumas like full-scale war or economic deprivation.
它反映了这样一个事实：在过去的几十年里，人们的总体生活水平有所提高，并且避免了大规模战争或经济匮乏等大规模社会创伤。
The cinema did not emerge as a form of mass consumption until its technology evolved from the initial "peepshow" format to the point where images were projected on a screen in a darkened theater.
电影播放技术由最初的“西洋镜”的形式演变而来，直到其发展到一个时期；在这个时期中，影像被投影到幽暗的影院屏幕之上，电影才作为一种大众消费的形式而出现。
Historians suggest that the advent of mass tourism began in England during the industrial revolution with the rise of the middle class and the availability of relatively inexpensive transportation.
历史学家认为，大众旅游的出现始于工业革命时期的英国，当时中产阶级崛起，交通费用也变得相对便宜。
Face-to-face contact is by no means the only form of communication and during the last two hundred years the art of mass communication has become one of the dominating factors of contemporary society.
面对面的交流绝不是沟通的唯一形式，在过去的两百年里，大众传播艺术已经成为当代社会的主导因素之一。
Another way of countering drought is to have a limited amount of mass above ground and to have extensive root networks below ground.
对付干旱的另一种方法是在地面上种植特定数量的植物，并且确保地下有广大的根系网络。
Roughly 250 million years ago, in the worst series of mass extinction in Earth's history, almost all species of life simply vanished.
大约2.5亿年前，在地球历史上最严重的一系列大灭绝中，几乎所有的生命物种都消失了。
London's Design Museum, for example, shows a collection of mass-produced exhibits from electric typewriters to a group of Italian fish-tins.
例如，伦敦的设计博物馆展出了批量生产的展品，从电动打字机到一组意大利鱼罐头。
Gaddafi also declared he would dismantle all weapons of mass destruction.
卡扎菲还宣称他将拆除所有的大规模杀伤性武器。
And so we have here a squash racquet and we have here the center of mass.
这里有一只壁球拍，这里是质量重心。
Okay, I'm going to do the same thing, and now look at that center of mass.
我会做同样的事，现在看质量重心。
I have here a triangle, and I have no clue where the center of mass is.
这里有个三角形，我不知道，重心在哪里。
But the center of mass is below the rope, and so there is really no danger.
但重心是低于绳子的，所以没有危险。
Warren Buffett once called derivatives financial instruments of mass destruction.
沃伦·巴菲特曾把衍生金融工具比作大规模杀伤性武器。
So this is a disk, and we just discussed the rotation about the center of mass.
这是圆盘，我们刚讨论过,绕质心旋转。
I'm going to explain to you now what we physicists mean by center of mass of a system.
我现在给你们解释，物理学家说的系统重心。
In this case, it will rotate about the center of mass, so it's not static equilibrium.
在这个例子里，它会绕着重心旋转，因此不存在静力平衡。
The spread of weapons of mass destruction is a clear threat to international peace and security.
大规模杀伤性武器的扩散是对国际和平与安全显而易见的威胁。
For example, take a disk center at the origin, well, the center of mass should be at the origin.
举个例子，取一个圆心为原点的圆盘，重心应该在原点。
Instead, like the rest of Washington, it's inventing reasons to dither in the face of mass unemployment.
反而，跟华盛顿的其他部门一样，以各种理由在面对大量失业的情况下犹豫不决。
Instead, like the rest of Washington, it's inventing reasons to dither in the face of mass unemployment.
反而，跟华盛顿的其他部门一样，以各种理由在面对大量失业的情况下犹豫不决。
应用推荐