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听力等级

科学研究   

2022-12-28   Video
These Dinosaurs Had a Complicated Air Conditioner in Their Skull

Keywords:

The mission of our lab is to try to unravel those secrets of how dinosaurs actually worked. The Whitmer lab has been here at Ohio University since 1995. We would run these things through a cat sc...

我们实验室的任务是试图解开这些恐龙实际上是如何工作的秘密。惠特默实验室来过这里自1995年以来一直在俄亥俄大学学习。我们会通过一个我们当地医院的猫扫描仪。所以我们可以透过骨头,弄清楚发生了什么事。我们有一个项目长期以来一直在关注这些动物是如...


2022-12-27   British English
Space Telescope

Keywords:

Science and technology. Astronomy. Psst. Want a space telescope? America's spies make a generous donation to NASA. AMERICA'S civilian space programme is built atop its military one. Its rockets ...

科技 天文学 喂,要太空望远镜吗? 美国间谍机构对NASA慷慨捐赠 美国的民用空间计划建立在军用基础之上,比如运载火箭,由携带核弹头并瞄准前苏联的弹道导弹发展而来,再往前可以追溯到二战时用于轰炸伦敦和安特卫普的德国V2系列...


2022-12-26   Intermediate
Fusion's False Dawn

Keywords:

Steve: Michael, let me just read the subhead of the article, "Fusion's False Dawn". "Scientists have long dreamed of harnessing nuclear fusion, the power plant of the star, for a safe, clean ...

史蒂夫:迈克尔,让我读一下这篇文章的副标题,“融合的虚假黎明”。“科学家们长期以来一直梦想着利用核聚变,即恒星的发电厂,实现安全、清洁和几乎无限的能源供应。即使在一个历史性的里程碑即将到来之际,怀疑论者也质疑是否有可能建造一个可用的反应堆”...


2022-12-24   Video
The Size of Life

Keywords:

Let's shrink an elephant to the size of a mouse and enlarge a mouse, and make it the size of an elephant, because this is our video, and we want to see what happens. First: our now tiny el...

让我们把大象缩小到鼠标的大小把鼠标放大,做成大象的大小,因为这是我们的视频,我们想看看会发生什么。第一:我们现在的小象,蹒跚而行然后死去。小象伙伴很冷;冷冻几分钟内死亡。我们的大老鼠看起来很不舒服一会儿,然后它爆炸了。到处都是热老鼠的内脏。...


2022-12-22   Intermediate
Algae, Art and Attitudes -Ⅱ

Keywords:

Steve: Then it should be pointed out that throughout history, I mean for thousands of years with the development of any new information storage technology like writing originally… Fischetti:...

史蒂夫:那么应该指出的是,纵观历史,我的意思是,在数千年的时间里,随着任何新的信息存储技术的发展,就像最初的写作一样…费谢蒂:是的。史蒂夫:……人们担心这会让我们变笨,但今天的孩子们不必记住我们的故事,因为他们可以随时写下来或阅读。然后,当...


2022-12-20   Intermediate
Algae, Art and Attitudes -Ⅰ

Keywords:

Fischetti: Well, I sat in on a number of the climate related sessions. One of them was a long session on algae and there was a growing perception that biofuel derived from algae really was no...

Fischetti:嗯,我旁听了一些与气候有关的会议。其中之一是关于藻类的长时间会议,越来越多的人认为,由于所需的营养物质和二氧化碳的数量,从藻类中提取的生物燃料真的没有多大意义。你打算从哪里得到所有的二氧化碳来养活这些藻类,从而生产生物燃...


2022-12-20   Video
What Is 5G

Keywords:

You’ve likely heard a lot about 5G lately. But what is it, exactly? 5G is the latest standard for mobile internet networks. Mobile telephone services have technically been around since the 1940...

你最近可能听说过很多关于5G的事情。但它到底是什么?5G是移动互联网网络的最新标准。从技术上讲,移动电话服务自20世纪40年代以来就已经存在了。但这些系统需要拨打80磅的话务员。汽车电话。而且网络一次只能处理几个电话,因为联邦通信委员会不允...


2022-12-18   Intermediate
The Poisoner's Handbook -Ⅱ

Keywords:

Steve: And carbon monoxide in particular, just a follow-up on that. You have to be alive to be poisoned by it, because you have to be breathing, because the carbon monoxide takes the place of the oxyg...

史蒂夫:特别是一氧化碳,我只是想跟进一下。你必须活着才能被它毒害,因为你必须呼吸,因为一氧化碳取代了氧气,它与血红素和血红蛋白结合。布鲁姆:没错。史蒂夫:比氧气更紧。布鲁姆:所以,你得到的不是氧合血红蛋白,它是血液中氧气的载体系统,而是碳氧...


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